Industrial pH Meter (Two-wired Transmitter)

HP-100
Instruction Manual
CODE:GZ0000247931A
Preface

This manual describes the operation of the Industrial pH Meter (Two-wired Transmitter), HP-
100.
Be sure to read this manual before using the product to ensure proper and safe operation of
the instrument. Also safely store the manual so it is readily available whenever necessary.

Product specifications and appearance, as well as the contents of this manual are subject to
change without notice.

Warranty and Responsibility

HORIBA Advanced Techno, Co., Ltd. warrants that the Product shall be free from defects in
material and workmanship and agrees to repair or replace free of charge, at option of HORIBA
Advanced Techno, Co., Ltd., any malfunctioned or damaged Product attributable to
responsibility of HORIBA Advanced Techno, Co., Ltd. for a period of one (1) year from the
delivery unless otherwise agreed with a written agreement. In any one of the following cases,
none of the warranties set forth herein shall be extended;
z Any malfunction or damage attributable to improper operation
z Any malfunction attributable to repair or modification by any person not authorized by
HORIBA Advanced Techno, Co., Ltd.
z Any malfunction or damage attributable to the use in an environment not specified in this
manual
z Any malfunction or damage attributable to violation of the instructions in this manual or
operations in the manner not specified in this manual
z Any malfunction or damage attributable to any cause or causes beyond the reasonable
control of HORIBA Advanced Techno, Co., Ltd. such as natural disasters
z Any deterioration in appearance attributable to corrosion, rust, and so on
z Replacement of consumables

HORIBA ADVANCED TECHNO, CO., LTD. SHALL NOT BE LIABLE FOR ANY DAMAGES
RESULTING FROM ANY MALFUNCTIONS OF THE PRODUCT, ANY ERASURE OF DATA,
OR ANY OTHER USES OF THE PRODUCT.

Trademarks
Generally, company names and brand names are either registered trademarks or trademarks
of the respective companies.

March, 2011 © 2011 HORIBA Advanced Techno, Co., Ltd.

Regulations

Conformable Directive

This equipment conforms to the following directives and standards:

Directives: the EMC Directive 2004/108/EC
Standards: [the EMC Directive]
EN61326-1: 2006 Class A, industry

Note
When the sensor cable, the transmission cable, or the contact input cable is extended
to 30 m or longer, the surge test specified in the EMC directive for CE marking is not
applied.

FCC Rules

Any changes or modifications not expressly approved by the party responsible for compliance
shall void the user's authority to operate the equipment.

J WARNING
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense.
For Your Safety

Hazard Classification and Warning Symbols

Warning messages are described in the following manner. Read the messages and follow the
instructions carefully.

Q Hazard classification

This indicates an imminently hazardous situation which, if not avoided, will

result in death or serious injury. This signal word is to be limited to the most
extreme situations.

This indicates a potentially hazardous situation which, if not avoided, could

result in death or serious injury.

This indicates a potentially hazardous situation which, if not avoided, may

result in minor or moderate injury. It may also be used to alert against
unsafe practices.
Without safety alert indication of hazardous situation which, if not avoided,
could result in property damage.

Q Warning symbols

Description of what should be done, or what should be followed

Description of what should never be done, or what is prohibited

Safety Precautions

This section provides precautions to enable you to use the product safely and correctly and to
prevent injury and damage. The terms of DANGER, WARNING, and CAUTION indicate the
degree of imminency and hazardous situation. Read the precautions carefully as it contains
important safety messages.

WARNING

ELECTRIC SHOCK
Opening the rear cover may cause electric shock while supplying electric power. Do not open the rear
cover without disconenecting the main power.

ELECTRIC SHOCK
Maintain ground to avoid electric shock. Do not ground the unit to a gas pepe or to an indirect ground,
such as another piece of the equipment.

If there is a possible of lighting damage, install lighting arresters both at the instrument and receive
device.

ELECTRIC SHOCK
Make sure that no electric power is supplied to the instrument before staring this work.

CAUTION

FIRE
Do not put water, metal chip or any foreign substances inside the rear cover. The unit may be shorted
catch fire.

• Operating the instrument using a voltage out of the rated range may cause it to malfunction. Be
sure to check the voltage of the power supply. Also make sure that the fluctuation of the power
supply voltage is within the range of 22.5 V to 30 V.
• Use a balanced type shield cable.
• If there is a possible of lighting damage, install an arrester in two place between the HP-100 and
the distributor.
Product Handling Information

Operational Precautions

Use of the equipment in a manner not specified by the manufacturer may impair the protection
provided by the equipment. And it may also reduce equipment performance.
Therefore, exercise the following precautions:
z Do not use organic solvent or the like.
z Do not immerse the HP-100 in dilute hydrochloric acid for long hours.

Disposal of the Product

When disposing of the product, follow the related laws and/or regulations of your country for
disposal of the product.

Manual Information

Description in This Manual

Note
This interprets the necessary points for correct operation and notifies the important points for
handling the unit.

Reference
This indicates the part of where to refer the information.

Tip
This indicates reference information.
 Contents

Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Mounting the Field Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
External Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Connecting the Electrode (or Holder) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Wiring of Two-wired Transmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Fixing the Rear Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Mounting the Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Air Purge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Calibration and Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

pH Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
STD control and SLOPE control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Calibration cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Replaceing the Dry Agent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Reference data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Disposal Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
 Outline

Outline

Introduction

The industrial pH meter HP-100 consists of the pH sensor, the sensor holder, the transmitter,
and the power unit that supplies the power to these components through two lines, receives
signal and provides the output to the extemal receiving instrument.
This manual provides explanation for the two-wired transmitter. For other units, refer to
individual instruction manuals.

Electrode signal cable

Signal connecting cable

This transmitter is a field insulating-type converter. By connecting the lead wire of the
electrode of fixture and connecting power supply of approx. 22.5 V to 30 V DC, this converter
transmits the pH measured value as a signal of 4 mA to 20 mA DC, overlapping the supply
power line (2 wires).

The measured value is displayed on the LC digital meter.

1
Set Up

Set Up

Unpacking

Contains one set of transmitter and one drying agent.

Mounting the Field Transmitter

Prepare a 50 A pipe. Fix the transmitter firmly to the prepared pipe as shown in the figure. You
can mount it in both directions (right or left). An optional hood (FD-10) is available.

2
 Set Up

External Wiring

Make wiring in accordance with the external wiring diagram. Use the optional janction box (JB-
30) to relay between the electrode and transmitter.
Use optional special (W-5B). Maximum length of wiring should be within 50 m.

WARNING

ELECTRIC SHOCK
Opening the rear cover may cause electric shock while supplying electric power. Do not open the rear
cover without disconenecting the main power.

ELECTRIC SHOCK
Maintain ground to avoid electric shock. Do not ground the unit to a gas pipe or to an indirect ground,
such as another piece of the equipment.

CAUTION

FIRE
Do not put water, metal chip or any foreign substances inside the rear cover. The unit may be shorted
catch fire.

Note
z Class D grounding.
z Use a transmission cable equivalent to CVVS 2 mm2.
z To connect the terminal, use M4 caulking terminal.
z Supply the power after checking connection.

3
Set Up

Connecting the Electrode (or Holder)

Open the rear cover of the transmitter and you will find the terminal board.
Electrode lead wire varies depending on the type of the electrode.
Connect lead wires, referring to the following diagram.

Q pH electrode
6108, 6109, 6151
Connect G, R, T, T, and E (5 wires).

6171, 6172, 6173, 6174

Connect G, S, R, T, T, and SE (6 wires).

6102
Connect G, R, T, and T (4 wires).

4
 Set Up

J Wiring of Two-wired Transmission

WARNING

If there is a possible of lighting damage, install lighting arresters both at the instrument and receive
device.

ELECTRIC SHOCK
Make sure that no electric power is supplied to the instrument before staring this work.

Q Power switch
This instrument has no power switch. Install a power switch.

Q Connecting the power supply

The power supply is 2-wire transmission power source that rated voltage is 22.5 V to 30 V DC.

CAUTION
• Operating the instrument using a voltage out of the rated range may cause it to malfunction. Be
sure to check the voltage of the power supply. Also make sure that the fluctuation of the power
supply voltage is within the range of 22.5 V to 30 V.
• Use a balanced type shield cable.
• If there is a possible of lighting damage, install an arrester in two place between the HP-100 and
the distributor.

As illustrated below, connect the power cable and grounding cable.

Example of recommended connections

Arrester
Balanced type
shield cable

Class D
grounding

Class D grounding Distributor

（+） （−）
Power supplied
Voltage:DC 22.5 V to 30 V AC power source

Receiving Class D
instrument grounding

5
Set Up

Fixing the Rear Cover

There are small protrusions in the rear cover and the main unit case. To tighten the cover,
align these protrusions and screw straight. If they are obliquely inserted, the cover cannot be
colsed completely.

Mounting the Hood

To mount the hood (FD-10) provided as an option, use screws on the opposite side where
metal fitting for 50 A pipe is attached.

Hood

Air Purge

The two tapped holes of PF 1/8 screw are the side of STD/SLOPE control on the bottom of the
transmitter. The tapped holes are used to be the inlet and outlet ports of air purge after boring
a hole to the inside of the transmitter and connecting the air pipe joints. The air purge is
required in the environment of corrosive gas or huge humidity.

6
 Calibration and Measurement

Calibration and Measurement

pH Calibration

J STD control and SLOPE control

STD control

SLOPE control

STD control and SLOPE control are connected to the volume through the shaft and pin, as
following diagram.

Push and insert into the notch.

The control is connected to the volume.

Pull to release connection.

The control is ideled.

Push with turning.

The volume is connected. Pull to release connection.

Push the control with turning to connect the pin and the volume.
Soak the electrode in the standard solution.
Set the value of the LCD display to the value of the standard solution with STD/SLOPE
controls.
z STD control
Adjust the value of the LCD display to the value of the pH7 standard solutioin affected by
the temperature. (example: pH6.86 25°C).

z SLOPE control
Adjust the value of the LCD display to the value of the pH7 standard solutioin affected the
temperature. (example: pH4.01 25°C of pH9.18 25°C).
Calibrate other standard solution according to the explanation for that standard solution.

7
Calibration and Measurement

J Calibration cycle
Calibrate periodically depending on electrodes condition.

Measurement

When calibration is completed, you can start measuremet. Soak the electrode in the sample
liquid.

8
 Maintenance

Maintenance

Replaceing the Dry Agent

M3 screw

Shield plate

O-ring

Drying agent

Cover

Put the drying agent in the rear cover of the transmitter unit.
Replace with new drying agent at least every three to six months. (Silica gel is available as
drying agent.)
To open or close the cover, refer to the description in 2.6 Fixing the Rear Cover.

Troubleshooting

No indication appear.

Cause Countermeasure
Power is not turned ON. Turn ON the power.
Load is not connected. Conncect lead resistance (500 Ω or less)

Calibration is not possible.

Cause Countermeasure
Standard liquid and electrode
Use normal, standard solution and ecectrede.
are abnormal.

If you cannot remedy the cause, contact our representative or our service department.

9
Reference data

Reference data

Specifications

Product name pH meter

Model HP-100
Combined sensor Glass electrode
Measurement
pH0 to pH14
range
Display resolution 0.01pH
Repeatability Within ±0.05 pH (response for equivalent input)
Performance
Linearity Within ±0.05 pH (response for equivalent input)
Output type 4 mA to 20 mA DC: input/output isolated type
Load resistance Maximum: 500 Ω Case of 24 V DC power supply
Analog output Linearity Within ±0.08 mA (output only)
Repeatability Within ±0.08 mA (output only)
Output range pH0 to pH14
Applicable temperature
Platinum resistor: 1 kΩ (0°C)/6.8 kΩ (25°C) Optionally available
Temperature element
compensation Temperature
0°C to 100°C
compensation range
Calibration method Manual calibration
Calibration Number of calibration
Selectable 2 points
points
Operating temperature
−10°C to 50°C (without freeze)
range
Operating humidity
Relative humidity: 5% to 90% (without condensation)
range
Storage temperature −25°C to 65°C
Power supply voltage
24 V DC (22.5 V to 30 V)
Power supply range
Power consumption 0.6 W (max)
CE Compatible
EMC Directive (2004/108/EC) EN61326-1:2006
marking standards
Industrial location
Electrostatic discharge IEC61000-4-2
Electromagnetic field of radiated radio
IEC61000-4-3(*Note 1)
frequency
Immunity
Compatible standards Electric fast transient/burst IEC61000-4-4
EMC
Surge IEC61000-4-5(*Note 2)
Conducted interference induced by radio
IEC61000-4-6(*Note 1)
frequency
ClassA
Emission
Radiated disturbance CISPR 11 CLASS A
FCC Rules Part15 CLASS A

10
 Reference data

Installation Outdoor installation and Rain-Proof type

Installation method Mounted on 50A pole or wall
Protection code IP55 (IEC60529) (Category 2)
Case material PPO
Structure
Material of fittings SUS304
Material of hood Option (SPCC t1.2 (coated with epoxy-denatured melamine resin))
Material of window Glass
Display element Reflective monochrome LCD
External dimensions 125 (W) ×137.5 (H) ×187 (D) mm (excluding the fittings)
Mass Main body: Approx. 1 kg; fittings: Approx. 500 g

z Note 1: The standard for effect on the reading by the electromagnetic field of the radiated
radio frequency and by the conducted interference is within the measured pH value ±0.3
pH.
z Note 2: When the sensor cable, the transmission cable, or the contact input cable is
extended by 30 m or more, the surge test under the EMC Directive for CE marking is not
applied.
z Note 3: An arrester (spark over voltage: 400 V) is implemented for transmission output
and contact input. However, use a most suitable surge absorption element on the
connection lines in accordance with the ambient environment, the situation of equipment
installed, and the externally connected equipment.

11
Reference data

Disposal Method

To dispose of the HP-100, comply with the ordinances and regulations specified in your
region.
The parts for the HP-100 are made of the following raw materials:

Screw
M3×8
2-Screw
M3×8

2-Screw
M3×8

4-Screw
M5×10 SUS
2-Nut
M8,HW,SW
2-Screw
M3×8

No. Name Raw material No. Name Raw material

1 Cap PPO 16 Pin SUS304
2 Packing CR 17 Collar PPO
3 Window Glass 18 O-ring EPT
4 LCD panel PC 19 VR shaft POM, SUS303
5 Packing EPT 20 Silicon rubber Silicon
6 PCB PCB 21 Cable graund PA,EPDM
7 Bracket A SECC 22 Seal pin EPDM
8 Plate PET 23 Stay SUS304
9 Case PPO 24 Wire PVC, Cv
10 Plate SUS304 25 U-Saped bolt SUS304
11 O-ring EPDM
12 Cap PPO
13 VR Knob POM
14 Screw SUS304
15 Plate PET

12
http://www.horiba-adt.jp

Headquarters
31, Miyanonishi-cho, Kisshoin, Minami-ku,
Kyoto, 601-8306
TEL:+81-75-321-7184 FAX:+81-75-321-7291

Osaka Office
4F Shin Osaka Ueno Toyo Building,
7-4-17, Nishinakajima, Yodogawa-ku Osaka, 532-0011
TEL:+81 6 6390 8211 FAX:+81 6 6390 8222

Tokyo Office
4F Higashikanda Fukoku Seimei Building,
1-7-8, Higashikanda, Chiyoda-ku, Tokyo, 101-0031
TEL:+81-3-3851-3150 FAX:+81-3-3851-3140

Nagoya Office
6F Sumitomo Seimei Chikusa 2nd Building,
3-15-31, Aoi, Higashi-ku, Nagoya, 461-0004
TEL:+81-52-937-0812 FAX:+81-52-937-0675