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Instruction Manual: Model 7SL High/Low Limitrol

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INSTRUCTION MANUAL

1262-IN-023-0-02 January 1998

Model 7SL High/Low Limitrol

1/16 DIN FOUR DIGIT HIGH/LOW LIMITROL

Model 0 7 S L - 9 1
Field No. 1 2 3 4

5 6 7 8 9

10 1112 13 14 15

00-0-00

Field 1 through 4. BASE 07SL - Limitrol (High/Low Limit. Shipped as high limit) Field 5. INPUT 9 - TC Types J, K, T, E, N, S, R, B, L, U, G, D and Platinel II; and Pt 100 RTD; 0 to 20 mAdc and 4 to 20 mAdc 0 to 60 mVdc and 12 to 60 mVdc 0 to 5 Vdc or 1 to 5 Vdc 0 to 10 Vdc or 2 to 10 Vdc Note: All inputs are factory calibrated and selectable by jumper. Factory set at Type J. Field 6. OUTPUT (High/Low Limit) 1 - Relay (Form C)

Field 7, 8. ALARMS, OPTIONS 00 -None 10 -One alarm - Relay Form A 11 -One alarm - Relay Form A, plus RS-485 and one logic input. Note: When code 11 is specified, instrument length is 4.8 inches (122 mm) Field 9. POWER SUPPLY 3 - 100 to 240 Vac 5 - 24 Vac/Vdc Field 10. Mounting 0 - Panel Mount R - Wall or Rail Mount Fields 11 through 15. RESERVED

Congratulations . . . on your purchase of one of the easiest to configure controllers on the market. After a three step configuration procedure, your process will be up and running. If for any reason you encounter difficulty with the controller set-up, please call your supplier. Guide to Simple Set-up To set-up the controller, only four steps are required: 1. Wire the instrument. 2. Configure the instrument. 3. Check the operating mode parameters.

U npack th e In strum en t

W irin g

Co nfig uratio n

O perating Param eters

SV

Contents
Mounting Requirements ...................................... 5 Panel Mount Controller --------------------- 5 Mounting Requirements ...................................... 6 Wall or Rail Mount Controller -------------- 6 Dimensions and Rear Terminal Blocks ................ 7 Panel Mount Controllers ------------------- 7 Dimensions ......................................................... 9 Wall or Rail Mount Controller -------------- 9 Wiring Guidelines .............................................. 10 Panel Mount Controllers ------------------ 10 Wiring Guidelines .............................................. 14 Wall or Rail Mount Controller ------------- 14 Preliminary Hardware Settings .......................... 20 Configuration Procedure ................................... 21 Operating Mode ................................................ 27 Error Messages ................................................. 32 General Specifications ...................................... 33 Calibration ......................................................... 37 Calibration Parameters -------------------- 38 Procedure ---------------------------------- 38 Maintenance...................................................... 44 APPENDIX A ..................................................... 45 Default parameters ------------------------ 45 APPENDIX B ..................................................... 47 Thermocouple Compensating Cable Color Codes. ------------------------------- 47

CAUTION! USE WIRE SUITABLE FOR 75 MINIMUM

NOTES: For supply connections use 16 AWG or larger wires rated for at least 75 C Use copper conductors only Class 2 wiring must be separated a minimum of 1/4 inch from any class 1 conductor

IMPORTANT! Terminal identification of the panel mount controller is different from terminal identification of the wall/rail mount controller! This manual contains wiring instructions for both types of controllers. Be sure to follow the instructions that pertain to the controller you are using.

Mounting Requirements
Panel Mount Controller
Select a mounting location with the following characteristics: 1) Minimal vibration. 2) An ambient temperature range between 0 and 50C (32 and 122 F). 3) Easy access to the rear of the instrument. 4) No corrosive gases (sulfuric gas, ammonia, etc.). 5) No water or other fluid (i.e. condensation). 6) Relative humidity of 20% to 80% non condensing.

The instrument can be mounted on a panel up to 15 mm (0.591 in) thick with a square cutout of 45 x 45 mm (1.772 x 1.772 in). For outline refer to Dimensions and Panel Cutout. Panel surface texture must be better than 248 microinches. The instrument is shipped with a rubber panel gasket (50 to 60 Sh). To assure the IP65 and NEMA 4 protection, insert the panel gasket between the instrument and the panel as shown below. Install the instrument as follows: 1) Insert the instrument in the gasket. 2) Insert the instrument in the panel cutout. 3) Pushing the instrument against the panel, insert the mounting bracket. 4) Torque the mounting bracket screws between 0.3 and 0.4 Nm (2.66 and 3.54 lbf-in). 5) To insure NEMA 4X/IP65 protection, make sure the instrument does not move within the cutout .

B ra c ke t

Panel

G a sk e t

Mounting Requirements

Wall or Rail Mount Controller


WARNING: 1) The correct functionality of these instruments is guaranteed only if transport, storage, installation, wiring, working condition and maintenance are executed in compliance with this manual. 2) The protection degree of these instruments is equal to IP 20 (according to IEC529) and they are connected to dangerous power lines, for these reasons: - installation, wiring and maintenance must be executed by qualified personnel; - all warnings contained in this manual must be complied. 3) The safety requirements for Permanently Connected Equipment say: - a switch or circuit-breaker shall be included in the building installation; - It shall be in close proximity to the equipment and easy to reach for the operator; - it shall be marked as the disconnecting device for the equipment. NOTE: a single switch or circuit-breaker can drive more than one instrument. 4) Before to executing any operation on the connections, disconnect the instrument from the power line by the circuit breaker. GENERAL ASSEMBLING INFORMATION Select a cleaned location, easy to reach, where minimum vibrations are present and the ambient temperature is within 0 and 50 C (32 and 122 F). These instruments can be mounted either on wall or DIN rail.
6

RAIL MOUNTING Use DIN rail in accordance with EN 50 022 (35 x 7.5 mm or 35 x 15 mm).

WALL MOUNTING For wall mounting, use the (A) holes. In this case it is advisable to use four M4 screws with a torque of 1Nm.
(A )

R ES ET AL M

6/

(A )

Dimensions and Rear Terminal Blocks


Panel Mount Controllers
1 .8 9 (4 8)
Dimensions shown in inches; millimeters in parenthesis

B arber-C o l ma n F 2 .4 7 (6 2.8 )

7 SL

Without RS-485

With RS-485

4 .1 3 (1 0 5)

4.80 (12 2)
7

PANEL CUTOUT

Dimensions shown in inches; millimeters in parentheses

2.9 5 (7 5)

2.36 (60 )

1.77 2 + 0.024 , -0 (4 5 + 0.6, - 0)

1 .7 72 + 0 .024, -0 (45 + 0 .6 , -0 )

Dimensions

Wall or Rail Mount Controller

Dimensions shown in inches; millimeters in parentheses


5 (0 .20 in .) 5 .6 7 (1 44 ) fo r m o dels w ith se rial interf ace 5 (1 2 7) for m odels w itho u t se rial interf ace

2 .2 6 (5 7.5 )

4 .1 7 (1 06 .)

1 .8 1 (4 6)

0 .2 0 (5.)

RE SE T AL M

1 .89 (4 8) 3 .7 8 (9 6)
7 SL

0.1 8 (4.5 ) 1.69 (4 3)

Wiring Guidelines
A) Measuring Inputs

RTD INPUT -- Panel Mount Controller

Panel Mount Controllers

RTD

RTD

NOTE: Any external components (like Zener diodes, etc.) connected between sensor and input terminals may cause errors in measurement due to excessive and/or not balanced line resistance or possible leakage currents. TC Input

8 + 10 _ 9 Shield + 10 _ 9 Shield 10
Thermocouple Input Wiring NOTE: 1) Do not run input wires with power cables. 2) For TC wiring use proper compensating cable, preferably shielded (see Appendix B). 3) Shielded cable should be grounded at one end only.

10

10

RTD Input Wiring NOTE: 1) Dont run input wires with power cables. 2) Pay attention to the line resistance; a high line resistance may cause measurement errors. 3) When shielded cable is used, it should be grounded at one side only to avoid ground loop currents. 4) Resistance of the 3 wires must be the same. LINEAR INPUT - Panel Mount Controller

+ _

mA, mV or V

Shield mA, mV, and V Inputs Wiring


10

10

+ _ G mA, mV and V Inputs Wiring mA mV or V

- Use an external dry contact capable of switching 0.5 mA, 5 Vdc. - The instrument needs 100 ms to recognize a contact status variation. - The logic inputs are NOT isolated from the measuring input. C.1) Relay Outputs Panel Mount Controller NO - OUT 1 OUT 1 1 C - OUT 1 Class 1 2 NC - OUT 1 3 C 6 NO 7 The OUT 1 contact rating is 3A/250V AC on resistive load. The OUT 2 contact rating is 2A/250V AC on resistive load. The number of operations is 1 x 105 at specified rating. NOTES 1) To avoid electric shock, connect power line at the end of the wiring procedure. 2 ) For power connections use No 16 AWG or larger wires rated for at last 75 C. 3) Use cupper conductors only. 4) Dont run input wires with power cables. All relay contacts are protected by varistor against inductive load with inductive component up to 0.5 A.

NOTE: 1) Dont run input wires together with power cables. 2) Pay attention to the line resistance; a high line resistance may cause measurement errors. 3 ) When shielded cable is used, it should be grounded at one side only to avoid ground loop currents. 4) The input impedance is equal to: Less than 5 for 20 mAdc input Greater than 1 M for 60 mVdc input Greater than 400 K for 5 Vdc and 10 Vdc input B) Logic Input - Panel Mount Controller Logic input 14

OUT 2 Class 1 (Alarm)

15 This input is used for remote acknowledgement (reset). Safety note: - Do not run logic input wiring with AC power cables.
11

The following recommendations avoid serious problems which may occur, when relay outputs are used with inductive loads. C.2) Inductive Loads High voltage transients may occur switching inductive loads. Through the internal contacts these transients may introduce disturbances which can affect the performance of the instrument. For all the outputs, the internal protection (varistor) assures a correct protection up to 0.5 A of inductive component. The same problem may occurs when a switch is used in series with the internal contacts as shown below:
C

Anyway the cable involved in relay output wiring must be as far away as possible from input or communication cables. D) Serial Interface Panel Mounted Controllers SERIAL INTERFACE For units built with optional RS-485 communication RS-485 interface allows to connect up to 30 devices with one remote master unit. I N S T R U M E N T

11 12 13

A/A' B/B' COMMON

A'/A B'/B
M A S T E R

POWER LINE

LOAD

External Switch in Series with Internal Contact In this case it is recommended to install an additional RC network across the external contact as shown above. The value of capacitor (C) and resistor (R) are shown in the following table. LOAD (mA) C (F) R () P. (W) 1/2 2 2 OPERATING VOLTAGE 260 V AC 260 V AC 260 V AC

RS-485 Wiring
The cable length must not exceed 9/10 mile (1.5 km) at 9600 baud. NOTE: The following report describes the signal sense of the voltage appearing across the interconnection cable as defined by EIA for RS-485. a) The A terminal of the generator shall be negative with respect to the B terminal for a binary 1 (MARK or OFF) state. b) The A terminal of the generator shall be positive with respect to the B terminal for a binary 0 (SPACE or ON)
12

<40 mA 0.047 100 <150 mA 0.1 22 <0.5 A 0.33 47

I N S T R U M E N T I N S T R U M E N T

11

A/A'

A'/A M A S T E R

12

B/B'

B'/B

COMMON 13

11

12

13

RS-485 Wiring for Multiple Instruments


E) Power Line and Grounding Panel Mount Controllers N, L2

Use copper conductors only. Do not run input wires with power cables. Polarity does not matter for 24 Vdc wiring. The power supply input is NOT fuse protected. Please provide it externally. Power supply Type Current Voltage 24 V AC/DC T 500 mA 250 V 100/240 V AC T 125 mA 250 V When fuse is damaged, it is advisable to verify the power supply circuit, so that it is necessary to send back the instrument to your supplier. 7) Safety requirements for permanently connected equipment: - Include a switch or circuit-breaker in the installation. - Place switch in close proximity to the equipment and within easy reach of the operator. - Mark the switch as the disconnecting device for the equipment. NOTE: A single switch or circuit-breaker can drive more than one instrument. 8) When the NEUTRAL line is present, connect it to terminal 4. 9) To avoid shock and possible instrument damage, connect power last.

3) 4) 5) 6)

POWER SUPPLY 100 to 240 Vac 24 Vac/Vdc R (S,T), L1 N, L2 R (S,T), L1

NOTE: 1) Before connecting the power line, check that the voltage is correct (see Model Number). 2) For supply connections use 16 AWG or larger wires rated for at least 75 C.
13

Wiring Guidelines

Wall or Rail Mount Controller Connections have to be executed when the instrument is placed in its proper location.
Ou t 1 Ou t 2

T /C (b)
T /C(a )

T/C (a ): G, D, C , B , R, S T/C (b ): J, K , L , N , T, E, U , P la ti ne l

MEASURING INPUTS N OTE S: 1) Any external components (like zener barriers etc.) connected between sensor and input terminals may cause measurement errors due to excessive and/or not balanced line resistance or possible leakage currents. 2) The input accuracy is equal to +/- 0.2 % f.s.v. (**) +/- 1 dgt. @ 25 degrees Celsius of ambient temperature. (**) For TC input, the f.s.v. should be referenced to the higher f.s.v. of the TC selected. TC INPUT TC Type G, D, C, B, R and S (Wall & Rail Mount)
+ 15

Model 7SL Terminal Block Without RS-485 or Logic Input


Ou t 1 Ou t 2

- 14

T /C (b)
T /C(a )

S h ie ld + 15

D igi

T/C (a ): G, D, C , B , R, S T/C (b ): J, K , L , N , T, E, U , P la ti ne l

- 14 S h ie ld

Model 7SL Terminal Block With RS-485 and Logic Input

Input Wiring for TC Type G, D, C, B, R and S

14

TC Type J, K, L, N, T, E, U and Platinel (Wall & Rail Mount)


+ 15

RTD INPUT (Wall & Rail Mount)


RTD RTD

- 11 S hie ld + 15

16
- 11 S hie ld

15

14

16

15

14

RTD Input Wiring NOTE: 1) Dont run input wires together with power cables. 2) Pay attention to the line resistance; an high line resistance may cause measurement errors. 3) When shielded cable is used, it should be grounded at one side only to avoid ground loop currents. 4) The resistance of the 3 wires must be the same.

Input Wiring for TC Types J, K, L, N, T, E, U and Platinel NOTE : 1) Do not run input wires with power cables. 2) For T/C wiring use proper compensating cable, preferably shielded (see appendix B). 3) When a shielded cable is used, it should be connected to one side only.

15

LINEAR INPUT(Wall & Rail Mount)

LOGIC INPUT (Wall & Rail Mount Controllers with Serial Input) This input is used for remote alarm reset when manual reset of alarm is selected. SAFETY NOTES: 1) Do not run logic input wiring together with power cables. 2) Use an external dry contact capable of switching 0.5 mA, 5 V DC. 3) The instrument needs 100 ms to recognize a contact status variation. 4) The logic input is NOT isolated by the measuring input.

15 S h ield 14 15 14
G

mA, mV or V m A, mV or V

mA, mV and V Inputs Wiring NOTE: 1) Do not run input wires together with power cables. 2) Pay attention to the line resistance; a high line resistance may cause measurement errors. 3) When shielded cable is used, it should be grounded at one side only to avoid ground loop currents. 4) The input impedance is equal to: < 5 ohms for 20 mAdc input > 1 megohms for 60 mVdc input > 400 kilo-ohms for 5 Vdc and 10 Vdc input

12 13
Logic Input Wiring

16

RELAY OUTPUTS (Wall & Rail Mount)


1 O UT 1 C - O UT 1 N O - O UT 1

All relay contacts are protected by varistor against inductive load with inductive component up to 0.5 A. The following are recommendations avoid serious problems which may occur, when using relay output for driving inductive loads. INDUCTIVE LOADS (Wall & Rail Mount) High voltage transients may occur switching inductive loads. Through the internal contacts these transients may introduce disturbances which can affect the instrument performance. For all outputs, the internal protection (varistor) assures a correct protection up to 0.5 A of inductive component. The same problems may occur when a switch is used in series with the internal contacts as shown:

Class 1

N C - O UT 1 3

O ut 2 C lass 1 (Ala rm )

7 8

C NO

Relay Outputs Wiring The contact rating of OUT 1 is 3A/250V ac on resistive load. Contact rating of OUT 2 is 2A/250 Vac on resistive load. The number of operations is 1 x 105 at specified rating. NOTES 1) To avoid electric shock, connect power line at the end of the wiring procedure. 2) For power connections use No 16 AWG or larger wires rated for at last 75 C. 3) Use copper conductors only. 4) Do not run input wires with power cables.
17

P ow er Lin e

External Switch in Series with Internal Contact

In this case it is recommended to install an additional RC network across the external contact as shown. The value of capacitor (C) and resistor (R) are shown in the following table: Load <40 mA <150 mA <0.5 A C(F) R(ohms) 0.047) 100 0.1 22 0.33 47 P(W) Op. V 1/2 260 Vac 2 260 Vac 2 260 Vac

SERIAL INTERFACE (Wall & Rail Mount) RS-485 interface allows to connect up to 30 devices with one remote master unit. A /A 4 A /A
5 6 B/B B/B M A S TE R M A S TE R

C o m m on

Anyway the cable involved in relay output wiring must be as fara away as possible from input or communication cables.

4 5 6 4 5 6

A/A B/ B

A /A B / B Com mon

RS-485 Wiring The cable length must not exceed 9/10 mile (1.5 km) at 9600 BAUD. NOTE: The following report describes the signal sense of the voltage appearing across the interconnection cable as defined by EIA for RS-485.
18

a) The A terminal of the generator shall be negative with respect to the B terminal for a binary 1 (MARK or OFF) state. b) The A terminal of the generator shall be positive with respect to the B terminal for a binary 0 (SPACE or ON) POWER LINE WIRING (Wall & Rail Mount)
N, L2 9 10 100 to 240 Vac rms, 50/60 Hz or 24 Vac/Vdc N, L2 R (S,T) L1)

R (S,T), L1

Power Line Wiring NOTES : 1) Before connecting the instrument to the power line, make sure that line voltage corresponds to the description on the identification label. 2) To avoid electric shock, connect power line at the end of the wiring procedure. 3) For supply connections use No 16 AWG or larger wires rated for at last 75 C. 4) Use copper conductors only.

5) Do not run input wires with power cables. 6) For 24 Vdc the polarity is not a care condition. 7) The power supply input is not fuse protected. Please, provide it externally. Pwr Supply Type Current Voltage 24 Vac/ Vdc T 500 mA 250 V 100/240 Vac T 125 mA 250 V When fuse fails, check instrument for component damage. It is advisable to verify the power supply circuit, so it may be necessary to send the instrument back to your supplier. 8) The safety requirements for Permanently Connected Equipment say: a switch or circuit-breaker shall be included in the building installation; It shall be in close proximity to the equipment and within easy reach of the operator; it shall be marked as the disconnecting device for the equipment. NOTE: a single switch or circuitbreaker can drive more than one instrument. 9) When neutral line is present, connect it to terminal 9.

19

Preliminary Hardware Settings


1) Remove the instrument from its case. 2) Set J106 according to the desired input type as shown in the following figure. INPUT TYPE 1-2 TC-RTD close 60 mV close 5V 10 V 20 mA open open open J106 5-6 open open open close open

Limitrol without RS-485


2 4 6 8

V101

J106
1 3 5 7

3-4 open open close open open

7-8 open open open open close

Limitrol with RS-485

J106
1 3 5 7

V101

20

Configuration Procedure
CONFIGURATION KEY FUNCTIONS RESET In Configuration Mode, it is used only to scroll back parameters without to memorize a new parameter value. Used in Configuration Mode to decrease the parameter value. Used in Configuration Mode to increase the parameter value. FUNC Used to memorize the new parameter value and go to the next parameter. + Loads the default parameters. + FUNC or + FUNC Increases/decreases values at a higher rate when modifying parameters. + RESET or + RESET Jumps to the Maximum or Minimum parameter value when modifying parameters. CONFIGURATION PROCEDURE 1) Remove the instrument from its case. 2) Open switch V101 (See illustrations under Preliminary Hardware Settings.) 3) Re-insert the instrument in its case. 4) Switch on power to the instrument. The upper display will show COnF. NOTE : If "CAL" indication will be displayed, press immediately the s pushbutton and return to the configuration procedure. 5) Press the key and the lower display will show the firmware version. Press the "FUNC" key to start the configuration procedure with the first parameter (L1).

The following is a complete list of parameters. The lower display will show the parameter code (L1 to d1) and the upper display will show the selection code or numerical value. No timeout is applied in the configuration mode. L1 = Serial Interface Protocol (Skipped if option is not available.) OFF = No serial interface nbUS= Modbus jbUS = Jbus L2 = Serial Link Device Address (Skipped if option is not available or L1 = OFF) From 1 to 255 NOTE: EIA standard allows no more than 31 device connected by one RS-485. L3 = Baud Rate for Serial Link (Skipped if option is not available or L1 = OFF) Set value from 600 to 19200 baud. (19200 baud is shown on display as 1920) L4 = Byte Format for Serial Link (Skipped if option is not available or L1 = OFF) 8E = 8 bits + even parity 8O = 8 bits + odd parity 8 = 8 bits without parity

21

r 1 =Input Type 0 = TC J 1 = TC K 2 = TC T 3 = TC E 4 = TC N 5 = TC S 6 = TC R 7 = TC B 8 = TC L 9 = TC U 10 = TC G 11 = TC D 12 = TC C 13 = TC Plat. II 14 = RTD Pt 100 15 = Linear 16 = Linear 17 = Linear 18 = Linear 19 = Linear 20 = Linear 21 = Linear 22 = Linear 23 = TC J 24 = TC K 25 = TC T 26 = TC E 27 = TC N 28 = TC S 29 = TC R 30 = TC B 31 = TC L 32 = TC U 33 = TC G 34 = TC D 35 = TC C 36 = TC Plat. II 37 = RTD Pt100

and Range From -100 From -100 From -200 From -100 From -100 From -50 From -50 From 0 From -100 From -200 From 0 From 0 From 0 From -100 From -200 From 0 From 12 From 0 From 4 From 0 From 1 From 0 From 2 From -150 From -150 From -330 From -150 From -150 From -60 From -60 From 32 From -150 From -330 From 0 From 0 From 0 From -150 From -330

Value to 1000 to 1370 to 400 to 800 to 1400 to 1760 to 1760 to 1820 to 900 to 600 to 2300 to 2300 to 2300 to 1400 to 850 to 60 to 60 to 20 to 20 to 5 to 5 to 10 to 10 to 1830 to 2500 to 750 to 1470 to 2550 to 3200 to 3200 to 3300 to 1650 to 1110 to 4170 to 4170 to 4170 to 2550 to 1560

C C C C C C C C C C C C C C C mV mV mA mA V V V V F F F F F F F F F F F F F F F
22

r2 = Decimal Point Position (Available only for linear range r1 = 15 to 22) _ _ _ _ . = No decimal _ _ _ . _ = One decimal place _ _ . _ _ = Two decimal places _ . _ _ _ = Three decimal places r3 = Initial value of the readout scale (Available only for linear range r1 = 15 to 22) Range: From -1999 to 9999 r4 = final value of the readout scale (Available only for linear range r1 = 15 to 22) Range: From -1999 to 9999 r5 = Offset Adjustment Range: From -500 to 500 Offset value algebraically added to the measured value. r6 = Time constant of the filter applied to the displayed value Range: From 0 (filter OFF) to 8 seconds. (First order filter with selected time constant.) r7 = Alarm action on input fault. When the instrument detects an input failure condition, the alarm will operate as in presence of: uP = as in presence of the full scale value. doun = as in presence of the initial scale value. C1 = Type of limit action Hi. = High limit (for heating process) Lo. = Low limit (for cooling process) Hi.Lo = High and low limit (for special process)

C2 = Rearming Mode O = Acknowledgements rearm (reset) the limiter (and restart the process) only if the condition which generated the shutdown status no longer exists (points A and C of the Example 1). It do not generate any effect if the condition which generated the shutdown status still exists (point B of the Example 1). I = Acknowledgements enable the automatic rearmament (reset) of the limiter if the condition which generated the shutdown status still exists (point B of the Example 2). (The instrument rearms (reset) automatically when the condition which generated the shutdown status no longer exists). Notes about limiter function The relay of the output 1 operates in fail-safe mode (relay de-energized during shutdown condition) and latching mode. The OUT 1 turns OFF when: - C1 = Hi and the measured value is greater than limiter threshold [Su parameter (see Operative parameters)] or - C1 = LO and the measured value is less than limiter threshold [Su parameter (see Operative parameters)] or - C1 = HiLO and the measured value is greater than Su parameter (see Operative parameters) or less than S1 parameter (see Operative parameters). The Out 1 remains OFF until the condition which generated the shutdown, no longer exists and the acknowledge action has been performed. The upper display flashes during a shutdown and returns to a steady display when the shutdown condition no longer exists.
23

When C2 =0 and OUT 1 is OFF, RESET LED is ON. When C2 = 1 one of the following condition may occur: - if no acknowledgement has been made, OUT 1 is OFF and the RESET LED is flashing; - if the acknowledgement has been made but the condition which generated the shutdown status still exists, OUT 1 is OFF and the RESET LED is steady ON. The shutdown condition can be stored in permanent memory (see C4). Acknowledgment can be performed by pressing the RESET key, by momentarily closing the external dry contact or by a command from the serial link. The length of the shutdown condition and max/min measured values are stored in memory and available for viewing until the next shutdown condition occurs. These informations are lost at power down. During a shutdown condition the max/min measured values are continuously updated and can be monitored. Example 1 - C1 = Hi and C2 = O

A, B, C = Acknowledgment actions. NOTE: Acknowledgment B has no effect.

Example 2 - C1 = Hi and C2 = 1

P2 = Alarm configuration (Skipped if option is not available or P1 = none) H.A. = High alarm with automatic reset L.A. = Low alarm with automatic reset H.A.Ac = High alarm with automatic reset and "Silence" function. L.A.Ac =Low alarm with automatic reset and "Silence" function. H.L. = High alarm with manual reset L.L. = Low alarm with manual reset NOTE: 1 ) For band alarm, H.A./H.A.Ac/H.L. signifies outside band alarm, while L.A./ L.A.Ac/L.L. signifies inside band alarm. 2 ) The "Silence" function allows the manual reset of the alarm even if the alarm condition is still in progress. Example for P2 = H.A.

A, B = Acknowledgment actions. C3 = Rearm at Power-up Auto = Automatic rearm n An = Manual rearm C4 0 1 = Shutdown memory = The shutdown condition will be saved (at next power up it will be reactivated) = The shutdown condition will be lost in case of power down

C5 =Time Constant of the Filter applied to the Measured Value for Limit Action. Range: From 0 (filter OFF) to 8 seconds Note: First order filter with selected time constant. P 1 = Alarm Function (Skipped when the option is not available) nonE = Not provided AL.P = Process alarm AL.b = Band alarm AL.d = Deviation alarm When C1 = Hi.Lo, AL.b and AL.d are not available.
24

* Alarm Status:Relay energized (P3 = dir) Relay de-energized (P3 =rEV)

Example for P2 = H.A.A.c

P3 = Alarm Action (Skipped if option not is available or P1 = none) dir = Direct action (Relay energized in alarm condition) rEV = Reverse action (Relay energized in non-alarm condition) P4 = Alarm Standby (mask) Function (Skipped if option is not available or P1= none) OFF = Standby function disabled On = Standby function enabled

* Alarm Status: Relay energized (P3 = dir) Relay de-energized (P3 =rEV) Example for P2 = H.L.

If the alarm is programmed as band or deviation, this function masks the alarm condition at start up and after a Su (limit threshold) changement until the process variable reaches the alarm threshold, plus or minus hysteresis. This standby function masks a Process Alarm condition at start up until the process variable reaches the alarm threshold plus or minus hysteresis. PF = Time Constant of the Filter applied to the Measured Value for Alarm Action (Skipped if option is not available or P1 = none) Range: From 0 (filter OFF) to 8 seconds (First order filter with selected time constant.)

* Alarm Status:Relay energized (P3 = dir) Relay de-energized (P3 =rEV)

25

n1 = Safety Lock 0 = UNLOCKed. The device is always UNLOCKed and all parameters can be modified. l = LOCKed. The device is always LOCKed and no parameters can be modified From 2 to 9999 = This number is a password, to be used in run time (see nn), to LOCK/ UNLOCK the device.

t1 = Timeout Selection tn10 = 10 second timeout tn30 = 30 second timeout

d1 = Digital Input (contact closure) (This is a read only parameter) Enb = Digital input enabled dlS = Digital input disabled (The digital input is used as a remote Acknowledgment .)

The configuration procedure is now complete. The display will show "COnF".

26

Operating Mode
1) Remove the instrument from its case. 2) Set switch V101 to the closed position. (See illustrations at Preliminary Hardware Settings). 3) Re-insert the instrument in its case. 4) Switch on the instrument. Normal Display Mode On powerup the device starts in the "Normal Display Mode." By pressing the or key, it is possible to change the displayed information; therefore, one of the following display modes can be selected: 1) The upper display shows the measured value while the lower display shows the "Pu" (Process variable). If this display was active at power down, it will be active at powerup. 2) The upper display shows the limiter threshold while the lower display shows "Su." If this display was active at power down, it will be active at powerup. 3) The upper display shows the second limiter threshold while the lower display shows "S1." This information is available only if C1 = Hi.Lo. If this display was active at power down, it will be active at powerup. 4) The upper display shows the total time (hh.mm) of the last shutdown condition while the lower displays shows t. If no shutdown condition was detected, the upper display will show - - - -. The information is lost at power down and at powerup the device will display the process variable.
27

5) The upper display shows the maximum measured value detected during the last shutdown condition while the lower display shows "Ph.". If no shutdown condition was detected, the upper display will show - - - -. This information is not available if C1 = HI.Lo. The information is lost at power down and at powerup the device will display the process variable. NOTE: When the shutdown condition was generated by an input fault condition, the upper display will indicate m .Err . 6) The upper display shows the minimum mesured value detected during the last shutdown condition while the lower display shows "PL. If no shutdown condition was detected, the upper display will show - - - -. This information is not available if C1 = Hi. The information is lost at power down and at powerup the device will display the process variable. NOTE: When the shutdown condition was generated by an input fault condition, the upper display will indicate m .Err If, at power off, the device was in shutdown condition and shutdown memoy function is selected (C4 = 0), and/or it was programmed for manual reset at startup (C3 = 1), then at the next power up the lower display will be flashing.

Indicators RESET =Indicates control output 1 status as follows: a) When C2 parameter has been configured equal to 0, LED ON when Output 1 is OFF LED OFF when Output 1 is ON b) When C2 parameter has been configured equal to 1, LED flashes when Output 1 is OFF LED ON when Output 1 is OFF and acknowledged LED OFF when Output is ON ALM = Indicates alarm status as follows: - Flashes when alarm is ON - ON when alarm has been resetted but the alarm condition is still present. - OFF when alarm is OFF REM = Indicates the remote status of the instrument. - Flashes when instrument is in remote mode. - OFF when instrument is in local mode. Key Functions in Normal Display Mode FUNC = By pressing it, the display changes from Normal Display Mode to Operative Parameter Display Mode. = Pressing it for more than ten seconds initiates the Lamp Test. During the Lamp Test the device functions normally while all display segments and LED's are lit with a 50% duty cycle. No timeout is applied to a lamp test. Press the "FUNC" key again to end the Lamp Test. " " or " = By pressing these keys it is possible to change the displayed information. See Normal Display Mode.
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RESET= Press and hold for 1 second to rearm (reset) the limiter. + FUNC or + FUNC Increases/decreases values at a higher rate when modifying parameters. + RESET or + RESET Jumps to the Maximum or Minimum parameter value when modifying parameters. Operative Parameter Display Mode The "FUNC" key initiates the Operative Parameter Display Mode when pressed for less than 10 seconds in the "Normal Display Mode." The lower display shows the parameter code while the upper display shows the parameter value or status. The value of the selected parameter can be modified with the and keys. Press the "FUNC" key again to store the new value and advance to the next parameter. If no keys are pressed within the timeout period (see t1), the instrument will automatically return to the "Normal Display Mode" in the previous display and any modification of the last displayed parameter will be lost. All parameters (except ) can be modified only when the device is UNLOCKed. The LOCK/UNLOCK status can be selected in configuration using n1 parameter or during the operating mode with the nn parameter (password).

To switch from LOCKED to UNLOCKED, assign to the nn parameter a value equal to the n1 parameter setting. To switch from UNLOCKED to LOCKED, assign to the nn parameter any number other than the n1 parameter setting. When the device is in remote mode (the serial link controls the device) no parameters can be modified. Key Functions in Operative Parameter Display Mode

nn

Software Key (Skipped if n1 = 0 or 1) ON = the device is LOCKED. OFF = the device is UNLOCKED. When it is desired to switch from LOCK to UNLOCK condition, set a value equal to n1 parameter. When it is desired to switch from UNLOCK to LOCK condition, set a value different from n1 parameter. Limiter Threshold Range: Span limits (From "S1" to full scale value when C1 = Hi.Lo) Second Limiter Threshold (Available when C1 = Hi.Lo) Range: From initial scale value to "Su" Limiter Hysteresis Range: From 0.1% to 10.0% of the input span or 1 LSD Alarm Threshold (optional) (Available only if the option is fitted and P1= AL.P, AL.b or AL.d.) Ranges: span limits for process alarm (P1 = AL.P) from 0 to 500 for band alarm (P1 = AL.b) from -500 to 500 for deviation alarm (P1 = AL.d) Alarm Hysteresis (optional) (Available only if the option is fitted and P1 = AL.P, AL.b or AL.d) Range: From 0.1% to 10.0% of the input span or 1 LSD.

Su FUNC = Pressing the FUNC key, the instrument stores the new setting (if changed) and goes to the next parameter. Changes the setting of the selected parameter. HS RESET = Press and hold for more than 1 second for limiter rearmament. AL

S1

or

OPERATING PARAMETERS Some of the following parameters may not appear, depending on the configuration. Lower Description Display Manual reset of the alarm. (Available only if P1 = AL.p, AL.b or AL.d) ON = Starts the manual reset of the alarm OFF = Do not start the alarm reset. Select ON and press the FUNC key in order to reset the alarm. After a manual reset of the alarm the instrument returns in Normal Display Mode.

HA

29

Limiter function The relay of the output 1 operates in fail-safe mode (relay de-energized during shutdown condition) and latching mode. The OUT 1 turns OFF when: - The instrument is configured as a high limiter (C1 = Hi) and the measured value is greater than limiter threshold [Su parameter (see Operative parameters)] or - The instrument is configured as a low limiter (C1 = LO) and the measured value is less than limiter threshold [Su parameter (see Operative parameters)] or - The instrument is configured as a high/low limiter (C1 = HiLO) and the measured value is greater than Su parameter (see Operative parameters) or less than S1 parameter (see Operative parameters). The Out 1 remains OFF until the condition which generated the shutdown, no longer exists and the acknowledge action has been performed. The upper display flashes during a shutdown and returns to a steady display when the shutdown condition no longer exists.

contact or by a command from the serial link. The length of the shutdown condition and max/min measured values are stored in memory and available for viewing (see Normal Display Mode) until the next shutdown condition occurs. These informations are lost at power down. During a shutdown condition the max/min measured values are continuously updated and can be monitored. Example 1 - C1 = Hi and C2 = O

Example 2 - C1 = Hi and C2 = 1 When the OUT 1 is OFF the RESET LED is ON [if the selected rearming mode is equal to 0 (C2 = 0)] or flashes [if the selected rearming mode is equal to 1 (C2 = 1)]. When the selected rearming mode is equal to 1 (C2 = 1) the RESET LED is steady ON when OUT 1 is OFF and acknowledged. The shutdown condition can be stored in permanent memory (see C4). Acknowledgment can be performed by pressing the RESET key, by momentarily closing the external dry

30

Alarm functions (Skipped if option is not available or P1 = none) The alarm can be programmed as: - process alarm - band alarm - deviation alarm. Band and deviation alarms are referred to the limiter threshold and are possible only if an high limiter or a low limiter function has been selected. For all the alarm types, it is possible to select automatic or manual reset or the Silence function. The "Silence" function is a typical function of the alarm annunciators (see ISA Alarm annunciator operational sequence) and it is usually applied to audible alarm indications (horn). This function allows the manual reset of the alarm even if the alarm condition is still in progress. It is also possible to assign to the alarm a stand by (mask) function. If the alarm is programmed as band or deviation alarm, this function masks the alarm condition after a safety threshold change or at the instrument start-up until process variable reaches the alarm threshold plus or minus hysteresis. If the alarm is programmed as a process alarm, this function masks the alarm condition at instrument start-up until process variable reaches the alarm threshold plus or minus hysteresis. Graphic example of the alarm behaviour are shown at pages 12 and 13.

Serial LInk (optional) The device can be connected to a host computer via serial link. The host can put the device in LOCAL (parameters are controlled via keyboard) or in REMOTE (functions and parameters are controlled via serial link). REMOTE is shown by the decimal point to the left of "REM" which is on the right side of the numeric display. Via serial link it is possible to read and/or to modify all the operative and configuration parameters. The following conditions must apply to implement this function: 1) Configure parameters L1 through L4 with the front keyboard 2) The device must be in the Operating mode.

31

Error Messages
Overrange, Underrange and Sensor Break Indications This device detects input fault conditions. (OVERRANGE, UNDERRANGE OR SENSOR BREAK). When the process variable exceeds the span limits an OVERRANGE condition will appear as:

Error Messages On powerup, the instrument performs a self-diagnostic test. When an error is detected, the lower display shows an "Er" indication while the upper display shows the code of the detected error. Error List 100 Error in EEPROM writing 150 Short circuit on CPU's outputs 200 Error on "protect register" in EEPROM XXX Configuration parameter error. 301 Error on calibration of selected input. 307 rj input calibration error. 400 Error on operative parameters. 500 Error on autozero measurement. 502 Error on reference junction measurement. 510 Error during calibration procedure. Dealing with Error Messages 1) When a configuration parameter error is detected, repeat the configuration procedure of that specific parameter. 2) If an error 400 is detected, simultaneously press the t and s keys to load the default parameters and then repeat the control parameter setup. 3) For all other errors, contact your Service Representative.

An UNDERRANGE condition will appear as:

A sensor break is signaled as "OPEn. On the mA/ V input, a sensor break can be detected only when the range selected has a zero elevation (4/20 mA, 12/60 mV, 1/5 V or 2/10 V.) On the RTD input "shrt" is signalled when input resistance is less than 15 (short circuit sensor detection). This device detects reference junction errors or errors on the internal autozero measurement. When a fault is detected the output goes OFF and the alarm assumes an upscale/downscale reading in accordance with r7.

32

General Specifications
Case: Polycarbonate grey case Self extinguishing degree: V-0 according to UL. Front protection - designed and tested for IP 65 (*) and NEMA 4X (*) for indoor locations (when panel gasket is installed). (*) Test were performed in accordance with IEC 529, CEI 70-1 and NEMA 250-1991 STD. Installation: panel mounting. Rear terminal board: 15 screw terminals (screw M3, for cables from 0.25 to 2.5 mm2 or from AWG 22 to AWG 14 ), connection diagram and safety rear cover. Dimensions: 48 x 48 mm (according to DIN 43700); depth - 122 mm for models with RS-485. - 105 mm for models without RS-485 Weight: 250 g. max. (8.75 oz.). Power supply : (switching mode) from 100 to 240 V AC. 50/60 Hz (+10 % to -15 % of the nominal value) or 24 V DC/AC (+10 % of the nominal value). Power consumption: 8 VA. Insulation resistance: > 100 M according to IEC 1010-1. Isolation voltage: 1500 V r.m.s. according to IEC 1010-1. Common mode rejection ratio: 120 dB @ 50/60 Hz. Normal mode rejection ratio: 60 dB @ 50/60 Hz. Electromagnetic compatibility: This instrument is marked CE. Therefore, it is conforming to council directive 89/ 336/EEC (reference harmonized standard EN50081-2 and EN-50082-2).

Safety requirements: This instrument is marked CE. Therefore, it is conforming to council directives 73/23/EEC and 93/68/EEC (reference harmonized standard EN 61010-1). Installation cathegory: II D/A conversion: dual slope integration. Sampling time : - for linear inputs = 250 ms. - for TC or RTD inputs = 500 ms. Display updating time: 500 ms. Resolution: 30000 counts. Temperature Drift - Less than 200 ppm/C of full span for mV and TC ranges 0, 1, 3, 4, 8, 13, 23, 24, 26, 27, 31, 36 (CJ excluded). - Less than 300 ppm/C of full span for mA, V and TC ranges 10, 11, 12, 33, 34, 35 (CJ excluded) - Less than 400 ppm/C of full span for RTD and TC range 9, 32 (CJ excluded). - Less than 500 ppm/C of full span for TC ranges 2, 5, 6, 25, 28, 29 (CJ excluded). - Less than 600 ppm/C of full span for TC ranges 7, 30. NOTE: Precision and drift guaranteed (for T>300C/570F). Accuracy: + 0.2% f.s.v. @ 25 C (77 F) and nominal power supply voltage. Operative temperature: from 0 to +50 C (32 to 122 F). Storage temperature: from -20 to +70 C (-4 to 158 F). Humidity: from 20% to 85 % RH not condensing.

33

INPUTS A) THERMOCOUPLE Type : J, K, T, E, N, S, R, B, L, U, G(W), D(W3), C(W5), Platinel II, C/F selectable. External resistance: 100 max, maximum error 0.1% of span. Burn out: It is shown as an overrange condition (standard). It is possible to obtain an underrange indication by cut and short. Cold junction: automatic compensation from 0 to 50 C. Cold junction accuracy : 0.1 C/C Input impedance: > 1 M Calibration : according to IEC 584-1 and DIN 43710 - 1977. STANDARD RANGES TABLE T/C Ranges type J 0 K 1 T 2 E 3 N 4 S 5 R 6 B 7 L 8 U 9 G(W) 10 D(W3) 11 C(W5) 12 P.(*) 13 -100 / 1000 -100 / 1370 -200 / 400 -100 / 800 -100 / 1400 -50 / 1760 -50 / 1760 0 / 1820 -100 / 900 -200 / 600 0 / 2300 0 / 2300 0 / 2300 -100 / 1400 C C C C C C C C C C C C C C 23 24 25 26 27 28 29 30 31 32 33 34 35 36 -150 / 1830 -150 / 2500 -330 / 750 -150 / 1470 -150 / 2550 -60 / 3200 -60 / 3200 32 / 3300 -150 / 1650 -330 / 1110 0 / 4170 0 / 4170 0 / 4170 -150 / 2550 F F F F F F F F F F F F F F

B) RTD (Resistance Temperature Detector) Input: for RTD Pt 100 , 3 wire connection. Input circuit: current injection. C/F selection: via front pushbuttons or serial link. Line resistance: automatic compensation up to 20 /wire with no measurable error. Calibration: according to DIN 43760 Burn out : The instrument detect the open condition of one or more wires. It is able to detect also the short circuit of the sensor. STANDARD RANGES TABLE Input Ranges type RTD Pt 100 W DIN 43760 14 37 - 200 / 850 - 330 / 1560 C F

(*) P. equal to Platinel II

C) LINEAR INPUTS Read-out: keyboard programmable between -1999 and +9999. Decimal point: programmable in any position Burn out: the instrument shows the burn out condition as an underrange condition for 4-20 mA, 1-5 V and 2-10 V input types. It shows the burn out condition as an underrange or an overrange condition (selectable by soldering jumper) for 0-60 mV and 12-60 mV input types. No indication are available for 0-20 mA, 0-5 V and 0-10 V input types.

34

STANDARD RANGES TABLE Input type impedance 15 16 17 18 19 20 21 22 0 - 60 mV 12 - 60 mV 0 - 20 mA 4 - 20 mA 0- 5 V 1- 5 V 0 - 10 V 2 - 10 V

Accuracy

OUTPUTS Output updating time : - 250 ms when a linear input is selected - 500 ms when a TC or RTD input is selected. OUTPUT 1 Type: relay SPDT contact . Contact rated: 3 A at 250 V AC on resistive load. Function: Safety limiter output. Action: reverse (fail-safe). OUTPUT 2 Type: relay SPST contact . Contact rated: 2 A at 250 V AC on resistive load. Function: Alarm output Action: direct/reverse programmable by front keyboard.

> 1 M 0.2 % + 1 digit @ 25C > 400 k (77 F) > 400 k <5

D) LOGIC INPUTS This instrument is provided of 1 logic input used for remote acknowledgement. NOTES 1) Use an external dry contact capable of switching 0.5 mA, 5 V DC. 2) The instrument needs 100 ms to recognize a contact status variation. 3 ) The logic inputs are NOT isolated by the measuring input.

ALARM Action: Direct or reverse acting. Alarm functions: configurable as process alarm, band alarm or deviation alarm. Alarm reset: automatic reset, manual reset or "Silence" function is programmable. Stand by (mask) alarm: the alarm can be configured with or without stand by (mask) function. Process alarm: Operative mode : High or low programmable. Threshold: programmable in engineering unit within the readout span. Hysteresis: programmable from 0.1 % to 10.0 % of the readout span.
35

Band alarm Operative mode: Inside or outside band programmable. Threshold: programmable from 0 to 500 units. Hysteresis : programmable from 0.1 % to 10.0 % of the readout span. Deviation alarm Operative mode : High or low programmable. Threshold : programmable from - 500 to +500 units. Hysteresis : programmable from 0.1 % to 10.0 % of the readout span. SERIAL COMMUNICATION INTERFACE (OPTION) Type: RS-485 Protocol type: MODBUS or JBUS. Baud rate: programmable from 600 to 19200 BAUD. Byte format: 8 bit. Parity: even, odd or none programmable. Stop bit: one. Address: from 1 to 255. Output voltage levels: according to EIA standard.

36

Calibration
Calibration parameters are logically divided into groups of two parameters each initial scale value and final scale value. A calibration check is provided after entering the values of each group. A calibration check can be initiated without making an entry: press the FUNC key to advance to the desired calibration check. The lower display will show the parameter code (t., rJ., etc.) and the upper display will show on or off. Press the s or t key to select on or off. To go to the next parameter without modifying the calibration, press the FUNC key when the displays shows off. To return the previous parameter without modifying the calibration, press the MAN key. To set the parameter calibration, press the FUNC key when the display shows on. The display will blank, and only the decimal point of the LSD of the lower display will be lit during the calibration step. Before beginning calibration, be sure internal switch V101 is open (see "Preliminary Hardware Settings"). General Guidelines a) Instrument should be mounted in its case in order to keep internal temperature constant. b) Ambient temperature should be stable. Avoid drift due to air conditioning or other mechanical devices. c) Relative humidity should not exceed 70%.
37

d) Minimum warm up time should be at least 20 minutes. e) Operate as much as possible in a noise free environment. f) During calibration, connect one input at a time to the rear terminal block. g) Before input calibration, the specific settings described in the Preliminary Hardware Settings section must be made. h) Use calibrators with the following: Accuracy Current Input: 0.025% output 0.0025% range 0.01 microamp Voltage Input: 0.005% output 0.001% range 5 microvolt TC Input: 0.005% output 0.001% range 5 microvolt RTD Input: 0.02% 0.0025 ohm/decade Reference Junction Compensation: better than 0.1C mA output: better than 0.1% of the readout 2 microamp Resolution Current Input: 0.5 microamp Voltage Input: 100 microvolt TC Input: 1 microvolt RTD Input: 10 milliohm Ref. Jct. Compensation: better than 0.1C mA output 1 microamp

Calibration Parameters Following is a complete list of calibration symbols: CodeParameter tL TC/mV Input Minimum Range Value tH TC/mV Input Maximum Range Value t. TC/mV Input Check rJ Reference Junction Compensation rJ. Reference Junction Compensation Check (in 1/10C; Reset LED lit) PL RTD Input Minimum Range Value PH RTD Input Maximum Range Value P. RTD Input Check AL Current Input Minimum Value (0 mA) AH Current Input Maximum Value (20 mA) A. Current Input Check nL 5 Volt Input Min. Range Value (0 V) nH 5 Volt Input Max Range Value (5 V) n. 5 Volt Input Check UL 10 Volt Input Minimum Value (0 V) UH 10 Volt Input Maximum Value (10 V) U. 10 Volt Input Check Procedure Set the internal DIP switches as explained in the Preliminary Hardware Settings section of this manual. Perform calibration procedures according the jumpers positions, otherwise the stored calibration value might be lost. Switch on the instrument; the upper display will show COnF. Press the s key and the display will show CAL. Press the FUNC key to start the calibration process. Repeatedly press the FUNC key until the desired calibration (parameter) code appears.
38

Use the s and t keys to select between ON and OFF. To go to the next parameter without modifying the calibration, press the FUNC key when the display shows OFF . tL TC/mV input minimum range value a) Perform the preliminary hardware settings. Connect the calibrator and instrument as shown below.
P an el m o un ted co n tro ller

10 9

W a ll o r R a il m o un te d co n tro ller

15

14 for Ty pe s G , D , C , B , R , S 11 for Ty pe s J, K , L, N , T, E , U , Platin el


b) c) d) e) The displays show OFF and tL. Set calibrator to 0.000 mV. Press the s key; display changes to ON. After a few seconds, start calibration by pressing the FUNC key. The decimal point of the least significant digit will light to indicate the instrument is performing the calibration. When calibration is complete, the instrument will proceed to the next parameter.

tH TC/mV input maximum range value a) Set the calibrator to 60.000 mV. b) Press the s key; the displays will show ON and tH. c) After a few seconds, start calibration by pressing the FUNC key. The decimal point of the least significant digit will light to indicate the instrument is performing the calibration. When this calibration is complete, the instrument will proceed to the next parameter. t. TC/mV input check The display will show t. followed by a number showing the measured value in counts.

rJ Reference junction compensation Note: Make sure tL and tH are correctly calibrated before attempting rJ calibration. a) Measure the temperature close to terminals 9 and 10 using an appropriate instrument, as shown below.
P an el M o u n te d C on tro lle r 10 + M eas ur ing D ev ice 9 -

W a ll o r R a il M ou nte d Co ntro lle r 15 + M eas ur ing D ev ice 1 4 fo r Typ es G , D , C , B , R , S 1 1 fo r Typ es J , K , L, N , T, E , U , Platinel

Check the linear calibration by setting: a) 0.000 mV; the readout must be equal to t.0 0000 10 counts. b) 60.000 mV; the readout must be equal to t.3 0000 10 counts. c) 30.000 mV; the readout must be equal to t.1 5000 10 counts. d) Press the FUNC key; go to the next parameter.

b) Wait a few minutes to allow temperature stabilization of the entire system (compensation cable, sensor, calibrator and instrument). c) The displays will show rJ and OFF. Use the s and t keys to make the readout value equal to the temperature measured by the measuring device in tenths of degree Celsius. d) After a few seconds, start calibration by pressing the FUNC key. The decimal point of the least significant digit will light to indicate the instrument is performing the
39

calibration. When this calibration is complete, the instrument will proceed to the next parameter. rJ. Reference junction compensation check The display will show rJ. and the temperature in tenths of C. Check that the display readout is equal to the value read by the measuring device. Press the FUNC key; the instrument will proceed to the next parameter. PL RTD input minimum range value a) Perform the preliminary hardware settings. Connect the calibrator and instrument as shown below.
P an el M o un ted C on tro lle r 8 9 10 W all o r Ra il M o u nted C o n tro lller 16 14 15

of the least significant digit will light to indicate the instrument is performing the calibration. When this calibration is complete, the instrument will proceed to the next parameter. PH RTD input maximum range value a) Set resistor box to 375.00 ohms. b) Press the s key; the displays will show ON and PH. c) After a few seconds, start calibration by pressing the FUNC key. The decimal point of the least significant digit will light to indicate the instrument is performing the calibration. When this calibration is complete, the instrument will proceed to the next parameter. P. RTD input check The display shows P. followed by a number showing the measured value in counts.

b) Set 0.00 ohms on the resistor box. c) Press the s key; the displays show ON and PL. d) After a few seconds, start calibration by pressing the FUNC key. The decimal point
40

Check the calibration (not linear) by setting the resistance box to: a) 0.00 ohms; the readout should be P. 0 0000 10 counts. b) 125.00 ohms; the readout should be P.1 0190 10 counts. c) 250.00 ohms; readout should be P. 2 0189 10 counts.

d) 375.00 ohms; readout should be P. 3 0000 10 counts. e) Press the FUNC key and proceed to next parameter. AL Current input (mA) minimum range value a) Perform the preliminary hardware settings. Connect the calibrator and instrument as shown:
P ane l m o u n te d co n troller

10 9

AH Current input (mA) maximum range value a) Set 20 mA on the calibrator. b) Press the s key, the displays will show AH and ON. c) After a few seconds, start calibration by pressing the FUNC key. The decimal point of the least significant digit will light to indicate the instrument is performing the calibration. When this calibration is complete, the instrument will proceed to the next parameter. A. Current input (mA) check The display will show A. followed by a number showing the measured value in counts.

W a ll o r R ail m o un ted c on tro ller

15 14
Check the linear calibration by setting the calibrator to: a) 0.000 mA; the readout should be A. 0 0000 10 counts. b) 20.000 mA; readout should be A. 3 0000 10 counts. c) 10.000 mA; readout should be A. 1 5000 10 counts. d) Press the FUNC key.

b) Set 0.000 mA on the calibrator (even if the minimum range value is 4 mA). The upper display shows OFF. c) Press the s key, the display will switch to ON. d) After a few seconds, start calibration by pressing the FUNC key. The decimal point of the least significant digit will light to indicate the instrument is performing the calibration. When this calibration is complete, the instrument will proceed to the next parameter.
41

nL 5 volt input-minimum range value a) Perform the preliminary hardware settings. Connect the calibrator and instrument as shown:
P an el m ou n te d co n troller

10 9

nH 5 volt input-maximum range value a) Set 5.000 V on the calibrator. b) Press the s key, the display will show nH and ON. c) After a few seconds, start calibration by pressing the FUNC key. The decimal point of the least significant digit will light to indicate the instrument is performing the calibration. When this calibration is complete, the instrument will proceed to the next parameter n. 5 volt input check The display will show n. followed by a number showing the measured value in counts.

W a ll o r R ail m o un te d c on tro ller

15 14

b) Set 0.000 V on the calibrator (even if the minimum range value is 1 V). The upper display will show OFF. c) Press the s key, the display will show nL and ON. d) After a few seconds, start calibration by pressing the FUNC key. The decimal point of the least significant digit will light to indicate the instrument is performing the calibration. When this calibration is complete, the instrument will proceed to the next parameter.

Check the calibration by setting the calibrator to: a) 0.000 V; the readout should be n. 0 0000 10 counts. b) 5.000 V; readout should be n. 3 0000 10 counts. c) 2.500 V; readout should be n. 1 5000 10 counts. d) Press the FUNC key to proceed to next parameter.

42

UL 10 volt input - minimum range value a) Perform preliminary hardware settings as described in the Configuration section. Connect the instrument to the calibrator as shown:
P ane l m o u n te d co n troller

10 9

UH 10 volt input-maximum range value a) Set 10.000 V on the calibrator. b) Press the s key, the display will show UH and ON. c) After a few seconds, start calibration by pressing the FUNC key. The decimal point of the least significant digit will light to indicate the instrument is performing the calibration. When this calibration is complete, the instrument will proceed to the next parameter U. 10 volt input check The display will show U. followed by a number showing the measured value in counts.

W a ll o r R ail m o un ted c on tro ller

15 14

b) Set 0.000 V on the calibrator (even if the minimum range value is 2 V). The upper display will show OFF. c) Press the s key to enable calibration. The upper display will switch to ON. d) Wait a few seconds until the measurement has stabilized, then push the FUNC key. When calibration is complete, the instrument will go to the next parameter.

Check the calibration (linear) by setting the calibrator to: a) 0.000 V; the readout should be U.0 0000 10 counts. b) 10.000 V; readout should be U.3 0000 10 counts. c) 5.000 V; readout should be U.1 5000 10 counts. d) Press the FUNC key.

43

This completes the calibration procedure. To enter the configuration procedure press the s key, the display will show "CnF". If configuration and calibration are complete, switch the instrument off and set the DIP switches according the Preliminary Hardware Settings.

Maintenance
1) REMOVE POWER FROM THE POWER SUPPLY TERMINALS AND FROM RELAY OUTPUT TERMINALS 2) Remove the instrument from case. 3) Using a vacuum cleaner or a compressed air jet (max. 3 kg/cm2 ) remove all deposit of dust and dirt which may be present on the louvers and on the internal circuits trying to be careful for not damage the electronic components. 4) To clean external plastic or rubber parts use only a cloth moistened with: - Ethyl Alcohol (pure or denatured) [C 2H5 OH] or - Isopropil Alcohol (pure or denatured) [(CH 3)2 CHOH] or - Water (H2 O) 5) Verify that there are no loose terminals. 6) Before re-inserting the instrument in its case, be sure that it is perfectly dry. 7) re-insert the instrument and turn it ON.

44

APPENDIX A
Default parameters

Loading Default Operating Parameters The control parameters can be loaded with predetermined default values. These are the settings loaded into the instrument prior to shipment from the factory. To load the default values proceed as follows: a) Press and hold the key and press the key; the displays will show:

This indicates that the loading procedure has been initiated. After about 3 seconds the loading procedure is complete and the instrument reverts to the Normal Display Mode. The following is a list of the default operating parameters loaded during the procedure: Default Operating Parameter Alarm Acknowledge Software Key Setpoint Threshold Parameters List Default Value OFF Unlock Low range value (if low limit) High range value (if high or high/low limit) Low range value 0.1% Low range (if process alarm) 100 (if deviation or band alarm) 0.1%

Setpoint1 Threshold Setpoint Threshold Hysteresis Alarm Threshold

b) Press either the show:

or

key; the display will

Alarm Hysteresis

Loading Default Configuration Parameters The configuration parameters can be loaded with predetermined default values. These are the settings loaded into the instrument prior to shipment from the factory. To load the default values proceed as follows: a) Internal switch V101 must be open. b) The upper display will show:

c) Press the "FUNC" key; the display will show:

c) Press the key; the lower display will show the firmware version.

Appendix A.45

PARA.

Table 1 European

Table 2 American nbus 1 19200 8E Type J (-150 to 1830 F) ----. -150 1830 0 1 second uP Hi 0 Auto 0 1 second nonE H.A.Ac rEV OFF 1 second 0 30 seconds

L1 L2

nbUS 1 19200 8E Type J (-100 to 1000 C) ----. -100 1000 0 1 second uP Hi 1 Auto 0 1 second nonE H.A. rEV OFF 1 second 0 10 seconds

d) Still holding the key, press the display will show:

key; the

L3 L4 r1 r2 r3

e) Press the key to select Table 1 (European) or Table 2 (American) default parameters; the display will show:

r4 r5 r6 r7 c1 c2

f) Press the FUNC key; the display will show:

c3 c4 c5 P1

This indicates that the loading procedure has been initiated. After about 3 seconds the procedure is complete and the instrument reverts to the COnF display. The following is a list of the default configuration parameters loaded during the procedure:

P2 P3 P4 PF n1 t1

Appendix A.46

APPENDIX B
Thermocouple Compensating Cable Color Codes.

British Thermocouple BS 1843 Material T Copper Constantan + White - Blue Blue + Yellow J/L Iron Constantan - Blue Black + Brown K Nickel Chromium - Blue Nickel Aluminum Red + White R Platinum/Platinum - Blue 13% Rhodium Green + White S Platinum/Platinum - Blue 10% Rhodium Green + Brown E Chromel - Blue Constantan Brown B Platinum 30% Rh Platinum 6% Rh N Nicrosil / Nisil

American ANSI MC 96.1 + Blue - Red Blue + White - Red Black + Yellow - Red Yellow + Black - Red Green + Black - Red Green + Violet - Red Violet + Grey - Red Grey

German DIN 43710 + Red - Brown Brown + Red - Blue Blue + Red - Green Green + Red - White White + Red - White White

French NFE 18-001 + Yellow - Blue Blue + Yellow - Black Black + Yellow - Purple Yellow + White - Green Green + White - Green Green

Appendix B.47

Eurotherm/Barber-Colman 741-F Miller Drive Leesburg, VA 20175

Telephone: +1 703 443 0000 Facsimile: +1 703 669 1300 Email: info@eurotherm.com
Copyright 1998 Barber-Colman Company.

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