Yokogawa PH100 User Manual

User’s Manual

Model PH100 Panel Mount pH Converter

IM 12B11A01-01E

1st Edition

r Introduction

This manual covers the specifications, installation, operation and maintenance of the panel-mount version of the PH100 pH converter. Please read this before using the PH100. There are manuals for the related EXA100 series as follows: Refer to them as required.

Model code Manual Name IM No.

PH100 Panel Mount pH Converter IM 12 B11A01-01E OR100 Panel Mount ORP Converter IM 12 C11A01-01E SC100 Panel Mount Conductivity Converter IM 12 D11A01-01E PH10FP KCl Refillable pH Sensor IM 12 B11C01-01E PH10RP KCl Replenish-free pH Sensor IM 12 B11C02-01E OR10FP KCl Refillable ORP Sensor IM 12 C11C01-01E OR10RP KCl Replenish-free ORP Sensor IM 12 C11C02-01E SC10XB Conductivity Sensor for SC100 IM 12 D11C01-01E WTB100 Terminal Box for EXA100 IM 12 B11E01-01E WF100 Extension Cable for EXA100 IM 12 B11F01-01E PH10HLD Immersion Holder for EXA100 IM 12 B11D01-01E PH10HG Guide-pipe Holder for EXA100 IM 12 B11D02-01E

T000.eps

Safety Precautions

IM 12B11A01-01E

r For the safe use of this equipment

(1) About This Manual

• This manual should be passed on to the end user.

• The contents of this manual are subject to change without prior notice.

• The contents of this manual shall not be reproduced or copied, in part or in whole, without permission.

• This manual explains the functions contained in this product, but does not warrant that they will suit the particular purpose of the user.

• Every effort has been made to ensure accuracy in the preparation of this manual. However, should any errors or omissions come to the attention of the user, please contact the nearest Yokogawa Electric representative or sales office.

• This manual does not cover the special specifications. This manual may be left unchanged on any change of specification, construction or parts when the change does not affect the functions or performance of the product.

• If the product is used in a manner not specified in this manual, the safety of this product may be impaired.

(2) Safety and Modification Precautions

• Follow the safety precautions in this manual when using the product to ensure protection and safety of personnel, product and system containing the product.

(3) The following safety symbols are used on the product as well as in this manual.

DANGER

This symbol indicates that the operator must follow the instructions laid out in this manual in order to avoid the risk of personnel injury, electric shock, or fatalities. The manual describes what special care the operator must exercise to avoid such risk.

WARNING

This symbol indicates that the operator must refer to the instructions in this manual in order to prevent the instrument (hardware) or software from being damaged, or a system failure from occurring.

CAUTION

This symbol draws attention to information essential for understanding the operation and functions.

Tip

This symbol gives information that complements the current topic.

SEE ALSO

This symbol identifies a source to which to refer.

Protective Ground Terminal

Function Ground Terminal (Do not use this terminal as the protective ground terminal.)

Alternating current

IM 12B11A01-01E

r NOTICE and Cautions

• Check specifications When the instrument arrives, unpack the package with care and check that the instrument has not been damaged during transportation. In addition, please check that the specification matches the order, and required accessories are not missing. Specifications can be checked by the model codes on the nameplate. Refer to Chapter 1.2 Specifications for the list of model codes.

• Details on operation parameters When the PH100 panel mount pH Converter at the user site, it will operate based on the operation parameters (initial data Table 5.1 to 5.5) set before shipping from the factory. Ensure that the initial data is suitable for the operation conditions before conducting analysis. Where necessary, set the instrument parameters for appropriate operation. For details of setting data, refer to chapters 4 to 5. When user changes the operation parameters, it is recommended to note down the changed setting data.

Safety Precautions

Front Panel of PH100

IM 12B11A01-01E

iii

LED Display Symbols

• Alphanumerics are represented as follows on the LED display

Alphanumerics Alphanumerics AlphanumericsLED Display LED Display LED Display

IM 12B11A01-01E

r After-sales Warranty

d During the warranty period, for repair under warranty carry or send the product to the

local sales representative or service office. Yokogawa will replace or repair any damaged parts and return the product to you.

d Before returning a product for repair under warranty, provide us with the model

name and serial number and a description of the problem. Any diagrams or data explaining the prpoblem would also be appreciated.

d If we replace the product with a new one, we won’t provide you with a repair report. d Yokogawa warrants the product for the period stated in the pre-purchase quotation.

Yokogawa shall conduct defined warranty service based on its standard. When the customer site is located outside of the service area, a fee for dispatching the maintenance engineer will be charged to the customer.

d In the following cases, customer will be charged repair fee regardless of warranty

period.

• Failure of components which are out of scope of warranty stated in instruction

manual.

Safety Precautions

• Failure caused by usage of software, hardware or auxiliary equipment, which

Yokogawa Electric did not supply.

• Failure due to improper or insufficient maintenance by user.

• Failure due to modification, misuse or outside-of-specifications operation which

Yokogawa does not authorize.

• Failure due to power supply (voltage, frequency) being outside specifications or

abnormal.

• Failure caused by any usage out of scope of recommended usage.

• Any damage from fire, earthquake, storms and floods, lightning, disturbances, riots,

warfare, radiation and other natural changes.

d Yokogawa does not warrant conformance with the specific application at the user

site. Yokogawa will not bear direct/indirect responsibility for damage due to a specific application.

d Yokogawa Electric will not bear responsibility when the user configures the product

into systems or resells the product.

d Maintenance service and supplying repair parts will be covered for five years after

the production ends. For repair for this product, please contact the nearest sales office described in this instruction manual.

IM 12B11A01-01E

Contents

r Introduction ...................................................................................................................... i

r For the safe use of this equipment ................................................................................ ii

r NOTICE and Cautions ..................................................................................................iii

r After-sales Warranty ...................................................................................................... v

1. Overview .....................................................................................................................1-1

1.1 EXA PH100 pH converter .............................................................................. 1-1

1.2 Check the specifications ................................................................................. 1-1

1.3 Features of the EXA PH100 pH converter..................................................... 1-2

1.4 Standard Specifications ................................................................................... 1-2

2. Preparation for Operation ........................................................................................2-1

2.1 Unpacking ....................................................................................................... 2-1

2.2 Choosing an Installation Location .................................................................. 2-1

2.3 External Dimensions ....................................................................................... 2-2

2.4 Panel Cutout Dimensions................................................................................ 2-3

2.5 Mounting ......................................................................................................... 2-4

3. Wiring..........................................................................................................................3-1

3.1 Pulling in Wiring............................................................................................. 3-2

3.2 Noise prevention ............................................................................................. 3-3

3.3 Wiring Terminal Diagram............................................................................... 3-4

3.4 pH detector wiring .......................................................................................... 3-7

3.5 Wiring cable to intermediate terminal box..................................................... 3-9

3.6 Output Signal Cable Wiring ........................................................................... 3-9

3.7 Contact output wiring. .................................................................................... 3-9

3.7.1 Wiring when S1 is used .......................................................................... 3-9

3.7.2 Wiring for S2 (for two-contact-output case) or S2,

S3 and S4 (four-contact output case).................................................... 3-11

3.8 Power and Ground Wiring ............................................................................ 3-12

4. Overview of Operation Panel ................................................................................... 4-1

4.1 Overviews of names and functions of operation panel keys ......................... 4-1

4.2 Key Operation ................................................................................................. 4-2

4.3 Switching display screens ............................................................................... 4-3

4.4 Display screen examples ................................................................................. 4-4

4.4.1 Initial display ........................................................................................... 4-4

4.4.2 Measurement screen ................................................................................ 4-5

4.4.3 Calibration screen .................................................................................... 4-6

4.4.4 Setting screen........................................................................................... 4-7

IM 12B11A01-01E

vii

5. Operation .................................................................................................................... 5-1

5.1 Start up ............................................................................................................ 5-1

5.1.1 Check wiring ........................................................................................... 5-1

5.1.2 Start up pH converter .............................................................................. 5-1

5.1.3 Data setting .............................................................................................. 5-1

5.1.4 Temperature Calibration........................................................................ 5-10

5.1.5 Calibration with Standard Liquid.......................................................... 5-10

5.2 Test Operation ............................................................................................... 5-11

5.3 Normal operation .......................................................................................... 5-11

5.4 Stopping and Restarting Operation............................................................... 5-11

6. Calibration with standard solution .......................................................................... 6-1

6.1 Important issues relating to calibration with standard solution ..................... 6-1

6.2 Calculations involved in Calibration with Standard Solution........................ 6-2

6.3 Preparation ....................................................................................................... 6-5

6.4 Auto calibration with standard solution .......................................................... 6-8

6.4.1 Setting parameters for auto calibration ................................................... 6-8

6.4.2 Procedure for auto calibration ................................................................. 6-8

6.5 Manual Calibration with Standard Solution ................................................. 6-12

6.5.1 Manual Calibration Parameter Settings ................................................ 6-12

6.5.2 Procedure for Manual Calibration......................................................... 6-12

6.6 Canceling Calibration .................................................................................... 6-14

6.7 Error during Calibration................................................................................ 6-14

6.7.1 Recovering from an Error ..................................................................... 6-14

6.7.2 Quitting calibration................................................................................ 6-14

7. Maintenance and Cleaning ....................................................................................... 7-1

7.1 Periodic Maintenance...................................................................................... 7-1

7.1.1 Electrode cleaning ................................................................................... 7-1

7.1.2 Calibration with Standard Liquid............................................................ 7-1

7.1.3 Checking the KCl in the Detector........................................................... 7-1

7.2 Preventative Maintenance ............................................................................... 7-2

7.2.1 PH Converter Terminal Isolation ............................................................ 7-2

7.2.2 Check the Display of the pH Converter ................................................. 7-2

8. Troubleshooting .......................................................................................................... 8-1

8.1 Unexpected value displayed

(narrowing down problem to converter or sensor) ........................................ 8-1

8.2 Error Display ................................................................................................... 8-4

8.3 Fixing Error Status .......................................................................................... 8-4

8.3.1 Error 1 pH Measurement Out of Range ................................................ 8-4

8.3.2 Error 2 Temperature Measurement Out of Range................................. 8-4

8.3.3 Error 3 Temperature Sensor Abnormal ................................................. 8-5

8.3.4 Converter Abnormal ................................................................................ 8-5

8.3.5 Calibration Error...................................................................................... 8-5

8.3.6 Asymmetry Potential Abnormal.............................................................. 8-6

8.3.7 Abnormal Slope of sensor emf characteristic ......................................... 8-6

8.3.8 Unstable Sensor Reading ......................................................................... 8-6

Revision Record .................................................................................................................... i

viii

IM 12B11A01-01E

1. Overview

1.1 EXA PH100 pH converter

The EXA PH100 pH converter is a panel-mount unit with built-in general-purpose preamp, large 4-digit LED display for measured value and 4-digit LED display for settings.

1.2 Check the specifications

The model number and suffix codes are shown below. Check that what you were supplied is the same as what you ordered.

1. Overview

Model

PH100

Label language

Contact output

Temperature sensor

Option

Suffix code Option code Description

Panel mounted pH converter

-A

-E

-J

-21

-41

-T1

-T2

-T3

-T4

-NN

Construction

Always -A English Japanese 2 contact outputs 4 contact outputs Pt1000/Pt100 Pt1000/500 Ω Pt1000/10 kΩ Pt1000/6.8 kΩ Always -NN IP65/65

T1.2E.EPS

IM 12B11A01-01E

1-1

1.3 Features of the EXA PH100 pH converter

(1) Large 4-digit display. Both measured pH value and temperature can be displayed at the same time.

(2) You can easily calibrate the unit with pH4, pH7 or pH9 standard solution. (3) You can select either two output contacts or four ; and you can select each contact

output type from : high, low, high high, low low, and high high / low low. (4) Isolated 4 to 20 mA analog output of measured value. (5) Calibration values and measured values can be read to 0.01 pH, making high accuracy

measurement and calibration possible. (6) The operation panel is rated for operation in an IP55. IP65 is optional. (7) 96 mm x 96 mm DIN size panel mount instrument. Depth is 120 mm and weight is

600 g. (8) Full set of self-diagnostic functions with indication of errors such as measurement

out of range, converter abnormal, calibration-time error.

1.4 Standard Specifications

Measurement : Hydrogen ion concentration (pH) of a solution Measuring range : -2.00 to 14.00 pH Indication

Display

Display : Digital (LED) Range : -2.00 to 16.00 pH Resolution : 0.01 pH (pH reading), 1 8C (temperature reading) Indication items : pH reading, setting, status, temperature *

*1: Indication “enabled/disabled” selectable

Input signal

pH input range : -2 to 16 pH pH input impedance : 1012 V or more Temperature input *2 : Pt1000/Pt100, Pt1000/500 V, Pt1000/10 kV, Pt1000/6.8 kV

*2 : Must be specified when ordering.

Temperature input range : -10 to 110 8C

Transmission signal output

Number of output points : 1 output, pH reading only Output signal : 4 to 20 mA DC, isolated Load resistance : 600V or less Transmission signal range : Configurable within pH-2.0 to pH 16.0 (Detault : pH0.0 to

pH 14.0)

Minimum span : 2 pH Maintenance output signal : Output hold “enabled/disabled” selectable Hold output value : Last measured value/preset value (2.0 to 20.8 mA) selectable Fail output signal : Downscale burnout (2 mA) “enabled/disabled” selectable

1-2

IM 12B11A01-01E

Contact output

Contact type : Relay contact output Number of contacts : 2 or 4 outputs (must be specified when ordering) Contact action : On/Off action Contact functions : Selectable; High, low, high-high, low-low, high-high/low-low limit

alarms, FAIL Contact output hysteresis : 0.0 to 4.0 pH (configurable) Contact output delay time : 0 to 200 seconds (configurable)

Contact rating : When 2 contact outputs specified

S1 : 240 VAC 3A or 30 V DC 3A (resistance load), Form C (NC/NO/COM, 3 terminals) S2 : 240 VAC 3A or 30 V DC 3A (resistance load), Form A

When 4 contact outputs specified

S1 : 240 VAC 3A or 30 V DC 3A (resistance load), Form C (NC/NO/COM, 3 terminals) S2, S3, S4 : 240 V AC 3A or 30 V DC 3A (resistanceload), Form A, shared common Maximum load current on common is 3A.

Contact status:

Table 1.1

Contact

S1 NO-COM Open Open Closed Open Closed Open NC-COM Closed Closed Open Closed Open Closed S2 Open Open Closed Open Closed Open S3 when specified Open Open Closed Open Closed Open S4 when specified Open Open Closed Open Closed Open

Note: When a contact is activated, the LED on display panel turns on.

Function selected

H, L, HH, LL, HH/LL limit alarms FAIL

Power off

Power on

No alarm Alarm No alarm Alarm

Power off

Power on

Terminal

COM

1. Overview

NC NO

Ambient temperature : -5 to 45 8C Storage temperature : -25 to 70 8C Ambient humidity : 10 to 90% RH, non-condensing Installation altitude : 2000 m or less above sea level Construction : Front panel : Dust-proof and drip-proof construction IP55,

IP65 (when “/65” option specified) Materials : ABS resin and polycarbonate Power supply : Rated voltage 100 to 240 V AC (610%), 50/60 Hz Power consumption : Max. 9 VA Weight : Approx. 600g Dimensions : 96 (W) 3 96 (H) 3 120 (D) mm Mounting : Panel mount Panel cutout dimensions : 92 (W) 3 92 (H) mm Wiring : M3.5 screw terminal Grounding : grounding resistance 100 V or less

Functional specifications

Asymmetry potential adjustment range : 762 pH Slope adjustment range : 70 to 110% of theoretical value Automatic temperature compensation range : -10 to 110 8C, manual temperature

compensation available (setting range : -10 to 110 8C)

Temperature correction function (cable length correction by one-point temperature

calibration)

IM 12B11A01-01E

1-3

Calibration function

One touch automatic calibration (one or two point calibration)

Standard solution table : Selectable : JIS • NIST Table (4, 7, 9 pH)

DIN 19267 Table (4, 7, 9 pH) US Technical Buffer Table (4, 7, 10 pH)

Standard solution temperature range : 0 to 95 8C for JIS • NIST Table

0 to 90 8C for DIN 19267 Table 0 to 60 8C for US Technical Buffer Table

Manual calibration (one or two point calibration at specified setpoint(s))

Self-diagnostics function

FAIL output : pH measurement range failure, temperature measurement range failure,

temperature detection element failure, and converter failure Detection during calibration, error indication :

Standard solution temperature range failure, asymmetry potential failure,

electromotive force slope failure, stability failure Converter performance : under normal operating conditions Linearity : 60.03 pH Repeatability : 60.02 pH Transmission output accuracy : 60.3% of span Sensors connectable with PH100 : PH10FP, PH10RP, PH8EFP, PH8ERP, FU20 (no

ORP measurement available) Sensors conditionally connectable : PH8ERG, PH8EFG, other companies’ sensors (no

temperature compensation available, manual temperature compensation

required) Maximum total connection cable length : 50 m (sensor cable length included)

1-4

IM 12B11A01-01E

2. Preparation for Operation

2.1 Unpacking

When the instrument arrives, unpack the package with care and check that the instrument has not been damaged during transportation. In addition, please check that the specification matches the order, and required accessories are not missing.

2.2 Choosing an Installation Location

WARNING

To minimize the danger of shock, the converter should be mounted on the converter panel before power is applied.

2. Preparation for Operation

When choosing a mounting location: Mounting Cautions

CAUTION

(1) Mount the converter in a location which allows adequate space for access from the

rear for wiring and the like,

(2) Ideally the converter should be on the rear of a panel, so that unauthorized personnel

will not have access to the terminals, (3) It should be a place with minimal vibration, (4) It should not be exposed to corrosive gas atmospheres, (5) Temperature should be near normal (23 8C) with minimal change, (6) Humidity should be between 10% and 90% RH, (7) The converter should not be exposed to direct heat radiation, (8) The converter should not be exposed to strong magnetic fields, (9) The converter should not be exposed to moisture, (10) The converter should not be mounted near flammable materials, (11) The converter should not be exposed to strong UV light.

The case of the converter is made of flammable polycarbonate resin, and the bezel is flammable ABS resin, so the converter should not be mounted above flammable materials.

IM 12B11A01-01E

If there will be flammable materials in the vicinity, they should be separated from the converter top, bottom, left and right sides by a clearance of at least 150 mm, and the converter covered by a plated steel plate at least 1.43 mm thick, or an uncoated steel plate of thickness 1.6 mm.

2-1

150 mm

Fig. 2.1

2.3 External Dimensions

• pH Converter

150 mm

F2.1.EPS

Unit : mm

Shield cover

EXA PH100

S1S2S3

SET CAL MEAS ENT

CANCEL

118

Panel depth : 1 to 10

100

1-10 4151-60

Terminal cover

91.6

F003.EPS

111

2-2

Fig. 2.2

IM 12B11A01-01E

2.4 Panel Cutout Dimensions

2. Preparation for Operation

145 Min.

Fig. 2.3

125 Min.

+0.8 0

Unit : mm

+0.8

IM 12B11A01-01E

2-3

2.5 Mounting

Insert from this Side of panel

Large brackct (mount at top)

Panel

Terminal board

Insert driver as shown to tighten bracket

Small bracket (mount at bottom)

Fig. 2.4

Procedure 1

Cut out panel to mount instrument, cut out dimensions are shown on previous page.

Procedure 2

Insert rear of instrument (terminal block side) in panel cutout.

Procedure 3

Mount top and bottom brackets (see figure) to fix instrument to panel.

*When detector output is to be prewired, refer to Sec. 3.4(2)

WARNING

If instrument is a tight fit in cutout, do not force it as case or mounting brackets may be damaged.

2-4

IM 12B11A01-01E

WARNING

The instrument may be installed with the rear inclined at an angle up to 308 below front. Do not incline with front below rear.

2. Preparation for Operation

Up to 308

Fig. 2.5

F2.5.EPS

IM 12B11A01-01E

2-5

2-6

IM 12B11A01-01E

3. Wiring

This section explains wiring of the EXA PH100 pH converter.

WARNING

Be sure to turn off power supply, and check with a tester or the like that connected cables do not have dangerous voltages applied. Do not touch terminals if power may be applied.

The recommended specifications for wiring terminals are shown below. Use crimp-on terminals, designed to fit an ISO M3.5 screw, with an insulating sleeve.

3. Wiring

3.7mm\

Up to 7mm

Fig. 3.1

d Recommended terminals

Table 3.1

Maker

Japan AMP Co., Ltd JST Co., Ltd

model

1.25-YS3A YD1.25-3.5

For wire size:

0.3~1.65mm

Up to 7mm

3.7mm

Tightening torque

0.8N . m (8 kgf . cm) Up to or Iess

F3.1.EPS

T3.1.EPS

IM 12B11A01-01E

3-1

3.1 Pulling in Wiring

When wiring cables to terminals on the rear of the instrument, pull the cables into the instrument in the direction shown in Fig. 3.2

CAUTION

There’s a terminal wiring diagram on the instrument nameplate on the side of the instrument.

Pull in cable from left side

Terminal name Terminal name

S1(NC) S1(NO)

COM1

COM2

L N

1 2 3 4 5 6 7 8 9

11 12 13 14 15

17 18 19 20

S RE

RES

SE T1

T2 mA (1) mA (2)

Analog output cable

Converter rear panel

Power wiring

Ground wire

pH sensor cable

Fig. 3.2 Direction to pull in wiring

F3.2.EPS

3-2

IM 12B11A01-01E

3.2 Noise prevention

d Noise sources The following are typical sources of electrical noise

* Relays and contacts * Solenoid coil, solenoid valve * Power lines * Inductive loads * Inverters * Motor commutators * SCRs used for phase-angle control * Wireless transmitters * Welding equipment * High-voltage ignition systems

d Noise prevention When wiring, take the following precautions to minimize the effects of noise:

* Keep input circuit wiring as far as possible from power or ground wiring. * Shielded wires, with single-point grounding, are effective for minimizing pickup of static electric fields. * Twisted pair wire is effective in minimizing inductive noise pickup.

3. Wiring

IM 12B11A01-01E

3-3

3.3 Wiring Terminal Diagram

There are wiring terminals on the rear of the PH100 converter. Wire to terminals 1 to 10 and terminals 11 to 20 as shown in Fig. 3.3. The terminal block cannot be removed.

Row of terminals numbered 1 to 10 from top to bottom

Fig. 3.3 Cable wiring position

(1) When intermediate terminal box is used

CAUTION

Terminal size is ISO M3.5. There’s a terminal wiring diagram on the instrument nameplate on the side of the instrument.

Row of terminals numbered 11 to 20

Not used

1-10

Contact output and power wiring pH sensor and Analog output cable

31-40 21-30

PH100 Top view

11-2051-61 41-50

from top to bottom

F3.3.EPS

Contact output 1(NC)

Contact output 1(NO)

Contact output 2

Contact

*3)

output 3 Contact

*3)

output 4

Power supply

Ground to earth (grounding resistance 100V or less)

Note : Terminal numbers are indicated on the label side of the converter.

3-4

Converter Rear View

1 2 3 4 5 6 7 8 9

Terminal

name

S1(NC)

S1(NO)

COM1

S2 S3 S4

COM2

L N

Terminal name

RES

SE T1

T2 mA(1) mA(2)

11 12 13 14 15 16 17 18 19 20

Extension cable WF100-PH *2)

Output signal

Shield

Ground to earth (grounding resistance 100V or less)

Fig. 3.4 Wiring diagram when intermediate terminal box is used

Terminal box WTB100-PH *1)

RES

SE T1 T2

pH sensor

F3.4E.EPS

IM 12B11A01-01E

+ 53 hidden pages