RKI Eagle 2
RKI Eagle 2
RKI Eagle 2
Operators Manual
www.rkiinstruments.com
WARNING Read and understand this instruction manual before operating instrument. Improper use of the gas monitor could result in bodily harm or death. Periodic calibration and maintenance of the gas monitor is essential for proper operation and correct readings. Please calibrate and maintain this instrument regularly! Frequency of calibration depends upon the type of use you have and the sensor types. Typical calibration frequencies for most applications are between 1 and 3 months, but can be required more often or less often based on your usage.
Table of Contents
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . About the EAGLE 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 4 5
Chapter 2: Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Instrument Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Control Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Printed Circuit Boards (PCBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Alarm LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Infrared Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Battery Case & Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Flow System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Standard Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Shoulder Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Hose and Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Rechargeable Ni-MH Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Battery Chargers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Optional Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 External Dilution Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Chapter 3: Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turning On the EAGLE 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Performing a Demand Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turning Off the EAGLE 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the Battery Charger for Continuous Operation . . . . . . . . . . . . . . . . .
EAGLE 2 Operators Manual
22 22 22 27 27 28
Table of Contents
Measuring Mode, Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Monitoring an Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using Optional Sample Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using Exhaust Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Combustible Gas Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Monitoring Combustible Gas in the PPM or %Volume Range . . . . . Measuring Mode, Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alarm Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Resetting and Silencing Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . Responding to Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tips for Using Display Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peak Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Voltage Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gas Display Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Catalytic (LEL) Sensor Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Methane Elimination Mode Screen . . . . . . . . . . . . . . . . . . . . . . . . . . Relative Response Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STEL Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TWA Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . View Alarm Settings Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Select User ID Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Select Station ID Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Time in Operation Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Date/Time Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Logging Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29 29 30 30 30 32 34 34 36 37 39 39 40 41 41 42 42 42 45 45 45 47 49 50 51 51 52
54 55 55 56 56 58 62 62 63
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Updating the Alarm Latching Setting . . . . . . . . . . . . . . . . . . . . . . . Updating the Alarm Silence Setting . . . . . . . . . . . . . . . . . . . . . . . . Turning the User/Station ID Function On or Off . . . . . . . . . . . . . . Updating the Autocal Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Updating the Backlight Delay Setting . . . . . . . . . . . . . . . . . . . . . . Updating the Auto Fresh Air Setting . . . . . . . . . . . . . . . . . . . . . . . Updating the Data Log Interval Setting . . . . . . . . . . . . . . . . . . . . . Updating the Data Log Overwrite Setting . . . . . . . . . . . . . . . . . . . Updating the Data Log Memory Setting . . . . . . . . . . . . . . . . . . . . . Updating the LCD Contrast Setting . . . . . . . . . . . . . . . . . . . . . . . . Updating the Calibration Reminder Setting . . . . . . . . . . . . . . . . . . Updating the Calibration Past Due Action Setting . . . . . . . . . . . . Updating the Calibration Interval . . . . . . . . . . . . . . . . . . . . . . . . . Updating LC/BH Mode Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting the Bar Hole Measurement Time . . . . . . . . . . . . . . . . . . . . Zero Follower Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Zero Suppression Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Updating the Confirmation Alert Setting . . . . . . . . . . . . . . . . . . . . Turning the Password Function On or Off . . . . . . . . . . . . . . . . . . . Restoring the Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . Updating the Lunch Break Setting . . . . . . . . . . . . . . . . . . . . . . . . . Updating the Span Factor Setting . . . . . . . . . . . . . . . . . . . . . . . . . . Updating the Language Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . Exiting Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
111 112 112 113 114 114 115 116 116 117 117 118 118 119 120 120 120 121 121 122 124 124 125 125
PID Relative Response Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PID Sensor Relative Response Screen in Display Mode . . . . . . . . . PID Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning the PID Sensors Lamp. . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing PID Sensors Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing Electrode Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing the PID Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Configuring the PID Gas in Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
134 135 137 145 145 149 152 155 156 162
Table of Contents
Table of Contents
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236 Replacing the IR Hydrocarbon Sensor . . . . . . . . . . . . . . . . . . . . . . 236 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Table of Contents
WARNING: Understand manual before operating. Substitution of components may impair intrinsic safety. To prevent ignition of a hazardous atmosphere, batteries must only be changed or charged in an area known to be nonhazardous. Not tested in oxygen enriched atmospheres (above 21%). NOTE: RKI Instruments, Inc. recommends that you refer to ISA-RP12.13, Part II-1987 or an equivalent international recommended practice for guidance in the use of combustible gas detection instruments.
1 Table of Contents
Sample-drawing pump with up to 125 foot range Liquid crystal display (LCD) for complete and understandable information at a glance Ultrabright alarm LEDs Distinctive audible alarm for dangerous gas conditions or unit malfunction Microprocessor control for reliability, ease of use, and advanced capabilities
Overview 2
Data logging functions (when used in Normal Mode) Alarm trend data (when used in Normal Mode) STEL and TWA (when used in Normal Mode) and over range alarms Peak readings (when used in Normal Mode) Built-in time function Lunch break feature RF shielded high impact plastic case CSA classified for Class I, Division I, Groups A, B, C, and D hazardous atmospheres WARNING: The Model EAGLE 2 detects oxygen deficiency, elevated levels of oxygen, combustible gases, carbon monoxide, and hydrogen sulfide, all of which can be dangerous or life threatening. When using the EAGLE 2, you must follow the instructions and warnings in this manual to assure proper and safe operation of the unit and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the EAGLE 2 as described in this manual. NOTE: ONLY THE COMBUSTIBLE GAS DETECTION PORTION OF THIS INSTRUMENT HAS BEEN ASSESSED FOR PERFORMANCE.
Specifications
Table 1: Standard Sensor Specifications
Combustible Gas, Methane (CH4) Calibration Standard Detection Range Reading Increment Alarm 1 Factory Setting Alarm 2 Factory Setting STEL Alarm TWA Alarm 0 - 100 %LEL 1 %LEL 10 %LEL 50 %LEL n/a n/a Oxygen (O2) Hydrogen Sulfide (H2S) 0 - 100.0 ppm 0.5 ppm 10.0 ppm 30.0 ppm 15.0 ppm 10.0 ppm Carbon Monoxide (CO) 0 - 500 ppm 1 ppm 25 ppm 50 ppm 200 ppm 25 ppm
Combustible Gas (LEL), Catalytic Type Sensor -10C to 40C: 5% of full scale -20C to 50C: 6% of full scale Combustible Gas (ppm), Catalytic Type Sensor 25 ppm or 5% of reading (whichever is greater) Hydrogen Sulfide 5% of reading or 2 ppm H2S (whichever is greater) Carbon Monoxide 5% of reading or 5 ppm CO (whichever is greater)
Specifications 4
Safety/ Regulatory 186718 CSA classified as Intrinsically Safe. Exia. Class I, Groups A, B, C, & D. Temperature Code T3C. Power Supply Continuous Operating Hours @ 25 C Case Standard Accessories Four C size alkaline batteries, standard Four C size Ni-MH batteries, optional Alkaline Batteries: 16 Hours (Non Alarm Operation, Fully Charged) Ni-MH Batteries: 18 Hours (Non Alarm Operation, Fully Charged)
High-impact Plastic, RF Shielded, Dust and Weather Proof 5 foot hose Hydrophobic probe Shoulder Strap Rechargeable NiMH Batteries 115 VAC Charger 12 VDC Charger Hoses of Various Lengths, See General Parts List on page 80. Dilution Fitting (1:1 and 3:1) Various Probes, See General Parts List on page 80 Data Logger Management Program (Windows 2000, XP, and Vista) Maintenance Data Loader Program (Windows 2000, XP, and Vista) IrDA/USB Cable for connecting to a computer when using the Data Logger Management Program and Maintenance Data Loader Program (not needed if computer has an infrared port) Approximately 171(H) x 65(W) x 39(D) mm (5.6H x 2.5W x 1.5D) Approximately 310 g (11 oz.)
Optional Accessories
Chapter 3 describes the operation of the EAGLE 2. Chapter 4 describes Calibration Mode which allows you to calibrate the EAGLE 2s active channels. Chapter 5 describes the EAGLE 2s maintenance requirements and procedures. Appendix A describes calibration of the EAGLE 2 using a sample bag. Appendix B describes Setup Mode which allows you to configure different parameters of the EAGLE 2. Appendix C describes the sub PCBs that are installed for optional sensors and how they affect gas and channel configuration. Appendix D describes the PID sensors and the operation of the EAGLE 2 with a PID sensor installed. Appendix E describes the ESM-01 sensors and the operation of the EAGLE 2 with an ESM-01 sensor installed. Appendix F describes the TC sensors and the operation of the EAGLE 2 with a TC sensor installed. Appendix G describes the infrared CO2 sensors and the operation of the EAGLE 2 with an infrared CO2 sensor installed. Appendix H describes the infrared methane sensors and the operation of the EAGLE 2 with an infrared methane sensor installed. Appendix I describes the infrared hydrocarbon sensor and the operation of the EAGLE 2 with an infrared hydrocarbon sensor installed. Appendix J describes the operation of the EAGLE 2 in Methane Elimination Mode. Appendix K describes the operation of the EAGLE 2 in Bar Hole Mode. Appendix L describes the operation of the EAGLE 2 in Leak Check Mode. Appendix M describes the Tank Tester Model of the EAGLE 2.
Instrument Description
The EAGLE 2 includes the case, sensors, LCD, control buttons, printed circuit boards, alarm LEDs, infrared communication port, buzzer, battery case and batteries, and flow system.
AIR YE S
RANGE SHIFT
7 Overview
Case Foot, 6X
Bottom Case
Buzzer
Infrared Port
Instrument Description 8
Case
The EAGLE 2s sturdy, high-impact plastic case is radio frequency (RF) resistant and is suitable for use in many environmental conditions, indoors and out. The case is dust proof and water resistant. Its two main components, the top case and bottom case, are held together with three screws located on the bottom case. The interface between the top case and bottom case is gasketed. A sturdy, well balanced handle on the top case allows you to hold the instrument comfortably. A clear plastic window is located on the top case to the front of the handle for viewing the LCD. A removable battery case is located at the rear of the bottom case. A thumbscrew secures the battery case to the bottom case. The interface between the battery case and the bottom case is gasketed. Six raised feet on the bottom of the case, four on the bottom case and two on the battery compartment, raise the EAGLE 2 slightly from the surface on which it rests.
Sensors
The EAGLE 2 uses up to six sensors to monitor combustible gas, oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), and various other toxic gases simultaneously. The sensors are located inside the EAGLE 2 bottom case and are installed in the flow chamber. The sensors described below are the four standard sensors. See Appendix D: PID Sensors for a description of the PID sensors, Appendix E: ESM-01 Toxic Sensors for a description of the ESM-01 toxic sensors, Appendix F: TC Sensors for a description of the TC sensors, Appendix G: Infrared Carbon Dioxide Sensors for a description of the IR CO2 sensors, Appendix H: Infrared Methane Sensor for a description of the IR methane sensors, and Appendix I: Infrared Hydrocarbon Sensor for a description of the IR hydrocarbon sensor. The standard sensors use different detection principles as described below.
Catalytic Combustible Gas Sensor (LEL Sensor)
The catalytic combustible gas (LEL) sensor detects combustible gas in the %LEL range. It uses a catalytic element for detection. The reaction of gas with oxygen on the catalyst causes a change in the resistance of the element which changes the current flowing through it. The current is amplified by the EAGLE 2s circuitry, converted to a measurement of combustible gas concentration, and displayed on the LCD. The LEL sensor housing includes a sintered metal flame arrestor on one end that allows gas to diffuse into the sensor. On the other end, five pins extend from the sensor. The sensor cable connects to these pins on one end and terminates in a four-position connector on the other end which plugs into the HC socket on the main PCB (see Main PCB on page 13).
9 Instrument Description
Oxygen Sensor
The O2 sensor is a galvanic type of sensor. A membrane behind the openings on the sensor face allows gas to diffuse into the sensor at a rate proportional to the partial pressure of oxygen. The oxygen reacts in the sensor and produces a voltage proportional to the concentration of oxygen. The voltage is measured by the EAGLE 2s circuitry, converted to a measurement of gas concentration, and displayed on the LCD. The sensor includes a short cable that terminates in a round 7-position connector. It mates with the OXY pins on the main PCB (see Main PCB on page 13).
CO and H2S Sensors
The CO and H2S sensors are electrochemical sensors that consist of three precious metal electrodes in a dilute acid electrolyte. A gas permeable membrane covers the sensor face and allows gas to diffuse into the electrolyte. The gas reacts in the sensor and produces a current proportional to the concentration of the target gas. The current is amplified by the EAGLE 2s circuitry, converted to a measurement of gas concentration, and displayed on the LCD. The CO and H2S sensors are physically very similar. Except for their markings and wire colors, they look almost identical. A three-position connector at the end of a 2-wire cable from each sensor plugs into a socket on the main PCB. The sockets on the main PCB for the CO and H2S sensors are labeled CO and H2S. Normally, the CO connector plugs into the CO socket and the H2S plugs into the H2S socket. However, because of the way that the main PCB circuitry is arranged, if the CO sensor is plugged into the H2S socket and the H2S sensor is plugged into the CO socket, the sensors will still operate properly and the CO and H2S readings will still appear on the channels that are programmed for those gases.
LCD
A digital LCD (liquid crystal display) is visible through a clear plastic window in the top case. The LCD simultaneously shows the gas reading for all installed sensors. The LCD also shows information for each of the EAGLE 2s operating modes.
Instrument Description 10
Control Buttons
Four control buttons are located below the LCD. They are, from left to right, POWER ENTER RESET, DISPLAY ADJUST NO, AIR YES, and RANGE SHIFT.
Table 3: EAGLE 2 Control Button Functions
Button POWER ENTER RESET Function(s) turns the EAGLE 2 on and off silences and resets audible alarm if Alarm Latching is set to Latching and Alarm Silence is set to ON enters instructions, values, and settings into the EAGLE 2s microprocessor activates Display Mode silences and resets audible alarm if Alarm Latching is set to Latching and Alarm Silence is set to ON enters instructions into the EAGLE 2s microprocessor activates the demand zero function (adjusts the EAGLE 2s fresh air reading) silences and resets audible alarm if Alarm Latching is set to Latching and Alarm Silence is set to ON enters instructions into the EAGLE 2s microprocessor moves the cursor on the LCD up the screen increases the value of a parameter available for adjustment scrolls through parameter options changes the detection units of the combustible gas channel (when Catalytic Units is set to CHANGE OK in Setup Mode) silences and resets audible alarm if Alarm Latching is set to Latching and Alarm Silence is set to ON enters instructions into the EAGLE 2s microprocessor moves the cursor on the LCD down the screen decreases the value of a parameter available for adjustment scrolls through parameter options
DISPLAY ADJUST NO
AIR YES
RANGE SHIFT
11 Instrument Description
Display PCB
The EAGLE 2s PCBs analyze, record, control, store, and display the information collected. The main PCB and I.S. barrier PCB are located in the bottom case. The display PCB is located in the top case. The display PCB and I.S. barrier PCB are not user serviceable and are not involved in any user performed maintenance. The main PCB is not user serviceable, but it is involved in the replacement of sensors, so it is described below.
Instrument Description 12
Display connector
H2S Connector (H2S) CO Connector (CO) LEL Connector (HC) I.S. Barrier Connector Oxygen Connector Pins (OXY)
DP Switch Connector
Pump Connector
The main PCB is located on the right side of the bottom case. It slides into guiding grooves at the bottom, front, and rear of the bottom case. It is held in place by the top case. Connectors for the sensors, differential pressure switch, pump, display PCB, optional float probe, and I.S. barrier PCB are located on the main PCB. In addition, an IR transmitter/receiver is located at the front of the PCB behind the IR port on the front of the bottom case.
Alarm LEDs
Two sets of red alarm LEDs (light emitting diodes) are visible through two raised, frosted plastic lenses in the top case. Each set has two LEDs. They are above the LCD, one above the left corner and one above the right corner. The alarm LEDs alert you to gas, low battery, and failure alarms.
13 Instrument Description
infrared port or an IrDA/USB cable connected to a USB port can be used to download data saved by the EAGLE 2 to a computer using the Eagle 2 Data Logger Management Program. See the Data Logger Management Program operators manual for data logging and downloading instructions.
Buzzer
A solid-state electronic buzzer is located on the front of the top case. It is a panel mounting type of buzzer and is water resistant and sealed to the inside of the top case with an O-ring. The buzzer sounds for gas alarms, malfunctions, low battery voltage, and as an indicator during use of the EAGLE 2s many display and adjustment options.
Instrument Description 14
Flow System
The EAGLE 2 flow system consists of the inlet fitting, hydrophobic filter, pump, internal tubing, differential pressure (DP) switch, sensor chamber, charcoal filter, and exhaust fitting.
Inlet Fitting
The inlet fitting is on the right front (when viewed from the front) of the bottom case. It is a nickel plated brass quick connect fitting. It mates with either the sample hose or with the hydrophobic probe.
Hydrophobic Filter
The hydrophobic filter is located in the bottom case above the sensors. Normally the hydrophobic probe accessory (see Hose and Probe on page 16) will prevent water and particulate contamination from entering the flow system, but if the probe is not used, the hydrophobic filter will stop water and particulates from penetrating further into the flow system. If it becomes dirty or water logged, replace it (see Replacing the Hydrophobic Filter on page 73).
Pump
A diaphragm pump inside the rear of the bottom case draws the sample to the sensors. It can draw sample from as far as 125 feet from the EAGLE 2. CAUTION: Sample hose lengths of more than 125 feet are not recommended for the EAGLE 2 because of flow rate reduction and increased response time. Consult RKI Instruments, Inc. for sample hose lengths longer than 125 feet.
Internal Tubing
The flow system includes polyurethane tubing to route the sample between the various components of the flow system. The internal sample tubing is not user serviceable.
Differential Pressure (DP) Switch
The DP switch is inside the front of the bottom case. It senses the EAGLE 2s flowrate by monitoring the pressure drop between points in the flow system. When the flowrate becomes too low for safe operation of the EAGLE 2, a set of contacts inside it open and the EAGLE 2 indicates a low flow alarm.
Sensor Chamber
A PVC block in the bottom case is configured to accept the four gas sensors. It routes the sample to each sensor. The LEL sensor and the oxygen sensor are retained in the sensor chamber by brackets. The CO and H2S sensors are each pushed past two sealing O-rings into the chamber and are retained by
15 Instrument Description EAGLE 2 Operators Manual
The charcoal filter is located in the front of the flow chamber next to the CO sensor. It contains activated charcoal. The CO sensor will respond if exposed to H2S and certain hydrocarbon gases. The charcoal filter scrubs these gases out of the sample to avoid false CO readings. If false or elevated CO readings are noticed, especially in the presence of H2S, change the charcoal filter. The charcoal inside the filter cannot be replaced; the entire filter must be replaced.
Exhaust Fitting
The exhaust fitting is located below the inlet fitting. It routes the gas sample out of the EAGLE 2. It includes a female 10-32 thread that can be used for the installation of a hose barb or other type of fitting that has a male 10-32 thread so that the exhaust can be routed to a particular location with flexible tubing if desired.
Standard Accessories
Standard accessories include the shoulder strap, the sample hose, and the hydrophobic probe.
Shoulder Strap
A comfortable elastic shoulder strap clips to the EAGLE 2 at the front and rear of the top case. It clips to stainless steel rings that are installed in features on the top case. It can be removed from the EAGLE 2 by opening the clip at each end of the strap and removing it from the strap ring at the front and rear of the top case.
Standard Accessories 16
CAUTION: Sample hose lengths of more than 125 feet are not recommended for the EAGLE 2 because of flow rate reduction and increased response time. Consult RKI Instruments, Inc. for hose lengths longer than 125 feet. The probe includes a replaceable hydrophobic filter disk that prevents particulates and water from entering the EAGLE 2s flow system. See Replacing the Hydrophobic Probes Filter Disk & O-ring on page 72 for instructions to replace the hydrophobic filter disk.
Sample Hose
Probe
Optional Accessories
Several optional accessories are available for the EAGLE 2. They include rechargeable Ni-MH batteries, battery chargers, various special probes, and dilution fittings. The most commonly used optional accessories are described below. Detailed instructions regarding the use of these and other available accessories are included in other parts of this manual. Data logging accessories are briefly described in Data Logging on page 52.
17 Optional Accessories
Battery Chargers
Three battery chargers are available for the EAGLE 2 to charge the optional Ni-MH batteries, the standard AC charger, a DC charger with a vehicle plug adapter, and an AC/DC charger with a vehicle plug adapter.
AC Charger
The standard AC charger consists of the charging module, which includes all of the charging circuitry, and an AC adapter. The charging module includes a five foot cable with a connector on the end that mates with the EAGLE 2 charging socket. The AC adapter plugs into a 115 VAC wall outlet and connects to the charging module with a jack on the end of a five foot DC output cable. The AC adapter will also work for 100 VAC or 220 VAC if an appropriate plug adapter is provided. The AC charging station is shown below in Figure 7.
AC Adapter
DC Charger
An optional DC powered charger is available with a vehicle plug 12 VDC adapter. It uses the same charging module as the standard AC charger.
Vehicle Plug DC Adapter
Charging Module
Optional Accessories 18
AC/DC Charger
A charger is also available that includes both the AC adapter and the 12 VDC vehicle plug adapter. The charging module is the same as the one used for the AC charger and the DC charger.
Optional Probes
Various optional probes designed for specific applications are available for the EAGLE 2. They include the following: 10 inch super toxic probe
This probe is used for certain versions of the EAGLE 2 that detect toxic gases that are absorbed by the standard probe. This probe has a plastic fitting that accepts 1/4 inch O.D. rigid plastic tubing instead of the male quick connect fitting used on the standard 10 inch probe. An EAGLE 2 that uses the super toxic probe has an inlet fitting that accepts 1/4 inch O.D. rigid plastic tubing instead of the female quick connect fitting on the standard EAGLE 2. 30 inch aluminum probe
This probe is designed for applications where it is necessary to put the probe tip in areas that are out of reach with the standard probe. A small breather hole near the end of the probe tube prevents interruption of sampling and a low flow alarm if the probe tip is blocked. 30 inch stainless steel probe
19 Optional Accessories
This probe is physically the same as the 30 inch aluminum probe and is intended for applications where a high level of corrosion resistance is required in the long probe tube. 4 foot stainless steel probe
This probe is designed for areas where it is necessary to put the probe tip in areas that are out of reach for even the 30 inch probes. A stainless steel probe tube is used because the length of the probe tube requires a high degree of rigidity. Stainless steel is more rigid than other normally used materials. A small breather hole near the end of the probe tube prevents interruption of sampling and a low flow alarm if the probe tip is blocked. Barhole probe
This probe is designed specifically for barhole testing. See Appendix K: Using the EAGLE 2 in Bar Hole Mode for an in-depth discussion of using the EAGLE 2 in Bar Hole Mode. 10 inch probe with dust filter
This probe is designed for use where drawing water or moisture into the EAGLE 2 is not a concern. Instead of a hydrophobic filter, a cotton dust filter is used. 32 inch telescoping probe with dust filter
Optional Accessories 20
This probe is designed for use where it is necessary to put the probe tip in areas not accessible with the 10 inch probe with dust filter and applications where the probe tube must be collapsible for storage. 7 foot telescoping probe with dust filter
This probe is designed for use where it is necessary to put the probe tip in areas not accessible with the 32 inch telescoping probe with dust filter and applications where the probe tube must be collapsible for storage. See General Parts List on page 80 for probe ordering information.
21 Optional Accessories
Start Up
This section explains how to start up the EAGLE 2, get it ready for operation, and turn it off. NOTE: The screens illustrated in this section are for a standard 4-gas unit. The screens displayed by your EAGLE 2 may be slightly different.
Overview 22
4. The LCD will show the following screen for about ten seconds.
GAS MONITOR
EAGLE 2
5. The Battery Voltage Screen appears for a few seconds.
7. If LUNCH BREAK is turned on (see Updating the Lunch Break Setting on page 124), the Resume Measurement Screen appears. The unit counts down from 5 seconds in the lower right corner of the LCD to the right of MEASUREMENTS.
23 Start Up
from the last time the EAGLE 2 was used. See Time in Operation Screen on page 50 for more information about how the EAGLE 2 tracks the operating time. The short-term exposure limit (STEL) reading is reset each time the EAGLE 2 is turned on. To reset the accumulation of these measurements, press and release the DISPLAY ADJUST NO button before the countdown reaches 0.
8. The gas alarm setpoints are displayed by three screens in sequence: the Low Alarm Screen, High Alarm Screen, and STEL/TWA Alarm Screen. Each screen remains on the LCD for three seconds.
A CH4 10 %LEL L L OXY 19.5 vol% O A H2S 10.0 ppm WR CO 25 ppm M CH4 10 vol% S A CH4 50 %LEL HL OXY 23.5 vol% I A H2S 30.0 ppm GR CO 50 ppm HM CH4 50 vol% S ALARMS STEL & TWA H2S(ppm) 15.0 10.0 CO (ppm) 200 25
9. After the alarm screens, if CAL REMINDER is turned on, the screen that appears next depends on how CAL PAST DUE ACT is set in the Setup Mode Menu (see Updating the Calibration Past Due Action Setting on page 118).
Start Up 24
If the unit is due for calibration and CAL PAST DUE ACT is set to CONFIRM TO CAL, then the following screen displays and the buzzer sounds in a double pulsing pattern.
25 Start Up
NOTIFICATION ONLY, then the following alert screen displays and the buzzer sounds in a double pulsing pattern.
9/12/2008 15:00:00
11. If USER/STATION ID is turned on (see Turning the User/Station ID Function On or Off on page 112), the ID Screen appears for a few seconds.
FAILED SENSOR(S) < > < > <H2S> < > ENTER TO CONTINUE
If you wish to continue, press and release the POWER ENTER RESET
Start Up 26
button to acknowledge the failure. The gas reading for the failed sensor will be replaced by XXX. Replace the failed sensor as soon as possible. 13. The EAGLE 2 is now monitoring for gas in Measuring Mode. The Normal Operation Screen appears displaying the current gas reading for each target gas.
27 Start Up
8. See Chapter 3: Operation on page 22 for instructions for start-up and operation of the EAGLE 2. 9. While the charging module is powering the EAGLE 2, its amber LED will be off and its green LED will be on.
Monitoring an Area
1. Start up the EAGLE 2 as described above in Start Up on page 22. It is now in Measuring Mode.
2. Take the EAGLE 2 to the monitoring area. Put the probe tip in the area to be monitored. 3. Wait 10 - 15 seconds and observe the display for gas readings. If a reading is observed, allow the reading to stabilize to determine the gas concentrations present. NOTE: Response time increases with the length of the sample hose. Long sample hoses will require more time to show a response at the EAGLE 2. The maximum sample hose length recommended for the EAGLE 2 is 125 feet. Consult RKI Instruments, Inc. for longer sample hose lengths. 4. If a gas alarm occurs, take appropriate action. See Responding to Alarms on page 37
Probe Only Probe & 5 Foot Hose Probe & 25 Foot Hose Probe & 50 Foot Hose Probe & 75 Foot Hose Probe & 100 Foot Hose Probe & 125 Foot Hose
combustible channel will reflect the target gas. The table below lists the conversion factors for several hydrocarbon gases if the EAGLE 2 is calibrated to methane. To use this table, multiply the display reading on the combustible gas channel by the factor in the appropriate row to obtain the actual gas concentration. For example, if you are detecting pentane and the display reads 10% LEL for the catalytic combustible channel, you actually have 10% LEL x 1.35 = 13.5% LEL pentane present.
Table 5: Full Response Mode Conversion Factors (Methane Calibration)
Target Gas LEL Factor PPM Factor Target Gas LEL Factor PPM Factor
Acetone Benzene Butyl Acrylate Butyl Acetate 2-Butyl Alcohol 1-Butyl Alcohol Cyclohexane Cumene Ethylene Dichloride Ethyl Alcohol Ethyl Chloride Ethyl Acrylate Hexane Hydrogen
1.49 2.58
0.74 0.62 0.85 0.89 0.73 1.23 0.71 0.80 6.46 0.97 1.00 0.95 0.56 0.99
Isobutane Isopropanol Methane Methanol Methyl Acetate Methyl Acrylate Methyl Ethyl Keytone Methyl Isobutyl Keytone Mixed Xylenes Nonane Pentane Propane Styrene Toluene Vinyl Acetate Monomer
1.51 2.17 1.00 1.49 1.40 2.12 2.66 3.33 3.47 4.24 1.38 1.23 4.46 3.21 2.36
0.54 0.87 1.00 1.79 0.87 1.19 0.74 0.80 0.76 0.68 0.41 0.51 0.80 0.70 1.23
*
3.42 2.14 4.39 2.72 4.46 5.21 1.47 1.52 3.38 2.56 1.24
The EAGLE 2 provides the catalytic combustible sensor with some protection against exposure to high levels of combustible gas which can damage the sensor. It does this by turning off the combustible sensor power temporarily when it determines that an over scale (more than 100% LEL) concentration of combustible gas is present that may damage the sensor. Nevertheless, concentrations of combustible gas of more than
31 Measuring Mode, Normal Operation EAGLE 2 Operators Manual
100% LEL can still affect the zero level or calibration of the combustible sensor if the concentration is high enough. CAUTION: Do not expose the catalytic combustible sensor to high concentrations of combustible gas such as that from a butane lighter. Exposure to high concentrations of combustible gas may adversely affect the performance of the sensor. CAUTION: Any rapid increase in the combustible gas reading on the catalytic combustible channel followed by a declining or erratic reading may indicate a gas concentration above the LEL which may be hazardous. Some gases such as silicone vapors, chlorinated hydrocarbons, and sulphur compounds can contaminate the detection elements inside the combustible sensor damaging the sensor and result in reduced response to combustible gas. Make every effort to avoid these gases. The catalytic combustible sensor has an integral H2S scrubber for protection from H2S exposure resulting from normal use, but you should avoid exposure to high levels of H2S and other sulphur compounds.
If the Catalytic Units menu item in Setup Mode is set to CHANGE OK, the standard factory setting, then you can change the catalytic combustible channels units by pressing and releasing RANGE SHIFT.
RANGE SHIFT
RANGE SHIFT
RANGE SHIFT
There are special considerations that must be taken into account when monitoring combustible gas in the ppm range with the catalytic combustible channel. Because of the high sensitivity in the lower part of the ppm range, the catalytic combustible channel needs more time than the warm-up period to stabilize after the EAGLE 2 is turned on if it is going to be used for ppm level detection. The reading increments in the ppm range are smallest in the lower part of the range and increase as the reading increases as follows: 5 ppm increments from 0 ppm to 200 ppm 10 ppm increments from 200 ppm to 1,000 ppm 50 ppm increments from 1,000 ppm to 10,000 ppm 250 ppm increments from 10,000 ppm to 50,000 ppm
If the catalytic combustible channel is configured for the user defined gas in Setup Mode (see Configuring the Combustible Gas on page 103), the ppm ratio defined for the gas must be considered. For example, if the ppm ratio is set higher than 50,000 ppm, then when the display units are set as ppm, the reading will not go above 50,000 ppm which is equivalent to 33 % LEL and 5 %volume. So if the gas reading is higher than 50,000 ppm, the ppm unit reading will indicate 50,000 ppm and also indicate an overscale condition.
The %LEL and %volume unit readings will still increase up to 100% LEL and 15 %volume respectively, which are equivalent to 150,000 ppm. The catalytic combustible sensor is slightly affected by humidity. This is not apparent when the EAGLE 2 is used for %LEL or %volume detection, but because of the high sensitivity in the ppm range, significant humidity changes can affect the ppm reading, especially in the lower part of the range. Take care to allow the unit to acclimate to a new environment for about a minute and perform a demand zero in a fresh air location when you move between areas of different humidity. To monitor for combustible gas in the ppm range: 1. Start up the EAGLE 2 as described in Start Up on page 22. 2. Allow the EAGLE 2 to run for 3 - 5 minutes after the startup sequence is complete and it is in Measuring Mode. This allows the catalytic combustible sensor to stabilize sufficiently for ppm monitoring. NOTE: This extra stabilization period is not necessary if monitoring in the %LEL or %volume range. 3. Set the catalytic combustible channels units to be ppm by using the RANGE SHIFT button. 4. Perform a demand zero as described in Performing a Demand Zero on page 27. 5. Proceed to monitor for gas as described in Monitoring an Area on page 29.
Alarm Indications
The EAGLE 2 will sound an alarm and flash the LED arrays when one of the target gas concentrations rises above the Low Alarm level, or in the case of oxygen falls below the Low Alarm level, for that gas. The EAGLE 2 also sounds an alarm and flashes the LED arrays when one of
the target gas concentrations rises above the High Alarm level and when the STEL and TWA alarm levels are reached for CO and H2S. NOTE: If an alarm condition occurs while you are in Display Mode, the EAGLE 2 will automatically bring up the alarm screen instead. When a failure condition occurs, such as a sensor failure, low flow, or dead battery condition, the unit will also sound an alarm and flash the LED arrays. The table below summarizes the types of alarms produced by the EAGLE 2 and their indications.
Table 6: Alarm Types and Indications
Alarm Type Visual Indications Audible Indication
Low Alarm
Concentration of gas rises above the Low Alarm setting or falls below the Low Alarm setting for O2.
ALRM1 appears next to gas reading Alarm LED arrays flash once per second Backlight turns on ALRM2 appears next to gas reading Alarm LED arrays flash twice per second Backlight turns on Alarm LED arrays flash once per second Backlight turns on TWA or STEL appears next to gas reading OVER appears next to gas reading Gas reading indicates full scale Alarm LED arrays flash twice per second Backlight turns on The display indicates FAIL LOW FLOW LEVEL Alarm LED arrays flash in a double pulsing pattern once per second Backlight turns on BATT appears vertically along the left side of LCD
High Alarm
Concentration of gas rises above the High Alarm setting.
TWA or STEL
Concentration of CO or H2S rises above the TWA or STEL alarm setting.
Over Range
Low Flow
None
Gas readings replaced by RECHARGE INSTRUMENT BATTERIES Alarm LED arrays flash in a double pulsing pattern once per second FAILED SENSOR(S) appears at the top of the display and the failed sensor(s) are indicated Alarm LED arrays flash in a double pulsing pattern once per second
Sensor Failure
ALARM SILENCE set to ON and ALARM LATCHING set to LATCHING are the factory settings. When the EAGLE 2 goes into gas alarm, press and release any button to silence the buzzer. If the gas concentration was still above the alarm level when the button was pressed, the LED arrays continue to flash, and the EAGLE 2 continues to display the current alarm level. The gas reading must fall below (or rise above for an oxygen low alarm) an alarm setting before you can reset the alarm. When the alarm condition passes, press and release the POWER ENTER RESET button to reset the
alarm. The LED arrays turn off and the EAGLE 2 alarm indications on the display turn off.
ALARM SILENCE Off and Alarms Set to LATCHING:
The gas reading must fall below (or rise above for an oxygen low alarm) an alarm setting before you can reset the alarm. When the alarm condition passes, press and release the POWER ENTER RESET button to reset the alarm. The LED arrays and buzzer turn off and the EAGLE 2 alarm indications on the display turn off.
ALARM SILENCE On and Alarms Set to SELF RESETTING:
When the EAGLE 2 goes into gas alarm, press and release any button to silence the buzzer. The POWER ENTER RESET button will not reset the alarm. When the gas reading falls below (or rises above for an oxygen low alarm) an alarm setpoint, the alarm will automatically reset. The LED arrays turn off and the EAGLE 2 alarm indications on the display turn off.
With ALARM SILENCE Off and Alarms Set to SELF RESETTING:
When the EAGLE 2 goes into gas alarm, the POWER ENTER RESET button will not silence or reset the alarm. When the gas reading falls below (or rises above for an oxygen low alarm) an alarm setpoint, the alarm will automatically reset. The LED arrays and buzzer turn off and the EAGLE 2 alarm indications on the display turn off.
Responding to Alarms
This section describes response to gas, over range, battery, and sensor failure alarms.
Responding to Gas Alarms
1. Determine which gas alarm has been activated. 2. Follow your established procedure for an increasing gas condition or a decreasing oxygen condition. 3. If necessary, reset the alarm using the POWER ENTER RESET button once the alarm condition has passed.
Responding to Over Range Alarms
WARNING: An over range condition may indicate an extreme combustible gas, toxic gas, or oxygen concentration. Confirm a normal condition with a different EAGLE 2 or with another gas detecting device. 1. Determine which channel is in alarm. 2. Follow your established procedure for an extreme gas condition.
3. Reset the alarm using the POWER ENTER RESET button once the alarm condition has cleared. 4. Calibrate the EAGLE 2 as described in Chapter 4: Calibration Mode on page 54. 5. If the over range condition continues or if you are not able to successfully calibrate the unit, you may need to replace the sensor that has triggered the over range alarm. 6. If the over range condition continues after you have replaced the sensor, contact RKI Instruments, Inc. for further instructions.
Responding to Battery Alarms
WARNING: The EAGLE 2 is not operational as a gas monitoring device during a dead battery alarm. Take the Model EAGLE 2 to a non-hazardous area and replace or recharge the batteries as described in Replacing or Recharging the Batteries on page 69. The EAGLE 2 is fully functional during a low battery warning. However, only a limited amount of operating time remains, approximately 1 - 2 hours. The amount of time depends on how often the LCD backlight is used and how often the unit is responding to alarm conditions. Recharge the Ni-MH batteries or replace the alkaline batteries as soon as possible as described in Replacing or Recharging the Batteries on page 69. NOTE: Alarms and the LCD back light consume battery power and reduce the amount of operating time remaining.
Responding to Sensor Failure Alarms
1. Determine which sensor has triggered the sensor failure alarm. 2. Try calibrating the sensor first, as described in Chapter 4: Calibration Mode on page 54 before replacing it. 3. If the sensor failure continues, replace the sensor as described in Replacing a Sensor on page 76. 4. If the sensor failure condition continues after you have replaced the sensor, contact RKI Instruments, Inc. for further instructions.
Display Mode
Two other operating modes are accessible when the EAGLE 2 is in Measuring Mode. They are Display Mode and Calibration Mode. This section describes using the EAGLE 2 in Display Mode. In Display Mode you can: display peak readings display the minimum operating and current battery voltage select how the active channels are displayed on the LCD turn the catalytic LEL sensor on or off (if there is a TC or infrared combustible channel along with a catalytic combustible channel) enable or disable methane elimination mode (if the catalytic combustible gas channel is configured appropriately in the CONFIGURE GASES item in Setup Mode) temporarily configure the catalytic combustible channel for a target gas other than the one used for calibration (if the RELATIVE RESPONSE item in Setup Mode is set to ON) display STEL readings (H2S and CO only) display TWA readings (H2S and CO only) display alarm settings select the user ID (if the USER/STATION ID item in Setup Mode is set to ON) select the station ID (if the USER/STATION ID item in Setup Mode is set to ON) display time in operation display date and time display remaining data logging time and clear data logger memory (if the DATA LOG MEMORY item in Setup Mode is set to ON)
RANGE SHIFT button. NOTE: Each screen displays for 20 seconds. If you do not press a button within 20 seconds, the EAGLE 2 automatically returns to Measuring Mode.
Peak Screen
The peak screen displays the highest (lowest for oxygen) concentrations detected since the EAGLE 2 was turned on. Peak readings are stored in the EAGLE 2s memory until a higher level is detected (lower for oxygen), the peak reading is cleared, or the EAGLE 2 is turned off. The lunch break feature enables the EAGLE 2 to save peak readings when it is turned off so it can continue them when it is turned on again. See Turning On the EAGLE 2 on page 22
To clear the peak readings, do the following: 1. With the Peak Screen displayed, press and release the POWER ENTER RESET button. The following screen will appear.
2. Press and release the AIR YES button. The peak readings will be reset and the unit will return to the Peak Screen. If you do not want to clear the peak readings, press and release the DISPLAY ADJUST NO button and the unit will return to the Peak Screen without clearing the peak readings.
Display Mode 40
You can display all of them on the screen at the same time, one at a time with automatic scrolling, or one at time with manual scrolling. The factory setting displays all of the active channels at the same time. To select how to display the active channels, do the following: 1. With the Gas Display Screen displayed, press and release the AIR YES button. The following screen will appear with the cursor blinking.
41 Display Mode
If you do not want to change the setting, press and release the DISPLAY ADJUST NO button and the unit will return to the Gas Display Screen.
DISABLED
The standard setup for methane (CH4) does not support methane elimination. When applicable, use this screen to enable and disable the methane elimination feature. See Appendix J: Methane Elimination Mode for more discussion of the methane elimination feature. 1. With the Methane Elimination Mode Screen displayed, press and release the AIR YES or RANGE SHIFT button to toggle to the desired setting, ENABLED or DISABLED. 2. Press and release the POWER ENTER RESET button. The unit will save the setting and proceed to the next menu item. If you changed the setting and do not want to save the change, press and release the DISPLAY ADJUST NO button to continue to the next menu item without saving the change.
Display Mode 42
43 Display Mode
2. Use the AIR YES or RANGE SHIFT buttons to move the cursor next to the desired gas. 3. Press and release POWER ENTER RESET. The catalytic combustible channel will be configured to the selected gas and the EAGLE 2 will proceed to the STEL Screen. This configuration will be in force until either a different gas is selected in Display Mode or the unit is turned off. NOTE: If a PID sensor is installed in the EAGLE 2 and CATALYTIC SENSOR RELATIVE RESPONSE is set to ON in Setup Mode, a PID Sensor Relative Response Screen appears after the Catalytic Sensor Relative Response Screen. If CATALYTIC SENSOR RELATIVE RESPONSE is set to OFF, the PID Sensor Relative Response Screen will still appear after the Methane Elimination Mode Screen. See PID Relative Response Feature on page 134 for a description of the relative response feature for the PID sensor. NOTE: If Methane Elimination Mode is enabled, the Catalytic Sensor Relative Response screen does not appear.
Display Mode 44
STEL Screen
The STEL Screen displays the short term exposure limit (STEL) readings for H2S and CO only. The STEL reading is the average reading over the last 15 minutes.
TWA Screen
The TWA Screen displays the time weighted average (TWA) readings for H2S and CO only.
The TWA reading is the average reading over the last 8 hours. If 8 hours have not elapsed since the last time the TWA reading was cleared, the average is still calculated over 8 hours. The missing time is assigned a 0 value for readings. If the lunch break feature is turned off, the TWA is cleared when the EAGLE 2 is turned off. The lunch break feature enables the EAGLE 2 to remember TWA readings when it is turned off so it can continue them when it is turned on again. See Turning On the EAGLE 2 on page 22
To view the gas alarm settings, do the following: 1. With the View Alarm Settings Screen displayed, press and release the
45 Display Mode EAGLE 2 Operators Manual
AIR YES button. The following screen appears showing Channel 1 alarm points.
CHANNEL 1 CH4 0- 100 %LEL LO ALRM: 10 %LEL HI ALRM: 10 %LEL LO ALRM: 5000 ppm HI ALRM:25000 ppm
2. If the channel description is too long to fit across the screen, press and release the POWER ENTER RESET button to view the remainder of the displayed channels description. Press and release the POWER ENTER RESET button again to return to the previous screen.
CHANNEL 1 CH4 0- 100 %LEL LO ALRM: 10 %LEL HI ALRM: 10 %LEL LO ALRM: 5000 ppm HI ALRM:25000 ppm
CHANNEL 1 METHANE LO ALRM: 10 %LEL HI ALRM: 10 %LE L LO ALRM: 5000 ppm HI ALRM:25000 ppm
3. If the number of alarm settings is too many to display on one screen, a down arrow will appear in the lower right corner of the display indicating that there are additional alarm points. Press and release the RANGE SHIFT button to scroll down and display the remainder of the gas alarm settings for the displayed channel and again to return to the previous screen.
CHANNEL 1 CH4 0- 100 %LEL LO ALRM: 10 %LEL HI ALRM: 10 %LEL LO ALRM: 5000 ppm HI ALRM:25000 ppm
RANGE SHIFT
CHANNEL 1 CH4 0- 100 %LEL LO ALRM: OFF vol% HI ALRM: OFF vol%
Display Mode 46
4. Press and release the AIR YES button to scroll through screens that display the rest of the active channels alarm settings.
CHANNEL 1 CH4 0- 100 %LEL LO ALRM: 10 %LEL HI ALRM: 50 %LEL LO ALRM: 5000 ppm HI ALRM:25000 ppm
AIR YES
AIR YES
CHANNEL 2 OXY 0- 40.0 vol% LO ALRM: 19.5 vol% HI ALRM: 23.5 vol%
AIR YES
CHANNEL 4 CO 0- 500 ppm LO ALRM: 25 ppm HI ALRM: 50 ppm STEL ALRM: 200 ppm TWA ALRM: 25 ppm
AIR YES
CHANNEL 3 H2S 0-100.0 ppm LO ALRM: 10.0 ppm HI ALRM: 30.0 ppm STEL ALRM: 15.0 ppm TWA ALRM: 10.0 ppm
47 Display Mode
user IDs stored in the EAGLE 2, see the Eagle 2 Maintenance Data Loader Program Operators Manual. To select a different user ID: 1. With the Select User ID Screen displayed, press and release the AIR YES button. A screen appears that includes the current user ID which is indicated by the cursor next to it.
Bruce > John Mike ---------------------------------------------The user IDs are displayed in groups of six. The previous group of six is displayed when the cursor is moved up past the top of the LCD. The next group of six is displayed when the cursor is moved down past the bottom of the LCD. The list will not wrap around to the previous screen if the cursor is moved up from the first user ID or to the next screen if the cursor is moved down from the last user ID. Any of the user IDs in the list that have not been changed from the factory setting will be shown as dashes (-). 2. Use the AIR YES and RANGE SHIFT buttons to move the cursor up and down the screen and scroll through the available user IDs to find the desired user ID. 3. When the desired user ID is displayed, place the cursor next to it, press and release the POWER ENTER RESET button. NOTE: To exit the selection screen without saving a change, press and release the DISPLAY ADJUST NO button. You will return to the Select User ID screen without saving the user ID change. 4. The unit will save the selected user ID as the current one and proceed to the Select Station ID Screen.
Display Mode 48
Pump 2 > Pump 3 Valve 5 ---------------------------------------------The station IDs are displayed in groups of six. The previous group of six is displayed when the cursor is moved up past the top of the LCD. The next group of six is displayed when the cursor is moved down past the bottom of the LCD. The list will not wrap around to the previous
49 Display Mode
screen if the cursor is moved up from the first station ID or to the next screen if the cursor is moved down from the last station ID. Any of the station IDs in the list that have not been changed from the factory setting will be shown as dashes (-). 2. Use the AIR YES and RANGE SHIFT buttons to move the cursor up and down the screen and scroll through the available station IDs to find the desired station ID. 3. When the desired station ID is displayed, place the cursor next to it, press and release the POWER ENTER button. NOTE: To exit the selection screen without saving a change, press and release the DISPLAY ADJUST NO button. You will return to the Select Station ID screen without saving the station ID change. 4. The unit will save the selected station ID as the current one and proceed to the Time in Operation Screen.
Display Mode 50
Date/Time Screen
The Date/Time Screen displays the current date and time.
9/26/2009 09:08:35
2. If you do not want to clear the data logger memory at this point or at Step 3 below, press and release the DISPLAY ADJUST NO button. The unit will return to Measuring Mode.
51 Display Mode
3. If you want to clear the data logger memory, press and release the AIR YES button. The following screen appears asking you to reconfirm that you want to clear the data logger memory.
LOG MEMORY ARE YOU SURE YOU WANT TO PERMANENTLY ERASE DATA FROM MEMORY?
4. If you want to clear the data logger memory, press and release the AIR YES button. The unit will display the following screen as it clears the data.
5. The periods below PLEASE WAIT will disappear one at a time from right to left as the data is cleared. When the last period disappears, the unit is finished clearing the data and will display the following screen for a few seconds, then return to Measuring Mode.
CLEARED
Data Logging
NOTE: The EAGLE 2 only logs data while in Normal Mode. If the EAGLE 2 is used in Leak Check Mode or Bar Hole Mode, no downloadable data will be logged while it is in either of these two modes. The EAGLE 2 features the ability to log data to its internal memory and download it to a computer via the infrared communications port on the front of the unit. It logs gas readings during normal operation, alarm data, and calibration data. To utilize the EAGLE 2s downloading capability, you will need the Eagle 2
Data Logging 52
Data Logger Management Program and a computer with an infrared port or a USB port that runs one of the following operating systems: Windows 2000, Windows XP, or Windows Vista. If your computer has an infrared port, then no additional accessories are needed to download data from the EAGLE 2. If your computer does not have an infrared port but does have a USB port, a USB/IrDA adapter cable can be used to download data from the EAGLE 2 using the USB port. The Eagle 2 Data Logger Management Program is available from RKI Instruments, Inc. The adapter cable is also available from RKI Instruments, Inc. or may be purchased from an electronic supply website. The data logging capacity depends on how often the EAGLE 2 stores data, how many channels are active, and how often the EAGLE 2 is turned on and off. The table below illustrates how much data logging time is available for the various interval times. It assumes that the unit is setup with four sensors, is only turned on once, and there are no alarm occurrences. See Updating the Data Log Interval Setting on page 115 for instructions on setting the data logging interval time.
Table 8: Data Logging Capacity, 4-gas EAGLE 2
Interval Time Data Logging Time
239 hours (10 days) 479 hours (20 days) 959 hours (40 days) 1439 hours (60 days) 2879 hours (120 days) 8639 hours (360 days) 14,399 hours (600 days) 28,798 hours (2,000 days)
For a complete description of the Data Logger Management Program and procedures for downloading data to a computer, see the Eagle 2 Data Logger Management Program Operators Manual.
53 Data Logging
Overview 54
3. If the unit prompts you for the password, enter it by using the AIR YES and RANGE SHIFT buttons to select each password number and then pressing and releasing POWER ENTER RESET to enter the number and move on to the next one. 4. The Calibration Mode Screen displays with the cursor next to AUTO CALIBRATION.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
NOTE: The following screens illustrate a four-gas EAGLE 2 for detection of CH4 (%LEL using catalytic sensor), oxygen, H2S, and CO. Your EAGLE 2 may display slightly different screens.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
2. Press and release the POWER ENTER RESET button. The following screen appears.
3. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen. 4. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
5. Press and release the POWER ENTER RESET button to display the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
The gas concentrations displayed in the Calibration Gas Values Screen must match the gas concentrations listed on the 4-gas calibration cylinder. If all concentrations match, go to Step 16. If one or more concentrations do not match, continue with Step 6. If you do not want to continue with the calibration, press and release the DISPLAY ADJUST NO button to return to the Calibration Mode Screen. NOTE: The RKI 4-gas cylinder typically contains 12% O2 by volume. When using the auto calibration method, be sure to set the OXY auto calibration value to agree with the concentration listed on the cylinders label, not zero.
6. To adjust the values on the screen, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both. The following screen appears with the cursor next to CH4.
ADJUST AUTO CALIBRATION VALUES > CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm
7. Place the cursor next to the channel whose gas value you want to change using the AIR YES and RANGE SHIFT buttons. 8. Press and release the POWER ENTER RESET button to select the channel. The calibration gas value begins to flash. 9. Use the AIR YES and RANGE SHIFT buttons to adjust the calibration gas setting to the desired value. 10. Press and release the POWER ENTER RESET button to save the change. The calibration gas value stops flashing. 11. Repeat Step 7 through Step 10 for any other channels that need to be changed. 12. When you are done adjusting the calibration gas values, move the cursor down past the bottom of the screen next to END.
13. Press and release the POWER ENTER RESET button. The following screen appears.
DO YOU WANT TO STORE NEW VALUE(S) IN MEMORY FOR FUTURE CALIBRATIONS? PRESS YES OR NO
14. If you select YES by pressing and releasing the AIR YES button, the changes that you made will be saved in the EAGLE 2s memory as the
new auto calibration gas values. If you select NO by pressing and releasing the DISPLAY ADJUST NO button, the changes you made will be used for any calibrations performed during the current operating session only. The EAGLE 2 will delete the changes when the unit is turned off and will load the previous set of auto calibration values when it is turned on again. 15. When you make your selection and press the desired button, the unit returns to the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
16. Press and release the POWER ENTER RESET button to proceed to the Calibration In Process Screen with CAL IN PROCESS flashing.
CAL IN PROCESS CH4 0 %LEL OXY 20.9 vol% H2S 0.0 ppm CO 0 ppm ENTER WHEN DONE
If you do not want to proceed with the calibration, press and release the DISPLAY ADJUST NO button to return to the Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 17. Connect the tubing from the demand flow regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 18. Press and release the POWER ENTER RESET button to set the span adjustment for each channel to the programmed values.
19. If all channels passed calibration, the following screen sequence occurs.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
If any of the sensors cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and lists the sensor(s) that failed to calibrate. In the example below, the oxygen and H2S channels failed calibration. The other sensors calibrated normally.
FAIL SENSOR < > <OXY> <H2S> < > ENTER TO CONTINUE
The buzzer and alarm LED arrays activate in a double pulsing pattern. Press and release the POWER ENTER RESET button to reset the alarm and return to the Calibration Mode Screen. Attempt to calibrate again. If the failure continues, investigate the cause. See Troubleshooting on page 67 20. Disconnect the tubing from the probe. 21. Unscrew the demand flow regulator from the calibration cylinder. 22. Use the RANGE SHIFT button to place the cursor next to the NORMAL OPERATION menu option, then press and release the POWER ENTER RESET button to return to Measuring Mode.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
2. Press and release the POWER ENTER RESET button. The following screen appears.
3. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen.
4. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
CALIBRATION MODE AUTO CALIBRATION > SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
63 Calibrating Using the Single Calibration Method EAGLE 2 Operators Manual
5. Press and release the POWER ENTER RESET button. The Select Sensor Screen appears with the cursor flashing.
SINGLE CALIBRATION CH4 50 %LEL UP/DOWN TO ADJUST CALIBRATION VALUE ENTER WHEN DONE
8. If necessary, adjust the calibration gas value to match the cylinder concentration with the AIR YES and RANGE SHIFT buttons.
9. Press and release the POWER ENTER RESET button to proceed to the Single Calibration Apply Gas Screen. CAL IN PROCESS is flashing.
SINGLE CALIBRATION APPLY GAS CH4 0 %LEL CAL IN PROCESS ENTER WHEN DONE
10. Connect the tubing from the demand flow regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 11. Press and release the POWER ENTER RESET button to perform the calibration. 12. When the span adjustment is made, the EAGLE 2 calculates the range of adjustment, minimum and maximum, it could have made based on its response level to the applied gas. This calculated range is independent of the calibration gas value that was entered in Step 8 and Step 9 above. The adjustment range is included on the result screen to indicate the condition of the sensor. If the calibration gas value is in the adjustment range, the span adjustment will pass. If the calibration gas value is out of the adjustment range, the span adjustment will fail. 13. If the span adjustment is successful, the following screens display.
In the example above, the EAGLE 2 could have adjusted the reading as low as 35 %LEL and as high as 98 %LEL. If the span adjustment is not successful, a screen displays that indicates a calibration failure.
low as 11 %LEL and as high as 43 %LEL. Since the calibration gas value entered was 50 %LEL, the unit failed the span adjustment. The buzzer and alarm LED arrays activate in a double pulsing pattern. Press and release the POWER ENTER RESET button to reset the alarm and return to the Select Sensor Screen. Attempt to calibrate again. If the failure continues, investigate the cause. See Troubleshooting on page 67 NOTE: The adjustment range will only appear in the calibration results screen if the Span Factor item in Setup Mode is set to ON. If the Span Factor is set to OFF, the adjustment range will not appear. 14. Disconnect the tubing from the EAGLE 2s probe. 15. Repeat Step 6 through Step 14 for any other channels you want to calibrate. Make sure you use an appropriate calibration cylinder for each sensor. CAUTION: When calibrating the oxygen sensor, verify the concentration of oxygen listed on the cylinders label. For oxygen-free samples (100% nitrogen for example), set the oxygen calibration value to 0.0%. 16. After the last channel is calibrated, disconnect the calibration tubing from the probe, then unscrew the demand flow regulator from the calibration cylinder. 17. With the Select Sensor Screen displayed, place the cursor next to ESCAPE using the AIR YES button.
Troubleshooting
The troubleshooting table describes error messages, symptoms, probable causes, and recommended action for problems you may encounter with the EAGLE 2.
Table 9: Troubleshooting the EAGLE 2 Symptoms
The LCD is blank.
Probable Causes
The unit may have been turned off. The alkaline batteries may need to be replaced or the Ni-MH batteries recharged.
Recommended Action
1. To turn on the unit, press and briefly hold the POWER ENTER RESET button. 2. If the unit does not turn on, replace the alkaline batteries or recharge the Ni-MH batteries. 3. If the difficulties continue, contact RKI Instruments, Inc. for further instruction. 1. Recalibrate the unit. 2. If the difficulties continue, replace the sensor for the affected channel(s) and calibrate the affected channel(s). 3. If the difficulties continue, contact RKI Instruments, Inc. for further instruction.
The LCD shows abnormally high or low readings but other gas detection instruments do not.
The EAGLE 2 may need to be recalibrated. The sensor for the affected channel(s) may need replacement.
67 Overview
Probable Causes
The probe tube is clogged. The hydrophobic filter disk in the probe is dirty. The sample hose has a kink or obstruction. The internal hydrophobic filter is dirty. The pump is malfunctioning. The auto calibration values may not match the cylinder gas concentrations (auto calibration only). The charcoal filter is saturated causing an elevated CO reading. The sample gas is not reaching the sensors because of a bad connection. The calibration cylinder may be out of gas or is outdated. The sensor for the affected channel(s) may need replacement. A memory error has occurred.
Recommended Action
1. Inspect the probe tube for any obstructions. 2. Inspect the hydrophobic filter disk in the probe and replace if necessary. 3. Inspect the sample hose for kinks or obstructions and replace if necessary. 4. Inspect the internal hydrophobic filter and replace if necessary. 5. If difficulties continue, contact RKI Instruments, Inc. for further instruction. 1. Check all calibration tubing for leaks or for any bad connections. 2. Make sure the EAGLE 2 has been properly set up for calibration. 3. Change the charcoal filter. 4. Verify that the calibration cylinder contains an adequate supply of fresh test sample. 5. If the fail condition continues, replace the sensor(s). 6. If the difficulties continue, contact RKI Instruments, Inc. for further instruction.
1. Press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both. The Enter Password Screen will appear. 2. Enter the password, 1994, to proceed to the Set Default Screen. 3. Press and release the AIR YES button twice to restore the defaults. See Restoring the Default Settings on page 122 for a description of issues to consider when restoring the defaults. 4. If difficulties continue, contact RKI Instruments, Inc. for further instruction.
Troubleshooting 68
3. Pull the battery case away from the bottom case. The thumbscrew is captive and will not fall out. 4. Carefully remove the old batteries. Verify that the battery compartment and electrical contacts are clean. 5. Carefully install the new C-size batteries. Follow the battery diagram inside the battery case. Make sure the batteries are pushed in all the way.
6. Reinstall the battery case onto the bottom case tightening the thumbscrew firmly by hand so that there is no visible gap between the battery case and the bottom case.
6. While the batteries are charging, the green indicator LED will be off and the amber one will be on. 7. The charging module has an internal timeout feature set at 4.5 hours. A full charge should be reached in less than 4.5 hours. When a full charge has been reached, both the green and yellow LEDs will be on. 8. If charging should fail, the green indicator LED will be off and the amber one will be blinking. Table 10 summarizes the battery charger conditions.
Table 10: Battery Charger Conditions
Amber LED Green LED Status
ON ON BLINKING OFF
OFF ON OFF ON
Probe Body
EAGLE 2 Operators Manual Replacing the Hydrophobic Probes Filter Disk & O-ring 72
2. Remove the O-ring if it sticks in either half of the probe body. 3. Remove the white hydrophobic filter disk from the support screen. 4. Clean the inside of the probe body if necessary. 5. Hold the probe half that has the support screen with the screen facing up. 6. Place the new filter disk flat on the support screen. Make sure it is centered over the screen. 7. Place the O-ring (or replacement O-ring) on the filter disk. Make sure the O-ring is centered over the disk. 8. Carefully screw the other half of the probe body onto the half with the disk and O-ring while keeping the probe oriented vertically to keep the disk and O-ring centered. 9. When you feel the O-ring being compressed, grasp both ends of the probe and tighten them together very firmly to ensure a seal. 10. To test the seal, do the following. install the probe on the EAGLE 2 startup the EAGLE 2 confirm that a low flow alarm occurs when you cover the end of the probe tube with your finger if a low flow alarm does not occur, hand tighten the probe further if a low flow alarm still does not occur when you cover the probe tube with your finger, disassemble the probe, inspect the placement of the O-ring and filter disk, reassemble the probe and re-test it.
5. Lay the top case down next to the bottom case to allow access to the flow system. 6. Locate the hydrophobic filter. It is over the oxygen sensor. Note which side of the hydrophobic filter has the RKI logo and part number. This is the inlet side and should be facing toward the front of the EAGLE 2.
RKI Logo & Part Number on This Side Hydrophobic Filter Grey Connecting Tube, 2X
7. Pull the grey connecting tubes off of each end of the filter and remove it. 8. Install the new filter with the red RKI logo and part number on the inlet side of the flow chamber, facing the front of the EAGLE 2. Make sure to push the grey connection tubes all the way onto the filters hose barbs. 9. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, then it may be damaged when the top case is re-installed. 10. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 11. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case.
7. Grasp the black charcoal filter endcap and pull it off of the charcoal filter. 8. Grasp the top of the charcoal filter firmly and pull it out of the flow chamber.
Insert the replacement charcoal filter into the filter position in the flow chamber and push it in until it bottoms out. 9. Insert the charcoal filter endcap into the end of the charcoal filter and push it in until it bottoms out. 10. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, then it may be damaged when the top case is re-installed. 11. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 12. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case.
Replacing a Sensor
1. Verify that the EAGLE 2 is off. 2. Place the EAGLE 2 upside down on a flat surface or hold it upside down. 3. Unscrew the three case screws until they disengage from the top case. They are captive screws so they will not fall off of the bottom case. 4. Turn the EAGLE 2 right side up and carefully lift the top case away from the bottom case. Be careful not to lift it so far that it pulls on the main
PCB with the cable that connects the top case to the main PCB. 5. Lay the top case down next to the bottom case to allow access to the flow system. 6. Locate the sensor you want to replace and remove it from the flow chamber.
H2S Sensor LEL Sensor Cable LEL Sensor Bracket CO Sensor Oxygen Sensor Bracket Oxygen Sensor Main PCB LEL Sensor
Flow Block
7. To remove the LEL sensor, do the following: Unscrew and remove the two screws that hold down the LEL sensor bracket. Grasp the LEL sensor connector and gently pull it up until it either disengages from the LEL sensor or the LEL sensor comes out of the flow chamber with the connector. If the sensor came out with the connector, remove the sensor from the
77 Replacing a Sensor
connector. If the sensor stayed in the flow chamber, grasp the sensor and pull it out of the flow chamber. Unscrew the two screws that hold the oxygen sensor bracket a few turns so that you can rotate and remove the oxygen sensor bracket. Make sure to note the routing of the oxygen sensor cable to the main PCB so that you can route the replacement sensor cable the same way. Also make sure that the O-ring in the bottom of the flow chamber does not come out with the sensor. Move the hydrophobic filter towards the bottom case side wall and pull the oxygen sensor out of the flow chamber. Hold the main PCB to support it where the oxygen sensor cable connects to it. Grasp the connector on the end of the sensor cable and pull the connector away from the main PCB to disconnect it from the main PCB.
9. To remove the H2S and CO sensors, do the following: Grasp the sensor firmly and rock it back and forth slightly while pulling on it. Make sure to note the routing of the sensor cable to the main PCB so that you can route the replacement sensor cable the same way. If the sensor does not come out of the flow chamber easily enough using this method, grasp it with a pair of pliers and rock it back and forth slightly while pulling on it.
CAUTION: If using pliers to remove a sensor, be careful not to damage the sensor in case you find that the sensor is still functional and does not need to be replaced. Hold the main PCB to support it where the sensor cable connects to it. Grasp the connector on the end of the sensor cable and pull the connector away from the main PCB to disconnect it from the main PCB.
10. Install the new sensor. 11. To install the LEL sensor, do the following: Plug the replacement sensor into the sensor connector on the LEL
Replacing a Sensor 78
sensor cable. Insert the LEL sensor into the LEL sensor chamber in the flow chamber. Line up the holes in the LEL sensor bracket with the two standoffs on either side of the LEL sensor chamber. Install the two sensor bracket screws tightening them a little at a time alternately to push the sensor into its chamber evenly. Confirm that the sealing O-ring is still in the bottom of the oxygen sensor chamber in the flow chamber and insert the oxygen sensor face down into the chamber. Route the sensor cable the same way the old sensor cable was routed and connect it to the main PCB. Make sure to support the main PCB when making the connection. Reinstall the oxygen sensor bracket and tighten both bracket screws firmly.
13. To install the H2S and CO sensors, do the following: Insert the sensor face down into the sensor chamber in the flow chamber. Push the sensor in until it bottoms out. Route the sensor cable the same way the old sensor cable was routed and connect it to the main PCB. Make sure to support the main PCB when making the connection.
14. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, then it may be damaged when the top case is re-installed. 15. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 16. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 17. Calibrate the new sensors as described in Chapter 4: Calibration Mode on page 54.
79 Replacing a Sensor
06-1248RK-03 07-6020RK 13-1061RK 13-1081RK 30-0600RK-01 33-0156RK-01 33-0173RK 33-6090RK 35-0110RK 35-0111RK 35-0112RK 47-1016RK 47-5010RK 47-5027RK 49-0115RK 49-1130RK 49-1330RK 49-2174RK 49-2175RK 49-2176RK 49-2177RK 65-0601RK 65-2005RK 65-2035RK 71-0154RK
Calibration kit tubing,3 foot length O-ring for probe Panel screw, captive, 6-32 x 1/2 inch, for bottom case Thumbscrew, captive, 10-32 x 2 inches, for battery case Pump Filter element, hydrophobic disk, for standard 80-0131RK probe, pack of 5 Internal hydrophobic filter Charcoal filter Dummy sensor, CO or H2S sensor position Dummy sensor, oxygen sensor position Dummy sensor, LEL sensor position Vehicle plug 12 VDC adapter cable for charger TC/LEL sensor cable Downloading cable, USB/IrDA adapter AC adapter C size alkaline battery C size Ni-MH battery Charging module 115/220 VAC charger 12 VDC charger 115/220 VAC and 12 VDC charger Oxygen sensor Carbon monoxide (CO) sensor Hydrogen Sulfide (H2S) sensor Operators Manual, EAGLE 2 (this document)
71-0170RK 71-8003RK 80-0131RK 80-0133RK 80-0134RK 80-0135RK 80-0136RK 80-0137RK 80-0143RK 80-0156RK 80-0160RK-12 80-0160RK-18 80-0405RK 80-0406RK 80-05XXRK
Operators Manual, Eagle 2 Data Logger Management Program EAGLE 2 Product CD, includes Data Management Program, User Setup Program, and all operators manuals 10 inch hydrophobic probe (standard probe) 30 inch aluminum probe 4 foot stainless steel hydrophobic probe 30 inch stainless steel hydrophobic probe 32 inch telescoping fiberglass probe w/dust filter 10 inch probe w/dust filter 7 foot telescoping fiberglass probe w/dust filter 30 inch fiberglass hydrophobic probe 12 foot extendible probe 18 foot extendible probe Dilution fitting, 1:1 Dilution fitting, 3:1 Sample hose. Replace XX with length in feet. 5 foot hose is standard. Available lengths for the EAGLE 2 are 3, 4, 5, 6, 10, 15, 20, 25, 30, 35, 40, 50, 75, 100, and 125 feet. Calibration cylinder, steel, 34 liter, three-gas (CH4/O2/CO) Calibration cylinder, steel, 103 liter, three-gas (CH4/O2/CO) Calibration cylinder, aluminum, 58 liter; four-gas (CH4/O2/ H2S/CO) Calibration cylinder, aluminum, 34 liter; four-gas (CH4/O2/ H2S/CO) Regulator, demand-flow type (for 58- and 103-liter aluminum or steel, and 34-liter aluminum calibration cylinders) Calibration kit, for LEL/Oxy/CO unit, w/demand flow regulator, 103 liter cylinder Calibration kit, for LEL/Oxy/H2S/CO unit, w/demand flow regulator, 58 liter cylinder LEL combustible sensor, catalytic
Calibration Cylinder
Hose Clamp
Overview 82
To calibrate the EAGLE 2, you will need: Known calibrating samples of the gases being detected. The combustible and toxic gas samples should have concentrations in approximately the middle of the range of detection. An oxygen-free source, such as 100% nitrogen is recommended for setting the oxygen zero when using single calibration. CAUTION: When using auto calibration with the standard 4-gas EAGLE 2, although the EAGLE 2 can be calibrated with an oxygen concentration of up to 19.5%, RKI Instruments, Inc. recommends that the multi-gas cylinder have an oxygen concentration in the range of 10% - 16% oxygen. A gas collection bag with hose clamp A 6 LPM fixed-flow regulator or a dispensing valve Calibration tubing To calibrate the combustible gas, oxygen, CO, and H2S sensors at the same time, automatically, with no need for a zero-oxygen source, you can use the auto calibration feature with a 4-gas cylinder. If the H2S channel is not active, then a 3-gas cylinder may be used for auto calibration. This document includes instructions for auto calibration with a fixed flow regulator or dispensing valve, a sample bag, and a 4-gas cylinder. This document also includes instructions for calibrating one channel at a time using single calibration.
4. The Calibration Mode Screen displays with the cursor next to AUTO CALIBRATION.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
NOTE: The following screens illustrate a 4-gas EAGLE 2 for detection of CH4 (%LEL using catalytic sensor), oxygen, H2S, and CO. Your EAGLE 2 may display slightly different screens.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
2. Press and release the POWER ENTER RESET button. The following screen appears.
3. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen. 4. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
3. Move the cursor next to the AUTO CALIBRATION menu item by using the AIR YES button.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
4. Press and release the POWER ENTER RESET button to display the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
The gas concentrations displayed in the Calibration Gas Values Screen must match the gas concentrations listed on the 4-gas calibration cylinder. If all concentrations match, go to Step 15. If one or more concentrations do not match, continue with Step 5. If you do not want to continue with the calibration, press and release the DISPLAY ADJUST NO button to return to the Calibration Mode Screen. NOTE: The RKI 4-gas cylinder typically contains 12% O2 by volume. When using the auto calibration method, be sure to set the OXY auto calibration gas value to agree with the concentration listed on the cylinders label, not zero. 5. To adjust the values on the screen, hold down the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both. The following screen appears with the cursor next to CH4.
ADJUST AUTO CALIBRATION VALUES > CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm
6. Place the cursor next to the channel whose gas value you want to change using the AIR YES and RANGE SHIFT buttons. 7. Press and release the POWER ENTER RESET button to select the
EAGLE 2 Operators Manual Calibrating Using the Auto Calibration Method 86
channel. The calibration gas value begins to flash. 8. Use the AIR YES and RANGE SHIFT buttons to adjust the calibration gas setting to the desired value. 9. Press and release the POWER ENTER RESET button to save the change. The calibration gas value stops flashing. 10. Repeat Step 6 through Step 9 for any other channels that need to be changed. 11. When you are done adjusting the calibration gas values, move the cursor down past the bottom of the screen next to END.
12. Press and release the POWER ENTER RESET button. The following screen appears.
DO YOU WANT TO STORE NEW VALUE(S) IN MEMORY FOR FUTURE CALIBRATIONS? PRESS YES OR NO
13. If you select YES by pressing and releasing the AIR YES button, the changes that you made will be saved in the EAGLE 2s memory as the new auto calibration gas values. If you select NO by pressing and releasing the DISPLAY ADJUST NO button, the changes you made will be used for any calibrations performed during the current operating session only. The EAGLE 2 will delete the changes when the unit is turned off and will load the previous set of auto calibration values when it is turned on again.
14. When you make your selection and press the desired button, the unit returns to the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
15. Press and release the POWER ENTER RESET button to proceed to the Calibration In Process Screen. CAL IN PROCESS is flashing.
CAL IN PROCESS CH4 0 %LEL OXY 20.9 vol% H2S 0.0 ppm CO 0 ppm ENTER WHEN DONE
If you do not want to proceed with the calibration, press and release the DISPLAY ADJUST NO button to return to the Calibration Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 16. Connect the gas bag tubing to the regulators or dispensing valves hose barb fitting. 17. Fill the gas collection bag by screwing the fixed flow regulator or dispensing valve onto the calibration cylinder and turning the knob counterclockwise. 18. Allow the gas to dispense until the gas collection bag is a little over half full. 19. Turn the knob clockwise to stop the gas flow, clamp down the hose clamp and remove the regulator or dispensing valve from the cylinder. 20. Disconnect the tubing from the regulator or dispensing valve. 21. Open the hose clamp on the gas bag tubing. 22. Connect the tubing from the gas bag to the rigid tube on the probe. Allow the gas to flow for one minute. 23. Press and release the POWER ENTER RESET button to set the span adjustment to the programmed values.
24. If all channels passed calibration the following screen sequence occurs.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
If any of the sensors cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and lists the sensor(s) that failed to calibrate. In the example below, the oxygen and H2S channels failed calibration. The other sensors calibrated normally.
FAIL SENSOR < > <OXY> <H2S> < > ENTER TO CONTINUE
The buzzer and LED arrays activate in a double pulsing pattern. Press and release the POWER ENTER RESET button to reset the alarm and return to the Calibration Mode Screen. Attempt to calibrate again. If the failure continues, investigate the cause. See Troubleshooting on page 67 25. Disconnect the tubing from the probe. 26. Use the RANGE SHIFT button to place the cursor next to the NORMAL OPERATION menu option, then press and release the POWER ENTER RESET button to return to Measuring Mode.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
2. Press and release the POWER ENTER RESET button. The following screen appears.
3. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen.
4. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
4. Move the cursor next to the SINGLE CALIBRATION menu item by using the AIR YES button.
CALIBRATION MODE AUTO CALIBRATION > SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
5. Press and release the POWER ENTER RESET button. The Select Sensor Screen appears with the cursor flashing.
7. Press and release the POWER ENTER RESET button to proceed to the Single Calibration Gas Value Screen for the selected channel. The calibration gas value is flashing.
SINGLE CALIBRATION CH4 50 %LEL UP/DOWN TO ADJUST CALIBRATION VALUE ENTER WHEN DONE
8. If necessary, adjust the calibration gas value to match the cylinder concentration using the AIR YES and RANGE SHIFT buttons. For this example, the calibration gas value is entered as 50 %LEL. 9. Press and release the POWER ENTER RESET button to proceed to the Single Calibration Apply Gas Screen. CAL IN PROCESS is flashing.
SINGLE CALIBRATION APPLY GAS CH4 0 %LEL CAL IN PROCESS ENTER WHEN DONE
10. Fill the gas collection bag by screwing the fixed flow regulator or dispensing valve onto the calibration cylinder and turning the knob counterclockwise. 11. Allow the gas to dispense until the gas collection bag is a little over half full. 12. Turn the knob clockwise to stop the gas flow, clamp down the hose clamp and remove the regulator or dispensing valve from the cylinder. 13. Disconnect the tubing from the regulator or dispensing valve. 14. Open the hose clamp on the gas bag tubing. 15. Connect the tubing from the gas bag to the rigid tube on the probe. Allow the gas to flow for one minute. 16. Press and release the POWER ENTER RESET button to make the span adjustment. 17. When the span adjustment is made, the EAGLE 2 calculates the range of adjustment, minimum and maximum, it could have made based on its response level to the applied gas. This calculated range is independent of the calibration gas value that was entered in Step 8 and Step 9 above. The
adjustment range is included on the result screen to indicate the condition of the sensor. If the calibration gas value is in the adjustment range, the span adjustment will pass. If the calibration gas value is out of the adjustment range, the span adjustment will fail. 18. If the span adjustment is successful, the following screens display.
In the example above, the EAGLE 2 could have adjusted the reading as low as 35 %LEL and as high as 98 %LEL. If the span adjustment is not successful, a screen displays that indicates a calibration failure.
CAUTION: When calibrating the oxygen channel, verify the concentration of oxygen listed on the cylinders label. For oxygen-free samples (100% nitrogen for example), set the oxygen zero setting to 0.0%. 21. After the last channel is calibrated, disconnect the calibration tubing from the probe. 22. With the Select Sensor Screen displayed, place the cursor next to ESCAPE using the AIR YES button.
Parts List
Table 12: Sample Bag Calibration Kit Spare Parts
Part Number Description
Calibration kit tubing,3 foot length Calibration cylinder, 3-gas mix, LEL/Oxygen/CO, 34 liter steel Calibration cylinder, 4-gas mix, LEL/Oxygen/CO/H2S, 34 liter aluminum Dispensing valve, for 17/34 liter steel cylinders Regulator with gauge and knob, 34 liter aluminum/58 liter/103 liter cylinders, 6 LPM Gas bag with clamp and hose barb, 9 x 9, 2 liter Calibration kit, for LEL/Oxy/CO unit, w/gas bag, 34 Liter Calibration kit, for LEL/Oxy/H2S/CO unit, w/gas bag, 34 Liter
95 Parts List
Overview 96
turn the confirmation alert feature on or off turn the password feature on or off and set the password reset the instrument parameters to their default settings turn the lunch break function on or off turn the span factor on or off select the language return to normal operation The EAGLE 2 is factory-set to suit most applications. Update settings in Setup Mode only if required for your specific application. The description of each item below indicates the factory setting for each item.
>SET DATE & TIME SET DATE FORMAT SET BATTERY TYPE CONFIGURE CHANNELS CONFIGURE GASES CATALYTIC UNITS
Use the POWER ENTER RESET button to enter a selected menu item with the cursor next to it and to enter and save settings during programming. An adjustable parameter that is flashing can be adjusted with the AIR YES and RANGE SHIFT buttons.
97 Tips for Using Setup Mode EAGLE 2 Operators Manual
Press the DISPLAY ADJUST NO button while in a screen where you are entering or updating parameters to exit the screen without saving any changes.
GAS MONITOR
EAGLE 2
4. The S will then disappear and the following screen will appear for a few seconds.
GAS MONITOR
EAGLE 2
5. If the unit prompts you for the password, enter it by using the AIR YES and RANGE SHIFT buttons to select each password number and then pressing and releasing the POWER ENTER RESET button to enter it and move on to the next number until all of the numbers are entered. The main menu displays. It displays six menu items at a time.
>SET DATE & TIME SET DATE FORMAT SET BATTERY TYPE CONFIGURE CHANNELS CONFIGURE GASES CATALYTIC UNITS
6. Use the AIR YES or RANGE SHIFT button to move the cursor up and down the menu items and to view additional menu items. A down arrow in the lower right corner of the LCD or an up arrow in the upper right corner of the LCD indicates that there are additional menu items accessible by moving the cursor down past the last menu item on the LCD or up past the first menu item on the LCD.
2. Press and release POWER ENTER RESET. The Set Date Format screen appears with the current setting flashing.
configuration. CAUTION: Before changing the channel configuration, confirm that the correct sensors and electronic hardware are installed in the EAGLE 2 and that its construction and flow system are appropriate for the installed sensors. Operation of the EAGLE 2 with a flow system or construction not compatible with the installed sensors will result in inaccurate readings. Consult RKI Instruments, Inc. if you cannot confirm either of these items. 1. From the main menu, place the cursor next to CONFIGURE CHANNELS. 2. Press and release POWER ENTER RESET. The Configure Channels screen appears with the cursor flashing next to CH1.
CONFIGURE CHANNELS > CH1: CAT (CH4) CH2: OXY (OXY) CH3: H2S (H2S) CH4: CO (CO)
The standard 4-gas configuration is shown below.
RANGE
CONFIGURE CHANNELS CH1: CH2: CH3: > CH4: CAT (CH4) OXY (OXY) H2S (H2S) CO (CO)
SHIFT
CONFIGURE CHANNELS > CH5: NOT USED CH6: NOT USED END
AIR YES
3. Use AIR YES or RANGE SHIFT to move the cursor next to the channel you want to configure.
4. Press and release POWER ENTER RESET. The available configuration options are shown. In the example below, channel 3 has been selected for configuration.
RANGE
CHANNEL 3 (H2S) > CAT (CH4) OXY (OXY) H2S (H2S) CO (CO)
SHIFT
CHANNEL 3 (H2S) > OP1 (---) OP2 (---) OP3 (---) NOT USED
AIR YES
5. Use AIR YES and RANGE SHIFT to move the cursor next to the desired configuration for the selected channel. In the example below, the cursor has been moved next to the NOT USED selection.
CHANNEL 3 (H2S) OP1 (---) OP2 (---) OP3 (---) > NOT USED
The OP1, OP2, and OP3 options are not defined for a standard 4-gas EAGLE 2. These options are only defined when hardware specific to optional sensors is factory installed in the EAGLE 2. The --- in the gas name field indicates that hardware necessary to support an optional sensor is not installed. If your EAGLE 2 supports one or more of these optional sensors, the target gas will appear instead of ---. See Appendix C: Sub PCBs on page 127 for a description of this optional hardware and how it affects CHANNEL CONFIGURATION. 6. Press and release POWER ENTER RESET to select the channel configuration. In the example below, channel 3 has been turned off by selecting NOT USED.
CONFIGURE CHANNELS CH1: CH2: > CH3: CH4: CAT (CH4) OXY (OXY) NOT USED CO (CO)
7. Repeat Step 5 and Step 6 for any other channels you want to configure.
8. Use RANGE SHIFT to move the cursor next to the END menu item. NOTE: If you want to exit to the main menu without saving any channel configuration changes, press and release DISPLAY ADJUST NO. 9. Press and release POWER ENTER RESET to save the changes and return to the main menu.
CONFIGURE GASES > CAT : OP1 : OP2 : OP3 : CH4 (CAT) --- (---) --- (---) --- (---)
The OP1, OP2, and OP3 options are not defined in a standard 4-gas EAGLE 2. These options are only defined when hardware specific to optional sensors is factory installed in the EAGLE 2. See Appendix C: Sub PCBs on page 127 for a description of this optional hardware and how it affects CONFIGURE GASES. 3. To change the catalytic sensor gas configuration, press and release POWER ENTER RESET. 4. A screen appears with gas configuration choices for the catalytic channel.
CAT(0-50000ppm CH4) > 50000 ppm CH4 11000 ppm HEX 40000 ppm H2 18000 ppm IBU
For each gas, the LEL (lower explosive limit) and gas name is displayed. The LEL is shown in terms of ppm. The available choices are on two screens.
RANGE
CAT(0-50000ppm CH4) 50000 ppm CH4 11000 ppm HEX 40000 ppm H2 > 18000 ppm IBU
SHIFT
CAT(0-50000ppm CH4) > 50000 ppm GAS 10000 ppm CAT * END
AIR YES
All of the gases except for the one with the asterisk (*) next to it are predefined. The gas with the asterisk next to it is user defined. The user defined gas can be used if the desired gas is not one of the pre-defined gases. Below is a brief description of each choice. 50000 ppm CH4 This selection is for methane (CH4) and is the standard factory setting. The LEL for methane is 5 %volume, or 50,000 ppm. If the gas is configured for this choice, the methane elimination feature is inactive and the Methane Elimination Mode Screen will not appear in Display Mode. See Methane Elimination Mode Screen on page 42 for a description of the Methane Elimination Mode Screen. See Appendix J: Methane Elimination Mode for a description of Methane Elimination Mode. 11000 ppm HEX This selection is for hexane. The LEL for hexane is 1.1%, or 11,000 ppm. If the gas is configured for this choice, the methane elimination feature is active and the Methane Elimination Mode Screen is accessible in Display Mode. See Methane Elimination Mode Screen on page 42 for a description of the Methane Elimination Mode Screen. See Appendix J: Methane Elimination Mode for a description of Methane Elimination Mode. 40000 ppm H2 This selection is for hydrogen (H2). The LEL for hydrogen is 4%, or 40,000 ppm. If the gas is configured for this choice, the methane elimination feature is inactive, the Methane Elimination Mode Screen will not appear in Display Mode, and the catalytic sensor voltage is set to 1.1 volts. The standard catalytic sensor voltage is 2.4 volts. Because the detector voltage is set to 1.1 volts, the catalytic sensor
will not respond significantly to methane and many other combustible gases, but will respond to hydrogen. WARNING: Do not configure the catalytic sensor gas to hydrogen if you are monitoring for general hydrocarbons. Only use this selection if you are monitoring exclusively for hydrogen or if you do not want to see a significant response to other combustible gases. 18000 ppm IBU This selection is for isobutane. The LEL for isobutane is 1.8%, or 18,000 ppm. If the gas is configured for this choice, the methane elimination feature is inactive and the Methane Elimination Mode Screen will not appear in Display Mode. See Methane Elimination Mode Screen on page 42 for a description of the Methane Elimination Mode Screen. See Appendix J: Methane Elimination Mode for a description of Methane Elimination Mode. 50000 ppm GAS This selection is for a generic combustible gas with the LEL set to 50000 ppm. If the gas is configured for this choice, the methane elimination feature will be active, but the Methane Elimination Mode Screen will not appear in Display Mode, so methane elimination cannot be turned off. In addition, the relative response feature is inactive even if it is set to ON in the Setup Mode Relative Responses menu item.
CAUTION: The 50000 ppm GAS gas configuration is normally set at the factory for very specific applications. Consult RKI Instruments, Inc. before configuring the gas for 50000 ppm GAS. 10000 ppm CAT * This selection is a user defined selection. The factory setting is 10000 ppm CAT *, with the asterisk (*) indicating that it is user defined. If this selection has been updated in the field, it will appear differently, but the asterisk will always remain next to the menu item to indicate it is user defined. If you choose the user defined selection, the unit will prompt you to enter four parameters: a three character gas name, the LEL value in terms of ppm, the response factor relative to methane, and the detector voltage. When you configure the gas as the user defined choice, the methane elimination feature is active and the Methane Elimination Mode Screen is accessible in Display Mode. See Methane Elimination Mode Screen on page 42 for a description of the Methane Elimination Mode Screen. See Appendix
EAGLE 2 Operators Manual
J: Methane Elimination Mode for a description of Methane Elimination Mode. 5. Use AIR YES and RANGE SHIFT to move the cursor next to the desired gas for the catalytic channel. 6. If you placed the cursor next to one of the pre-defined gases, press and release POWER ENTER RESET to select the gas and proceed to Step 15. If you placed the cursor next to the user defined gas with the asterisk (*), press POWER ENTER RESET and proceed with Step 7. 7. The user defined gas setup screen appears with the first character of the gas name flashing. The current gas name and range are shown on the top line of the screen.
CAT(0-10000ppm CH4) CHANGE TO NAME CAT 10000 - 150000 10000 ppm RATIO 1.00 FACTOR
8. Enter the gas name. Use AIR YES and RANGE SHIFT to display the desired character, then press POWER ENTER RESET to enter the displayed character and move to the next character. Repeat until all three characters are entered. When the last character is entered, the ppm ratio value will be flashing. 9. Use AIR YES and RANGE SHIFT to display the desired ppm value. This value is called the ppm ratio and must be the ppm equivalent of the LEL for the gas being defined. For example, if you are defining propane, the LEL for propane is 21,000 ppm, so you must enter 21000 ppm (2.1% volume). NOTE: If you define a gas whose LEL is above 50,000 ppm, the %LEL reading in Measuring Mode will reflect the defined ppm ratio, but the ppm reading in Measuring Mode will not indicate above 50,000 ppm. For example, if you set the ratio to be 150,000 ppm and set the catalytic combustible channel to display the reading in ppm, the gas reading will not indicate higher than 50,000 ppm, the equivalent of 33 %LEL and 5% volume for this ratio, but will continue to indicate %LEL readings up to 100 %LEL and %volume readings up to 15 %volume, the equivalent of 150,000 ppm, if the display units are changed to %LEL or %volume. In addition, all adjustable ppm parameters cannot be set higher than 50,000 ppm.
10. Press and release POWER ENTER RESET to enter the ppm ratio. The FACTOR for the gas begins to flash. The FACTOR for the gas is the response factor for the user defined gas relative to methane. The response factor must be obtained by testing the user defined gas and comparing its response to methane. This parameter is used by the relative response feature. See Catalytic Sensor Relative Response Screen on page 42 for a description of the relative response feature and how to use it. See Combustible Gas Detection on page 30 for a list of response factors for several common hydrocarbon gases that have already been tested. 11. Use AIR YES and RANGE SHIFT to increase or decrease the response factor to the desired number. 12. Press and release POWER ENTER RESET to enter the response factor. The sensor voltage setting screen appears with the sensor voltage flashing. The current gas and range is shown at the top of the screen and the current sensor voltage is shown at the bottom of the screen.
14. Press and release POWER ENTER RESET. The confirmation screen appears. In the example below, the user defined gas has been selected and defined as propane with the gas name set to PRO.
CONFIGURE GASES > CAT : PRO (CAT) OP1 : --- (---) OP2 : --- (---) OP3 : --- (---)
If you do not want to accept the gas configuration change, press and release DISPLAY ADJUST NO to return to the screen with the gas choices shown in Step 4 on page 103. You can either scroll down to END and press POWER ENTER RESET to return to the Configure Gases screen or continue from Step 4 on page 103 to select a new gas. 16. Use RANGE SHIFT to place the cursor next to END and press POWER ENTER RESET to return to the main menu.
3. Use AIR YES or RANGE SHIFT to scroll through the choices, CHANGE OK, vol% ONLY, %LEL ONLY, and ppm ONLY. 4. When the desired setting is on the screen, press and release POWER ENTER RESET to save the setting and return to the main menu.
2. Press and release POWER ENTER RESET. The Change Alarm Point Settings Screen appears and all detection channels are displayed.
CH4 0- 100 %LEL >LO ALRM : 10 %LEL HI ALRM : 50 %LEL LO ALRM: 5000 ppm HI ALRM : 25000 ppm
4. Move the cursor next to the alarm point or alarm operation (oxygen only) that you want to update. If you selected the oxygen channel, you can set the alarm rising/falling operation in addition to the alarm points.
OXY 0- 40.0 vol% >FALLING AND RISING LO ALRM : 19.5 vol% HI ALRM : 23.5 vol% END
5. Press and release POWER ENTER RESET. The alarm point or alarm operation (oxygen only) will begin to flash. 6. Use AIR YES and RANGE SHIFT to adjust the alarm point or alarm operation (oxygen only) to the desired setting. Keep the following in mind: The low alarm cannot be set higher than the high alarm and the high alarm cannot be set lower than the low alarm. Any alarm setting can be turned off by adjusting it to its lowest setting. The setting will be displayed as OFF.
In addition to setting the oxygen alarm points, you can also select one of the following operation modes: low alarm decreasing and high alarm increasing (FALLING AND RISING); low and high alarm decreasing (BOTH FALLING); low and high alarm increasing (BOTH RISING). The factory setting is FALLING AND RISING.
7. If you want to continue with the change, press and release POWER ENTER RESET to accept the setting. If you want to exit this screen without saving any change to the alarms, press and release DISPLAY ADJUST NO until you return to the Change Alarm Point Settings Screen. 8. Repeat Step 4- Step 7 for any additional changes you want to make. 9. When you are done making changes, use RANGE SHIFT to move the cursor next to END. 10. Press and release POWER ENTER RESET to save the new settings and return to the Change Alarm Point Settings Screen. 11. Use RANGE SHIFT to move the cursor next to END. 12. Press and release POWER ENTER RESET to return to the main menu.
Screen appears.
ADJUST AUTO CALIBRATION VALUES > CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm
3. Use AIR YES or RANGE SHIFT to place the cursor next to the auto calibration value you want to change. 4. Press and release POWER ENTER RESET. The auto calibration value begins to flash indicating it can be adjusted.
113 Using Setup Mode EAGLE 2 Operators Manual
5. Use AIR YES and RANGE SHIFT to adjust the auto calibration value to the desired value. 6. Press and release the POWER ENTER RESET button to accept the value. 7. Repeat Step 3 - Step 6 for each auto calibration value you want to change. If you want to return to the main menu at any time without saving any changes, press and release the DISPLAY ADJUST NO button until you return to the main menu. 8. Use RANGE SHIFT to move the cursor next to the END menu item. Press and release the POWER ENTER RESET button to save the changes and return to the main menu.
WARNING: If the automatic fresh air feature is turned on, you must startup the EAGLE 2 in a known fresh air environment, an environment free of toxic or combustible gases and of normal oxygen content (20.9%). If this feature is on and the EAGLE 2 is started up in the presence of a target gas, the readings and alarms will not be accurate or reliable. 1. From the main menu, place the cursor next to AUTO FRESH AIR ADJ. 2. Press and release POWER ENTER RESET. The Fresh Air Adjust Screen appears.
4. Press and release POWER ENTER RESET to save the setting and return to the main menu.
2. Press and release POWER ENTER RESET. The Set Calibration Interval Screen appears.
2. Press and release POWER ENTER RESET. The Leak Check/Bar Hole Mode Screen appears.
2. Press and release POWER ENTER RESET. The Password Protection Screen appears.
SET PASSWORD
0000
6. Use AIR YES or RANGE SHIFT to display a number from 0 to 9. 7. Press and release POWER ENTER RESET to enter the selection and advance to the next number. 8. Repeat Step 6 and Step 7 to select the remaining numbers. When you press and release POWER ENTER RESET to enter the last number, the password is saved and you return to the main menu.
The standard default gas configuration is LEL/oxygen/H2S/CO. If you have turned any channels off or have added channels to your EAGLE 2, you will have to re-setup your EAGLE 2 to the desired gas combination if you restore the EAGLE 2 to its default configuration. There are some special EAGLE 2 configurations that may have a different default configuration than the standard. Consult RKI Instruments, Inc. for information regarding non-standard default configurations. WARNING: When the EAGLE 2 is restored to its default configuration, the zero and span values for each channel are reset. You must recalibrate all active channels if you restore the EAGLE 2 to its default configuration. 1. From the main menu, place the cursor in front of DEFAULT SETTINGS. 2. Press and release POWER ENTER RESET. The Restore Default Configuration? Screen appears asking if you want to restore the default configuration.
3. If you do not want to restore the default configuration, press and release DISPLAY ADJUST NO to return to the main menu. If you do want to restore the default configuration, continue with Step 4. 4. Press and release AIR YES. A screen appears asking you to confirm that you want to restore the default configuration.
5. Press and release AIR YES. The screen will indicate that the default configuration has been restored and return to the main menu.
3. Use AIR YES or RANGE SHIFT to display the desired setting. 4. Press and release POWER ENTER RESET to save the setting and return to the main menu.
3. A screen appears that asks if you want to save the changes you have made.
NOTE: If you entered Setup Mode and did not make any changes, the above screen will still appear. In this case, press and release DISPLAY ADJUST NO to proceed to exit Setup Mode and begin the EAGLE 2s startup sequence. 4. If you do not want to save the changes, press and release DISPLAY ADJUST NO. The unit will begin its startup sequence without saving the changes. If you do want to save the changes, press and release AIR YES and continue with the next step. 5. A confirmation screen appears asking if you are sure you want to save the changes.
6. If you want to save the changes, press and release AIR YES to save the changes. A screen will appear for a few seconds indicating that the changes have been saved and the unit will begin its start-up sequence. If you do not want to save the changes, press and release DISPLAY ADJUST NO to proceed to the units start-up sequence without saving changes.
Description
The main PCB can accept up to three sub PCBs. The sub PCBs are installed below a row of connectors near the top of the main PCB. The three positions are labeled on the main PCB silkscreen from right to left as SUB1, SUB2, and SUB3. These labels are not visible when the sub PCBs are installed.
SUB3
SUB2
SUB1
127 Overview
The sub PCBs plug into the main PCB with a multiposition connector and are retained in place with a screw/flat washer/lock washer. Any sub PCB can be installed in any of the sub PCB positions. A sensor that is supported by a sub PCB connects to that sub PCB with a cable. There are four types of sub PCBs, each supporting one type of optional sensor: The PID sub PCB supports a low range or a high range PID (photo ionization detector) sensor. The ESM-01 sub PCB supports any of the ESM-01 family toxic sensors. The TC sub PCB supports the EAGLE 2 TC (thermal conductivity) sensor. The Infrared (IR) sub PCB supports any of the EAGLE 2 IR sensors for combustible gas or CO2.
CONFIGURE CHANNELS > CH1: CH2: CH3: CH4: CAT (CH4) OXY (OXY) H2S (H2S) OP1 (PID)
If you configure a channel as an optional type that is mapped to a sub PCB position that has no sub PCB installed, the channel will be undefined and that
EAGLE 2 Operators Manual Channel Setup & Sub PCBs 128
channel will indicate a sensor failure during the startup sequence. The CONFIGURE CHANNELS LCD screen below illustrates this situation.
CONFIGURE CHANNELS > CH1: CH2: CH3: CH4: CAT (CH4) OXY (OXY) H2S (H2S) OP1 (---)
The --- to the right of OP1 indicates that no sub PCB is installed in position SUB1. See Configuring the Channels on page 100 for a complete description of the CONFIGURE CHANNELS Setup Mode menu item.
CONFIGURE GASES > CAT : CH4 (CAT) OP1 : IBL (PID) OP2 : NH3 (ESM) OP3 : --- (---)
Sensor Type
The four possible sensors are a catalytic sensor and three optional sensors. They are listed with the following information from left to right: The circuitry that supports the sensor and whether it is standard or optional This can be the catalytic circuit on the main PCB indicated by CAT or one of the sub PCBs indicated by OP1 (option 1), OP2 (option 2), and OP3 (option 3). OP1 indicates that the SUB1 PCB supports the sensor, OP2 indicates that the SUB2 PCB supports the sensor, and OP3 indicates that the SUB3 PCB supports the sensor. The OP1, OP2, and OP3 identifiers also indicate that the sensor is an optional sensor. The catalytic sensor is a standard sensor. Each of these is always listed.
The currently configured gas The catalytic sensor is always defined and configured even if it is not setup as active in CONFIGURE CHANNELS. If any of the Sub PCBs are not installed, then the corresponding sensor is undefined and the next two fields are filled with dashes (---). In the example above, the catalytic sensor is configured as methane (CH4), the sensor supported by the SUB1 PCB is configured as isobutylene (IBL), the sensor supported by the SUB2 PCB is configured as ammonia (NH3), and there is no sub PCB installed in position SUB3. The sensor type The sensor type can be one of the following: catalytic (CAT), photo ionization detector (PID), ESM-01 toxic (ESM), infrared (IR), or thermal conductivity (TC). Although any installed sensor type will be listed in CONFIGURE GASES, the only sensor types whose gas can be configured are catalytic, PID, and TC sensor types. If you select an ESM-01 toxic or IR type of sensor to configure in this menu item, a message will appear indicating that the gas configuration for this sensor is automatically detected by the EAGLE 2 and that manual configuration is not possible. Both of these sensor types have the gas configuration stored in memory onboard the sensor.
ESM & IR SENSOR ARE AUTOMATICALLY DETECTED. MANUAL SELECTION IS NOT POSSIBLE
See the appropriate optional sensor appendix for a complete description of configuring the gas for that type of sensor.
Description
Two types of PID sensors can be used with the EAGLE 2, a low range (high sensitivity) sensor and a high range (low sensitivity) sensor (see Table 13 for specifications). The PID sensor is installed in a single sensor flow chamber which is located in the area next to the standard 4-sensor flow chamber. This area can accommodate up to three single sensor flow chambers. Figure 26 below illustrates a typical PID sensor location in front of the pump. The PID flow chamber may also be installed in one of the other two sensor chamber locations depending on the particular version of the EAGLE 2. Some PID instrument configurations do not include the 4-sensor flow chamber.
131 Overview
Top Case Not Shown Charcoal Filter PID Sensor Standard Flow Chamber
Pump
CO Sensor
Description 132
IBL 0.00ppm
It is possible to temporarily configure a PID channel for a target gas other than the factory setting in Display Mode. See the next section, PID Relative Response Feature, for instructions to use this feature.
Acetone Benzene Diesel Fuel NO 1 Ethanol Gasoline Isobutylene Isopropanol JP-5 Fuel Methyl Ethyl Ketone Toluene N-Hexane Propylene Styrene Tetrachloroethylene Trichloroethylene Vinyl Chloride PID
0-30.00 0-25.00 0-40.00 0-400.00 0-50.00 0-50.00 0-200.00 0-30.00 0-40.00 0-25.00 0-200.00 0-50.00 0-20.00 0-30.00 0-30.00 0-100.00 0-50.00
5.00 0.50 2.00 10.0 3.00 4.30 2.0 1.40 2.00 0.50 5.0 5.00 0.20 0.24 0.50 1.0 OFF
7.50 2.50 3.00 15.0 5.00 6.00 4.0 2.10 3.00 1.50 10.0 7.50 0.40 1.00 1.00 5.0 OFF
OFF 2.50 OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF 5.0 OFF
OFF 0.50 OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF 1.0 OFF
Isobutylene Isopropanol JP-5 Fuel Methyl Ethyl Ketone Toluene N-Hexane Propylene Styrene Tetrachloroethylene Trichloroethylene Vinyl Chloride PID
0-2000 0-5000 0-1000 0-1500 0-1000 0-5000 0-2500 0-500 0-1000 0-1000 0-4000 0-2000
600 400 210 300 150 1000 750 40 100 100 500 OFF
60 400 OFF 300 150 1000 OFF 40 100 100 OFF OFF
The last choice in each list, PID, can be defined by the user and loaded in the EAGLE 2 using the Eagle 2 Maintenance Data Loader Program. See the Eagle 2 Maintenance Data Loader Program Operators Manual. 3. Use the AIR YES or RANGE SHIFT button to move the cursor next to the desired gas. 4. Press and release POWER ENTER RESET. The PID channel will be configured to the selected gas and the EAGLE 2 will proceed to the STEL Screen. This configuration will be in force until either a different gas is selected in Display Mode or the unit is turned off.
PID Calibration
A PID channel can be calibrated using the auto calibration method or the single calibration method. To calibrate a PID channel using the single calibration method, see Calibrating Using the Single Calibration Method on page 62 and follow the instructions for calibrating a single channel. NOTE: The factory setting for the Span Factor menu item in Setup Mode is OFF for an EAGLE 2 with a PID channel. So the range of adjustment is not displayed when a single calibration is performed for any channel if a PID sensor is installed. If your instrument is a multi-channel instrument that includes a PID channel,
RKI Instruments, Inc. recommends using the auto calibration method for convenience. The calibration instructions below show a 5 channel instrument which has the four standard channels, LEL/oxygen/H2S/CO, and a PID channel calibrated and setup for isobutylene (IBL). To use the auto calibration method to calibrate a multi-channel instrument that includes a PID channel, do the following: 1. See Calibration Supplies and Equipment on page 55 for a description of the necessary calibration supplies. In addition to an appropriate multigas cylinder that is used to calibrate any active standard channels, you will also need a cylinder to calibrate the PID channel. See Table 17 on page 162 for available cylinders. Make sure your calibration cylinder is appropriate for the PID detection range. 2. Find a fresh-air environment. This is an environment free of toxic or combustible gases and of normal oxygen content (20.9%). 3. While in Measuring Mode, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both buttons. 4. If the unit prompts you for the password, enter it by using the AIR YES and RANGE SHIFT buttons to select each password number and then pressing and releasing POWER ENTER RESET to enter the number and move on to the next one. 5. The Calibration Mode Screen displays with the cursor next to AUTO CALIBRATION.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
6. Move the cursor to the PERFORM AIR ADJUST menu item by using the RANGE SHIFT button.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
7. Press and release the POWER ENTER RESET button. The following screen appears.
8. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen. 9. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
10. Install the demand flow regulator onto the multi-gas calibration cylinder. 11. Connect the sample tubing to the demand flow regulator. 12. Install the probe on the EAGLE 2 inlet fitting. Make sure the probe is complete with internal O-ring and membrane and that the two halves of
139 PID Calibration EAGLE 2 Operators Manual
the probe are tightened firmly together to avoid leaks that can affect the calibration. See Figure 20, Replacing the Hydrophobic Filter Disk & Oring on page 72 for an illustration of the internal parts of the probe. 13. Move the cursor next to the AUTO CALIBRATION menu item by using the AIR YES button.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
14. Press and release the POWER ENTER RESET button to display the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
The gas concentrations displayed in the Calibration Gas Values Screen must match the gas concentrations listed on the 4-gas calibration cylinder. If all concentrations match, go to Step 25. If one or more concentrations do not match, continue with Step 15. If you do not want to continue with the calibration, press and release the DISPLAY ADJUST NO button to return to the Calibration Mode Screen. NOTE: The RKI 4-gas cylinder typically contains 12% O2 by volume. When using the auto calibration method, be sure to set the OXY auto calibration value to agree with the concentration listed on the cylinders label, not zero. 15. To adjust the values on the screen, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both. The following screen appears with the cursor next to CH4.
ADJUST AUTO CALIBRATION VALUES > CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm
16. Place the cursor next to the channel whose gas value you want to change using the AIR YES and RANGE SHIFT buttons. 17. Press and release the POWER ENTER RESET button to select the channel. The calibration gas value begins to flash. 18. Use the AIR YES and RANGE SHIFT buttons to adjust the calibration gas setting to the desired value. 19. Press and release the POWER ENTER RESET button to save the change. The calibration gas value stops flashing. 20. Repeat Step 15 through Step 19 for any other channels that need to be changed. 21. When you are done adjusting the calibration gas values, move the cursor down past the bottom of the screen next to END.
22. Press and release the POWER ENTER RESET button. The following screen appears.
DO YOU WANT TO STORE NEW VALUE(S) IN MEMORY FOR FUTURE CALIBRATIONS? PRESS YES OR NO
23. If you select YES by pressing and releasing the AIR YES button, the changes that you made will be saved in the EAGLE 2s memory as the new auto calibration gas values. If you select NO by pressing and releasing the DISPLAY ADJUST NO button, the changes you made will be used for any calibrations performed during the current operating session only. The EAGLE 2 will delete the changes when the unit is turned off and will load the previous set of auto calibration values when it is turned on again.
24. When you make your selection and press the desired button, the unit returns to the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
25. Press and release the POWER ENTER RESET button to proceed to the Calibration In Process Screen with CAL IN PROCESS flashing.
CAL IN PROCESS CH4 0 %LEL OXY 20.9 vol% H2S 0.0 ppm CO 0 ppm ENTER WHEN DONE
If you do not want to proceed with the calibration, press and release the DISPLAY ADJUST NO button to return to the Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 26. Connect the tubing from the demand flow regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 27. Press and release the POWER ENTER RESET button to set the span adjustment for each channel to the programmed values. 28. If all channels passed calibration, the following screen sequence occurs.
If any of the sensors cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and lists the sensor(s) that failed to calibrate. In the example below, the oxygen and H2S channels failed calibration. The other sensors calibrated normally.
FAIL SENSOR < > <OXY> <H2S> < > ENTER TO CONTINUE
The buzzer and alarm LEDs activate in a double pulsing pattern. Press and release the POWER ENTER RESET button to reset the alarm and continue to the Calibration Value Screen for the PID channel. After calibrating the PID channel by following the instructions below, attempt to calibrate the standard channels again. If the failure continues, investigate the cause. See Troubleshooting on page 67 29. Remove the tubing from the rigid tube on the probe. 30. Unscrew the 4-gas cylinder from the regulator. 31. If you want to change the PID channels calibration gas value, follow Step 5 - Step 24 above beginning with the PID Calibration Gas Value Screen below instead of the standard channel Calibration Gas Value Screen.
Screen. If you do want to continue with the calibration, proceed to the next step. 33. Screw the PID calibration cylinder onto the demand flow regulator. 34. Connect the tubing from the regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 35. Press and release the POWER ENTER RESET button to set the span adjustment for the PID channel to the programmed value. 36. If the PID channel passed calibration, the following screen sequence occurs.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
If the PID channel cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and indicates that the PID sensor failed to calibrate.
37. Disconnect the tubing from the probe. 38. Unscrew the demand flow regulator from the calibration cylinder. 39. Use the RANGE SHIFT button to place the cursor next to the NORMAL OPERATION menu option, then press and release the POWER ENTER RESET button to return to Measuring Mode.
Maintenance
The PID sensor includes user serviceable parts. They are the lamp and the electrode stack. This section includes procedures for cleaning the lamp, replacing the lamp, replacing the electrode stack, and replacing the PID sensor.
Perform the following procedure to clean the PID lamp: 1. Verify that the EAGLE 2 is off. 2. Place the EAGLE 2 upside down on a flat surface or hold it upside down. 3. Unscrew the three case screws until they disengage from the top case. They are captive screws so they will not fall off of the bottom case. 4. Turn the EAGLE 2 right side up and carefully lift the top case away from the bottom case. Be careful not to lift it so far that it pulls on the main PCB with the cable that connects the top case to the main PCB. 5. Lay the top case down next to the bottom case to allow access to the flow system. 6. Locate the PID sensor adapter. It has a five wire cable and is normally located next to the pump. The cable has a connector that mates to a PID sub PCB that is installed on the main PCB. Figure 26 on page 132 shows a PID sensor in a typical location. 7. Grasp the sensor adapter firmly and pull it out of the PID flow chamber.
145 Maintenance EAGLE 2 Operators Manual
Rock it back and forth gently if necessary to pull it out. Take care not to pull the cable connector from the PID sub PCB. 8. The PID sensor protrudes from one end of the sensor adapter. Grasp the PID sensor firmly and pull it out of the sensor adapter. 9. Place the PID sensor face down on a flat clean working surface. NOTE: Do not touch the lamp window with your fingers as this may contaminate the window with finger oil. At this point it is recommended that the finger cots be used on the fingers handling the lamp. Finger cots are included with the lamp cleaning kit. 10. Hold the PID sensor steady on the working surface with one hand and using the other hand, locate the tabs on the electrode stack removal tool and insert them into the slots on the side of the PID sensor near the face.
11. Squeeze the removal tool to push the tabs into the sensor slots until the electrode stack and lamp are released. 12. Carefully lift the PID sensor body away from the electrode stack and lamp. Take care not to touch the lamp window, the flat end of the lamp, with your fingers. If the lamp remains lodged in the sensor body, carefully remove it with tweezers.
Maintenance 146
Lamp Window
Figure 28: Lamp Window Location
13. If the spring in the lamp cavity comes out, place it back into the lamp cavity. 14. Hold the lamp in one hand being careful not to touch the lamp window with your fingers. 15. With the other hand collect a small amount of aluminum oxide powder on a cotton swab. 16. Use this cotton swab to polish the PID lamp window. Use a circular motion, applying light pressure to clean the lamp window. Do not touch the lamp window with your fingers.
17. Continue polishing until you can hear a squeaking sound made by the cotton swab moving over the window surface. This usually occurs after about 15 seconds of polishing. 18. Remove the residual powder from the lamp window with a clean cotton swab. Take care not to touch the tip of the cotton swab that is used to clean the lamp as this may contaminate it with finger oil.
147 Maintenance
19. Ensure the lamp is completely dry and any visible signs of contamination are removed before reinstalling. 20. Hold the electrode stack between the thumb and forefinger of one hand and place the window end of the lamp inside the O-ring seal in the electrode stack with the other hand as shown below.
21. Twisting the lamp slightly during insertion will help to ensure the lamp window is snug against the stack's front electrode. The lamp should be supported by the O-ring. 22. Continuing to hold the electrode stack between your forefinger and thumb, carefully insert the lamp into the lamp cavity in the sensor ensuring that the lamp remains in position. 23. Press in the electrode stack firmly to ensure that the stack wing clips are engaged and the faces of the stack and sensor body are flush. 24. Carefully line up the PID sensors pins with the sockets in the bottom of the sensor adapter and gently lower the sensor into the adapter until you feel it contact the bottom. 25. Do not attempt to push the sensor in farther once it makes contact with the bottom of the adapter until you are sure that the sensors pins are engaged with the sockets. If you feel that the pins did not engage the sockets, slightly rotate the sensor back and forth without putting pressure on it until you feel the pins engage the sockets. 26. Push the sensor into the sockets until it bottoms out.
EAGLE 2 Operators Manual Maintenance 148
27. Insert the sensor adapter into the PID flow chamber and push it in until it bottoms out. 28. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, it may be damaged when the top case is re-installed. 29. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 30. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 31. Calibrate the PID channel as described in PID Calibration on page 137.
149 Maintenance
9. Place the PID sensor face down on a flat clean working surface. 10. Hold the PID sensor steady on the working surface with one hand and using the other hand, locate the tabs on the electrode stack removal tool and insert them into the slots on the side of the PID sensor near the face.
11. Squeeze the removal tool to push the tabs into the sensor slots until the electrode stack and lamp are released. 12. Carefully lift the PID sensor body away from the electrode stack and lamp. If the lamp remains lodged in the sensor body, carefully remove it with tweezers. 13. If the spring in the lamp cavity comes out, place it back into the lamp cavity. 14. Discard the old PID lamp. NOTE: At this point it is recommended that the finger cots be used on the fingers handling the lamp. Finger cots are included with the lamp cleaning kit. 15. Hold the electrode stack between the thumb and forefinger of one hand and place the window end of the new lamp inside the O-ring seal in the electrode stack with the other hand as shown below. Take care not to touch the lamp window.
Maintenance 150
16. Twisting the lamp slightly during insertion will help to ensure the lamp window is snug against the stack's front electrode. The lamp should be supported by the O-ring. 17. Continuing to hold the electrode stack between your forefinger and thumb, carefully insert the lamp into the lamp cavity in the sensor ensuring that the lamp remains in position. 18. Press in the electrode stack firmly to ensure that the stack wing clips are engaged and the faces of the stack and sensor body are flush. 19. Carefully line up the PID sensors pins with the sockets in the bottom of the sensor adapter and gently lower the sensor into the adapter until you feel it contact the bottom. 20. Do not attempt to push the sensor in farther once it makes contact with the bottom of the adapter until you are sure that the sensors pins are engaged with the sockets. If you feel that the pins did not engage the sockets, slightly rotate the sensor back and forth without putting pressure on it until you feel the pins engage the sockets. 21. Push the sensor into the sockets until it bottoms out. 22. Insert the sensor adapter into the PID flow chamber and push it in until it bottoms out. 23. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, it may be damaged when the top case is re-installed.
151 Maintenance
24. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 25. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 26. Calibrate the PID channel as described in PID Calibration on page 137.
Maintenance 152
NOTE: At this point it is recommended that the finger cots be used on the fingers handling the lamp. Finger cots are included with the lamp cleaning kit. 10. Hold the PID sensor steady on the working surface with one hand and using the other hand, locate the tabs on the electrode stack removal tool and insert them into the slots on the side of the PID sensor near the face.
11. Squeeze the removal tool to push the tabs into the sensor slots until the electrode stack and lamp are released. 12. Carefully lift the PID sensor body away from the electrode stack and lamp. If the lamp remains lodged in the sensor body, carefully remove it with tweezers. 13. If the spring in the lamp cavity comes out, place it back into the lamp cavity. 14. Discard the old electrode stack. 15. Hold the new electrode stack between the thumb and forefinger of one hand and place the window end of the lamp inside the O-ring seal in the new electrode stack with the other hand as shown below. Take care not to touch the lamp window.
153 Maintenance
16. Twisting the lamp slightly during insertion will help to ensure the lamp window is snug against the stack's front electrode. The lamp should be supported by the O-ring. 17. Continuing to hold the electrode stack between your forefinger and thumb, carefully insert the lamp into the lamp cavity in the sensor ensuring that the lamp remains in position. 18. Press in the electrode stack firmly to ensure that the stack wing clips are engaged and the faces of the stack and sensor body are flush. 19. Carefully line up the PID sensors pins with the sockets in the bottom of the sensor adapter and gently lower the sensor into the adapter until you feel it contact the bottom. 20. Do not attempt to push the sensor in farther once it makes contact with the bottom of the adapter until you are sure that the sensors pins are engaged with the sockets. If you feel that the pins did not engage the sockets, slightly rotate the sensor back and forth without putting pressure on it until you feel the pins engage the sockets. 21. Push the sensor into the sockets until it bottoms out. 22. Insert the sensor adapter into the PID flow chamber and push it in until it bottoms out. 23. Confirm that the main PCB is seated in its slots and that its bottom edge
Maintenance 154
is resting on the bottom of the bottom case. If the main PCB is not seated properly, it may be damaged when the top case is re-installed. 24. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 25. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 26. Calibrate the PID channel as described in PID Calibration on page 137.
12. Insert the sensor adapter into the PID flow chamber and push it in until it bottoms out. 13. Plug the PID cable connector into the PID sub PCB on the main PCB. 14. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, it may be damaged when the top case is re-installed. 15. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 16. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 17. Calibrate the PID channel as described in PID Calibration on page 137.
GAS MONITOR
EAGLE 2
4. The S will then disappear and the following screen will appear for a few seconds.
GAS MONITOR
EAGLE 2
5. If the unit prompts you for the password, enter it by using AIR YES and RANGE SHIFT to select each password number and then pressing and releasing the POWER ENTER RESET button to enter it and move on to the next number until all of the numbers are entered. The main menu displays. It displays six menu items at a time.
>SET DATE & TIME SET DATE FORMAT SET BATTERY TYPE CONFIGURE CHANNELS CONFIGURE GASES CATALYTIC UNITS
6. Use the RANGE SHIFT button to move the cursor down the menu to CONFIGURE GASES. 7. Press and release POWER ENTER RESET. The Configure Gases Screen appears with the cursor flashing next to CAT, the catalytic sensor. If an EAGLE 2 has a PID sensor installed, one of the three optional sensor types, OP1, OP2, or OP3 will indicate it is a PID. In the example below, OP1 is shown as a PID sensor.
CONFIGURE GASES > CAT : CH4 (CAT) OP1 : IBL (PID) OP2 : --- (---) OP3 : --- (---)
8. Use RANGE SHIFT to move the cursor down the menu to the PID sensor.
CONFIGURE GASES CAT : CH4 (CAT) > OP1 : IBL (PID) OP2 : --- (---) OP3 : --- (---)
9. To change the PID sensor gas configuration, press and release POWER ENTER RESET. 10. A screen appears that indicates the PID type, low range or high range (flashing), and the detection range for the currently configured gas. In the example below, the PID sensor is currently configured as a high range sensor for 0 - 2,000 ppm isobutylene.
PID(0- 2000ppm IBL ) > 1000 ppm ACT 1000 ppm BNZ 1500 ppm DSL 15000 ppm ETA
There are 17 choices that can be viewed on five screens. Table 16 below lists all of the gas configuration choices.
Acetone (ACT) Benzene (BNZ Diesel Fuel No. 1 (DSL) Ethanol (ETA) Gasoline (GSL) Isobutylene (IBL) Standard Factory Gas Configuration Isopropanol (IPA) JP-5 Fuel (JP5) Methyl Ethyl Ketone (MEK) Toluene (TOL) N-Hexane (HEX) Propylene (PRL) Styrene (STY) Tetrachloroethylene (PCE) Trichloroethylene (TCE) Vinyl Chloride (VCM) PID (PID) User Defined Gas Loaded with Maintenance Program
30.00 ppm/1000 ppm 25.00 ppm/1000 ppm 40.00 ppm/1500 ppm 400.0 ppm/15000 ppm 50.00 ppm/2000 ppm 50.00 ppm/2000 ppm 200.0 ppm/5000 ppm 30.00 ppm/1000 ppm 40.00 ppm/1500 ppm 25.00 ppm/1000 ppm 200.0 ppm/5000 ppm 50.00 ppm/2500 ppm 20.00 ppm/500 ppm 30.00 ppm/1000 ppm 30.00 ppm/1000 ppm 100.0 ppm/4000 ppm 50.0 ppm/2000 ppm
12. Use AIR YES and RANGE SHIFT to place the cursor next to the desired gas. In the example below, the cursor is placed next to isopropanol (IPA).
PID(0- 2000ppm IBL ) 2000 ppm GSL 2000 ppm IBL > 5000 ppm IPA 1000 ppm JP5
13. Press and release the POWER ENTER RESET button. The LCD will ask for confirmation that you want to change the configured gas.
14. To change the gas configuration, press and release AIR YES. The unit will return to the Configure Gases Screen reflecting the new gas configuration.
CONFIGURE GASES CAT : CH4 (CAT) > OP1 : IPA (PID) OP2 : --- (---) OP3 : --- (---)
If you do not want to change the gas configuration, press and release DISPLAY ADJUST NO. The unit will return to the first gas configuration choice screen with the gas configuration unchanged.
PID(0- 2000ppm IBL ) > 1000 ppm ACT 1000 ppm BNZ 1500 ppm DSL 15000 ppm ETA
Select a different gas and go to Step 13 or press and release DISPLAY ADJUST NO to return to the Gas Configuration screen. 15. Use RANGE SHIFT to place the cursor next to END. 16. Press and release POWER ENTER RESET to return to the main menu. 17. Use RANGE SHIFT to place the cursor in front of NORMAL OPERATION at the bottom of the main menu. 18. Press and release POWER ENTER RESET.
19. A screen appears that asks if you want to save the changes you have made.
NOTE: If you entered Setup Mode and did not make any changes, the above screen will still appear. In this case, press and release DISPLAY ADJUST NO to proceed to exit Setup Mode and begin the EAGLE 2s startup sequence. 20. If you do not want to save the changes, press and release DISPLAY ADJUST NO. The unit will begin its startup sequence without saving the changes. If you do want to save the changes, press and release AIR YES and continue with the next step. 21. A confirmation screen appears asking if you are sure you want to save the changes.
22. If you want to save the changes, press and release AIR YES to save the changes. A screen will appear for a few seconds indicating that the changes have been saved and the unit will begin its startup sequence. If you do not want to save the changes, press and release DISPLAY ADJUST NO to proceed to the units startup sequence without saving changes.
Parts List
Table 17: PID EAGLE 2 Spare Parts
Part Number Description
33-0560RK 33-0561RK 51-1500RK 51-1501RK 57-2005RK 61-0300RK-01 61-0300RK-02 80-0605RK 80-0610RK 80-0615RK 80-0620RK 81-0103RK-01 81-0103RK-03 81-0103RK-04 81-0104RK-01 81-0104RK-03 81-0104RK-04 81-1054RK 81-1055RK 82-0003RK 82-0300RK
Electrode stack, 0 - 50 ppm, 2 pack Electrode stack, 0 - 2,000 ppm, 2 pack Replacement lamp, 0 - 50 ppm Replacement lamp, 0 - 2,000 ppm Adapter assembly, for PID sensor PID sensor, 0 - 50 ppm VOC PID sensor, 0 - 2,000 ppm VOC Teflon lined sample hose, 5 feet Teflon lined sample hose, 10 feet Teflon lined sample hose, 15 feet Teflon lined sample hose, 20 feet Calibration cylinder, isobutylene, 100 ppm in air, 34 liter steel Calibration cylinder, isobutylene, 100 ppm in air, 103 liter steel Calibration cylinder, isobutylene, 100 ppm in air, 34 liter aluminum Calibration cylinder, isobutylene, 10 ppm in air, 34 liter steel Calibration cylinder, isobutylene, 10 ppm in air, 103 liter steel Calibration cylinder, isobutylene, 10 ppm in air, 34 liter aluminum Regulator, demand-flow type (for 58- and 103-liter aluminum or steel, and 34-liter aluminum cylinder) Regulator, demand-flow type (for 17- and 34-liter steel cylinder) Electrode stack removal tool Lamp cleaning kit with electrode stack removal tool
Ammonia (NH3) Arsine (AsH3) Chlorine (Cl2) Hydrogen Cyanide (HCN) Phosphine (PH3) Sulphur Dioxide (SO2)
0 - 1.00 0 - 6.00
1.00 1.00
0.30 0.50
Description
Table 18 above lists the available ESM-01 sensors. The ESM-01 is a smart sensor that stores sensor parameters including the target gas, detection range, alarm points, and calibration settings in its memory. So a sensor can be calibrated at the factory and shipped as a replacement sensor without the need to calibrate the sensor when it is installed as long as it is installed during the sensors valid calibration period which is typically 3 months. In addition, you can change an existing ESM-01 channel from one type of ESM-01 sensor to another and the EAGLE 2 will automatically load all the sensor parameters and configure the ESM-01 channel for the new sensor without the need to enter CONFIGURE CHANNELS or CONFIGURE GASES in Setup Mode.
163 Overview EAGLE 2 Operators Manual
See Replacing the ESM-01 Sensor or Changing Sensor Type on page 174 for instructions to replace or change an ESM-01 sensor. Top Case Not Shown
Charcoal Filter ESM-01 Sensor Pump
CO Sensor
The ESM-01 sensor is installed in a single sensor flow chamber which is located in the area next to the standard 4-sensor flow chamber. This area can accommodate up to three single sensor flow chambers. Although the EAGLE 2 can support up to three ESM-01 sensors, many combinations are impractical for various reasons including sensor cross sensitivity to other gases. Consult RKI Instruments, Inc. for practical combinations. Figure 35 above illustrates a typical ESM-01 sensor location in front of the pump. The ESM-01 flow chamber may also be installed in one of the other two sensor chamber locations depending on the particular version of the EAGLE 2. Some ESM-01 instrument configurations do not include the 4-sensor flow chamber.
ESM-01 Sensor
The ESM-01 sensor is a cylindrical sensor with a diffusion opening on the front and a 12 pin circular connector on the back. A 12 wire cable plugs into the back of the ESM-01 sensor with a circular connector that includes a locking lever. The other end of the cable plugs into an ESM-01 sub PCB (see description below) that is installed on the main PCB. The sensor is held in the ESM-01 flow chamber by a bracket on standoffs.
EAGLE 2 Operators Manual Description 164
ESM-01 Calibration
An ESM-01 channel can be calibrated using the auto calibration method or the single calibration method. To calibrate an ESM-01 channel using the single calibration method, see Calibrating Using the Single Calibration Method on page 62 and follow the instructions for calibrating a single channel. If your instrument is a multi-channel instrument that includes one or more ESM-01 channels, RKI Instruments, Inc. recommends using the auto calibration method for convenience. The calibration instructions below show a 5 channel instrument which has the four standard channels, LEL/oxygen/ H2S/CO, and an ESM-01 channel for ammonia (NH3). To use the auto calibration method to calibrate a multi-channel instrument that includes an
165 Start Up and Normal Operation EAGLE 2 Operators Manual
ESM-01 channel, do the following: NOTE: If your instrument has more than one ESM-01 sensor, you will need a calibration cylinder for each sensor. 1. See Calibration Supplies and Equipment on page 55 for a description of the necessary calibration supplies. In addition to an appropriate multigas cylinder that is used to calibrate any active standard channels, you will also need a cylinder to calibrate the ESM-01 channel. See Table 19 on page 177 for available cylinders. Make sure your calibration cylinder is appropriate for the ESM-01 detection range. 2. Find a fresh-air environment. This is an environment free of toxic or combustible gases and of normal oxygen content (20.9%). 3. While in Measuring Mode, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both buttons. 4. If the unit prompts you for the password, enter it by using the AIR YES and RANGE SHIFT buttons to select each password number and then pressing and releasing POWER ENTER RESET to enter the number and move on to the next one. 5. The Calibration Mode Screen displays with the cursor next to AUTO CALIBRATION.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
6. Move the cursor to the PERFORM AIR ADJUST menu item by using the RANGE SHIFT button.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
7. Press and release the POWER ENTER RESET button. The following screen appears.
8. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen. 9. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
10. Install the demand flow regulator onto the multi-gas calibration cylinder. 11. Connect the sample tubing to the demand flow regulator. 12. Install the probe on the EAGLE 2 inlet fitting. Make sure the probe is
complete with internal O-ring and membrane and that the two halves of the probe are tightened firmly together to avoid leaks that can affect the calibration. See Figure 20 on page 72 for an illustration of the internal parts of the probe. 13. Move the cursor next to the AUTO CALIBRATION menu item by using the AIR YES button.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
14. Press and release the POWER ENTER RESET button to display the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
The gas concentrations displayed in the Calibration Gas Values Screen must match the gas concentrations listed on the 4-gas calibration cylinder. If all concentrations match, go to Step 25. If one or more concentrations do not match, continue with Step 15. If you do not want to continue with the calibration, press and release the DISPLAY ADJUST NO button to return to the Calibration Mode Screen. NOTE: The RKI 4-gas cylinder typically contains 12% O2 by volume. When using the auto calibration method, be sure to set the OXY auto calibration value to agree with the concentration listed on the cylinders label, not zero.
15. To adjust the values on the screen, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both. The following screen appears with the cursor next to CH4.
ADJUST AUTO CALIBRATION VALUES > CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm
16. Place the cursor next to the channel whose gas value you want to change using the AIR YES and RANGE SHIFT buttons. 17. Press and release the POWER ENTER RESET button to select the channel. The calibration gas value begins to flash. 18. Use the AIR YES and RANGE SHIFT buttons to adjust the calibration gas setting to the desired value. 19. Press and release the POWER ENTER RESET button to save the change. The calibration gas value stops flashing. 20. Repeat Step 16 through Step 19 for any other channels that need to be changed. 21. When you are done adjusting the calibration gas values, move the cursor down past the bottom of the screen next to END.
22. Press and release the POWER ENTER RESET button. The following screen appears.
DO YOU WANT TO STORE NEW VALUE(S) IN MEMORY FOR FUTURE CALIBRATIONS? PRESS YES OR NO
23. If you select YES by pressing and releasing the AIR YES button, the changes that you made will be saved in the EAGLE 2s memory as the
new auto calibration gas values. If you select NO by pressing and releasing the DISPLAY ADJUST NO button, the changes you made will be used for any calibrations performed during the current operating session only. The EAGLE 2 will delete the changes when the unit is turned off and will load the previous set of auto calibration values when it is turned on again. 24. When you make your selection and press the desired button, the unit returns to the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
25. Press and release the POWER ENTER RESET button to proceed to the Calibration In Process Screen with CAL IN PROCESS flashing.
CAL IN PROCESS CH4 0 %LEL OXY 20.9 vol% H2S 0.0 ppm CO 0 ppm ENTER WHEN DONE
If you do not want to proceed with the calibration, press and release the DISPLAY ADJUST NO button to return to the Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 26. Connect the tubing from the demand flow regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 27. Press and release the POWER ENTER RESET button to set the span adjustment for each channel to the programmed values.
28. If all channels passed calibration, the following screen sequence occurs.
FAIL SENSOR < > <OXY> <H2S> < > ENTER TO CONTINUE
The buzzer and alarm LEDs activate in a double pulsing pattern. Press and release the POWER ENTER RESET button to reset the alarm and continue to the Calibration Value Screen for the ESM-01 channel. After calibrating the ESM-01 channel by following the instructions below, attempt to calibrate the standard channels again. If the failure continues, investigate the cause. See Troubleshooting on page 67 29. Remove the tubing from the rigid tube on the probe. 30. Unscrew the 4-gas cylinder from the demand flow regulator.
31. If you want to change the ESM-01 channels calibration gas value, follow Step 15 - Step 24 above beginning with the ESM-01 Calibration Gas Value Screen below instead of the standard channel Calibration Gas Value Screen.
36. If the ESM-01 channel passed calibration, the following screen sequence occurs.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
If the ESM-01 channel cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and indicates that the ESM-01 sensor failed to calibrate.
Maintenance
The SO2 and HCN ESM-01 sensors are the only ESM-01 sensors that include user serviceable parts. This section includes a procedure for replacing an ESM-01 sensor and for replacing the H2S scrubber in the SO2 and HCN sensors. When replacing a sensor, you may either replace it with another of the same sensor or you may install a different ESM-01 sensor. If a different one is installed, the EAGLE 2 will load the sensor parameters and configure the ESM-01 channel for the new sensor.
Maintenance 174
the ESM-01 chamber. 14. Install the two sensor bracket screws. 15. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, it may be damaged when the top case is re-installed. 16. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 17. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 18. Calibrate the ESM-01 channel as described in ESM-01 Calibration on page 165.
175 Maintenance
in the sensor body by a threaded collar on the connector end of the sensor. Unscrew the collar from the sensor body.
12. Grasp the connector and lift the electrolyte reservoir assembly out of the sensor body. 13. Turn the body upside down to remove the H2S scrubber. If it does not come out, push on it from the top of the upside down body. 14. Discard the old H2S scrubber. 15. Carefully place the new H2S scrubber in the end of the sensor body. If the O-ring came out, place it back in making sure it is seated in its groove. 16. Place the electrolyte reservoir assembly back in the sensor body making sure that the ridges on the electrolyte reservoir assembly line up with the grooves inside the sensor body. CAUTION: Verify that the electrolyte reservoir assembly is properly aligned before inserting it into the sensor body. Forcing an electrolyte reservoir assembly into its sensor body may damage the electrolyte reservoir assembly or the sensor body. 17. Screw the collar of the ESM-01 sensor back on. 18. Plug the ESM-01 sensor back into the cable. 19. Insert the sensor into the ESM-01 flow chamber and push it in until it bottoms out. 20. Line up the holes in the ESM-01 sensor bracket with the two standoffs on
Maintenance 176
the ESM-01 chamber. 21. Install the two sensor bracket screws. 22. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, it may be damaged when the top case is re-installed. 23. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 24. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 25. Calibrate the ESM-01 channel as described in ESM-01 Calibration on page 165.
Parts List
Table 19: ESM-01 EAGLE 2 Parts List
Part Number Description
33-7120RK 33-7121RK 47-5015RK ESM-01DH-ASH3 ESM-01R-NH3 ESM-01DH-D-HCN ESM-01DH-PH3 ESM-01DH-F-SO2 ESM-K01-CL2 81-0170RK-02 81-0170RK-04 81-0175RK-02 81-0175RK-04 81-0185RK-02 81-0192RK-02
H2S scrubber disk, for ESM-01DH-D-HCN sensor H2S scrubber disk, for ESM-01DH-F-SO2 sensor ESM-01 sensor cable Arsine sensor, 0-1.50 ppm Ammonia sensor, 0-75.0 ppm Hydrogen cyanide sensor, 0-15.0 ppm Phosphine sensor, 0-1.00 ppm Sulfur dioxide sensor, 0-6.00 ppm Chlorine sensor, 0-3.00 ppm Calibration cylinder, 5 ppm SO2 in nitrogen, 58 liter Calibration cylinder, 5 ppm SO2 in nitrogen, 34 liter Calibration cylinder, 10 ppm NH3 in nitrogen, 58 liter Calibration cylinder, 10 ppm NH3 in nitrogen, 34 liter Calibration cylinder, 0.5 ppm PH3 in nitrogen, 58 liter Calibration cylinder, 2 ppm Cl2 in nitrogen, 58 liter
Part Number
Description
Calibration cylinder, 2 ppm Cl2 in nitrogen, 34 liter Calibration cylinder, 10 ppm HCN in nitrogen, 58 liter Calibration cylinder, 10 ppm HCN in nitrogen, 34 liter
Description
The TC sensor is installed in a single sensor flow chamber which is located in the area next to the standard 4-sensor flow chamber. This area can accommodate up to three single sensor flow chambers. Figure 37 below illustrates a typical TC sensor location in front of the pump. The TC flow chamber may also be installed in one of the other two sensor chamber locations depending on the particular version of the EAGLE 2. Some TC sensor instrument configurations do not include the 4-sensor flow chamber.
179 Overview
Top Case Not Shown TC Sensor Charcoal Filter Standard Flow Chamber Pump
CO Sensor
TC Sensor
The TC sensors appearance is exactly the same as that of the LEL sensor. Its housing includes a sintered metal flame arrestor on one end that allows gas to diffuse into the sensor. On the other end, five pins extend from the sensor. The TC sensor can be distinguished from the LEL sensor by the part number imprinted on it. The TC sensor part number is TE-7568 while the LEL part number is NC-6260B. The sensor cable connects to pins on one end and terminates in a four-position connector on the other end which plugs into the TC sub PCB (see description below). The sensor bracket is installed over the TC sensor to keep it seated in place. NOTE: The LEL and TC sensors and sensor cables are identical in appearance. Take care not to plug the LEL sensor cable into the port on the TC sub PCB and not to plug the TC sensor cable into the LEL port on the main PCB.
TC Sub PCB
The TC sub PCB is a circuit board that is installed on the main PCB in one of the 3 sub PCB positions when a TC sensor is used with the EAGLE 2. The
Description 180
TC sensor cable connects to the sub PCB. The sub PCB plugs into the main PCB and is held in place with a screw/flat washer/lock washer. There are no user serviceable parts on the TC sub PCB.
1. Use the DISPLAY ADJUST NO button to enter Display Mode and scroll to the Catalytic (LEL) Sensor screen. The current setting will be flashing. The screen below indicates the warning that appears when a TC sensor and a catalytic LEL sensor are both installed. Since the TC sensor only reads in %volume, if the catalytic LEL sensor is disabled, there will be no alarms for the LEL range.
CAT (LEL) SENSOR * * * WARNING * * * NO LEL ALARMS IF CAT (LEL) IS DISABLED ENABLED
2. Use the AIR YES or RANGE SHIFT button to toggle to the desired setting. If set to DISABLED, the gas reading for the catalytic LEL channel will be replaced by dashes (---). 3. Press and release POWER ENTER RESET to save the setting and return to the main menu. 4. Use the DISPLAY ADJUST NO button to scroll through the rest of Display Mode and enter Normal Operation.
TC Calibration
A TC channel can be calibrated using the auto calibration method or the single calibration method. To calibrate a TC channel using the single calibration method, see Calibrating Using the Single Calibration Method on page 62 and follow the instructions for calibrating a single channel. If your instrument is a multi-channel instrument that includes one or more TC channels, RKI Instruments, Inc. recommends using the auto calibration method for convenience. The calibration instructions below show a 5 channel instrument which has the four standard channels, LEL/oxygen/H2S/CO, and a TC channel configured for 0-100 %vol CH4. To use the auto calibration method to calibrate a multi-channel instrument that includes a TC channel, do the following: 1. See Calibration Supplies and Equipment on page 55 for a description of the necessary calibration supplies. In addition to an appropriate multigas cylinder that is used to calibrate any active standard channels, you will also need a cylinder to calibrate the TC channel. See Table 21 on page 197 for available cylinders. Make sure your calibration cylinder is
TC Calibration 182
appropriate for the TC detection range. If the EAGLE 2 is intended for use in a landfill, RKI Instruments, Inc. recommends using the carbon dioxide/methane mix calibration cylinder because it is representative of gases present in a landfill. NOTE: If your instrument has more than one TC sensor, you will need a calibration cylinder for each sensor. 2. Find a fresh-air environment. This is an environment free of toxic or combustible gases and of normal oxygen content (20.9%). 3. While in Measuring Mode, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both buttons. 4. If the unit prompts you for the password, enter it by using the AIR YES and RANGE SHIFT buttons to select each password number and then pressing and releasing POWER ENTER RESET to enter the number and move on to the next one. 5. The Calibration Mode Screen displays with the cursor next to AUTO CALIBRATION.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
6. Move the cursor to the PERFORM AIR ADJUST menu item by using the RANGE SHIFT button.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
183 TC Calibration
7. Press and release the POWER ENTER RESET button. The following screen appears.
8. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen. 9. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
10. Install the demand flow regulator onto the multi-gas calibration cylinder. 11. Connect the sample tubing to the demand flow regulator. 12. Install the probe on the EAGLE 2 inlet fitting. Make sure the probe is
TC Calibration 184
complete with internal O-ring and membrane and that the two halves of the probe are tightened firmly together to avoid leaks that can affect the calibration. See Figure 20, Replacing the Hydrophobic Filter Disk & Oring on page 72 for an illustration of the internal parts of the probe. 13. Move the cursor next to the AUTO CALIBRATION menu item by using the AIR YES button.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
14. Press and release the POWER ENTER RESET button to display the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
The gas concentrations displayed in the Calibration Gas Values Screen must match the gas concentrations listed on the 4-gas calibration cylinder. If all concentrations match, go to Step 25. If one or more concentrations do not match, continue with Step 15. If you do not want to continue with the calibration, press and release the DISPLAY ADJUST NO button to return to the Calibration Mode Screen. NOTE: The RKI 4-gas cylinder typically contains 12% O2 by volume. When using the auto calibration method, be sure to set the OXY auto calibration value to agree with the concentration listed on the cylinders label, not zero.
185 TC Calibration
15. To adjust the values on the screen, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both. The following screen appears with the cursor next to CH4.
ADJUST AUTO CALIBRATION VALUES > CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm
16. Place the cursor next to the channel whose gas value you want to change using the AIR YES and RANGE SHIFT buttons. 17. Press and release the POWER ENTER RESET button to select the channel. The calibration gas value begins to flash. 18. Use the AIR YES and RANGE SHIFT buttons to adjust the calibration gas setting to the desired value. 19. Press and release the POWER ENTER RESET button to save the change. The calibration gas value stops flashing. 20. Repeat Step 16 through Step 19 for any other channels that need to be changed. 21. When you are done adjusting the calibration gas values, move the cursor down past the bottom of the screen next to END.
22. Press and release the POWER ENTER RESET button. The following screen appears.
DO YOU WANT TO STORE NEW VALUE(S) IN MEMORY FOR FUTURE CALIBRATIONS? PRESS YES OR NO
23. If you select YES by pressing and releasing the AIR YES button, the changes that you made will be saved in the EAGLE 2s memory as the
TC Calibration 186
new auto calibration gas values. If you select NO by pressing and releasing the DISPLAY ADJUST NO button, the changes you made will be used for any calibrations performed during the current operating session only. The EAGLE 2 will delete the changes when the unit is turned off and will load the previous set of auto calibration values when it is turned on again. 24. When you make your selection and press the desired button, the unit returns to the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
25. Press and release the POWER ENTER RESET button to proceed to the Calibration In Process Screen with CAL IN PROCESS flashing.
CAL IN PROCESS CH4 0 %LEL OXY 20.9 vol% H2S 0.0 ppm CO 0 ppm ENTER WHEN DONE
If you do not want to proceed with the calibration, press and release the DISPLAY ADJUST NO button to return to the Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 26. Connect the tubing from the demand flow regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 27. Press and release the POWER ENTER RESET button to set the span adjustment for each channel to the programmed values.
187 TC Calibration
28. If all channels passed calibration, the following screen sequence occurs.
FAIL SENSOR < > <OXY> <H2S> < > ENTER TO CONTINUE
The buzzer and alarm LEDs activate in a double pulsing pattern. Press and release the POWER ENTER RESET button to reset the alarm and continue to the Calibration Value Screen for the TC channel. After calibrating the TC channel by following the instructions below, attempt to calibrate the standard channels again. If the failure continues, investigate the cause. See Troubleshooting on page 67 29. Remove the tubing from the rigid tube on the probe. 30. Unscrew the 4-gas cylinder from the demand flow regulator.
TC Calibration 188
31. If you want to change the TC channels calibration gas value, follow Step 15 - Step 24 above beginning with the TC Calibration Gas Value Screen below instead of the standard channel Calibration Gas Value Screen.
189 TC Calibration
36. If the TC channel passed calibration, the following screen sequence occurs.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
If the TC channel cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and indicates that the TC sensor failed to calibrate.
TC Calibration 190
Maintenance
The TC sensor does not include any user serviceable parts. This section includes a procedure for replacing the TC sensor.
properly, it may be damaged when the top case is reinstalled. 16. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 17. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 18. Calibrate the TC channel as described in TC Calibration on page 182.
GAS MONITOR
EAGLE 2
4.
The S will then disappear and the following screen will appear for a few seconds.
GAS MONITOR
EAGLE 2
5. If the unit prompts you for the password, enter it by using AIR YES and RANGE SHIFT to select each password number and then pressing and releasing the POWER ENTER RESET button to enter it and move on to the next number until all of the numbers are entered. The main menu displays. It displays six menu items at a time.
>SET DATE & TIME SET DATE FORMAT SET BATTERY TYPE CONFIGURE CHANNELS CONFIGURE GASES CATALYTIC UNITS
6. Use the RANGE SHIFT button to move the cursor down the menu to CONFIGURE GASES. 7. Press and release POWER ENTER RESET. The Configure Gases Screen appears with the cursor flashing next to CAT, the catalytic sensor. If an EAGLE 2 has a TC sensor installed, one of the three optional sensor types, OP1, OP2, or OP3 will indicate it is a TC. In the example below, OP1 is shown as a TC sensor.
CONFIGURE GASES > CAT : CH4 (CAT) OP1 : CH4 (TC) OP2 : --- (---) OP3 : --- (---)
8. Use RANGE SHIFT to move the cursor down the menu to the TC sensor.
CONFIGURE GASES CAT : CH4 (CAT) > OP1 : CH4 (TC) OP2 : --- (---) OP3 : --- (---)
9. To change the TC sensor gas configuration, press and release POWER ENTER RESET. 10. A screen appears that indicates the detection range for the currently configured gas. In the example below, the TC sensor is currently configured for 0 - 100 %volume CH4. The screen also shows the gas configuration choices for the TC sensor. There are 3 pre-defined options and 1 user-defined option. The user-defined option will always have an asterisk next to it.
TC (0-100.0vol%CH4) > 100.0 vol% CH4 100.0 vol% H2 10.0 vol% H2 10.0 vol% TC
11. Use AIR YES and RANGE SHIFT to move the cursor next to the desired gas. 12. If you placed the cursor next to one of the pre-defined gases, press and release POWER ENTER RESET to select the gas and proceed to Step 17. If you placed the cursor next to the user defined gas with the asterisk (*), press POWER ENTER RESET and proceed with Step 13. 13. The user defined gas setup screen appears with the first character of the gas name flashing. The current gas name and range are shown on the top line of the screen.
WARNING: Do not use the user defined gas configuration without consulting RKI Instruments, Inc. 14. Enter the gas name. There are 3 characters available for the gas name. The factory setting of TC uses only 2 characters. Use AIR YES and RANGE SHIFT to display the desired character, then press POWER ENTER RESET to enter the displayed character and move to the next character. Repeat until all three characters are entered. When the last character is entered, the full scale value will be flashing. 15. Use AIR YES and RANGE SHIFT to display the desired full scale value. It may be any value from 10 to 100 in increments of 10. 16. Press and release POWER ENTER RESET to enter the full scale value. The confirmation screen appears. In the example below, the user defined gas has been selected and defined as propane with the gas name set to PRO.
CONFIGURE GASES > CAT : OP1 : OP2 : OP3 : CH4 (CAT) PRO (TC) --- (---) --- (---)
If you do not want to accept the gas configuration change, press and release DISPLAY ADJUST NO to return to the screen with the gas choices shown in Step 10 on page 194. You can either scroll down to END and press POWER ENTER RESET to return to the Configure Gases screen or continue from Step 10 on page 194 to select a new gas. 18. Use RANGE SHIFT to place the cursor next to END. 19. Press and release POWER ENTER RESET to return to the main menu. 20. Use RANGE SHIFT to place the cursor in front of NORMAL OPERATION at the bottom of the main menu.
21. Press and release POWER ENTER RESET. 22. A screen appears that asks if you want to save the changes you have made.
NOTE: If you entered Setup Mode and did not make any changes, the above screen will still appear. In this case, press and release DISPLAY ADJUST NO to proceed to exit Setup Mode and begin the EAGLE 2s startup sequence. 23. If you do not want to save the changes, press and release DISPLAY ADJUST NO. The unit will begin its startup sequence without saving the changes. If you do want to save the changes, press and release AIR YES and continue with the next step. 24. A confirmation screen appears asking if you are sure you want to save the changes.
25. If you want to save the changes, press and release AIR YES to save the changes. A screen will appear for a few seconds indicating that the changes have been saved and the unit will begin its startup sequence. If you do not want to save the changes, press and release DISPLAY ADJUST NO to proceed to the units startup sequence without saving changes.
Parts List
Table 21: TC EAGLE 2 Parts List
Part Number Description
TC/LEL sensor cable TC sensor Calibration cylinder, 50% vol CH4 in N2, 34 liter steel Calibration cylinder, 50% vol CH4 in N2, 58 liter steel Calibration cylinder, H2, 8% volume in nitrogen, 34 liter steel Calibration cylinder, H2, 100% volume, 34 liter steel Calibration cylinder, 35% CO2/50% CH4, balance N2, 34 liter steel, intended for landfill applications
Description
Table 22 above lists the available infrared CO2 sensors. The infrared CO2 sensor is a smart sensor that stores sensor parameters including the target gas and detection range. So you can change an existing infrared CO2 channel from one range to another and the EAGLE 2 will automatically load all the sensor parameters and configure the infrared CO2 channel for the new sensor without the need to enter CONFIGURE CHANNELS or CONFIGURE GASES in Setup Mode. See Replacing the IR CO2 Sensor or Changing Sensor Type on page 209 for instructions to replace or change an infrared CO2 sensor.
Overview 198
Top Case Not Shown CO Sensor Infrared CO2 Sensor Charcoal Filter Standard Flow Chamber Pump H2S Sensor
The infrared CO2 sensor is installed in a single sensor flow chamber which is located in the area next to the standard 4-sensor flow chamber. This area can accommodate up to three single sensor flow chambers. Figure 38 above illustrates a typical infrared CO2 sensor location in front of the pump. The infrared CO2 flow chamber may also be installed in one of the other two sensor chamber locations depending on the particular version of the EAGLE 2. Some infrared CO2 instrument configurations do not include the 4-sensor flow chamber.
one of the 3 sub PCB positions when an infrared CO2 sensor is used with the EAGLE 2. The infrared CO2 sensor connects to the sub PCB with a 12position connector. The sub PCB plugs into the main PCB and is held in place with a screw/flat washer/lock washer. There are no user serviceable parts on the infrared sub PCB.
CO2 Scrubber
A carbon dioxide scrubber is mounted to the exterior side of EAGLE 2s that are factory-shipped with carbon dioxide sensors for the ranges of 0-5 %vol and 0-10,000 ppm. NOTE: EAGLE 2s with a range of 0-60 %vol CO2 do not include a scrubber since the normal background of CO2 in air is negligible when compared to the full scale of these units. This scrubber is for use when setting the carbon dioxide sensors zero reading only. Replace the scrubber when it turns from white to a violet color.
When you perform a demand zero during start up, operation, or calibration of a 0-10,000 ppm or 0-5 %vol CO2 instrument, you must use the CO2 scrubber provided with the instrument to remove background CO2 from the air being sampled. See Performing a Demand Zero for Carbon Dioxide Sensors below.
Since there is a background of CO2 in air, do not use the AUTO FRESH AIR ADJ feature that can be turned on and off in Setup Mode. The factory setting for the feature is off.
3. While in Measuring Mode, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both buttons. 4. If the unit prompts you for the password, enter it by using the AIR YES and RANGE SHIFT buttons to select each password number and then pressing and releasing POWER ENTER RESET to enter the number and move on to the next one. 5. The Calibration Mode Screen displays with the cursor next to AUTO CALIBRATION.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
6. Move the cursor to the PERFORM AIR ADJUST menu item by using the RANGE SHIFT button.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
7. Attach the CO2 scrubber to the inlet fitting of the EAGLE 2 and allow the instrument to draw gas for 1 minute before performing an air adjust. NOTE: Attaching the CO2 scrubber to the inlet fitting eliminates the background CO2 found in fresh air and allows the EAGLE 2 to obtain an accurate zero reading. 8. Press and release the POWER ENTER RESET button. The following screen appears.
9. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen.
10. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
11. Remove the CO2 scrubber from the EAGLE 2 inlet fitting. 12. Install the demand flow regulator onto the multi-gas calibration cylinder. 13. Connect the sample tubing to the demand flow regulator. 14. Install the probe on the EAGLE 2 inlet fitting. Make sure the probe is complete with internal O-ring and membrane and that the two halves of the probe are tightened firmly together to avoid leaks that can affect the calibration. See Figure 20, Replacing the Hydrophobic Filter Disk & Oring on page 72 for an illustration of the internal parts of the probe.
15. Move the cursor next to the AUTO CALIBRATION menu item by using the AIR YES button.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
16. Press and release the POWER ENTER RESET button to display the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
The gas concentrations displayed in the Calibration Gas Values Screen must match the gas concentrations listed on the 4-gas calibration cylinder. If all concentrations match, go to Step 27. If one or more concentrations do not match, continue with Step 17. If you do not want to continue with the calibration, press and release the DISPLAY ADJUST NO button to return to the Calibration Mode Screen. NOTE: The RKI 4-gas cylinder typically contains 12% O2 by volume. When using the auto calibration method, be sure to set the OXY auto calibration value to agree with the concentration listed on the cylinders label, not zero. 17. To adjust the values on the screen, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both. The following screen appears with the cursor next to CH4.
ADJUST AUTO CALIBRATION VALUES > CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm
18. Place the cursor next to the channel whose gas value you want to change using the AIR YES and RANGE SHIFT buttons. 19. Press and release the POWER ENTER RESET button to select the
EAGLE 2 Operators Manual Infrared CO2 Calibration 204
channel. The calibration gas value begins to flash. 20. Use the AIR YES and RANGE SHIFT buttons to adjust the calibration gas setting to the desired value. 21. Press and release the POWER ENTER RESET button to save the change. The calibration gas value stops flashing. 22. Repeat Step 17 through Step 21 for any other channels that need to be changed. 23. When you are done adjusting the calibration gas values, move the cursor down past the bottom of the screen next to END.
24. Press and release the POWER ENTER RESET button. The following screen appears.
DO YOU WANT TO STORE NEW VALUE(S) IN MEMORY FOR FUTURE CALIBRATIONS? PRESS YES OR NO
25. If you select YES by pressing and releasing the AIR YES button, the changes that you made will be saved in the EAGLE 2s memory as the new auto calibration gas values. If you select NO by pressing and releasing the DISPLAY ADJUST NO button, the changes you made will be used for any calibrations performed during the current operating session only. The EAGLE 2 will delete the changes when the unit is turned off and will load the previous set of auto calibration values when it is turned on again.
26. When you make your selection and press the desired button, the unit returns to the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
27. Press and release the POWER ENTER RESET button to proceed to the Calibration In Process Screen with CAL IN PROCESS flashing.
CAL IN PROCESS CH4 0 %LEL OXY 20.9 vol% H2S 0.0 ppm CO 0 ppm ENTER WHEN DONE
If you do not want to proceed with the calibration, press and release the DISPLAY ADJUST NO button to return to the Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 28. Connect the tubing from the demand flow regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 29. Press and release the POWER ENTER RESET button to set the span adjustment for each channel to the programmed values. 30. If all channels passed calibration, the following screen sequence occurs.
If any of the sensors cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and lists the sensor(s) that failed to calibrate. In the example below, the oxygen and H2S channels failed calibration. The other sensors calibrated normally.
FAIL SENSOR < > <OXY> <H2S> < > ENTER TO CONTINUE
The buzzer and alarm LEDs activate in a double pulsing pattern. Press and release the POWER ENTER RESET button to reset the alarm and continue to the Calibration Value Screen for the infrared CO2 channel. After calibrating the infrared CO2 channel by following the instructions below, attempt to calibrate the standard channels again. If the failure continues, investigate the cause. See Troubleshooting on page 67 31. Remove the tubing from the rigid tube on the probe. 32. Unscrew the 4-gas cylinder from the demand flow regulator. 33. If you want to change the infrared CO2 channels calibration gas value, follow Step 17 - Step 26 above beginning with the infrared CO2 Calibration Gas Value Screen below instead of the standard channel Calibration Gas Value Screen.
If you do not want to proceed with the calibration, press and release the DISPLAY ADJUST NO button to return to the infrared CO2 Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 35. Screw the infrared CO2 calibration cylinder onto the demand flow regulator. 36. Connect the tubing from the regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for the appropriate time shown in the table below.
Table 24: IR CO2 Sensor Calibration Times
Range 0-5.00 %vol 0-10,000 ppm 0-60.0 %vol Calibration Time 1 minute 90 seconds 90 seconds
37. Press and release the POWER ENTER RESET button to set the span adjustment for the infrared CO2 channel to the programmed value. 38. If the infrared CO2 channel passed calibration, the following screen sequence occurs.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
If the infrared CO2 channel cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and indicates that the infrared CO2 sensor failed to calibrate.
Maintenance
This section includes a procedure for replacing an infrared CO2 sensor.
7. Unscrew and remove the two screws that hold down the infrared CO2 sensor bracket. 8. Grasp the sensor firmly and pull it out of the infrared CO2 flow chamber. Rock it back and forth gently if necessary to pull it out. Take care not to pull the cable from the sub PCB. 9. Rotate the locking lever counterclockwise on the cable connector that mates to the infrared CO2 sensor to unlock it. 10. Unplug the old infrared CO2 sensor from the cable. 11. Connect the new infrared CO2 sensor to the sensor cable and rotate the locking lever clockwise to lock the connector. 12. Insert the sensor into the infrared CO2 flow chamber and push it in until it bottoms out. 13. Line up the holes in the infrared CO2 sensor bracket with the two standoffs on the infrared CO2 chamber. 14. Install the two sensor bracket screws. 15. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, it may be damaged when the top case is re-installed. 16. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 17. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 18. Calibrate the infrared CO2 channel as described in Infrared CO2 Calibration on page 201.
Parts List
Table 25: Infrared CO2 EAGLE 2 Parts List
Part Number Description
Infrared CO2 sensor cable Infrared CO2 sensor, 0-5 %vol Infrared CO2 sensor, 0-10,000 ppm
Part Number
Description
Infrared CO2 sensor, 0-60 %vol Calibration cylinder, 5000 ppm CO2 in nitrogen, 34 liter Calibration cylinder, 5000 ppm CO2 in nitrogen, 103 liter Calibration cylinder, 2.5 %vol CO2 in nitrogen, 34 liter Calibration cylinder, 2.5 %vol CO2 in nitrogen, 103 liter Calibration cylinder, 15 %vol CO2 in nitrogen, 34 liter Calibration cylinder, 15 %vol CO2 in nitrogen, 103 liter
1 %LEL
10 %LEL
50 %LEL
N/A
N/A
10 %LEL N/A
50 %LEL N/A
N/A N/A
N/A N/A
Target Gases
The infrared methane sensor is setup for and factory-calibrated to methane. There are gases that the sensor will still detect and respond to. There are also gases that the methane sensor will not detect or respond to. Lists of the gases falling in each of these respective categories can be found below. Consult RKI Instruments, Inc. for combustible gases not listed below. The infrared methane sensor is known to respond to the following combustible gases: ethane hexane IPA isobutane MEK propane toluene
Overview 212
The infrared methane sensor is known to not or to poorly respond to the following combustible gases: acetylene hydrogen styrene
Description
Table 26 and Table 27 above list the available infrared methane sensor configurations. The infrared methane sensor is a smart sensor that stores the target gas. Top Case Not Shown
Charcoal Filter Infrared CH4 Sensor Pump
CO Sensor
The infrared methane sensor is installed in a single sensor flow chamber which is located in the area next to the standard 4-sensor flow chamber. This area can accommodate up to three single sensor flow chambers. Figure 39 above illustrates a typical infrared methane sensor location in front of the pump. The infrared methane flow chamber may also be installed in one of the other two sensor chamber locations depending on the particular version of the EAGLE 2. Some infrared methane instrument configurations do not include the 4-sensor flow chamber.
213 Description
The default setting is enabled. To change the setting, do the following: NOTE: The Catalytic (LEL) Sensor setting is reset when the EAGLE 2 is turned off. When the EAGLE 2 is turned on, this setting is always ENABLED. 1. Use the DISPLAY ADJUST NO button to enter Display Mode and scroll to the Catalytic (LEL) Sensor screen. The current setting will be flashing.
ENABLED
2. Use the AIR YES or RANGE SHIFT button to toggle to the desired setting. If set to DISABLED, the gas readings for the catalytic LEL channel will be replaced by dashes (---). 3. Press and release POWER ENTER RESET to save the setting and return to the main menu. 4. Use the DISPLAY ADJUST NO button to scroll through the rest of Display Mode and enter Normal Operation.
To use the auto calibration method to calibrate a multi-channel instrument that includes an infrared methane channel, do the following: 1. See Calibration Supplies and Equipment on page 55 for a description of the necessary calibration supplies. In addition to an appropriate multigas cylinder that is used to calibrate any active standard channels, you will also need a cylinder to calibrate the infrared methane channel. See Table 28 on page 224 for available cylinders. Make sure your calibration cylinder is appropriate for the infrared methane detection range. 2. Find a fresh-air environment. This is an environment free of toxic or combustible gases and of normal oxygen content (20.9%). 3. While in Measuring Mode, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both buttons. 4. If the unit prompts you for the password, enter it by using the AIR YES and RANGE SHIFT buttons to select each password number and then pressing and releasing POWER ENTER RESET to enter the number and move on to the next one. 5. The Calibration Mode Screen displays with the cursor next to AUTO CALIBRATION.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
6. Move the cursor to the PERFORM AIR ADJUST menu item by using the RANGE SHIFT button.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
7. Press and release the POWER ENTER RESET button. The following screen appears.
8. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen. 9. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
10. Install the demand flow regulator onto the multi-gas calibration cylinder. 11. Connect the sample tubing to the demand flow regulator. 12. Install the probe on the EAGLE 2 inlet fitting. Make sure the probe is complete with internal O-ring and membrane and that the two halves of
the probe are tightened firmly together to avoid leaks that can affect the calibration. See Figure 20, Replacing the Hydrophobic Filter Disk & Oring on page 72 for an illustration of the internal parts of the probe. 13. Move the cursor next to the AUTO CALIBRATION menu item by using the AIR YES button.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
14. Press and release the POWER ENTER RESET button to display the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
The gas concentrations displayed in the Calibration Gas Values Screen must match the gas concentrations listed on the 4-gas calibration cylinder. If all concentrations match, go to Step 25. If one or more concentrations do not match, continue with Step 15. If you do not want to continue with the calibration, press and release the DISPLAY ADJUST NO button to return to the Calibration Mode Screen. NOTE: The RKI 4-gas cylinder typically contains 12% O2 by volume. When using the auto calibration method, be sure to set the OXY auto calibration value to agree with the concentration listed on the cylinders label, not zero. 15. To adjust the values on the screen, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both. The following screen appears with the cursor next to CH4.
ADJUST AUTO CALIBRATION VALUES > CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm
16. Place the cursor next to the channel whose gas value you want to change using the AIR YES and RANGE SHIFT buttons. 17. Press and release the POWER ENTER RESET button to select the channel. The calibration gas value begins to flash. 18. Use the AIR YES and RANGE SHIFT buttons to adjust the calibration gas setting to the desired value. 19. Press and release the POWER ENTER RESET button to save the change. The calibration gas value stops flashing. 20. Repeat Step 16 through Step 19 for any other channels that need to be changed. 21. When you are done adjusting the calibration gas values, move the cursor down past the bottom of the screen next to END.
22. Press and release the POWER ENTER RESET button. The following screen appears.
DO YOU WANT TO STORE NEW VALUE(S) IN MEMORY FOR FUTURE CALIBRATIONS? PRESS YES OR NO
23. If you select YES by pressing and releasing the AIR YES button, the changes that you made will be saved in the EAGLE 2s memory as the new auto calibration gas values. If you select NO by pressing and releasing the DISPLAY ADJUST NO button, the changes you made will be used for any calibrations performed during the current operating session only. The EAGLE 2 will delete the changes when the unit is turned off and will load the previous set of auto calibration values when it is turned on again.
24. When you make your selection and press the desired button, the unit returns to the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
25. Press and release the POWER ENTER RESET button to proceed to the Calibration In Process Screen with CAL IN PROCESS flashing.
CAL IN PROCESS CH4 0 %LEL OXY 20.9 vol% H2S 0.0 ppm CO 0 ppm ENTER WHEN DONE
If you do not want to proceed with the calibration, press and release the DISPLAY ADJUST NO button to return to the Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 26. Connect the tubing from the demand flow regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 27. Press and release the POWER ENTER RESET button to set the span adjustment for each channel to the programmed values. 28. If all channels passed calibration, the following screen sequence occurs.
If any of the sensors cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and lists the sensor(s) that failed to calibrate. In the example below, the oxygen and H2S channels failed calibration. The other sensors calibrated normally.
FAIL SENSOR < > <OXY> <H2S> < > ENTER TO CONTINUE
The buzzer and alarm LEDs activate in a double pulsing pattern. Press and release the POWER ENTER RESET button to reset the alarm and continue to the Calibration Value Screen for the infrared methane channel. After calibrating the infrared methane channel by following the instructions below, attempt to calibrate the standard channels again. If the failure continues, investigate the cause. See Troubleshooting on page 67. 29. Remove the tubing from the rigid tube on the probe. 30. Unscrew the 4-gas cylinder from the demand flow regulator. 31. If you want to change the infrared methane channels calibration gas value, follow Step 15 - Step 24 above beginning with the infrared methane Calibration Gas Value Screen below instead of the standard channel Calibration Gas Value Screen.
DISPLAY ADJUST NO button to return to the infrared methane Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 33. Screw the infrared methane calibration cylinder onto the demand flow regulator. 34. Connect the tubing from the regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for 90 seconds. 35. Press and release the POWER ENTER RESET button to set the span adjustment for the infrared methane channel to the programmed value. 36. If the infrared methane channel passed calibration, the following screen sequence occurs.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
If the infrared methane channel cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and indicates that the infrared methane sensor failed to calibrate.
channel again. If the failure continues, investigate the cause. See Troubleshooting on page 67 37. Disconnect the tubing from the probe. 38. Unscrew the demand flow regulator from the calibration cylinder. 39. Use the RANGE SHIFT button to place the cursor next to the NORMAL OPERATION menu option, then press and release the POWER ENTER RESET button to return to Measuring Mode.
Maintenance
This section includes a procedure to replace an infrared methane sensor.
223 Maintenance
until it bottoms out. 13. Line up the holes in the infrared methane sensor bracket with the two standoffs on the infrared methane chamber. 14. Install the two sensor bracket screws. 15. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, it may be damaged when the top case is re-installed. 16. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 17. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 18. Calibrate the infrared methane channel as described in Infrared Methane Calibration on page 215.
Parts List
Table 28: Infrared CH4 EAGLE 2 Parts List
Part Number Description
Infrared CH4 sensor cable Infrared CH4 sensor, 0-100 %LEL or 0-100 %LEL/5.0-100.0 %vol autoranging Calibration cylinder, 50 %LEL CH4 in air, 34 liter steel Calibration cylinder, 50 %LEL CH4 in air, 103 liter steel Calibration cylinder, 50 %vol CH4 in N2, 34 liter steel Calibration cylinder, 50 %vol CH4 in N2, 58 liter steel
1 %LEL
10 %LEL
50 %LEL
N/A
N/A
10 %LEL N/A
50 %LEL N/A
N/A N/A
N/A N/A
Target Gases
The infrared HC sensor is a general hydrocarbon sensor. It is setup for and factory-calibrated to isobutane.
Description
Table 29 and Table 30 above list the available infrared hydrocarbon sensor configurations. The infrared hydrocarbon sensor is a smart sensor that stores the target gas. The infrared hydrocarbon sensor is installed in a single sensor flow chamber which is located in the area next to the standard 4-sensor flow chamber. This area can accommodate up to three single sensor flow chambers. Figure 40 above illustrates a typical infrared hydrocarbon sensor location in front of the pump. The infrared hydrocarbon flow chamber may also be installed in one of the other two sensor chamber locations depending on the particular version of the EAGLE 2. Some infrared hydrocarbon instrument configurations do not include the 4-sensor flow chamber.
225 Overview
CO Sensor
Description 226
ENABLED
2. Use the AIR YES or RANGE SHIFT button to toggle to the desired setting.
227 Start Up and Normal Operation EAGLE 2 Operators Manual
If set to DISABLED, the gas reading for the catalytic LEL channel will be replaced by dashes (---). 3. Press and release POWER ENTER RESET to save the setting and return to the main menu. 4. Use the DISPLAY ADJUST NO button to scroll through the rest of Display Mode and enter Normal Operation.
5. The Calibration Mode Screen displays with the cursor next to AUTO CALIBRATION.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
6. Move the cursor to the PERFORM AIR ADJUST menu item by using the RANGE SHIFT button.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
7. Press and release the POWER ENTER RESET button. The following screen appears.
8. Press and release the AIR YES button to continue. If you do not want to continue, press the DISPLAY ADJUST NO button and the unit will return to the Calibration Mode Screen.
9. The EAGLE 2 will indicate that it is adjusting the zero reading for a few seconds, then indicate that the operation is complete before returning to the Calibration Mode Screen.
CALIBRATION MODE AUTO CALIBRATION SINGLE CALIBRATION > PERFORM AIR ADJUST NORMAL OPERATION
10. Install the demand flow regulator onto the multi-gas calibration cylinder. 11. Connect the sample tubing to the demand flow regulator. 12. Install the probe on the EAGLE 2 inlet fitting. Make sure the probe is complete with internal O-ring and membrane and that the two halves of the probe are tightened firmly together to avoid leaks that can affect the calibration. See Figure 20, Replacing the Hydrophobic Filter Disk & Oring on page 72 for an illustration of the internal parts of the probe. 13. Move the cursor next to the AUTO CALIBRATION menu item by using the AIR YES button.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
14. Press and release the POWER ENTER RESET button to display the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
The gas concentrations displayed in the Calibration Gas Values Screen must match the gas concentrations listed on the 4-gas calibration cylinder. If all concentrations match, go to Step 25. If one or more concentrations do not match, continue with Step 15. If you do not want to continue with the calibration, press and release the DISPLAY ADJUST NO button to return to the Calibration Mode Screen. NOTE: The RKI 4-gas cylinder typically contains 12% O2 by volume. When using the auto calibration method, be sure to set the OXY auto calibration value to agree with the concentration listed on the cylinders label, not zero. 15. To adjust the values on the screen, press and hold the RANGE SHIFT button, then press the DISPLAY ADJUST NO button and release both. The following screen appears with the cursor next to CH4.
ADJUST AUTO CALIBRATION VALUES > CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm
16. Place the cursor next to the channel whose gas value you want to change using the AIR YES and RANGE SHIFT buttons. 17. Press and release the POWER ENTER RESET button to select the channel. The calibration gas value begins to flash. 18. Use the AIR YES and RANGE SHIFT buttons to adjust the calibration gas setting to the desired value. 19. Press and release the POWER ENTER RESET button to save the change. The calibration gas value stops flashing. 20. Repeat Step 16 through Step 19 for any other channels that need to be changed.
21. When you are done adjusting the calibration gas values, move the cursor down past the bottom of the screen next to END.
22. Press and release the POWER ENTER RESET button. The following screen appears.
DO YOU WANT TO STORE NEW VALUE(S) IN MEMORY FOR FUTURE CALIBRATIONS? PRESS YES OR NO
23. If you select YES by pressing and releasing the AIR YES button, the changes that you made will be saved in the EAGLE 2s memory as the new auto calibration gas values. If you select NO by pressing and releasing the DISPLAY ADJUST NO button, the changes you made will be used for any calibrations performed during the current operating session only. The EAGLE 2 will delete the changes when the unit is turned off and will load the previous set of auto calibration values when it is turned on again. 24. When you make your selection and press the desired button, the unit returns to the Calibration Gas Values Screen.
CAL GAS VALUES CH4 50 %LEL OXY 12.0 vol% H2S 25.0 ppm CO 50 ppm ENTER TO BEGIN CAL
25. Press and release the POWER ENTER RESET button to proceed to the Calibration In Process Screen with CAL IN PROCESS flashing.
CAL IN PROCESS CH4 0 %LEL OXY 20.9 vol% H2S 0.0 ppm CO 0 ppm ENTER WHEN DONE
If you do not want to proceed with the calibration, press and release the DISPLAY ADJUST NO button to return to the Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 26. Connect the tubing from the demand flow regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 27. Press and release the POWER ENTER RESET button to set the span adjustment for each channel to the programmed values. 28. If all channels passed calibration, the following screen sequence occurs.
If any of the sensors cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and lists the sensor(s) that failed to calibrate. In the example below, the oxygen and H2S channels failed calibration. The other sensors calibrated normally.
FAIL SENSOR < > <OXY> <H2S> < > ENTER TO CONTINUE
The buzzer and alarm LEDs activate in a double pulsing pattern. Press and release the POWER ENTER RESET button to reset the alarm and continue to the Calibration Value Screen for the infrared hydrocarbon channel. After calibrating the infrared hydrocarbon channel by following the instructions below, attempt to calibrate the standard channels again. If the failure continues, investigate the cause. See Troubleshooting on page 67 29. Remove the tubing from the rigid tube on the probe. 30. Unscrew the 4-gas cylinder from the demand flow regulator. 31. If you want to change the infrared hydrocarbon channels calibration gas value, follow Step 15 - Step 24 above beginning with the infrared hydrocarbon Calibration Gas Value Screen below instead of the standard channel Calibration Gas Value Screen.
DISPLAY ADJUST NO button to return to the infrared hydrocarbon Cal Gas Values Screen. If you do want to continue with the calibration, proceed to the next step. 33. Screw the infrared hydrocarbon calibration cylinder onto the demand flow regulator. 34. Connect the tubing from the regulator to the rigid tube on the probe. Allow the EAGLE 2 to draw gas for one minute. 35. Press and release the POWER ENTER RESET button to set the span adjustment for the infrared hydrocarbon channel to the programmed value. 36. If the infrared hydrocarbon channel passed calibration, the following screen sequence occurs.
CALIBRATION MODE > AUTO CALIBRATION SINGLE CALIBRATION PERFORM AIR ADJUST NORMAL OPERATION
If the infrared hydrocarbon channel cannot be adjusted to the proper value, a screen displays that indicates a calibration failure and indicates that the infrared hydrocarbon sensor failed to calibrate.
the Calibration Mode Screen. Attempt to calibrate the infrared hydrocarbon channel again. If the failure continues, investigate the cause. See Troubleshooting on page 67 37. Disconnect the tubing from the probe. 38. Unscrew the demand flow regulator from the calibration cylinder. 39. Use the RANGE SHIFT button to place the cursor next to the NORMAL OPERATION menu option, then press and release the POWER ENTER RESET button to return to Measuring Mode.
Maintenance
This section includes a procedure to replace an infrared hydrocarbon sensor.
Maintenance 236
12. Insert the sensor into the infrared hydrocarbon flow chamber and push it in until it bottoms out. 13. Line up the holes in the infrared hydrocarbon sensor bracket with the two standoffs on the infrared hydrocarbon chamber. 14. Install the two sensor bracket screws. 15. Confirm that the main PCB is seated in its slots and that its bottom edge is resting on the bottom of the bottom case. If the main PCB is not seated properly, it may be damaged when the top case is re-installed. 16. Make sure that the top case gasket is fully seated in its groove and carefully put the top case back on the bottom case. If you have any difficulty mating the top and bottom cases, inspect the placement of the main PCB and the placement of the top case gasket. 17. Turn the EAGLE 2 upside down and tighten the three case screws to secure the top case to the bottom case. 18. Calibrate the infrared hydrocarbon channel as described in Infrared Hydrocarbon Calibration on page 228.
Parts List
Table 31: Infrared HC EAGLE 2 Parts List
Part Number Description
Infrared HC sensor cable Infrared HC sensor, 0-100 %LEL/5.0-100.0 %vol autoranging Calibration cylinder, 50 %LEL isobutane in air, 34 liter steel Calibration cylinder, 50 %LEL isobutane in air, 103 liter steel
DISABLED
4. Press and release the AIR YES or RANGE SHIFT button to toggle the setting to ENABLED. 5. Press and release the POWER ENTER RESET button. The unit will save the setting and proceed to the next menu item.
Overview 238
6. You will note that if methane elimination is enabled, the Catalytic Sensor Relative Response screen no longer appears even if the relative response feature in Setup Mode is turned on. While methane elimination is enabled, the Catalytic Sensor Relative Response screen will not appear in Display Mode even if the relative response feature in Setup Mode is enabled. 7. Continue to press the DISPLAY button until the Measuring Mode screen appears.
ME
When the instrument is reading in methane elimination, an ME appears in line with the catalytic combustible channel reading. 8. Allow 2 minutes for the combustible sensor to stabilize. 9. Perform a demand zero. See Performing a Demand Zero on page 27 for instructions. 10. Monitor for the target gas. 11. If you wish to monitor for any other gas while in methane elimination mode, a conversion factor must be taken into consideration. With the EAGLE 2 calibrated to hexane, use Table 32 below to determine the concentrations of other target gases. Multiply the display reading by the factor in the appropriate column to determine the actual reading for that gas. For example, if you are using the EAGLE 2 in methane elimination mode to detect isobutane and the display reads 10% LEL, the actual isobutane reading is 10% x 0.59 = 5.9% LEL isobutane.
Table 32: Methane Elimination Mode Conversion Factors (Hexane Calibration)
Target Gas LEL Factor PPM Factor Target Gas LEL Factor PPM Factor
0.58 1.01
*
1.34 0.84
Target Gas
LEL Factor
PPM Factor
Target Gas
LEL Factor
PPM Factor
1-Butyl Alcohol Cyclohexane Cumene Ethylene Dichloride Ethyl Alcohol Ethyl Chloride Ethyl Acrylate Hexane Hydrogen
Methyl Acrylate Methyl Ethyl Keytone Methyl Isobutyl Keytone Mixed Xylenes Nonane Pentane Propane Styrene Toluene Vinyl Acetate Monomer
0.83 1.04 1.30 1.36 1.66 0.54 Low response 1.74 1.25 0.92
2.11 1.32 1.42 1.36 1.21 0.74 Low response 1.42 1.25 2.17
WARNING: The EAGLE 2s alarms are initiated by the display reading, not the factored reading. If you are monitoring for isobutane as in the above example and the low alarm is set for 10% LEL, the EAGLE 2 will initiate a low alarm at 5.9% LEL isobutane (display reading of 10% LEL). 12. To return to full response mode, return to the Methane Elimination Mode screen in Display Mode and press and release the AIR YES or RANGE SHIFT button to toggle the setting to DISABLED. 13. Press and release the POWER ENTER RESET button. The unit will save the setting and proceed to the next menu item. 14. Continue to press the DISPLAY button until the Measuring Mode screen appears.
indicating that the unit is measuring in full response mode. 15. Allow 2 minutes for the combustible sensor to stabilize before monitoring the target gas. 16. Perform a demand zero. See Performing a Demand Zero on page 27 for instructions. 17. Monitor for the target gas. NOTE: The EAGLE 2 retains the methane elimination mode setting when it is turned off. The methane elimination mode setting, ENABLED or DISABLED, will remain in effect until it is changed in Display Mode. So if methane elimination mode is enabled when you turn off the EAGLE 2, it will remain enabled when you turn the EAGLE 2 on again.
Calibration
The EAGLE 2 stores calibration data for the instrument both in methane elimination mode and in full response mode. When using the instrument for applications where methane elimination mode is used, it is most common to calibrate to hexane. If you are planning to use the EAGLE 2 in methane elimination mode, RKI Instruments, Inc. recommends that you setup and calibrate the instrument to hexane in both full response and methane elimination mode unless your application requires a different setup and calibration. See Configuring the Combustible Gas on page 103 for instructions to setup the catalytic combustible channel gas. CAUTION: The EAGLE 2 catalytic combustible sensor experiences a significant gas response drop when it is changed from full response mode to methane elimination mode. The EAGLE 2 must be calibrated in both full response mode and in methane elmination mode to account for this. To properly calibrate the instrument, do the following: 1. With the EAGLE 2 catalytic combustible channel set up for hexane, perform a demand zero and a calibration while in full response. See Chapter 4: Calibration Mode on page 54 for instructions. 2. Enable methane elimination in Display Mode. 3. Allow the unit to stabilize for 2 minutes. 4. Perform a demand zero and a calibration while in methane elimination mode. See Chapter 4: Calibration Mode on page 54 for instructions.
241 Calibration
Overview 242
will not appear as a choice as shown in Step 3 below and NORMAL MODE and LEAK CHECK MODE will be the only choices displayed. In this case, see Turning On the EAGLE 2 on page 22 or Turning On the EAGLE 2, Leak Check Mode on page 251. 1. Connect the sample hose to the EAGLE 2s quick connect inlet fitting. 2. Connect the bar hole probe to the sample hoses quick connect fitting. 3. Press and briefly hold down the POWER ENTER RESET button. Release the button when you hear a beep. 4. The LCD will show the following screen for about ten seconds.
GAS MONITOR
EAGLE 2
5. The Battery Voltage Screen appears for a few seconds.
7. The cursor will flash in front of NORMAL MODE. Use the RANGE SHIFT button to move the cursor next to BAR HOLE MODE. 8. With Bar Hole Mode selected, press and release the POWER ENTER RESET button to begin the Bar Hole Mode startup sequence.
243 Start Up, Bar Hole Mode EAGLE 2 Operators Manual
NOTE: If no button is pressed for 20 seconds, the unit will proceed into whichever mode has the cursor in front of it. 9. The Active Gases Screen appears for a few seconds indicating which channels are active and their target gas.
10. The gas alarm setpoints are displayed by three screens in sequence: the Low Alarm Screen, High Alarm Screen, and STEL/TWA Alarm Screen. Each screen remains on the LCD for three seconds.
A CH4 10 %LEL L L OXY 19.5 vol% O A H2S 10.0 ppm WR CO 25 ppm M CH4 10 vol% S A CH4 50 %LEL HL OXY 23.5 vol% I A H2S 30.0 ppm GR CO 50 ppm CH4 50 vol% HM S ALARMS STEL & TWA H2S(ppm) 15.0 10.0 CO (ppm) 200 25 CH4(vol%) OFF OFF
11. After the alarm screens, if CAL REMINDER is turned on, the screen that appears next depends on how CAL PAST DUE ACT is set in the Setup Mode Menu (see Updating the Calibration Past Due Action Setting on page 118).
If the unit is due for calibration and CAL PAST DUE ACT is set to CONFIRM TO CAL, then the following screen displays and the buzzer sounds in a double pulsing pattern.
NOTIFICATION ONLY, then the following alert screen displays and the buzzer sounds in a double pulsing pattern.
9/12/2008 15:00:00
13. If USER/STATION ID is turned on (see Turning the User/Station ID Function On or Off on page 112), the ID Screen appears for a few seconds.
FAILED SENSOR(S) < > < > < > < > <CH4> ENTER TO CONTINUE
If one of the combustible sensors, LEL or TC, fails, it is not possible to enter Bar Hole Mode. Press and release the POWER ENTER RESET button to acknowledge the failure and return to the Mode Select Screen. Replace the failed sensor as soon as possible. If the oxygen sensor fails, press and release the POWER ENTER RESET button to acknowledge the failure and continue to Bar Hole Mode. The gas reading for the oxygen sensor will be replaced by XXX. Replace the failed sensor as soon as possible. If any other sensor that is installed fails, press and release the POWER ENTER RESET button to acknowledge the failure and continue to Bar Hole Mode. Replace the failed sensor(s) as soon as possible for use in Normal Mode. 15. The EAGLE 2 is now operating in Bar Hole Mode. The pump is off and the following screen appears.
BAR HOLE MODE CH4 0 %LEL OXY 20.9 vol% ENTER: MEASURE ADJUST: PURGE
Only the methane and oxygen channels are displayed. NOTE: The units for the methane channel can be changed using the RANGE SHIFT button. Press and release the RANGE SHIFT button until the desired units, ppm, LEL, or vol%, are displayed. NOTE: If measuring the combustible gas in ppm units, for maximum sensor stability, allow 3-5 minutes for the sensor to warm up. The small increment size in the lower range of a ppm measurement can cause instability if the unit is not properly warmed up.
3. Press and hold the AIR YES button. The display will indicate that a demand zero is taking place and prompt you to hold the AIR YES button. 4. Continue to hold the AIR YES button until the display prompts you to release it. The EAGLE 2 will set the fresh air reading for the CH4 and oxygen channels. Start up is complete and the unit is now ready for bar hole testing.
3. Insert the probe into the bar hole and press and release the ENTER button. The pump will turn on, the display will indicate MEASURING... below the oxygen reading, and the sample period will begin with the sample period counting down in seconds in the lower right corner of the display. The CH4 channel will be displayed in vol%.
BAR HOLE MODE CH4 0 vol% OXY 20.9 vol% MEASURING... 30 SEC
4. After 15 seconds of sampling, if the CH4 reading is less than 5 vol%, the CH4 channel will automatically begin displaying in the units you selected earlier. If you selected the methane channel to be displayed in vol%, then after 15 seconds, the reading will remain in vol%. 5. At the end of the sample period, the pump will shut off and the audible alarm will sound, then the peak methane reading and the minimum oxygen reading for the sample period will be displayed.
BAR HOLE MODE P E A K CH4 0 vol% OXY 20.9 vol% ENTER: MEASURE ADJUST: PURGE
6. If a high concentration of methane is encountered, a fresh air purge can be performed to purge the hose, probe and EAGLE 2 of gas before the next bar hole test. To perform a purge, do the following: Remove the probe from the barhole so the instrument will draw fresh air.
Press and release the DISPLAY ADJUST NO button. The display will now indicate FRESH AIR PURGE . . . below the oxygen reading and the purge time will begin counting down from 30 seconds in the lower right corner of the display.
BAR HOLE MODE CH4 0 vol% OXY 20.9 vol% FRESH AIR PURGE... 30 SEC
After 15 seconds of sampling, if the CH4 reading is less than 5 vol%, the CH4 channel will automatically begin displaying in the units you selected earlier. Since performing a fresh air purge draws fresh air, the display units should always switch to the previously selected units. If you selected the methane channel to be displayed in vol%, then after 15 seconds, the reading will remain in vol%. When the purge is complete, the screen will return to the initial Bar Hole Mode screen.
BAR HOLE MODE CH4 0 vol% OXY 20.9 vol% ENTER: MEASURE ADJUST: PURGE
7. If other bar holes will be tested, proceed to the next bar hole and repeat Step 3 - Step 6. 8. To cancel a bar hole measurement or fresh air purge that is in progress, press and release the DISPLAY ADJUST NO button. 9. To exit Bar Hole Mode and return to the Mode Select Screen at any time, press and hold the RANGE SHIFT button for 5 seconds.
251 Overview
4. The LCD will show the following screen for about ten seconds.
GAS MONITOR
EAGLE 2
5. The Battery Voltage Screen appears for a few seconds.
7. The cursor will flash in front of NORMAL MODE. Use the RANGE SHIFT button to move the cursor next to LEAK CHECK MODE. 8. With Leak Check Mode selected, press and release the POWER ENTER RESET button to begin the Leak Check Mode startup sequence. NOTE: If no button is pressed for 20 seconds, the unit will proceed into whichever mode has the cursor in front of it. 9. The Active Gases Screen appears for a few seconds indicating which channels are active and their target gas.
10. The gas alarm setpoints are displayed by three screens in sequence: the Low Alarm Screen, High Alarm Screen, and STEL/TWA Alarm Screen. Each screen remains on the LCD for three seconds.
A CH4 50 %LEL HL OXY 23.5 vol% I A H2S 30.0 ppm GR CO 50 ppm HM CH4 50 vol% S A CH4 10 %LEL L L OXY 19.5 vol% O A H2S 10.0 ppm WR CO 25 ppm M CH4 10 vol% S ALARMS STEL & TWA H2S(ppm) 15.0 10.0 CO (ppm) 200 25 CH4(vol%) OFF OFF
11. After the alarm screens, if CAL REMINDER is turned on, the screen that appears next depends on how CAL PAST DUE ACT is set in the Setup Mode Menu (see Updating the Calibration Past Due Action Setting on page 118). If the unit is due for calibration and CAL PAST DUE ACT is set to CONFIRM TO CAL, then the following screen displays and the buzzer sounds in a double pulsing pattern.
done with the calibration and exit Calibration Mode, the unit will begin the startup sequence. If the calibration was successful, the screen above will not appear again until the unit is due for calibration. If the calibration was not successful, the screen above will again appear in the startup sequence. To continue without performing a calibration, press and release the DISPLAY ADJUST NO button. If the unit is due for calibration and CAL PAST DUE ACT is set to MUST CALIBRATE, then the following screen displays and the buzzer sounds in a double pulsing pattern.
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13. If USER/STATION ID is turned on (see Turning the User/Station ID Function On or Off on page 112), the ID Screen appears for a few seconds.
ENTER TO CONTINUE
If the catalytic combustible sensor fails, it is not possible to enter Leak Check Mode. Press and release the POWER ENTER RESET button to acknowledge the failure and return to the Mode Select Screen. Replace the failed sensor. If any other sensor that is installed fails, press and release the POWER ENTER RESET button to acknowledge the failure and continue to Leak Check Mode. Change the failed sensor(s) as soon as possible for use in Normal Mode.
15. The EAGLE 2 is now operating in Leak Check Mode. The pump is on and the following screen appears.
NOTE: For maximum sensor stability, allow 3-5 minutes for the sensor to warm up. The small increment size in the lower range of a ppm measurement can cause instability if the unit is not properly warmed up.
Leak Testing
In Leak Check Mode, the EAGLE 2 only displays combustible gas readings. The readings are displayed in both numerical and bar graph form. The bar graph displays readings up to 5,000 ppm while the numerical indicator displays readings up to 50,000 ppm in the following increments: 5 ppm increments from 0 ppm to 200 ppm 10 ppm increments from 200 ppm to 1,000 ppm 50 ppm increments from 1,000 ppm to 10,000 ppm
As the gas concentration increases from 0 ppm, the alarm LEDs begin to blink in unison with the buzzers pulsing. The blinking/pulsing rate increases as the gas reading increases. If desired the buzzer can be turned off in Leak Check Mode. In a low-light environment, press and release any of the buttons to turn on the display backlight. See Updating the Backlight Delay Setting on page 114 to program backlight duration. If CONFIRMATION BEEP is turned on in the Setup Mode menu, the EAGLE 2 beeps once every 15 minutes to confirm that its operating.
Locating a Leak
1. Start up the EAGLE 2 as described above in Start Up, Leak Check Mode on page 251. 2. Move the probe tip back and forth along the area where a leak is suspected. 3. Observe the display reading. If the gas level increases, the numerical reading will increase, the bar graph level will increase to the right, and the beeping and buzzer pulsing frequency will increase. 4. Use the increasing and decreasing of the reading to locate the leak point. 5. To exit Leak Check Mode and return to the Mode Select Screen at any time, press and hold the RANGE SHIFT button for 5 seconds.
LEL Oxygen
Description
The tank tester model has an additional socket on the front on the housing to accommodate connection of the float probe assembly.
259 Description
Plug
To use the float probe assembly: CAUTION: Drawing water, gasoline, or other liquids into the EAGLE 2 will cause damage. 1. Attach the quick connect fitting to the EAGLE 2s inlet fitting. 2. Insert the plug into the socket that is adjacent to the IR port. 3. Lower the probe into the tank or vessel. Lower the probe very slowly, keeping th efloat switch vertical, to allow the float switch to activate if necessary.
Description 260
dilutes at a ratio of 1:1 (one part air to one part sample). The dilution fitting is not an integral part of the float probe assembly and must be installed on the EAGLE 2 inlet fitting before installing the float probe assembly when measuring gas in an inert atmosphere. To attach the dilution fitting: 1. Attach the dilution fittings male quick connect fitting to the EAGLE 2s inlet fitting. 2. Attach the float probe assembly to the opposite end of the dilution fitting. NOTE: When using the dilution fitting, multiply the combustible gas reading (LEL or PPM) by 2 to determine the actual combustible gas concentration. Always remove the dilution fitting or seal the dilution hole with your finger to measure for oxygen.
Start Up
When the EAGLE 2 Tank Tester model is turned on, Connect Float Probe displays before the Battery Voltage Screen. If you wish to use the instrument in Tank Tester Mode, connect the float probe assembly if it is not already connected and make sure that the float probe assembly is hanging vertically and that the float device is located at the bottom of the probe. To use the instrument as a normal EAGLE 2, connect the standard probe and adjust the oxygen channel alarm settings in Setup Mode.
Alarms
The EAGLE 2 Tank Tester model has special factory settings for the two oxygen alarms. They are factory-set at 5.0% by volume (rising) and 19.5% by volume (falling). The rising alarm is used to monitor a purged vessel to alert you to a rising oxygen condition. The falling alarm is generally used for confined space entry to warn you of dangerously low breathing levels. ANY oxygen level is either above or below one of these alarm levels, so the EAGLE 2 Tank Tester version will go into alarm when first turned on. To silence the alarm, press the RESET button. The audible alarm silences, but the alarm lights continue to flash and the display screen continues to indicate an oxygen alarm. If one of the alarm
261 Start Up
levels is newly exceeded, the audible alarm sounds again. To eliminate an oxygen alarm that is not being used: Either the rising or falling oxygen alarm can be turned off in Setup mode (see Updating the Alarm Point Settings on page 109). Turning off the alarm eliminates the alarm lights and display of an unnecessary alarm.
Calibration
Use a hexane calibrating source to calibrate the combustible gas LEL range. Use a 100% nitrogen calibrating source to set the zero reading for the oxygen channel. RKI Instruments, Inc. recommends using the Single Calibration method to calibrate the EAGLE 2 Tank Tester model. See Chapter 4: Calibration Mode on page 54. The instructions in that section call for calibrating the EAGLE 2 with methane. When following these instructions, be sure to calibrate with hexane rather than methane. NOTE: Do not calibrate the EAGLE 2 Tank Tester model with the dilution fitting attached to the inlet fitting.
Parts List
Table 34 lists part numbers for replacement parts and accessories of the EAGLE 2s Tank Tester model.
Table 34: Parts List: EAGLE 2 Tank Tester Model
Part Number Description
80-0405RK 80-0802RK
Calibration 262
Warranty
RKI Instruments, Inc. warrants the EAGLE 2 sold by us to be free from defects in materials, workmanship, and performance for a period of two years from the date of shipment from RKI Instruments, Inc. This includes the instrument and the original sensors. Replacement parts are warranted for 1 year from the date of their shipment from RKI Instruments, Inc. Any parts found defective within their warranty period will be repaired or replaced, at our option, free of charge. This warranty does not apply to those items which by their nature are subject to deterioration or consumption in normal service, and which must be cleaned, repaired, or replaced on a routine basis. Examples of such items are:
Absorbent cartridges Filter elements, disks, or sheets Pump diaphragms and valves
Warranty is voided by abuse including mechanical damage, alteration, rough handling, or repair procedures not in accordance with the instruction manual. This warranty indicates the full extent of our liability, and we are not responsible for removal or replacement costs, local repair costs, transportation costs, or contingent expenses incurred without our prior approval.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES AND REPRESENTATIONS, EXPRESSED OR IMPLIED, AND ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF RKI INSTRUMENTS, INC. INCLUDING BUT NOT
LIMITED TO THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL RKI INSTRUMENTS, INC. BE LIABLE FOR INDIRECT, INCIDENTAL, OR CONSEQUENTIAL LOSS OR DAMAGE OF ANY KIND CONNECTED WITH THE USE OF ITS PRODUCTS OR FAILURE OF ITS PRODUCTS TO FUNCTION OR OPERATE PROPERLY.
This warranty covers instruments and parts sold to users only by authorized distributors, dealers, and representatives as appointed by RKI Instruments, Inc. We do not assume indemnification for any accident or damage caused by the operation of this gas monitor and our warranty is limited to replacement of parts or our complete goods.
263 Warranty