Plug-in Type
Digital Indicating pH Meter

WIL-102-PH
Instruction ManualPreface
Thank you for purchasing our WIL-102-PH, Plug-in Type Digital Indicating pH Meter.
This manual contains instructions for the mounting, functions, operations and notes when operating theWIL-102-PH. To ensure safe and correct use, thoroughly read and understand this manual before using this
instrument.
To prevent accidents arising from the misuse of this instrument, please ensure the operator receives thismanual.

Characters Used in This Manual
Indication
Number,

/

-1

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Indication
Alphabet
Indication
Alphabet

Caution• This instrument should be used in accordance with the specifications described in the manual. If it is not
used according to the specifications, it may malfunction or cause a fire.
• Be sure to follow all of the warnings, cautions and notices. If they are not observed, serious injury or
malfunction may occur.
• The contents of this instruction manual are subject to change without notice.
• Care has been taken to ensure that the contents of this instruction manual are correct, but if there are any
doubts, mistakes or questions, please inform our sales department.
• This instrument is designed to be installed on a DIN rail within a control panel. If it is not, measures must
be taken to ensure that the operator cannot touch power terminals or other high voltage sections.
• Any unauthorized transfer or copying of this document, in part or in whole, is prohibited.
• Shinko Technos Co., Ltd. is not liable for any damage or secondary damage(s) incurred as a result ofusing this product, including any indirect damage.

Safety Precautions (Be sure to read these precautions before using our products.)
The safety precautions are classified into 2 categories: “Warning” and “Caution”.
Depending on the circumstances, procedures indicated by
Caution may result in serious
consequences, so be sure to follow the directions for usage.

Warning

Procedures which may lead to dangerous conditions and cause death orserious injury, if not carried out properly.

CautionProcedures which may lead to dangerous conditions and cause superficial
to medium injury or physical damage or may degrade or damage the product,
if not carried out properly.

2Warning• To prevent an electrical shock or fire, only Shinko or other qualified service personnel may handle
the inner assembly.
• To prevent an electrical shock, fire or damage to the instrument, parts replacement may only beundertaken by Shinko or other qualified service personnel.

SAFETY PRECAUTIONS• To ensure safe and correct use, thoroughly read and understand this manual before using this
instrument.
• This instrument is intended to be used for measuring equipment. Verify correct usage after
purpose-of-use consultation with our agency or main office. (Never use this instrument for medical
purposes with which human lives are involved.)• External protection devices such as protective equipment against excessive temperature rise, etc.
must be installed, as malfunction of this product could result in serious damage to the system or
injury to personnel. Proper periodic maintenance is also required.
• This instrument must be used under the conditions and environment described in this manual.
Shinko Technos Co., Ltd. does not accept liability for any injury, loss of life or damage occurring due
to the instrument being used under conditions not otherwise stated in this manual.

Caution with Respect to Export Trade Control Ordinance
To avoid this instrument from being used as a component in, or as being utilized in the manufactureof weapons of mass destruction (i.e. military applications, military equipment, etc.), please
investigate the end users and the final use of this instrument. In the case of resale, ensure that this
instrument is not illegally exported.

PRECAUTIONS
1. Installation Precautions

CautionThis instrument is intended to be used under the following environmental conditions (IEC61010-1):• Overvoltage category , Pollution degree 2
Ensure the mounting location corresponds to the following conditions:• A minimum of dust, and an absence of corrosive gases• No flammable, explosive gases• No mechanical vibrations or shocks• No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 ) that does notchange rapidly, and no icing• An ambient non-condensing humidity of 35 to 85 %RH• No large capacity electromagnetic switches or cables through which a large current is flowing.
• No water, oil, chemicals or the vapors of these substances can come into direct contact with the unit.
• If the WIL-102-PH is installed within a control panel, the ambient temperature of the unit – not theambient temperature of the control panel – must be kept under 50 . Otherwise the life ofelectronic parts (especially electrolytic capacitors) of the unit will be shortened.
Note: Do not install this instrument on or near flammable material even though the case of this
instrument is made of flame-resistant resin.

32. Wiring Precautions

Caution• Do not leave wire remnants in the instrument, as they could cause a fire or a malfunction.
• Use a solderless terminal with an insulation sleeve in which the M3 screw fits when wiring theWIL-102-PH.
• Tighten the terminal screw using the specified torque. If excessive force is applied to the screw
when tightening, the terminal screw may be damaged.
• This instrument does not have a built-in power switch, circuit breaker and fuse.
It is necessary to install a power switch, circuit breaker and fuse near the instrument.
(Recommended fuse: Time-lag fuse, rated voltage 250 V AC, rated current 2 A)
• For a 24 V AC/DC power source, do not confuse polarity when using direct current (DC).
• Do not apply a commercial power source to the sensor which is connected to the input terminal nor
allow the power source to come into contact with the sensor.
• Use the pH Combined Electrode Sensor in accordance with the sensor input specifications of theWIL-102-PH.
• Keep the input wires and power lines separate.
Note about the pH Combined Electrode Sensor Cable
The pH Combined Electrode Sensor cable is a highly-insulated (electrical) cable. Please handle itwith utmost care as follows.
• Do not allow terminals and socket of the pH Combined Electrode Sensor cable to come in contact
with moisture or oil of any kind. Likewise, ensure fingers are clean, otherwise the insulation will
deteriorate, resulting in unstable indication.
Be sure to keep the cable dry and clean at all times.
If the cable is stained, clean it with alcohol, and dry it completely.
• For calibration or electrode checking/replacement, the pH Combined Electrode Sensor cable should
be wired with sufficient length.
• Keep the pH Combined Electrode Sensor cable and junction cable away from electrical devices,such as motors or their power lines from which inductive interference emanates.
Connection
The pH Combined Electrode Sensor cable has the following terminals.
Code
TerminalG
Glass electrode terminal
R
Reference electrode terminal
T, T
Temperature compensation electrode terminals (Cu500)
A, B
Temperature compensation electrode terminals [Pt100 (2-wire), Pt1000]
A, B, B
Temperature compensation electrode terminals [Pt100 (3-wire)]E
Shield wire terminal
For the pH Combined Electrode Sensor with No Temperature Compensation, T, T or A, B, B cables
are not available.
E cables are available depending on the sensor type.
During operation, the pH/Temperature Display may become abnormal or unstable due to inductive
interference or noise. In this case, try [Grounding of shield wire terminal (E) (P.78)].

3. Operation and Maintenance Precautions

Caution• Do not touch live terminals. This may cause an electrical shock or problems in operation.
• Turn the power supply to the instrument OFF when retightening the terminal or cleaning.
Working on or touching the terminal with the power switched ON may result in severe injury or death
due to electrical shock.
• Use a soft, dry cloth when cleaning the instrument.
(Alcohol based substances may tarnish or deface the unit.)• As the display section is vulnerable, be careful not to put pressure on, scratch or strike it with a hard
object.
4

Contents
1. Model ........................................................................................................................................... 7
1.1 Model ...................................................................................................................................7
1.2 How to Read the Model Label ..............................................................................................7
2. Name and Functions of Instrument .............................................................................................. 8
3. Mounting to the Control Panel ..................................................................................................... 9
3.1 Site Selection .......................................................................................................................9
3.2 External Dimensions (Scale: mm) .......................................................................................9
3.3 Mounting ..............................................................................................................................9
4. Removal ...................................................................................................................................... 11
5. Wiring ......................................................................................................................................... 12
5.1 Lead Wire Solderless Terminal...........................................................................................13
5.2 Terminal Arrangement .......................................................................................................13
5.3 Wire the Communication Line ............................................................................................14
6. Outline of Key Operation and Setting Groups ............................................................................ 16
6.1 Outline of Key Operation ....................................................................................................16
6.2 Setting Groups ...................................................................................................................16
7. Key Operation Flowchart ............................................................................................................ 18
8. Setup .......................................................................................................................................... 20
8.1 Turn the Power Supply to the WIL-102-PH ON..................................................................20
8.2 pH Input Group...................................................................................................................20
8.3 Temperature Input Group ...................................................................................................28
8.4 Basic Function Group .........................................................................................................29
8.5 Zero/Slope Indication Group ..............................................................................................37
9. Calibration .................................................................................................................................. 38
9.1 pH Calibration Mode ..........................................................................................................38
9.1.1 Automatic Calibration ...............................................................................................38
9.1.2 Manual Calibration ...................................................................................................40
9.1.3 Error Code during pH Calibration .............................................................................41
9.2 Temperature Calibration Mode ...........................................................................................42
9.3 Transmission Output 1 Adjustment Mode ...........................................................................43
9.4 Transmission Output 2 Adjustment Mode ...........................................................................44
10. Measurement ........................................................................................................................... 45
10.1 Starting Measurement ......................................................................................................45
10.2 A
Output ....................................................................................................................45
10.3 pH Input Error Alarm ........................................................................................................46
10.4 Error Output .....................................................................................................................46
10.5 Fail Output........................................................................................................................46
10.6 Cleansing Output .............................................................................................................46
10.7 Manual Cleansing Mode ..................................................................................................47
10.8 Error Code during Measurement ......................................................................................48
10.9 Transmission Output 1 and 2 ...........................................................................................48
10.10 pH Fluctuation Alarm Output ..........................................................................................48
11. Communication ......................................................................................................................... 49
11.1 System Configuration Example ........................................................................................49
11.2 Setting Method of the pH Meter........................................................................................49
11.3 Communication Procedure ...............................................................................................50
11.4 Shinko Protocol ................................................................................................................51
11.4.1 Transmission Mode ................................................................................................51
11.4.2 Command Configuration ........................................................................................51
11.4.3 Checksum Calculation ...........................................................................................525

11.5 MODBUS Protocol ...........................................................................................................53
11.5.1 Transmission Mode ................................................................................................53
11.5.2 Data Communication Interval .................................................................................53
11.5.3 Message Configuration ..........................................................................................53
11.5.4 Message Example .................................................................................................55
11.6 Communication Command Table......................................................................................57
11.6.1 Notes about Setting/Reading Command ................................................................57
11.6.2 Setting/Reading Command ....................................................................................58
11.6.3 Read Only Command ............................................................................................6411.7 pH Calibration, Transmission Output 1 and 2 Adjustment via Communication Command .......66
11.7.1 pH Calibration ........................................................................................................66
11.7.2 Transmission Output 1 Adjustment ........................................................................68
11.7.3 Transmission Output 2 Adjustment ........................................................................68
11.8 Notes on Programming Monitoring Software ....................................................................69
11.8.1 How to Speed up the Scan Time ...........................................................................69
11.8.2 How to Read the Set Value Changes Made by Front Keypad Operation ...............69
11.8.3 Note when Sending All Set Values Simultaneously ...............................................69
12. Specifications ........................................................................................................................... 70
12.1 Standard Specifications ...................................................................................................70
12.2 Optional Specifications .....................................................................................................75
13. Troubleshooting ........................................................................................................................ 77
13.1 Indication ..........................................................................................................................77
13.2 Key Operation ..................................................................................................................78
13.3 Communication ................................................................................................................79
14. Character Tables ...................................................................................................................... 80

6

1. Model
1.1 Model
WIL-10
Input Points
Input

2
2

-PH

,
2 points

PH

pH Combined
Electrode Sensor

Pt spec (*1)

Pt1000
Pt100
Cu500/25

Cu spec (*1)
100 to 240 V AC (standard)
Power Supply Voltage
1
24 V AC/DC (*2)
EVT
A
output (A11, A12, A21, A22)
OptionTA
Transmission output 1 (*3)
TA2Transmission output 1, Transmission output 2(*1) This input temperature specification was specified at the time of ordering.
(*2) Power supply voltage 100 to 240 V AC is standard.
When ordering 24 V AC/DC, enter “1” in Power Supply Voltage after “PH”.
(*3) If the TA option is ordered, the EVT option (A1 output only) will be automatically added.
1.2 How to Read the Model Label
The model label is attached to the left side of the case.
• Label on the left side of the case
Model, Option
pH input
Temperature input
Power supply voltage, Power consumption
Serial number(Fig. 1.2-1)

7

2. Name and Functions of InstrumentPWR Indicator
pH Display

Temperature Display
T/R Indicator

A1 Indicator

A2 Indicator
UP keyMODE key

DOWN key

SET/RESET key
Light Sensor(Fig. 2-1)

Displays
pH Display
Temperature
Display
Action IndicatorsPWR Indicator
A1 Indicator

pH or characters in setting mode are indicated in red.
Indications differ depending on the selections in [Display selection (p.32)].
Temperature or values in setting mode are indicated in red.
Indications differ depending on the selections in [Display selection (p.32)].

T/R Indicator

When power supply to the instrument is turned ON, the yellow LED is lit.
When A1 output (Contact output 1) is ON, the red LED lights.
(Turns OFF if TA2 option is added.)
When A2 output (Contact output 2) is ON, the yellow LED lights.
(Turns OFF if TA option or TA2 option is added.)
The yellow LED lights during Serial communication TX output (transmitting).

Keys
UP keyDOWN key
MODE key
SET/RESET key

Increases the numeric value.
Decreases the numeric value.
Selects a setting group.
Switches the setting modes, and registers the set value.

A2 Indicator

Light Sensor

Automatically measures and controls brightness of the pH Display,
Temperature Display and Action indicators.

NoticeWhen setting the specifications and functions of this instrument, connect mains power cable to terminals
13 and 14 first, then set them referring from “6. Outline of Key Operation and Setting Groups” to “8.
Setup (pp.16 to 37)” before performing “3. Mounting to the Control Panel (p.9)” and “5. Wiring (p.12)”.

8

3. Mounting to the Control Panel
3.1 Site Selection

CautionUse within the following temperature and humidity ranges.
Temperature: 0 to 50 (32 to 122 ) (No icing), Humidity: 35 to 85 %RH (Non-condensing)If the WIL-102-PH is installed within a control panel, the ambient temperature of the unit – notthe ambient temperature of the control panel – must be kept under 50 . Otherwise the lifeof electronic parts (especially electrolytic capacitors) of the unit will be shortened.
This instrument is intended to be used under the following environmental conditions(IEC61010-1): Overvoltage category , Pollution degree 2
Ensure the mounting location corresponds to the following conditions:• A minimum of dust, and an absence of corrosive gases• No flammable, explosive gases• No mechanical vibrations or shocks• No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 ) that does notchange rapidly• An ambient non-condensing humidity of 35 to 85 %RH• No large capacity electromagnetic switches or cables through which a large current is flowing• No water, oil, chemicals or the vapors of these substances can come into direct contact with the unit
3.2 External Dimensions (Scale: mm)
Socket (sold separately)

3

85

DIN rail

10.8

79

30

3.3

108
(Fig. 3.2-1)

3.3 Mounting(1) Hook the upper part of the socket on the DIN rail, and mount it (A clicking sound is heard).
Hook the upper part of thesocket on the DIN rail.

(Fig. 3.3-1)
9

Caution
Before inserting the WIL-102-PH into the socket, wire the unit while referring to Section “5. Wiring”(p.12).
(2) Check that the Lock Release has been lowered.

Lock Release(Fig. 3.3-2)(3) Insert the WIL-102-PH into the socket.

When inserting, be careful about
the position of pins and slots.
(Fig. 3.3-3)(4) Fix the WIL-102-PH and the socket by pushing the Lock Release up.

Check that the WIL-102-PH and the socket
are locked by pushing the Lock Release up.

Lock Release(Fig. 3.3-4)
10

4. Removal(1) Turn the power supply to the unit OFF.
(2) Pull the Lock Release down, and release the WIL-102-PH from the socket.
Check that the WIL-102-PH andthe socket are unlocked by pulling
the Lock Release down.

Lock Release(Fig. 4-1)
(3) Separate the WIL-102-PH from the socket.

(Fig. 4-2)(4) Remove the socket from the DIN rail by pulling the socket Lock Release (at the bottomof the socket) down.

Lock Release(Fig. 4-3)
11

5. Wiring
Warning
Turn the power supply to the instrument off before wiring or checking.
Working on or touching the terminal with the power switched on may result in severe injury
or death due to electrical shock.

Caution• Do not leave wire remnants in the instrument, as they could cause a fire or a malfunction.
• Use a solderless terminal with an insulation sleeve in which the M3 screw fits when wiring the unit.
• Tighten the terminal screw using the specified torque. If excessive force is applied to the screw
when tightening, the terminal screw may be damaged.
• This instrument does not have a built-in power switch, circuit breaker and fuse.
It is necessary to install a power switch, circuit breaker and fuse near the instrument.
(Recommended fuse: Time-lag fuse, rated voltage 250 V AC, rated current 2 A)
• For a 24 V AC/DC power source, do not confuse polarity when using direct current (DC).
• Do not apply a commercial power source to the sensor which is connected to the input terminal
nor allow the power source to come into contact with the sensor.
• Use the pH Combined Electrode Sensor in accordance with the sensor input specifications of this unit.
• Keep the input wires and power lines separate.
Note about the pH Combined Electrode Sensor Cable
The pH Combined Electrode Sensor cable is a highly-insulated (electrical) cable. Please handle itwith utmost care as follows.
• Do not allow terminals and socket of the pH Combined Electrode Sensor cable to come in contact
with moisture or oil of any kind. Likewise, ensure fingers are clean, otherwise the insulation will
deteriorate, resulting in unstable indication. Be sure to keep the cable dry and clean at all times.
If the cable is stained, clean it with alcohol, and dry it completely.
• For calibration or electrode checking/replacement, the pH Combined Electrode Sensor cable should
be wired with sufficient length.
Keep the pH Combined Electrode Sensor cable and junction cable away from electrical devices, suchas motors or their power lines from which inductive interference emanates.
Connection
The pH Combined Electrode Sensor cable has the following terminals.
Code
G
R
T, T
A, B
A, B, BE

Terminal
Glass electrode terminal
Reference electrode terminal
Temperature compensation electrode terminals (Cu500)
Temperature compensation electrode terminals [Pt100 (2-wire), Pt1000]
Temperature compensation electrode terminals [Pt100 (3-wire)]
Shield wire terminal

For the pH Combined Electrode Sensor with No Temperature Compensation, T, T or A, B, B cables
are not available.
E cables are available depending on the sensor type.
During operation, the pH/Temperature Display may become abnormal or unstable due to inductive
interference or noise. In this case, try [Grounding of shield wire terminal (E) (P.78)].

12

5.1 Lead Wire Solderless Terminal
Use a solderless terminal with an insulation sleeve in which an M3 screw fits as follows.
The tightening torque should be 0.63 N•m.
Model

Y-typeNichifu Terminal Industries CO., LTD.

TMEV1.25Y-3S

3.2 mm minimum

Manufacturer

5.9 mm max.

Solderless
Terminal

4 mm max.

4.8 mm minimum(Fig. 5.1-1)

5.2 Terminal Arrangement
Electrode sensor terminals ( 1 - 2 )pH Combined Electrode Sensor
E:
Shield wire terminal ( 3 )pH Combined Electrode Sensor
T, T:
Temperature compensation sensor
terminals ( 5 - 6 )Temperature element: Cu500 (2-wire)
A, B:
Temperature compensation sensor
terminals ( 5 - 6 )Temperature element: Pt100 (2-wire),
Pt1000A, B, B: Temperature compensation sensor
terminals ( 5 - 6 - 7 )Temperature element: Pt100 (3-wire)
When the EVT option is ordered
A1: A1 output terminals ( 9 - 10 )A2: A2 output terminals ( 11 - 12 )When the TA option is ordered
A1: A1 output terminals ( 9 - 10 )TRANSMISSION OUTPUT1:
Transmission output 1 terminals ( 11 - 12 )When the TA2 option is ordered
TRANSMISSION OUTPUT2:
Transmission output 2 terminals ( 9 - 10 )TRANSMISSION OUTPUT1:
Transmission output 1 terminals ( 11 - 12 )POWER SUPPLY: Power terminals ( 13 - 14 )24 V AC/DC (Enter “1” after the input code.)
RS-485: Serial Communication modular jack

G, R:

Modular Jack Pin (WIL-102-PH side arrangement)(Fig. 5.2-1)

When no option is ordered, A1, A2,
TRANSMIT OUTPUT1 and TRANSMITOUTPUT2 terminals are not equipped.
13

5.3 Wire the Communication Line
Connect to the modular jack at the bottom of the instrument, using CDD or CPP (sold separately).
• Wiring Example Using USB communication cable CMC-001-3 (sold separately)
WIL-102-PH (Max. 31 units)

Host computer
USB port

CMC-001-3 (sold separately)

CDD or CPP (sold separately)

WIL-102- PH bottom(Fig. 5.3-1)• Wiring Example Using a Communication Converter IF-400
IF-400 (Sold Separately)
WIL-102-PH (Max 31 units)
ShieldWire

FG

Host Computer
D-sub 9-pin Connector

CDD or CPP (sold separately)

Bottom of IF-400, WIL-102-PH(Fig. 5.3-2)
14

Shield Wire
Be sure to ground only one end of the shield wire so that current cannot flow to the shield wire.
If both ends of the shield wire are grounded, the circuit will be closed, resulting in a ground loop.
This may cause noise.
Be sure to ground the FG.
Recommended cable: OTSC-VB 2PX0.5SQ (made by Onamba Co., Ltd.) or equivalent(Use a twisted pair cable.)

Terminator (Terminal Resistor)
The terminator is mounted at the end of the wire when connecting multiple peripheral devices toa personal computer. The terminator prevents signal reflection and disturbance.
Do not connect a terminator with the communication line because each WIL-102-PH has built-in
pull-up and pull-down resistors.
Communication converter IF-400 (sold separately) has a built-in terminal resistor.

15

6. Outline of Key Operation and Setting Groups
6.1 Outline of Key Operation
Setting items are divided into groups, and group selection has to be made with keypads.
Press thekey in pH/Temperature Display Mode, or Cleansing Output Mode. The unit enters
Group Selection mode.
Select a group with the, and press the. The unit enters each setting item.
To set each setting item, use theorkey, and register the set value with thekey.
6.2 Setting Groups
Abbreviations:Temp.: Temperature
Calib.: Calibration
Adjust: Adjustment
Trans.: Transmission

Power ON+
pH/Temperature Display
Mode, or
Cleansing Output Mode(*1)

(3 sec.)Manual Cleansing mode

+

(*2)

(3 sec.)Temp. Calib. mode+

(3 sec.)
pH Calib. mode+

(3 sec.)Transmission output 1
Zero adjust mode

Transmission output 1
Span adjust mode

(3 sec.)Transmission output 2
Zero adjust mode

Transmission output 2
Span adjust mode+

Group Selection ModeSee pages 20-37 for details of each setting item.

pH Input GrouppH 7 calibration
standard

pH inputs
for moving average

Temperature Input
Group

Electrode RTD

Temperature inputs
for moving average

Basic FunctionGroup

Set value lockTrans. output 2 value
HOLD when cleansing

Zero/Slope
Indication Group

Zero indication

Slope indication(*1) During pH/Temperature Display Mode, or Cleansing Output Mode, indicates the item selected in[Display selection (p.32)]. If power is turned ON again, the last mode (pH/Temperature Display Mode,or Cleansing Output Mode) at power OFF will resume.
(Cleansing output) is selected in [A11, A12, A21, A22 type], the unit can enter Manual(*2) If
Cleansing mode.
After cleansing action is complete, the unit automatically reverts to Cleansing Output Mode.
16

Available only when the TA or TA2 option is ordered.

About Key Operation•+(3 sec): Press and hold the

key andkey (in that order) together for 3 seconds.

The unit will proceed to Manual Cleansing mode.
•+(3 sec): Press and hold the

key andkey (in that order) together for 3 seconds.

The unit will proceed to Temperature calibration mode.
•+(3 sec): Press and hold the

key andkey (in that order) together for 3 seconds.

The unit will proceed to pH calibration mode.
•+(3 sec): Press and hold the

key andkey (in that order) together for 3 seconds.

The unit will proceed to Transmission output 1 Zero adjustment mode.
•+(3 sec): Press and hold the

key andkey (in that order) together for 3 seconds.

The unit will proceed to Transmission output 2 Zero adjustment mode.
•or: Press theorkey. The unit will proceed to the next setting item, illustrated byan arrow.
•or: Press theor

key multiple times until the desired setting mode appears.

• To revert to pH/Temperature Display Mode, or Cleansing Output Mode, press and hold thefor 3 seconds while in any mode.

17

key

7. Key Operation Flowchart

Abbreviations:
H/L: High/Low
Temp.: TemperaturePower ON
pH/Temp. Display Modeor Cleansing Output Mode++

(3 sec)(3 sec)Manual Cleansing Mode(P.47)
Temperature
Calibration Mode

(P.42)+(3 sec)

pH Calibration Mode(P.38)+(3 sec)Transmission output 1
Zero adjust mode (P.43)

Transmission output 1
Span adjust mode (P.43)+(3 sec)Transmission output 2
Zero adjust mode (P.44)

Transmission output 2
Span adjust mode (P.44)

pH Input Group

Temperature Input
Group

pH 7 calibration
standard(P.20)A21 ON side

Electrode RTD(P.23)

A12 pH fluctuation
alarm band
(P.25)

2nd solution

A21 OFF side
(P.23)

A21 pH fluctuation
alarm band
(P.25)

Reference temperature(P.28)

Decimal point place(P.20)

A22 hysteresis type
(P.24)

A22 pH fluctuation
alarm band
(P.25)

Decimal point place(P.28)

A11 type

A22 ON side
(P.24)A11 H/L limits independent
lower side band (P.25)

Pt100 input wire type
(P.28)
Cable length correction(P.28)(P.20)(P.21)
A12 type

(*2)

(*2)

(*2)

A22 OFF side(*3)

(P.28)(P.22)(*2)(P.24)A12 H/L limits independent
lower side band (P.25)(P.22)A11 ON delay time
(P.24)A21 H/L limits independent
lower side band (P.26)

Cable cross-sectionarea(P.28)(P.22)A12 ON delay time
(P.24)A22 H/L limits independent
lower side band (P.26)

Temperature inputs formoving average (P.28)(P.22)A21 ON delay time
(P.24)A11 H/L limits independent
upper side band (P.26)(P.22)A22 ON delay time
(P.24)A12 H/L limits independent
upper side band (P.26)(P.22)A11 OFF delay time
(P.24

A21 H/L limits independent
upper side band (P.26)(P.22)A12 OFF delay time
(P.24)A22 H/L limits independent
upper side band (P.26)

A11 hysteresis type(P.23)A21 OFF delay time
(P.24)

A11 hysteresis

A11 ON side

A22 OFF delay time
(P.25)

A12 hysteresis(P.23)

A11 pH fluctuation
alarm time
(P.25)

A21 hysteresis(P.23)

A12 hysteresis type(P.23)

A12 pH fluctuation
alarm time
(P.25)

A22 hysteresis

A12 ON side
(P.23)

A21 pH fluctuation
alarm time
(P.25)

A
output when
input errors occur(P.27)(P.23)

A22 pH fluctuation
alarm time
(P.25)

pH input filter time
constant(P.27)

A21 hysteresis type(P.23)

A11 pH fluctuation
alarm band
(P.25)

PH input sensor
correction(P.27)

A21 type

A22 type

A11 value(*1)

A12 value(*1)

A21 value(*1)

A22 value
(*1)

(*2)

A11 OFF side
(*2)

(*2)

A12 OFF side(*2)①

(P.26)(P.26)(P.26)(P.26)

18

pH inputs for moving
average(P.27)②

●

About Setting Items
pH 7 calibration
standard(P.20)
Transmission output 1
type(P.30)• Upper left: pH Display: Indicates the setting item characters. • Lower left: Temperature Display: Indicates the factory default.
• Right side: Indicates the setting item and reference page.
Setting item in shaded section will be displayed only when the corresponding option is ordered.
If the TA option is added, A2 related setting items are not available.
If the TA2 option is added, A1 and A2 related setting items are not available.

(*1): Factory default value is different depending on the A
type selection. pH input: pH 0.00, Temperature input: 0.0(*2): Factory default value is different depending on the A
type selection. pH input: pH 0.10, Temperature input: 1.0(*3): Factory default value is different depending on the input spec. Pt spec:, Cu spec:● About Key Operation・ +(3 sec): Press and hold the,keys (in that order) for 3 sec. The unit enters Manual Cleansing mode.
・ +(3 sec): Press and hold the,keys (in that order) for 3 sec. The unit enters Temperature calibration mode.
・+(3 sec): Press and hold the,keys (in that order) for 3 sec. The unit enters pH calibration mode.
・ +(3 sec): Press and hold the,keys (in that order) for 3 sec. The unit enters Transmission output 1 Zero adjustment mode.
・+(3 sec): Press and hold the,keys (in that order) for 3 sec. The unit enters Transmission output 2 Zero adjustment mode.
・or: Press theorkey. The unit enters the next setting item.
・To revert to pH/Temperature Display Mode, or Cleansing Output Mode, press and hold the
key for 3 sec while in any mode.
①

Basic Function GroupSet value lockZero/Slope Indication
Group
Display selection(P.29)

A2 pH input error alarm time
when Aoutput OFF(P.32)

Zero indication(P.37)(P.35)
Communication
protocol(P.29)

Indication time
(P.32)

pH input error alarmtime unit(P.36)

Instrument number(P.29)

Temp.Display when no
temp. compensation(P.32)

Number of cleansing
cycles
(P.36)

Communication
speed(P.29)

A1 output allocation(P.32)

Cleansing interval(P.36)

Data bit/Parity

Cleansing time

(P.29)

A2 output allocation(P.32)(P.29)

Output ON time whenA1 output ON(P.33)

Restore time after
cleansing(P.36)

Transmmision output 1
type(P.30)

Output OFF time whenA1 output ON(P.33)

Trans. output 1 statuswhen cleansing (P.36)

Transmmision output 1
high limit(P.30)

Output ON time whenA2 output ON(P.33)

Trans. output 1 value
HOLD when cleansing(P.36)

Transmmision output 1
low limit(P.30)

Output OFF time whenA2 output ON(P.33)

Trans. output 2 statuswhen cleansing (P.36)

Transmmision output 2
type(P.30)

A1 pH input error alarm
A
type(P.34)

Trans. output 2 value
HOLD when cleansing(P.36)

Transmmision output 2high limit(P.30)

A2 pH input error alarm
A
type(P.34)

Transmmision output 2
low limit(P.31)

A1 pH input error alarm band
when Aoutput ON

Stop bit(P.36)(P.34)
Trans. output 1 statuswhen calibrating (P.31)

A1 pH input error alarm time
when Aoutput ON(P.34)
Trans. output 1 value
HOLD when calibrating(p.31)

A1 pH input error alarm band
when Aoutput OFF

Trans. output 2 statuswhen calibrating (P.31)

A1 pH input error alarm time
when Aoutput OFF(P.34)(P.35)
Trans. output 2 value
HOLD when calibrating(p.31)

A2 pH input error alarm band
when Aoutput ON

pH calibration
Auto/Manual

A2 pH input error alarm time
when Aoutput ON(P.31)(P.35)(P.35)
Auto-light function(P.31)

A2 pH input error alarm band
when Aoutput OFF(P.35)②

19

Slope indication(P.37)

Abbreviations:
Trans: Transmission
Temp.:Temperature8. Setup
Setup should be done before using this instrument, according to the user’s conditions:
Setting the 2nd Solution, A11, A12, A21, A22 types, Electrode RTD, Communication, pH Calibration
Auto/Manual, etc.
Setup can be conducted in the pH Input group, Temperature Input Group and Basic Function Group.
If the user’s specification is the same as the factory default of the WIL-102-PH, or if setup has alreadybeen completed, it is not necessary to set up the instrument. Proceed to Section “9. Calibration (p.38)”.
8.1 Turn the Power Supply to the WIL-102-PH ON.
For approx. 4 seconds after the power is switched ON, the input characters are indicated on the pH
Display and Temperature Display.
Depending on the input specification, indication on the Temperature Display differs as follows.
Pt spec
Item selected in
Item selected inpH
Temperature[Electrode RTD (p.28)][Pt100 input wire type (p.28)]
Display
Display
Unlit: No temperaturecompensation: Pt1000: Pt100

Cu specpH
Display

Temperature
Display
Unlit: 2-wire type
: 3-wire type

Item selected in[Electrode RTD (p.28)]: No temperaturecompensation: Cu500
During this time, all outputs are in OFF status, and all LED indicators except the PWR indicator turns off.
After that, measurement starts, indicating the item selected in [Display selection (p.32)].
This status is called pH/Temperature Display Mode, or Cleansing Output Mode.
8.2 pH Input GroupTo enter the pH Input group, follow the procedure below.
1
Press thekey in pH/Temperature Display Mode, or Cleansing Output Mode.
2
Press thekey.
The unit proceeds to the pH Input group, and ’pH 7 calibration standard‘ appears.
Character
Setting Item, Function, Setting Range
Factory Default
pH 7 calibration standardJIS• Selects the pH 7 calibration value standard.
• Not available if(Manual) is selected in [pH calibration Auto/Manual].
•: JIS (Japanese Industrial Standards): US standard
2nd solution
pH 4• Selects the 2nd solution for the automatic pH calibration from pH 2, pH 4, pH 9,
pH 10 (JIS). [The 1st solution is fixed at pH 7 (JIS or US standard).]• Not available if(Manual) is selected in [pH calibration Auto/Manual].
•: pH 2: pH 4: pH 9: pH 10(JIS: Japanese Industrial Standards)
Decimal point place
2 digits after decimal point• Selects the decimal point place.
•: No decimal point: 1 digit after decimal point: 2 digits after decimal point
20

Character

Setting Item, Function, Setting Range
Factory Default
A11 type
No action• Selects an A11 type.
Note: If A11 type is changed, A11 value defaults to 0.00.
•: No action: pH input low limit action (Fig. 8.2-1): pH input high limit action (Fig. 8.2-1): Temperature input low limit action (Fig. 8.2-1): Temperature input high limit action (Fig. 8.2-1): Error output [When the error type is “Error”(Table 8.2-1), the output is turned ON.]
: Fail output [When the error type is “Fail” (Table 8.2-1), the output is turned ON.]
: Cleansing output [10.6 Cleansing Output (P.46, 47)]
: pH fluctuation alarm output [10.10 pH Fluctuation Alarm Output (P.48)]: pH input High/Low limits independent action (Fig. 8.2-2): Temperature input High/Low limits independent action (Fig. 8.2-2)• A11 Action (Activated based on the indication value.)
pH input low limit action,
pH input high limit action,
Temperature input low limit action
Temperature input high limit action
If Medium Value is selected in [A11 hysteresistype]:

If Medium Value is selected in [A11 hysteresistype]:A11 ON sides

A11 ON sides
ON

ON

OFF

OFF
A11 value
If Reference Value is selected in [A11hysteresis type]:
A11 ON side*

A11 OFF side*

A11 value
If Reference Value is selected in [A11hysteresis type]:
A11 OFF side*
A11 ON side*

ON

ON

OFF

OFF
A11 valueA11 value(Fig. 8.2-1)* Setting Example:
If [A11 ON side ()] is set to 0.00 or 0.0, A11 output can be turned ONat the value set in [A11 value ()].
If [A11 OFF side ()] is set to 0.00 or 0.0, A11 output can be turned OFF
at the value set in [A11 value ()].

pH input High/Low limits independent action,
Temperature input High/Low limits independent action
A11 hysteresis

A11 hysteresis

ONOFF
A11 High/Low limits
independent lower side bandA11 value(Fig. 8.2-2)
21

A11 High/Low limits
independent upper side bandCharacter

Setting Item, Function, Setting Range
Factory Default• Error output, Fail output(Table 8.2-1)
Error
Error
Description
Type
Contents
Response Speed When calibrating, the response of the pH Combined
Error
Electrode Sensor is slow.
Error
When the difference between the input and each of
the 1st and 2nd solutions are within pH 1.50, andinput fluctuation is over pH 0.05 (in 10 seconds ofassessment cycles) for 5 minutes, this is assumed
to be an error.
However, if input fluctuation is less than or equal topH 0.05, this is assumed to be within the normal
range.
Electrode
When calibrating, sensitivity of the pH Combined
Error
Sensitivity Error
Electrode Sensor has deteriorated.
The difference between 1st and 2nd standard solution
value after calibration is less than or equal to pH 2.00.
Asymmetry
When calibrating pH 7, the difference in electromotive
Error
Potential Error
force between the sensor-measured value andstandard value exceeds the equivalent of pH 1.50.
Standard
The
specified standard solution has not been used.
Error
Solution Error
When pH 1.50 is exceeded for the 1st & 2nd solutions.
Solution TemWhen temperature is higher than (and including) 55
Error
perature Error
at pH 10 solution.
Outside Temp.
Measured temperature has exceeded 110.0 .
Error
Compen. Range
Outside Temp.
Measured temperature is less than 0.0 .
Error
Compen. Range
Temp. Sensor
Temperature sensor lead wire is burnt out.
FailBurnout
Temp. Sensor
Temperature sensor lead wire is short-circuited.
Fail
Short-circuited(Abbreviations: Temp.: Temperature,

Compen.: Compensation)

A12 type
No action• Selects an A12 type.
Note: If A12 type is changed, A12 value defaults to 0.00.
• For the selection item and action, refer to [A11 type (pp. 21, 22)].
A21 type
No action• Selects an A21 type.
Note: If A21 type is changed, A21 value defaults to 0.00.
• For the selection item and action, refer to [A11 type (pp. 21, 22)].
A22 type
No action• Selects an A22 type.
Note: If A22 type is changed, A22 value defaults to 0.00.
• For the selection item and action, refer to [A11 type (pp. 21, 22)].
A11 value
pH input: pH 0.00, Temperature input: 0.0• Selects an A11 value.
• Not available if(No action),(Error output),(Fail output ),(Cleansing output) is selected in [A11 type].
• Setting range:
pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.
A12 value
pH input: pH 0.00, Temperature input: 0.0• Selects an A12 value.
• For the indication condition and setting range, refer to [A11 type (pp. 21, 22)].
A21 value
pH input: pH 0.00, Temperature input: 0.0• Selects an A21 value.
• For the indication condition and setting range, refer to [A11 type (pp. 21, 22)].
A22 value
pH input: pH 0.00, Temperature input: 0.0• Selects an A22 value.
• For the indication condition and setting range, refer to [A11 type (pp. 21, 22)].
22

Character

Setting Item, Function, Setting Range
Factory Default
A11 hysteresis type
Reference Value• Selects A11 hysteresis type (Medium or Reference Value).
• Not available if(No action),(Error output),(Fail output ),(Cleansing output) is selected in [A11 type].
•: Medium Value
Sets the same value for both ON and OFF sides in relation to A11 value.
Only ON side needs to be set.
: Reference Value
Sets individual values for ON and OFF sides in relation to A11 value.
Both ON and OFF sides need to be set individually.
A11 ON side
pH input: pH 0.10, Temperature input: 1.0• Sets the span of A11 ON side.
If(Medium Value) is selected in [A11 hysteresis type], the span of ON/OFFside will be the same value.
(No action),(Error output),(Fail output ),• Not available if(Cleansing output) is selected in [A11 type].
• Setting range:
pH input: pH 0.00 to 4.00 (*)
Temperature input: 0.0 to 10.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.
A11 OFF side
pH input: pH 0.10, Temperature input: 1.0• Sets the span of A11 OFF side.
• Not available if(Medium Value) is selected in [A11 hysteresis type].
(No action),(Error output),(Fail output ),• Not available if(Cleansing output) is selected in [A11 type].
• Setting range:
pH input: pH 0.00 to 4.00 (*)
Temperature input: 0.0 to 10.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.
A12 hysteresis type
Reference Value• Selects A12 hysteresis type (Medium or Reference Value).
• For the indication condition and selection item, refer to [A11 hysteresis type].
A12 ON side
pH input: pH 0.10, Temperature input: 1.0• Sets the span of A12 ON side.
If(Medium Value) is selected in [A12 hysteresis type], the span of ON/OFFside will be the same value.
• For the indication condition and setting range, refer to [A11 ON side].
A12 OFF side
pH input: pH 0.10, Temperature input: 1.0• Sets the span of A12 OFF side.
• For the indication condition and setting range, refer to [A11 OFF side].
A21 hysteresis type
Reference Value• Selects A21 hysteresis type (Medium or Reference Value).
• For the indication condition and selection item, refer to [A11 hysteresis type].
A21 ON side
pH input: pH 0.10, Temperature input: 1.0• Sets the span of A21 ON side.
If(Medium Value) is selected in [A21 hysteresis type], the span of ON/OFFside will be the same value.
• For the indication condition and setting range, refer to [A11 ON side].
A21 OFF side
pH input: pH 0.10, Temperature input: 1.0• Sets the span of A21 OFF side.
• For the indication condition and setting range, refer to [A11 OFF side].

23

Character

Setting Item, Function, Setting Range
Factory Default
A22 hysteresis type
Reference Value• Selects A22 output hysteresis type (Medium or Reference Value).
• For the indication condition and selection item, refer to [A11 hysteresis type (p.23)].
A22 ON side
pH input: pH 0.10, Temperature input: 1.0• Sets the span of A22 ON side.
If(Medium Value) is selected in [A22 hysteresis type], the span of ON/OFFside will be the same value.
• For the indication condition and setting range, refer to [A11 ON side (p.23)].
A22 OFF side
pH input: pH 0.10, Temperature input: 1.0• Sets the span of A22 OFF side.
• For the indication condition and setting range, refer to [A11 OFF side (p.23)].
0 seconds
A11 ON delay time
• Sets A11 ON delay time.
The A11 output does not turn ON (under the conditions of turning ON) until the time
set in [A11 ON delay time] elapses.
• Not available if(No action),(Error output),(Fail output ),(Cleansing output) is selected in [A11 type].
• Setting range: 0 to 9999 seconds
A12 ON delay time
0 seconds• Sets A12 ON delay time.
The A12 output does not turn ON (under the conditions of turning ON) until the time
set in [A12 ON delay time] elapses.
• For the indication condition and setting range, refer to [A11 ON delay time].
A21 ON delay time
0 seconds• Sets A21 ON delay time.
The A21 output does not turn ON (under the conditions of turning ON) until the time
set in [A21 ON delay time] elapses.
• For the indication condition and setting range, refer to [A11 ON delay time].
A22 ON delay time
0 seconds• Sets A22 ON delay time.
The A22 output does not turn ON (under the conditions of turning ON) until the time
set in [A22 ON delay time] elapses.
• For the indication condition and setting range, refer to [A11 ON delay time].
A11 OFF delay time
0 seconds• Sets A11 OFF delay time.
The A11 output does not turn OFF (under the conditions of turning OFF) until the time
set in [A11 OFF delay time] elapses.
• Not available if(No action),(Error output),(Fail output ),(Cleansing output) is selected in [A11 type].
• Setting range: 0 to 9999 seconds
A12 OFF delay time
0 seconds• Sets A12 OFF delay time.
The A12 output does not turn OFF (under the conditions of turning OFF) until the time
set in [A12 OFF delay time] elapses.
• For the indication condition and setting range, refer to [A11 OFF delay time].
A21 OFF delay time
0 seconds• Sets A21 OFF delay time.
The A21 output does not turn OFF (under the conditions of turning OFF) until the time
set in [A21 OFF delay time] elapses.
• For the indication condition and setting range, refer to [A11 OFF delay time].

24

Character

Setting Item, Function, Setting Range
Factory Default
A22 OFF delay time
0 seconds• Sets A22 OFF delay time.
The A22 output does not turn OFF (under the conditions of turning OFF) until the time
set in [A22 OFF delay time] elapses.
• For the indication condition and setting range, refer to [A11 OFF delay time (p.24)].
A11 pH fluctuation alarm time
0 hours• Sets time to assess A11 pH fluctuation alarm.
Disabled when set to 0 (zero).
• Available only when
(pH fluctuation alarm output) is selected in [A11 type].
• Setting range: 0 to 72 hours
A12 pH fluctuation alarm time
0 hours• Sets time to assess A12 pH fluctuation alarm.
• For the action, indication condition and setting range, refer to [A11 pH fluctuation alarmtime].
A21 pH fluctuation alarm time
0 hours• Sets time to assess A21 pH fluctuation alarm.
• For the action, indication condition and setting range, refer to [A11 pH fluctuation alarmtime].
A22 pH fluctuation alarm time
0 hours• Sets time to assess A22 pH fluctuation alarm.
• For the action, indication condition and setting range, refer to [A11 pH fluctuation alarmtime].
A11 pH fluctuation alarm band
pH 0.00• Sets the band to assess A11 pH fluctuation alarm.
Disabled when set to pH 0.00.
• Available only when
(pH fluctuation alarm output) is selected in [A11 type].
• Setting range: pH 0.00 to 14.00
A12 pH fluctuation alarm band
pH 0.00• Sets the band to assess A12 pH fluctuation alarm.
• For the action, indication condition and setting range, refer to [A11 pH fluctuation alarmband].
A21 pH fluctuation alarm band
pH 0.00• Sets the band to assess A21 pH fluctuation alarm.
• For the action, indication condition and setting range, refer to [A11 pH fluctuation alarmband].
A22 pH fluctuation alarm band
pH 0.00• Sets the band to assess A22 pH fluctuation alarm.
• For the action, indication condition and setting range, refer to [A11 pH fluctuation alarmband].
A11 High/Low limits independent
pH input: pH 0.00, Temperature input: 0.0
lower side band
• Sets the lower side band of A11 High/Low limits independent action.
Disabled when set to pH 0.00 or 0.0 .
• Available when
(pH input High/Low limits independent action) or(Temperature input High/Low limits independent action) is selected in [A11 type].
• Setting range:
pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.
A12 High/Low limits independent
pH input: pH 0.00, Temperature input: 0.0
lower side band
• Sets the lower side band of A12 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent lower side band].
25

Character

Setting Item, Function, Setting Range
Factory Default
A21 High/Low limits independent
pH input: pH 0.00, Temperature input: 0.0
lower side band
• Sets the lower side band of A21 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent lower side band (p.25)].
A22 High/Low limits independent
pH input: pH 0.00, Temperature input: 0.0
lower side band
• Sets the lower side band of A22 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent lower side band (p.25)].
A11 High/Low limits independent
pH input: pH 0.00, Temperature input: 0.0
upper side band
• Sets the upper side band of A11 High/Low limits independent action.
Disabled when set to pH 0.00 or 0.0 .
• Available when
(pH input High/Low limits independent action) or(Temperature input High/Low limits independent action) is selected in [A11 type].
• Setting range:
pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.
A12 High/Low limits independent
pH input: pH 0.00, Temperature input: 0.0
upper side band
• Sets the upper side band of A12 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent upper side band].
A21 High/Low limits independent
pH input: pH 0.00, Temperature input: 0.0
upper side band
• Sets the upper side band of A21 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent upper side band].
A22 High/Low limits independent
pH input: pH 0.00, Temperature input: 0.0
upper side band
• Sets the upper side band of A22 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent upper side band].
A11 hysteresis
pH input: pH 0.10, Temperature input: 1.0• Sets hysteresis of A11 High/Low limits independent action.
• Available when
(pH input High/Low limits independent action) or(Temperature input High/Low limits independent action) is selected in [A11 type].
• Setting range:
pH input: pH 0.01 to pH 4.00 (*)
Temperature input: 0.1 to 10.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.
A12 hysteresis
pH input: pH 0.10, Temperature input: 1.0• Sets hysteresis of A12 High/Low limits independent action.
• For the indication condition and setting range, refer to [A11 hysteresis].
A21 hysteresis
pH input: pH 0.10, Temperature input: 1.0• Sets hysteresis of A21 High/Low limits independent action.
• For the indication condition and setting range, refer to [A11 hysteresis].
A22 hysteresis
pH input: pH 0.10, Temperature input: 1.0• Sets hysteresis of A22 High/Low limits independent action.
• For the indication condition and setting range, refer to [A11 hysteresis].
26

Character

Setting Item, Function, Setting Range
Factory DefaultA
output when input errors occur
Disabled• If input errors occur, such as pH Combined Electrode Sensor is burnt out or
short-circuited, A
output Enabled/Disabled can be selected.
If “Enabled” is selected, A
output and A
output status will be maintained when
input errors occur.
If “Disabled” is selected, A
output and A
output status will be turned OFF when
input errors occur.
• Available when
(pH input low limit action),(pH input high limit action),(Temperature input low limit action), or(Temperature input high limit
action) is selected in [Atype].
• Selection item:: Enabled: Disabled
pH input filter time constant
0.0 seconds• Sets pH input filter time constant.
If the value is set too large, it affects A
output due to the delay of response.
• Setting range: 0.0 to 60.0 seconds
pH input sensor correction
0.00• Sets pH input sensor correction value.
This corrects the measured value from the pH Combined Electrode Sensor. When asensor cannot be set at the exact location where measurement is desired, pH value
measured by the sensor may deviate from the pH in the measured location. In thiscase, desired pH can be obtained by adding a sensor correction value.
However, it is effective within the measurement range regardless of the sensor
correction value.
pH value after sensor correction = Current pH value + (Sensor correction value)• Setting range: pH -1.40 to 1.40 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

pH inputs for moving average
20• Sets the number of pH inputs used to obtain a moving average.
An average pH input value is calculated using the selected number of pH inputs. The
pH input value is replaced every input sampling period. However, the pH input moving
average function is disabled in pH calibration mode.
• Setting range: 1 to 120

27

8.3 Temperature Input GroupTo enter the Temperature Input group, follow the procedure below.
1
Press thekey twice in pH/Temperature Display Mode, or Cleansing Output Mode.
2
Press thekey.
The unit enters the Temperature Input group, and ’Electrode RTD‘ appears.
Character

Setting Item, Function, Setting Range
Electrode RTD

Factory Default
Pt spec: Pt1000
Cu spec: Cu500• Selects RTD type of the electrode.
• Depending on the input specification, the following items can be selected.
Pt spec: No temperature compensation: Pt1000: Pt100
Cu spec: No temperature compensation: Cu500
Reference temperature
25.0• Sets the reference temperature for temperature compensation.
(No temperature compensation) is selected in [Electrode RTD], the• Iftemperature set in [Reference temperature] will be indicated on the Temperature
Display.
• Setting range: 5.0 to 95.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

Decimal point place
1 digit after decimal point• Selects decimal point place.
: No decimal point•: 1 digit after decimal point
Pt100 input wire type3-wire type
• Selects the input wire type when Pt100 is selected in [Electrode RTD].
(Pt100) is selected in [Electrode RTD].
• Available only when•
: 2-wire type
: 3-wire type
Cable length correction
0.0 m• Sets the cable length correction value.
• Available when
(Pt100) is selected in [Electrode RTD].
Available when
(2-wire Type) is selected in [Pt100 input wire type].
• Setting Range: 0.0 to 100.0 m
Cable cross-section area
0.30 mm2• Sets the cable cross-section area.
• Available when
(Pt100) is selected in [Electrode RTD].
Available when
(2-wire Type) is selected in [Pt100 input wire type].
• Setting Range: 0.10 to 2.00 mm2Temperature inputs for moving average
20• Sets the number of temperature inputs used to obtain a moving average.
An average temperature input value is calculated using the selected number oftemperature inputs. The temperature input value is replaced every input sampling
period. However, the temperature input moving average function is disabled intemperature calibration mode.
• Setting range: 1 to 120

28

8.4 Basic Function GroupTo enter the Basic Function group, follow the procedure below.
1
Press thekey 3 times in pH/Temperature Display Mode, or Cleansing Output Mode.
2
Press thekey.
The unit enters the Basic Function group, and the ’Set value lock‘ appears.
Character
Setting Item, Function, Setting Range
Factory Default
Set value lock
Unlock• Locks the set values to prevent setting errors.
•(Unlock): All set values can be changed.
(Lock 1): None of the set values can be changed.
(Lock 2): Only A11, A12, A21, A22 values can be changed.
(Lock 3): All set values – except Electrode RTD, Temperature calibration value,
pH calibration value, pH calibration Auto/Manual, Transmission output 1
Zero adjustment value, Transmission output 1 Span adjustment value,
Transmission output 2 Zero adjustment value, Transmission output 2
Span adjustment value – can be temporarily changed. However, they
revert to their previous value after the power is turned off because they
are not saved in the non-volatile IC memory.
Do not change setting items (A11, A12, A21, A22 types). If they arechanged, they will affect other setting items.
Be sure to select Lock 3 when changing the set value frequently via
software communication. (If a value set via software communicationis the same as the value before the setting, the value will not be written
in non-volatile IC memory.)
Communication protocol
Shinko protocol• Selects communication protocol.
•: Shinko protocol: MODBUS ASCII mode
: MODBUS RTU mode
Instrument number0• Sets the instrument number. (The instrument numbers should be set one by one when
multiple instruments are connected.)• Setting range: 0 to 95
Communication speed
9600 bps• Selects a communication speed equal to that of the host computer.
•: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity
7 bits/Even• Selects data bit and parity.
•: 8 bits/No parity: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd
Stop bit
1 bit• Selects the stop bit.
•
: 1 bit: 2 bits

29

Character

Setting Item, Function, Setting Range
Factory Default
Transmission output 1 typepH transmission• Selects Transmission output 1 type.
If(No Temperature Compensation) is selected in [Electrode RTD (p.28)],
and if(Temperature transmission) is selected in [Transmission output 1 type],
the value set in [Reference temperature (p.28)] will be output.
• Available only when Transmission output 1 (TA option) or Transmission output 2 (TA2
option) is ordered.
•: pH transmission: Temperature transmission
Transmission output 1 high limit
pH 14.00• Sets the Transmission output 1 high limit value. (This value correponds to 20 mA DC output.)
If Transmission output 1 high limit and low limit are set to the same value, Transmission
output 1 will be fixed at 4 mA DC.
• Available when Transmission output 1 (TA option) or Transmission output 2 (TA2
option) is ordered.
• Setting range:
When(pH Transmission) is selected in [Transmission output 1 type]:
Transmission output 1 low limit to pH 14.00 (*)
When(Temperature Transmission) is selected in [Transmission output 1 type]:
Transmission output 1 low limit to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

Transmission output 1 low limit
pH 0.00• Sets the Transmission output 1 low limit value. (This value correponds to 4 mA DC output.)
If Transmission output 1 high limit and low limit are set to the same value, Transmission
output 1 will be fixed at 4 mA DC.
• Available when Transmission output 1 (TA option) or Transmission output 2 (TA2
option) is ordered.
• Setting range:
When(pH Transmission) is selected in [Transmission output 1 type]:
pH 0.00 to Transmission output 1 high limit (*)
When(Temperature Transmission) is selected in [Transmission output 1 type]:
0.0 to Transmission output 1 high limit (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

Transmission output 2 type
Temperature transmission• Selects Transmission output 2 type.
(No Temperature Compensation) is selected in [Electrode RTD (p.28)],
If
and if(Temperature transmission) is selected in [Transmission output 2 type],
the value set in [Reference temperature (p.28)] will be output.
• Available only when Transmission output 2 (TA2 option) is ordered.
•: pH transmission: Temperature transmission
Transmission output 2 high limit
100.0• Sets the Transmission output 2 high limit value. (This value correponds to 20 mA DC output.)
If Transmission output 2 high limit and low limit are set to the same value, Transmission
output 2 will be fixed at 4 mA DC.
• Available only when Transmission output 2 (TA2 option) is ordered.
• Setting range:
When(pH Transmission) is selected in [Transmission output 2 type]:
Transmission output 2 low limit to pH 14.00 (*)
When(Temperature Transmission) is selected in [Transmission output 2 type]:
Transmission output 2 low limit to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

30

Character

Setting Item, Function, Setting Range
Factory Default
Transmission output 2 low limit
0.0• Sets the Transmission output 2 low limit value. (This value correponds to 4 mA DC output.)
If Transmission output 2 high limit and low limit are set to the same value,
Transmission output 2 will be fixed at 4 mA DC.
• Available only when Transmission output 2 (TA2 option) is ordered.
• Setting range:
When(pH Transmission) is selected in [Transmission output 2 type]:
pH 0.00 to Transmission output 2 high limit (*)
When(Temperature Transmission) is selected in [Transmission output 2 type]:
0.0 to Transmission output 2 high limit (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

Transmission output 1 status when calibrating
Last value HOLD
• Selects Transmission output 1 output status when calibrating pH.
• Available when Transmission output 1 (TA option) or Transmission output 2 (TA2
option) is ordered.
• Selection item:: Last value HOLD (Retains the last value before pH calibration, and outputs it.): Set value HOLD (Outputs the value set in [Transmission output 1 value HOLD
when calibrating].): Measured value (Outputs the measured value when calibrating pH.)
Transmission output 1 value HOLD when
pH transmission: pH 0.00
calibrating
Temperature transmission: 0.0• Sets Transmission output 1 value HOLD.
• Available only when(Set value HOLD) is selected in [Transmission output 1
status when calibrating].
• Setting range:
When(pH Transmission) is selected in [Transmission output 1 type]:
pH 0.00 to 14.00 (*)
When(Temperature Transmission) is selected in [Transmission output 1 type]:
0.0 to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

Transmission output 2 status when calibrating
Last value HOLD
• Selects Transmission output 2 output status when calibrating pH.
• Available only when Transmission output 2 (TA2 option) is ordered.
• Selection range: Last value HOLD (Retains the last value before pH calibration, and outputs it.): Set value HOLD (Outputs the value set in [Transmission output 2 value HOLD
when calibrating].): Measured value (Outputs the measured value when calibrating pH.)
Transmission output 2 value HOLD when
pH transmission: pH 0.00
calibrating
Temperature transmission: 0.0• Sets Transmission output 2 value HOLD.
• Available only when(Set value HOLD) is selected in [Transmission output 2
status when calibrating].
• Setting range:
When(pH Transmission) is selected in [Transmission output 2 type]:
pH 0.00 to 14.00 (*)
When(Temperature Transmission) is selected in [Transmission output 2 type]:
0.0 to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

pH calibration Auto/Manual
Automatic• Selects either automatic or manual pH calibration.
: Automatic•: Manual
Auto-light function
Disabled• Selects Auto-light Enabled/Disabled.
•: Disabled: Enabled
31

Character

Setting Item, Function, Setting Range
Factory Default
Display selection
pH/Temperature• Selects items to be indicated on the pH Display and Temperature Display.
• Selection: (Table 8.4-1)
pH Display
Temperature Display
pH
Temperature
pH
No indication
No indication
Temperature
No indication
No indication
Indication time
00.00
• Sets the indication time of the displays from no key operation until displays turn off.
Displays remain lit when set to 00.00.
Displays light up when any key is pressed while in unlit status.
• Not available if(No indication) is selected in [Display selection].
• Setting range: 00.00 (Remains lit)
00.01 to 60.00 (Minutes.Seconds)
Temperature Display when no temperature
Unlit
compensation• If(No temperature compensation) is selected in [Electrode RTD], thereference temperature set in [Reference temperature] can be indicated on theTemperature Display.
(No temperature compensation) is selected in• Available only when
[Electrode RTD (p.28)].
•: Reference temperature: UnlitA1 output allocation
A11 type• Selects A1 output allocation.
For A1 output, A11 type, A12 type, A21 type and/or A22 type can be allocated.
Output is OR output.
However, if(Cleansing output) is selected in any one of [A11, A12, A21, A22
type (pp. 21 22)], the Cleansing output will be given priority.
• Not Available if Transmission output 2 (TA2 option) is ordered.
•: A11 type
: A12 type
: A21 type
: A22 type
: A11, A12 types: A21, A22 types: A11, A21 types: A12, A22 types: A11, A12, A21, A22 types
A2 output allocation
A21 type• Selects A2 output allocation.
For A2 output, A11 type, A12 type, A21 type and/or A22 type can be allocated.
Output is OR output.
However, if(Cleansing output) is selected in any one of [A11, A12, A21, A22
type (pp.21 22)], the Cleansing output will be given priority.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2
option) is ordered.
• For the selection item, refer to [A1 output allocation].

32

Character

Setting Item, Function, Setting Range
Factory Default
Output ON time when A1 output ON
0 seconds• Sets the Output ON time when A1 output is ON.
If Output ON time and OFF time are set, A1 output can be turned ON/OFF in aconfigured cycle when A1 output is ON. (Fig. 8.4-1)• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range: 0 to 9999 seconds
Timing chart (Output ON time and OFF time when A1 output is ON)
ON
Actual A1 output
OFF

A1 output to which
ON time and OFF
time are set.

ON time is turned
OFF, caused by theactual A1 output
turning OFF.

ON
OFF
ON
time

OFF
ON
time
time
(Fig. 8.4-1)
e

OFF
time

ON
time

Output OFF time when A1 output ON
0 seconds• Sets Output OFF time when A1 output is ON.
If Output ON time and OFF time are set, A1 output can be turned ON/OFF in aconfigured cycle when A1 output is ON. (Fig. 8.4-1)• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range: 0 to 9999 seconds
Output ON time when A2 output ON
0 seconds• Sets Output ON time when A2 output is ON.
If Output ON time and OFF time are set, A2 output can be turned ON/OFF in aconfigured cycle when A2 output is ON. (Fig. 8.4-1)• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Setting range: 0 to 9999 seconds
Output OFF time when A2 output ON
0 seconds• Sets Output OFF time when A2 output is ON.
If Output ON time and OFF time are set, A2 output can be turned ON/OFF in aconfigured cycle when A2 output is ON. (Fig. 8.4-1)• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Setting range: 0 to 9999 seconds

33

Character

Setting Item, Function, Setting Range
Factory Default
A1 pH input error alarm A
type
No action• Selects A
type in order to assess A1 pH input error alarm.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Selection item
: No action: A11 type
: A12 type
: A21 type
: A22 typeA2 pH input error alarm A
type
No action• Selects A
type in order to assess A2 pH input error alarm.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
type].
• For the selection item, refer to [A1 pH input error alarm A
A1 pH input error alarm band
pH 0.00
when Aoutput ON• Sets the band to assess A1 pH input error alarm when A
output (selected in[A1 pH input error alarm A
type]) is ON.
Refer to Section ‘10.3 pH Input Error Alarm’ on p.46.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range: pH 0.00 to 14.00
When set to 0.00, pH input error alarm is disabled.
A1 pH input error alarm time
0 seconds
when Aoutput ON• Sets time to assess A1 pH input error alarm when A
output (selected in[A1 pH input error alarm A
type]) is ON.
Refer to Section ‘10.3 pH Input Error Alarm’ on p.46.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range: 0 to 9999 seconds or minutes (Time unit follows the selection in [pHinput error alarm time unit].)
When set to 0, pH input error alarm is disabled.
A1 pH input error alarm band
pH 0.00
when Aoutput OFF• Sets the band to assess A1 pH input error alarm when A
output (selected in
A1 pH input error alarm A
type]) is OFF.
Refer to Section ‘10.3 pH Input Error Alarm’ on p.46.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range: pH 0.00 to 14.00
When set to 0.00, pH input error alarm is disabled.

34

Character

Setting Item, Function, Setting Range
Factory Default
A1 pH input error alarm time
0 seconds
when Aoutput OFF• Sets time to assess A1 pH input error alarm when A
output (selected in[A1 pH input error alarm A
type]) is OFF.
Refer to Section ‘10.3 pH Input Error Alarm’ on p.46.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range: 0 to 9999 seconds or minutes (Time unit follows the selection in [pHinput error alarm time unit].)
When set to 0, pH input error alarm is disabled.
A2 pH input error alarm band
pH 0.00
when Aoutput ON• Sets the band to assess A2 pH input error alarm when A
output (selected in[A2 pH input error alarm A
type]) is ON.
Refer to Section ‘10.3 pH Input Error Alarm’ on p.46.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Setting range: pH 0.00 to 14.00
When set to 0.00, pH input error alarm is disabled.
A2 pH input error alarm time
0 seconds
when Aoutput ON• Sets time to assess A2 pH input error alarm when A
output (selected in[A2 pH input error alarm A
type]) is ON.
Refer to Section ‘10.3 pH Input Error Alarm’ on p.46.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Setting range: 0 to 9999 seconds or minutes (Time unit follows the selection in [pHinput error alarm time unit].)
When set to 0, pH input error alarm is disabled.
A2 pH input error alarm band
pH 0.00
when Aoutput OFF• Sets the band to assess A2 pH input error alarm when A
output (selected in[A2 pH input error alarm A
type]) is OFF.
Refer to Section ‘10.3 pH Input Error Alarm’ on p.46.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Setting range: pH 0.00 to 14.00
When set to 0.00, pH input error alarm is disabled.
A2 pH input error alarm time
0 seconds
when Aoutput OFF• Sets time to assess A2 pH input error alarm when A
output (selected in[A2 pH input error alarm A
type]) is OFF.
Refer to Section ‘10.3 pH Input Error Alarm’ on p.46.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Setting range: 0 to 9999 seconds or minutes (Time unit follows the selection in [pHinput error alarm time unit].)
When set to 0, pH input error alarm is disabled.

35

Character

Setting Item, Function, Setting Range
Factory Default
pH input error alarm time unit
Second(s)• Selects the time unit of pH input error alarm.
• Selection item
: Second(s): Minute(s)Number of cleansing cycles
0 (Continuous cleansing)• Sets the number of cleansing outputs. (Fig. 8.4-2) (p.37)• Available for this setting item and all subsequent items if(Cleansing output)
is selected in any one of [A11, A12, A21, A22 type (pp.21, 22)].
• Setting range: 0 to 10 (0: Continuous cleansing)
Cleansing interval
360 minutes• Sets an interval between cleansings. (Fig. 8.4-2) (p.37)• Setting range: 60 to 3000 minutes
Cleansing time
600 seconds• Sets the cleansing output time during the cleansing output interval. (Fig. 8.4-2) (p.37)• Setting range: 1 to 1800 seconds
Restore time after cleansing
600 seconds• Sets the time to restore instruments to normal operation after cleansing output. (Fig. 8.4-2) (p.37)• Setting range: 1 to 1800 seconds
Transmission output 1 status
Last value HOLD
when cleansing• Selects Transmission output 1 output status when cleansing action is performing.
• Available when Transmission output 1 (TA option) or Transmission output 2 (TA2
option) is ordered.
•: Last value HOLD (Retains the last value before cleansing action, and outputs it.): Set value HOLD (Outputs the value set in [Transmission output 1 value
HOLD when cleansing].): Measured value (Outputs the measured value when cleansing action is
performing.)
Transmission output 1 value HOLD
pH transmission: pH 0.00
when cleansing
Temperature transmission: 0.0• Sets the Transmission output 1 value HOLD.
• Available only when(Set value HOLD) is selected in [Transmission output 1
status when cleansing].
• Setting range:
When(pH Transmission) is selected in [Transmission output 1 type]:
pH 0.00 to 14.00 (*)
When(Temperature Transmission) is selected in [Transmission output 1 type]:
0.0 to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

Transmission output 2 status
Last value HOLD
when cleansing• Selects Transmission output 2 output status when cleansing action is performing.
• Available only when Transmission output 2 (TA2 option) is ordered.
•: Last value HOLD (Retains the last value before cleansing action, and outputs it.): Set value HOLD (Outputs the value set in [Transmission output 2 value
HOLD when cleaning].): Measured value (Outputs the measured value when cleansing action is
performing.)
Transmission output 2 value HOLD
pH transmission: pH 0.00
when cleansing
Temperature transmission: 0.0• Sets the Transmission output 2 value HOLD.
• Available only when(Set value HOLD) is selected in [Transmission output 2
status when cleansing].
• Setting range:(pH Transmission) is selected in [Transmission output 2 type]:
When
pH 0.00 to 14.00 (*)
When(Temperature Transmission) is selected in [Transmission output 2 type]:
0.0 to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

36• pH Input Error Alarm
pH input error alarm is used for detecting actuator trouble.
Even if pH input error alarm time has elapsed – if the change in pH input is smaller than the pH input
error alarm band – the instrument assumes that actuator trouble has occurred, and sets Status flag 2(A1, A2 pH input error alarm output flag bit).
In Serial communication, status can be read by reading Status flag 2 (A1, A2 pH input error alarm output
flag bit).
pH input error alarm is enabled only when
(pH input low limit action)
limit action) is selected in [A11, A12, A21, A22 type (p.21, 22)].
pH input error alarm is disabled during pH calibration.

(pH input high• Cleansing Output Action

Programmed
actionCleansing

Programmed Cleansing
actionProgrammed
actionCleansing

Cno: Number of cleansing cycles
Cint: Cleansing interval
Ctm: Cleansing time
Rtm: Restore time after cleansing(Fig. 8.4-2)
8.5 Zero/Slope Indication GroupTo enter the Zero/Slope Indication group, follow the procedure below.
1
Press thekey 4 times in pH/Temperature Display Mode, or Cleansing Output
Mode.
2
Press thekey.
The unit enters the Zero/Slope Indication group, and the ‘Zero indication’ appears.
Character

Setting Item, Function, Setting Range

Factory Default

Zero indication
0.0 mV• Indicates potential difference when pH 7 is calibrated.
However, if manual calibration is performed, zero indication value calculated at
previous automatic calibration will not be updated.
If calibration is not successfully completed, zero indication will show the value before
calibration.
• Indication range: Voltage equivalent to pH 1.5
Slope indication
59.2 mV• From the voltage equivalent to the calibrated pH, electromotive force for the change ofpH 1 will be indicated. If calibration is not successfully completed, slope indication
will show the value before calibration.
• Indication range: Voltage equivalent to pH 0.00 to 14.00

37

9. Calibration
The pH calibration mode, Temperature calibration mode, Transmission output 1 adjustment mode, andTransmission output 2 adjustment mode are described below.
9.1 pH Calibration Mode
For pH measurement using the glass electrode method, pH in the sensor location, electrode performanceand standard solution accuracy respectively play an important role for obtaining reliable data.
There are 2 methods in pH calibration: Automatic Calibration and Manual Calibration
When(Automatic) is selected in [pH Calibration Auto/Manual (p.31)], pH will be automaticallycalibrated.
When(Manual) is selected in [pH Calibration Auto/Manual (p.31)], pH will be calibrated manually.
When(No Temperature Compensation) is selected in [Electrode RTD (p.28)], calibration will be
automatically performed at 25 basis.
Perform pH calibration while pH measured value is in a stable status.
The unit cannot enter pH calibration mode in the following cases:• When(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock (p.29)].
• When(Cleansing output) is selected in any one of [A11, A12, A21, A22 type (pp.21, 22)], andcleansing action is performing using the ‘Cleansing time’ and ‘Restore time after cleansing’ settings.
9.1.1 Automatic Calibration
The 1st point standard solution [pH 7 (JIS or US standard)] selected in [pH 7 calibration standard(p.20)] is automatically calibrated first. Then, the 2nd point standard solution [any one of pH 2,
pH 4, pH 9 or pH 10 (JIS)] selected in [2nd Solution (p.20)] is calibrated.
The pH value (based on JIS Z8802) at each temperature of pH standard solution to be calibrated
will be automatically calculated.
The following outlines the procedure for automatic calibration.
(1) The 1st Point Calibration
1 Immerse the pH Combined Electrode Sensor in the 1st point standard solution (pH 7).
When selecting(Last value HOLD) in [Transmission output 1 status when calibrating(p.31)] or [Transmission output 2 status when calibrating] (p.31)], select it while the pH
Combined Electrode Sensor is being immersed in the solution currently calibrated.
After that, immerse the pH Combined Electrode Sensor in the 1st point standard solution (pH 7).
2

Press and hold the
key andkey (in that order) together for 3 seconds in
pH/Temperature Display Mode, or Cleansing Output Mode.
The unit enters pH calibration mode, and indicates the following.
Display
Indication
pH Display
pH
Temperature Display

3

Press thekey.
Automatic calibration of the 1st point starts.
During Automatic calibration, pH on the pH Display flashes.
Automatic calibration is carried out using the Automatic electrode quality evaluation function (*).
When flashing stops, automatic calibration of the 1st point is complete.
(*) Depending on the selection in [pH 7 calibration standard (p.20)], the value calibrated by the
Automatic electrode quality evaluation function will be as follows.
Value Calibrated by the Automatic
pH7 Calibration Standard
Electrode Quality Evaluation Function
JIS
pH 6.86
US standard
pH 7.0038

(2) The 2nd Point Calibration
1 Confirm that automatic calibration of the 1st point is complete, then press the
The 2nd standard solution will be shown on the display as follows.
Display
Indication
pH Display
pH
Temperature Display
pH standard solution selected in [2nd Solution (p.20)]

key.

2

Rinse the electrode, and immerse the pH Combined Electrode Sensor in the 2nd Standard
solution.

3

Press thekey.
Automatic calibration for the 2nd point starts.
During Automatic calibration, pH on the pH Display flashes.
Automatic calibration is carried out using the Automatic electrode quality evaluation function.
When flashing stops, automatic calibration of the 2nd point will be complete.

4

Confirm that automatic calibration of the 2nd point is complete, then press the
The newly calibrated values will be applied to the unit, indicated as follows.
Display
Indication
pH Display
Temperature Display
pH automatic calibration is now complete.

5

Press thekey.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.

39

key.

9.1.2 Manual Calibration
Manual calibration can be carried out using 2 types of solution with a difference of pH 2 or more.
The following outlines the procedure for manual calibration.
(1) The 1st Point Calibration
1 Immerse the pH Combined Electrode Sensor in the 1st standard solution.
When selecting(Last value HOLD) in [Transmission output 1 status when calibrating(p.31)] or [Transmission output 2 status when calibrating] (p.31)], select it while the pH
Combined Electrode Sensor is being immersed in the solution currently calibrated.
After that, immerse the pH Combined Electrode Sensor in the 1st point standard solution.
2

Press and hold the
key andkey (in that order) together for 3 seconds in
pH/Temperature Display Mode, or Cleansing Output Mode.
The unit enters pH calibration mode, and indicates the following.
Display
Indication
pH Display
pH is flashing.
Temperature Display

3

Press thekey.
The unit enters the 1st point manual calibration mode, and indicates the following.
Display
Indication
pH Display
and pH are indicated alternately.
Temperature Display
The calibrated value is indicated.

4

Set the calibration value with theor
key while checking the pH.
pH calibration value setting range: -7.00 to 7.00

5

Press thekey.
The 1st point calibration is completed, and indicates the following.
Display
Indication
pH Display
pH is flashing.
Temperature Display(2) The 2nd Point Calibration
1 Rinse the electrode, and immerse the pH Combined Electrode Sensor in the 2ndStandard solution.
2

Press thekey.
The 2nd point can be calibrated manually, indicated as follows.
Display
Indication
pH Display
and pH are indicated alternately.
Temperature Display
The calibration value is indicated.

3

Set the calibration value with theor
key while checking the pH.
pH calibration value setting range: -7.00 to 7.00

4

Press thekey.
The 2nd point calibration is completed. The newly calibrated values will be applied tothe unit, indicated as follows.
Display
Indication
pH Display
Temperature Display
Now, pH manual calibration is complete.

5

Press thekey.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.
40

9.1.3 Error Code during pH Calibration
During pH calibration, if pH calibration cannot be performed due to unstable pH input or temperaturecompensation error, etc., the error code (Table 9.1.3-1) will flash on the Temperature Display.
(Table 9.1.3-1)
Error
Error
Error
Description
Occurrence
Code
Type
Error Response Speed
When calibrating, the response of the pH
Error
Combined Electrode Sensor is slow.
When the difference between the input andeach of the 1st and 2nd solutions are within
pH 1.50, and input fluctuation is over pH
0.05 (in 10 seconds of assessment
cycles) for 5 minutes, this is assumed to be
an error.
However, if input fluctuation is less than orequal to pH 0.05, this is assumed to bewithin the normal range.
Error Electrode
When calibrating, sensitivity of the pH
Sensitivity
Combined Electrode Sensor has
When
Error
deteriorated.
calibrating
The difference between 1st and 2nd
standard solution value after calibration isless than or equal to pH 2.00.
Error Asymmetry
When calibrating pH 7, the difference inPotential Error
electromotive force between thesensor-measured value and standard value
exceeds the equivalent of pH 1.50.
Error Standard Solution
The specified standard solution has not been
Error
used.
When pH 1.50 is exceeded for the 1st
and 2nd solutions.
Error Solution TemperaWhen temperature is 55 or more at pH 10
solution.
ture Error
Fail
Temperature Sensor Temperature sensor lead wire is burnt out.
Burnout
Fail
Temperature Sensor Temperature sensor lead wire is
When
Short-circuited
short-circuited.
measuringorError Outside Temperature Measured temperature has exceeded
calibrating
Compensation Range 110.0 .
Error Outside Temperature Measured temperature is less than 0.0 .
Compensation Range

41

9.2 Temperature Calibration ModeTo calibrate a temperature, set a temperature calibration value.
If(No temperature compensation) is selected in [Electrode RTD (p.28)], Temperature
calibration mode is not available.
The unit cannot enter Temperature calibration mode in the following cases:• When(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock (p.29)].
• When(Cleansing output) is selected in any one of [A11, A12, A21, A22 type (pp.21, 22)],and cleansing action is performing using the ‘Cleansing time’ and ‘Restore time after cleansing’
settings.
When a sensor cannot be set at the exact location where measurement is desired, the resulting
measured temperature may deviate from the temperature in the desired location. In this case, thedesired temperature can be set for the desired location by setting a temperature calibration value.
However, it is effective within the input rated range regardless of the temperature calibration value.
Temperature after calibration = Current temperature + (Temperature calibration value)(e.g.) When current temperature is 23.5 ,If temperature calibration value is set to 1.5 : 23.5 + (1.5) = 25.0
If temperature calibration value is set to -1.5 : 23.5 + (-1.5) = 22.0
The following outlines the procedure for Temperature calibration.
1

Press and hold the
key andkey (in that order) together for 3 seconds in
pH/Temperature Display Mode, or Cleansing Output Mode.
The unit will proceed to Temperature calibration mode, and indicates the following.
Display
Indication
pH Display
and temperature are indicated alternately.
Temperature Display
Temperature calibration value is indicated.

2

Set a temperature calibration value with theor
key while checking the temperature.
Setting range: -10.0 to 10.0 (The placement of the decimal point does not follow the selection.
It is fixed.)

3

Press thekey.
Temperature calibration is complete, and the unit reverts to pH/Temperature Display Mode, orCleansing Output Mode.

42

9.3 Transmission Output 1 Adjustment Mode
Fine adjustment of Transmission output 1 is performed.
The instrument is adjusted at the factory, however, differences may occur between the indication
value of the connected equipment (recorders, etc.) and output value of this instrument.
In this case, perform Transmission output 1 Zero adjustment and Span adjustment.
Transmission output 1 adjustment mode is available only when the Transmission output 1 (TA option)or Transmission output 2 (TA2 option) is ordered.
The unit cannot enter Transmission output 1 Zero adjustment mode in the following cases.
• During pH calibration or temperature calibration• When(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock (p.29)].
• When(Cleansing output) is selected in any one of [A11, A12, A21, A22 type (pp.21, 22)],and cleansing action is performing using the ‘Cleansing time’ and ‘Restore time after cleansing’
settings.
The following outlines the procedure for Transmission output 1 adjustment.
1

Press and hold theandkey (in that order) together for approx. 3 seconds in
pH/Temperature Display Mode, or Cleansing Output Mode.
The unit enters Transmission output 1 Zero adjustment mode, and indicates the following.
Display
Indication
pH Display
Temperature Display
Transmission output 1 Zero adjustment value2

Set the Transmission output 1 Zero adjustment value with theorthe value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 1 Span

3

Press thekey.
The unit enters Transmission output 1 Span adjustment mode, and indicates the following.
Display
Indication
pH Display
Temperature Display
Transmission output 1 Span adjustment value

4

Set the Transmission output 1 Span adjustment value with thethe value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 1 Span

5

Press thekey.
The unit reverts to the Transmission output 1 Zero adjustment mode.
Repeat steps 2 to 5 if necessary.

6

To finish Transmission output 1 adjustment, press the
key in Transmission output 1
Span adjustment mode.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.

43orkey, while viewing

key, while viewing

9.4 Transmission Output 2 Adjustment Mode
Fine adjustment of Transmission output 2 is performed.
The instrument is adjusted at the factory, however, differences may occur between the indication
value of the connected equipment (recorders, etc.) and output value of this instrument.
In this case, perform Transmission output 2 Zero adjustment and Span adjustment.
Transmission output 2 adjustment mode is available only when Transmission output 2 (TA2 option)is ordered.
The unit cannot enter Transmission output 2 Zero adjustment mode in the following cases.
• During pH calibration or temperature calibration• When(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock (p.29)].
• When(Cleansing output) is selected in any one of [A11, A12, A21, A22 type (pp.21, 22)],and cleansing action is performing using the ‘Cleansing time’ and ‘Restore time after cleansing’
settings.
The following outlines the procedure for Transmission output 2 adjustment.
1

Press and hold theandkey (in that order) together for approx. 3 seconds in
pH/Temperature Display Mode, or Cleansing Output Mode.
The unit enters Transmission output 2 Zero adjustment mode, and indicates the following.
Display
Indication
pH Display
Temperature Display
Transmission output 2 Zero adjustment value2

Set the Transmission output 2 Zero adjustment value with theorthe value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 2 Span

3

Press thekey.
The unit enters Transmission output 2 Span adjustment mode, and indicates the following.
Display
Indication
pH Display
Temperature Display
Transmission output 2 Span adjustment value

4

Set the Transmission output 2 Span adjustment value with thethe value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 2 Span

5

Press thekey.
The unit reverts to the Transmission output 2 Zero adjustment mode.
Repeat steps 2 to 5 if necessary.

6

To finish the Transmission output 2 adjustment, press the
key in Transmission output 2
Span adjustment mode.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.

44orkey, while viewing

key, while viewing

10. Measurement
10.1 Starting Measurement
After mounting to the control panel, and wiring, setup and calibration are complete, turn the power
to the instrument ON.
For approx. 4 seconds after the power is switched ON, the input characters are indicated on the
pH Display and Temperature Display.
Depending on the input specification, indication on the Temperature Display differs as follows.
Pt specpH
Display

Temperature
Display
Unlit

Item Selected in[Electrode RTD (p.28)]: No temperaturecompensation: Pt1000

Item Selected in[Pt100 input wire type (p.28)]: 2-wire type
: 3-wire type

: Pt100
Cu specpH
Display

Temperature
Display
Unlit

Item selected in[Electrode RTD (p.28)]: No temperaturecompensation: Cu500

During this time, all outputs are in OFF status, and LED indicators except the PWR Indicator turns off.
After that, measurement starts, indicating the item selected in [Display selection (p.32)].
10.2 A
OutputWhen(pH input low limit action),(pH input high limit action),(Temperature
input low limit action) or(Temperature input high limit action) is selected in [A11, A12, A21, A22
type (pp.21, 22)] , the A
output is turned ON if measured value drops below or exceeds the A
value.
(pH input High/Low limits independent action) or(Temperature input High/Low
Whenlimits independent action) is selected in [A11, A12, A21, A22 type (pp.21, 22)], the alarm output isturned ON if the measured value exceeds A
High/Low limits independent upper side band, or
drops below A
High/Low limits independent lower side band.
A1 or A2 output is turned ON depending on the settings in [A1, A2 output allocation (p.32)] and [Output
ON time/OFF time when A1/A2 output ON (p.33)].
If Output ON time and OFF time are set, A1 or A2 output can be turned ON/OFF in a configured cycle
when A1 or A2 output is ON. (Fig. 10.2-1)
Timing chart (Output ON time and OFF time when A1 output is ON)
ON
Actual A1 output
OFF
ON time is turned
OFF, caused by theactual A1 output
turning OFF.

ON
A1 output to which
ON time and OFF
OFFtime are set.
ON
time

OFF
time

ON
time

(Fig. 10.2-1)

45

OFF
time

ON
time

A
output status can be read by reading Status flag 2 (A11, A12, A21, A22 output flag bit) in Serial
communication.
A
output status, when input errors occur, differs depending on the selection in [Aoutput when
input errors occur (p.27)].
• If(Disabled) is selected in [Aoutput when input errors occur (p.27)], A
output andAoutput status will be turned OFF when input errors occur.
• If(Enabled) is selected in [Aoutput when input errors occur (p.27)], A
output andAoutput status will be maintained when input errors occur.
• If(No temperature compensation) is selected in [Electrode RTD (p.28)] selection,
Temperature input low limit and Temperature input high limit actions will be disabled.
10.3 pH Input Error Alarm
pH input error alarm is used for detecting actuator trouble.
Even if pH input error alarm time has elapsed – if the change in pH input is smaller than the pH input
error alarm band – the instrument assumes that actuator trouble has occurred, and sets Status flag 2(A1, A2 pH input error alarm output flag bit).
In Serial communication, status can be read by reading Status flag 2 (A1, A2 pH input error alarm
output flag bit).
pH input error alarm is enabled only when
(pH input low limit alarm)(pH input highlimit alarm) is selected in [A11, A12, A21, A22 type (p.21, 22)].
pH input error alarm is disabled during pH calibration.
10.4 Error Output(Error output) is selected in [A11, A12, A21, A22 type (pp. 21, 22)], the A1 or A2 output willIf
be turned ON when error type is “Error”. See (Table 9.1.3-1, p.41).
10.5 Fail Output
If(Fail output) is selected in [A11, A12, A21, A22 type (pp. 21, 22)], the A1 or A2 output will
be turned ON when error type is “Fail”. See (Table 9.1.3-1, p.41).
10.6 Cleansing Output
If(Cleansing output) is selected in any one of [A11, A12, A21, A22 type (pp. 21, 22)], the unit
will enter Cleansing Output Mode.
The A
output (for which the cleansing output is selected) will turn ON during the configured cleansing time.
When the cleansing interval finishes after restore time has passed, this is counted as one cleansing
cycle, and the configured the number of cleansing cycles will be repeated.
While cleansing is being performed using the ‘Cleansing Time’ and ‘Restore Time after Cleansing’
settings, other outputs are in OFF status.
Measured values (pH, temperature) are constantly updated.
When cleansing is not being performed, programmed operation continues.
When power is turned ON again, the unit starts cleansing action from the first cleansing cycle.
output (for which theAfter the configured number of cleansing cycles are finished, the A
cleansing output is selected) is turned OFF, and other outputs perform their operations selected in[A11, A12, A21, A22 type (p.21, 22)]. However, they are in Cleansing Output Mode.
If any output other than
(Cleansing output) is selected in [A11, A12, A21, A22 type (pp.21,22)], the unit will revert to pH/Temperature Display Mode.
• Cleansing Output Action

Programmed
actionCleansing Programmed
actionCno: Number of cleansing cycles
Cint: Cleansing interval
Ctm: Cleansing time
Rtm: Restore time after cleansing

Cleansing(Fig. 10.6-1)
46

Programmed
actionCleansing• While cleansing action is currently performing, if(Cleansing output) is selected in [A11, A12,
A21, A22 type (p.21, 22)] again and it is allocated in [A1 output allocation] or [A2 output allocation],then the allocated output will be the same as the current cleansing output.
• If(No temperature compensation) is selected in [Electrode RTD (p.28)], the value set in[Reference temperature] is maintained during cleansing action.
If an input error occurs [when temperature measured value is outside the measurement range (e.g.)less than 0.0 or exceeding 110.0 ], the following will be displayed.
pH Display
pH measured value
pH measured value

Temperature Display
Less than 0.0 :Exceeding 110.0 :• During calibration mode, Transmission output 1 adjustment or Transmission output 2 adjustment, if
cleansing action initiates after restore time has passed, the cleansing action will not be performed in
the current session.
• If the number of cleansing cycles is changed in [Number of cleansing cycles] during cleansing action,
the new number will be valid from the next cleansing cycle.
10.7 Manual Cleansing Mode
By pressing theandkeys simultaneously for 3 seconds, the unit enters Manual Cleansing
mode. In Manual Cleansing mode, cleansing action is performed using the ‘Cleansing Time’ and‘Restore Time after Cleansing’ settings.
After cleansing is completed, the unit automatically reverts to Cleansing Output Mode.
During cleansing action, Manual cleansing via key operation is invalidated, so the unit cannot enter
Manual cleansing mode.
During Manual cleansing mode, if programmed cleansing action initiates after Restore time has passed,
the cleansing action will not be performed in the current session.
Cleansing action by Manual cleansing mode is also counted as 1 cleansing cycle.
If Lock 1, Lock 2 or Lock 3 is selected in [Set value lock], the unit cannot enter the Manual Cleansing
mode.
Manual Cleansing Mode Action

Programmed
actionCleansing Programmed Cleansing Programmed Cleansing
actionactionDuring cleansing action, Manual
cleansing mode via key operation
is invalidated – programmed
cleansing mode takes priority.

During Manual cleansing mode, theprogrammed cleansing action will be
invalidated.
Cleansing action by Manual cleansing
mode is counted as one cleansing cycle.

Cno: Number of cleansing cycles
Cint: Cleansing interval
Ctm: Cleansing time
Rtm: Restore time after cleansing(Fig. 10.7-1)

47

10.8 Error Code during Measurement
For temperature sensor error or outside temperature compensation range during measurement,
their corresponding error codes flash on the Temperature Display as shown below in (Table 10.8-1).
(Table 10.8-1)
Error
Error
Code
Type
Fail
Fail
Error
Error

Error
Temperature sensor
burnout
Temperature sensor
short-circuited
Outside temperaturecompensation range
Outside temperaturecompensation range

Description

Occurrence

Temperature sensor lead wire is burnt out.
Temperature sensor lead wire isWhenmeasuring
short-circuited.
Measured temperature has exceeded 110.0 . orcalibrating
Measured temperature is less than 0.0 .

10.9 Transmission Output 1 and 2
Converting pH or temperature to analog signal every input sampling period, outputs in current.
(Factory default: Transmission output 1: pH, Transmission output 2: Temperature)
If(No temperature compensation) is selected in [Electrode RTD (p.28)], and(Temperature transmission) is selected in [Transmission output 1 type (p.30)] or [Transmission
output 2 type (p.30)], the value set in [Reference temperature (p.28)] will be output.
If Transmission output 1 high limit and low limit are set to the same value, Transmission output 1 will
be fixed at 4 mA DC.
If Transmission output 2 high limit and low limit are set to the same value, Transmission output 2 will
be fixed at 4 mA DC.
Resolution
Current
Output accuracy

12000
4 to 20 mA DC (Load resistance: Max 550 )Within 0.3% of Transmission output 1 Span or Transmission output 2 Span

10.10 pH Fluctuation Alarm Output
pH fluctuation alarm output is used for detecting pH input fluctuation error.
Even if pH fluctuation alarm time has elapsed – if the change in pH input fluctuation is smaller than the
pH fluctuation alarm band – the instrument assumes that a pH fluctuation error has occurred, and sets
Status flag 2 (A11, A12, A21, A22 output flag bit).
(pH fluctuation alarm output) is selected in [A11, A12, A21, A22 type (pp.21, 22)], theIfselected A
output will be turned ON.
In Serial communication, status can be read by reading Status flag 2 (A11, A12, A21, A22 output flag
bit).
This function will be disabled if pH fluctuation alarm time is set to 0 (zero) hours, or if pH fluctuation
alarm band is set to pH 0.00.

48

11. Communication
11.1 System Configuration Example
When Using USB Communication Cable CMC-001-3 (sold separately)
No. 0

WIL-102-PH
No. 1 No. 2

No. 30

Host Computer

USB Communication
Cable CMC-001-3(sold separately)(Fig. 11.1-1)

When Using Communication Converter IF-400 (sold separately)

Host Computer

Communication
Converter IF-400(sold separately)

RS-232C

No. 0

No. 1

WIL-102-PH
No. 2

No. 30RS-485(Fig. 11.1-2)
11.2 Setting Method of the pH Meter
Communication parameters can be set in the Basic Function group.
To enter the Basic Function group, follow the procedure below.
1
Press thekey 3 times in pH/Temperature Display Mode, or Cleansing Output Mode.
2
Press thekey twice. ’Communication Protocol‘ appears.
3 Set each item. (Use theor
key for settings, and register the value with the
key.)Character

Setting Item, Function, Setting Range
Factory Default
Communication protocol
Shinko protocol• Selects the communication protocol.
•: Shinko protocol: MODBUS ASCII mode
: MODBUS RTU mode
Instrument number0• Sets the instrument number.
The instrument numbers should be set one by one when multiple instruments areconnected in Serial communication, otherwise communication is impossible.
• Setting range: 0 to 95
49

Character

4

Setting Item, Function, Setting Range
Factory Default
Communication speed
9600 bps• Selects a communication speed equal to that of the host computer.
•: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity
7 bits/Even• Selects data bit and parity.
•: 8 bits/No parity: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd
Stop bit
1 bit• Selects the stop bit.
•
: 1 bit: 2 bits

Press thekey multiple times. The unit reverts to pH/Temperature Display Mode, or Cleansing
Output Mode.

11.3 Communication Procedure
Communication starts with command transmission from the host computer (hereafter Master) andends with the response of the WIL-102-PH (hereafter Slave).
• Response with Data
MasterSlave
When the master sends the reading command, the slave
Command
responds with the corresponding set value or current status.
Data• Acknowledgement
When the master sends the setting command, the slave responds
Commandby sending acknowledgement after processing is terminated.
Acknowledgement• Negative Acknowledgement
When the master sends a non-existent command or value out of
Commandthe setting range, the slave returns a negative acknowledgement.
• No Response
Negative Acknowledgement
The slave will not respond to the master in the following cases:• Global address (Shinko protocol) is set.
Command• Broadcast address (MODBUS protocol) is set.
• Communication error (framing error, parity error)
No response• Checksum error (Shinko protocol), LRC discrepancy (MODBUS(Fig.11.3-1)
ASCII mode), CRC-16 discrepancy (MODBUS RTU mode)
Communication Timing of the RS-485
Master Side (Take note while programming)
When the master starts transmission through the RS-485 communication line, the master is arranged so
as to provide an idle status (mark status) transmission period of 1 or more character before sending thecommand to ensure synchronization on the receiving side.
Set the program so that the master can disconnect the transmitter from the communication line within a
1-character transmission period after sending the command in preparation for reception of the response
from the slave.
To avoid collision of transmissions between the master and the slave, send the next command after
carefully checking that the master has received the response.
If a response to the command is not returned due to communication errors, set the Retry Processing tosend the command again. (It is recommended to execute Retry twice or more.)
Slave Side
When the slave starts transmission through the RS-485 communication line, the slave is arranged so as
to provide an idle status (mark status) transmission period of 1 or more characters before sending the
response to ensure synchronization on the receiving side.
The slave is arranged so as to disconnect the transmitter from the communication line within a 1-charactertransmission period after sending the response.
50

11.4 Shinko Protocol
11.4.1 Transmission Mode
Shinko protocol is composed of ASCII.
Hexadecimal (0 to 9, A to F), which is divided into high order (4-bit) and low order (4-bit) out of 8-bit
binary data in command is transmitted as ASCII characters.
Data format
Start bit: 1 bit
Data bit: 7 bits
Parity: Even
Stop bit: 1 bit
Error detection: Checksum

11.4.2 Command Configuration
All commands are composed of ASCII.
The data (set value, decimal number) is represented by hexadecimal numbers.
The negative numbers are represented in 2's complement.
Numerals written below the command represent the number of characters.
(1) Setting Command
HeaderSub address Command
Data
Address
Data
Checksum
(02H)
(20H)
type (50H)
item
1
1
1
1
4
4
2
(Fig. 11.4.2-1)(2) Reading Command
HeaderSub address Command
Address(02H)(20H)
type (20H)1111(Fig. 11.4.2-2)

Data
item
4

(3) Response with Data
HeaderSub address Command
Address(06H)(20H)
type (20H)1111(Fig. 11.4.2-3)

Data
item
4

(4) Acknowledgement
HeaderAddress Checksum
(06H)
1
1
2
(Fig. 11.4.2-4)

Data

Checksum

42

Delimiter(03H)
1

Delimiter(03H)1(5) Negative Acknowledgement
HeaderError
Address
Checksum
(15H)
code
1
1
1
2
(Fig. 11.4.2-5)
Header:2

Delimiter(03H)
1

Checksum

Delimiter(03H)
1

Delimiter(03H)
1

Control code to represent the beginning of the command or the response.
ASCII codes are used.
Setting command, Reading command: STX (02H) fixed
Response with data, Acknowledgement: ACK (06H) fixed
Negative acknowledgement:
NAK (15H) fixed
Instrument Number (Address): Numbers by which the master discerns each slave.
Instrument number 0 to 94 and Global address 95.
ASCII codes (20H to 7FH) are used by adding 20H to instrument numbers 0 to 95(00H to 5FH).
95 (7FH) is called Global address, which is used when the same command is sent
to all the slaves connected. However, the response is not returned.
Sub Address:
20H fixed
Command Type: Code to discern Setting command (50H) and Reading command (20H)
Data Item:Classification of the command object.
Composed of 4-digit hexadecimal numbers, using ASCII.
[Refer to “11.6. Communication Command Table”. (pp. 57 to 65)]
51

Data:

The contents of data (set value) differ depending on the setting command.
Composed of 4-digit hexadecimal numbers, using ASCII.
[Refer to “11.6. Communication Command Table”. (pp. 57 to 65)]
2-character data to detect communication errors.
Refer to “11.4.3 Checksum Calculation”.
Control code to represent the end of command.
ASCII code ETX (03H) fixed
Represents an error type using ASCII.
1 (31H)-----Non-existent command
2 (32H)-----Not used
3 (33H)-----Setting outside the setting range
4 (34H)-----Status unable to be set (e.g. While Automatic electrode quality evaluation
function is performing.)
5 (35H)-----During setting mode by keypad operation

Checksum:
Delimiter:
Error Code:11.4.3 Checksum Calculation
Checksum is used to detect receiving errors in the command or data.
Set the program for the master side as well to calculate the checksum of the response data from theslaves so that communication errors can be checked.
The ASCII code (hexadecimal) corresponding to the characters which range from the address to that
before the checksum is converted to binary notation, and the total value is calculated.
The lower one byte of the total value is converted to 2’s complement, and then to hexadecimal
numbers, that is, ASCII code for the checksum.
• 1’s complement: Reverse each binary bit. 0 will become 1 and vice versa.
• 2’s complement: Add 1 to 1’s complement.
Checksum Calculation Example
pH calibration value: 1.00 (0064H)
Address (instrument number): 0 (20H)
Checksum calculation range[e.g.]
P

STX

0

0

0

8

0

0

6

4

30H

30H

36H

34H

D

E

ETX

[Characters above are represented in ASCII.]
02H

20H

20H

50H

30H

30H

[Hexadecimal][Binary]
20H0010 0000
20H
0010 0000
50H
0101 0000
30H
0011 0000
30H
0011 0000
30H
0011 0000
38H
0011 1000
30H
0011 0000
30H
0011 0000
36H
0011 0110
0011 0100+ 34H
10 0010 0010

30H

38H

44H 45H

Checksum[1's complement]+[2's complement]

1101 1101
1
1101 1110[Hexadecimal]

D[ASCII]

44H 45H

E

Checksum(Fig. 11.4.3-1)

52

03H

11.5 MODBUS Protocol
11.5.1 Transmission Mode
There are 2 transmission modes (ASCII and RTU) in MODBUS protocol.
ASCII Mode
Hexadecimal (0 to 9, A to F), which is divided into high order (4-bit) and low order (4-bit)
out of 8-bit binary data in command is transmitted as ASCII characters.
Data format
Start bit: 1 bit
Data bit: 7 bits (8 bits) (Selectable)
Parity: Even (No parity, Odd) (Selectable)
Stop bit: 1 bit (2 bits) (Selectable)
Error detection : LRC (Longitudinal Redundancy Check)
RTU Mode
8-bit binary data in command is transmitted as it is.
Data format Start bit: 1 bit
Data bit: 8 bits
Parity: No parity (Even, Odd) (Selectable)
Stop bit: 1 bit (2 bits) (Selectable)
Error detection: CRC-16 (Cyclic Redundancy Check)11.5.2 Data Communication Interval
ASCII Mode
Max.1 second of interval between ASCII mode characters
RTU Mode
Communication speed 9600 bps, 19200 bps:
To transmit continuously, an interval between characters which consist of one message, must bewithin 1.5-character transmission times.
Communication speed 38400 bps:
To transmit continuously, an interval between characters which consist of one message, must bewithin 750 s.
If an interval lasts longer than 1.5-character transmission times or 750 s, the WIL-102-PH assumes
that transmission from the master is finished, which results in a communication error, and will not
return a response.

11.5.3 Message Configuration
ASCII Mode
ASCII mode message is configured to start by Header [: (colon)(3AH)] and end by Delimiter[CR (carriage return) (0DH) + LF (Line feed)(0AH)].
HeaderSlave
FunctionError check
Delimiter Delimiter
Data(:)
address
Code
LRC
(CR)
(LF)
RTU Mode
Communication speed 9600 bps, 19200 bps: RTU mode is configured to start after idle time isprocessed for more than 3.5-character transmissions, and end after idle time is processed formore than 3.5-character transmissions.
Communication speed 38400 bps: RTU mode is configured to start after idle time is processed formore than 1.75 ms, and end after idle time is processed for more than 1.75 ms.
3.5 idle
Slave
FunctionError check3.5 idleDatacharacters addresscode
CRC-16characters(1) Slave Address
Slave address is an individual instrument number on the slave side, and is set within the range
0 to 95 (00H to 5FH).
The master identifies slaves by the slave address of the requested message.
The slave informs the master which slave is responding to the master by placing its own addressin the response message.
Slave address 00H (Broadcast address) can identify all the slaves connected. However, slaves
do not respond.
53

(2) Function CodeThe function code is the command code for the slave to undertake the following action types.
(Table 11.5.3-1)
Function CodeContents
03 (03H)
Reading the set value and information from slaves
06 (06H)
Setting to slaves
Function code is used to discern whether the response is normal (acknowledgement) or if any error(negative acknowledgement) has occurred when the slave returns the response message to the master.
When acknowledgement is returned, the slave simply returns the original function code.
When negative acknowledgement is returned, the MSB of the original function code is set as 1 for the
response.
(For example, when the master sends request message setting 10H to the function code by mistake,slave returns 90H by setting the MSB to 1, because the former is an illegal function.)
For negative acknowledgement, the exception codes below (Table 11.5.3-2) are set to the data of the
response message, and returned to the master in order to inform it of what kind of error has occurred.
(Table 11.5.3-2)
Exception Code1 (01H)
2 (02H)
3 (03H)
17 (11H)
18 (12H)

Contents
Illegal function (Non-existent function)
Illegal data address (Non-existent data address)
Illegal data value (Value out of the setting range)
Shinko protocol error code 4 [Status unable to be set (e.g.) Automaticelectrode quality evaluation function is being performed.]
Shinko protocol error code 5 (During setting mode by keypad operation)(3) Data
Data differs depending on the function code.
A request message from the master is composed of data item, amount of data and setting data.
A response message from the slave is composed of the byte count, data and exception codesin negative acknowledgements, corresponding to the request message.
Effective range of data is -32768 to 32767 (8000H to 7FFFH).
(4) Error CheckASCII Mode
After calculating LRC (Longitudinal Redundancy Check) from the slave address to the end of data,
the calculated 8-bit data is converted to two ASCII characters, and are appended to the end of
message.
How to Calculate LRC
1 Create a message in RTU mode.
2 Add all the values from the slave address to the end of data. This is assumed as X.
3 Make a complement for X (bit reverse). This is assumed as X.
4 Add a value of 1 to X. This is assumed as X.
5 Set X as an LRC to the end of the message.
6 Convert the whole message to ASCII characters.
RTU Mode
After calculating CRC-16 (Cyclic Redundancy Check) from the slave address to the end of thedata, the calculated 16-bit data is appended to the end of message in sequence from low orderto high order.
How to calculate CRC-16
In the CRC-16 system, the information is divided by the polynomial series. The remainder isadded to the end of the information and transmitted. The generation of a polynomial series is
as follows.
(Generation of polynomial series: X16 + X 15 + X 2 + 1)
1 Initialize the CRC-16 data (assumed as X) (FFFFH).
2 Calculate exclusive OR (XOR) with the 1st data and X. This is assumed as X.
3 Shift X one bit to the right. This is assumed as X.
54

4

5
6
7
8
9

When a carry is generated as a result of the shift, XOR is calculated by X of 3 andthe fixed value (A001H). This is assumed as X. If a carry is not generated, go to step
Repeat steps 3 and 4 until shifting 8 times.
XOR is calculated with the next data and X. This is assumed as X.
Repeat steps 3 to 5 .
Repeat steps 3 to 5 up to the final data.
Set X as CRC-16 to the end of message in sequence from low order to high order.

5 .

11.5.4 Message Example
ASCII Mode
Numerals written below the command represent the number of characters.
1 Reading [Slave address 1, Data item 0080H (pH)]• A request message from the masterAmount of data means how many data items are to be read. It is fixed as (30H 30H 30H 31H).
Header
(3AH)
1

Slave
Address(30H 31H)
2

Function
Code(30H 33H)
2

Data Item[0080H](30H 30H 38H 30H)
4

Amount of Data
Error Check[0001H]
LRC(30H 30H 30H 31H) (37H 42H)
4
2

Delimiter(0DH 0AH)
2• Response message from the slave in normal status [pH 1.00 (0064H)]
The response byte count means the byte count of the data which has been read.
It is fixed as (30H 32H).
Header(3AH)

Slave
Address(30H 31H)

Function
Code(30H 33H)

1

2

2

Response Byte
Count
[02H]
(30H 32H)
2

Data
Error Check[0064H]
LRC(30H 30H 36H 34H) (39H 36H)
4
2

Delimiter(0DH 0AH)
2• Response message from the slave in exception (error) status (When a data item is incorrect)
The function code MSB is set to 1 for the response message in exception (error) status (83H).
The exception code 02H (Non-existent data address) is returned (error).
Header
(3AH)
1
2

Slave
Address(30H 31H)
2

Function
Code(38H 33H)
2

Exception Code
[02H]
(30H 32H)
2

Error Check
LRC(37H 41H)
2

Delimiter(0DH 0AH)
2

Setting [Slave address 1, Data item 0008H (pH calibration value)]• A request message from the master [When pH calibration value is set to 1.00 (0064H)]
Header
(3AH)
1

Slave
Address(30H 31H)
2

Function
Code(30H 36H)
2

Data Item[0008H](30H 30H 30H 38H)
4

Data
Error Check[0064H]
LRC(30H 30H 36H 34H) (38H 44H)
4
2

Delimiter(0DH 0AH)
2• Response message from the slave in normal status
Header
(3AH)
1

Slave
Address(30H 31H)
2

Function
Code(30H 36H)
2

Data Item[0008H](30H 30H 30H 38H)
4

Data
Error Check[0064H]
LRC(30H 30H 36H 34H) (38H 44H)
4
2

Delimiter(0DH 0AH)
2• Response message from the slave in exception (error) status (When a value out of the setting range
is set)
The function code MSB is set to 1 for the response message in exception (error) status (86H).
The exception code 03H (Value out of the setting range) is returned (error).
Header
(3AH)
1

Slave
Address(30H 31H)
2

Function
Code(38H 36H)
2

Exception Code
[03H]
(30H 33H)
2

55

Error Check
LRC(37H 36H)
2

Delimiter(0DH 0AH)
2

RTU Mode
Numerals written below the command represent the number of characters.
1 Reading [Slave address 1, Data item 0080H (pH)]• A request message from the masterAmount of data means how many data items are to be read. It is fixed as (0001H).
Slave
3.5 Idle
Address
Characters(01H)
1

Function
Code
(03H)
1

Data Item(0080H)
2

Amount ofdata(0001H)

Error Check
CRC-16(85E2H)2

2

3.5 idle
characters• Response message from the slave in normal status [pH 1.00 (0064H)]
The response byte count means the byte count of the data which has been read.
It is fixed as (02H).
Slave
3.5 Idle
Address
Characters(01H)
1

Function
Code
(03H)

Response Byte
Count
(02H)

Data
(0064H)

Error Check
CRC-16(B9AFH)

1

1

2

2

3.5 idle
characters• Response message from the slave in exception (error) status (When data item is incorrect).
The function code MSB is set to 1 for the response message in exception (error) status (83H).
The exception code (02H: Non-existent data address) is returned (error).
Slave
3.5 Idle
Address
Characters
(01H)
1
2

Function
Code
(83H)
1

Exception Code
(02H)
1

Error Check
CRC-16(C0F1H)2

3.5 idle
characters

Setting [Slave address 1, Data item 0008H (pH calibration value)]• A request message from the master [When pH calibration value is set to 1.00 (0064H)]
Slave
3.5 Idle
Address
Characters(01H)
1

Function
Code
(06H)
1

Data Item

Data(0008H)
2(0064H)
2

Error Check
CRC-16(D9E3H)2

3.5 idle
characters• Response message from the slave in normal status
Slave
3.5 Idle
Address
Characters(01H)
1

Function
Code
(06H)
1

Data Item

Data(0008H)
2(0064H)
2

Error Check
CRC-16(D9E3H)2

3.5 idle
characters• Response message from the slave in exception (error) status (When a value out of the setting
range is set)
The function code MSB is set to 1 for the response message in exception (error) status (86H).
The exception code (03H: Value out of the setting range) is returned (error).
Slave
3.5 Idle
Address
Characters(01H)
1

Function
Code
(86H)
1

Exception
Code
(03H)
1

Error Check
CRC-16(0261H)256

3.5 idle
characters11.6 Communication Command Table
11.6.1 Notes about Setting/Reading Command• The data (set value, decimal) is converted to hexadecimal numbers.
A negative number is represented in 2's complement.
• When connecting multiple slaves, the address (instrument number) must not be duplicated.
• Data items 0200H to 0209H (User save area 1 to 10) can be read or set in 1 word units.
Effective range of data is -32768 to 32767 (8000H to 7FFFH).
• MODBUS protocol uses Holding Register addresses. The Holding Register addresses are createdas follows. A Shinko command data item is converted to decimal number, and the offset of 40001
is added.
The result is the Holding Register address.
Using Data item 0001H (2nd solution) as an example:
Data item in the sending message is 0001H, however, MODBUS protocol Holding Register
address is 40002 (1 + 40001).
• Even if options are not ordered, setting or reading via software communication will be possible.
Command contents of the A11, A12, A21, A22 will function, however, Transmission output 1 andTransmission output 2 command contents will not function.
(1) Setting Command• Up to 1,000,000 (one million) entries can be stored in non-volatile IC memory. If the numberof settings exceeds the limit, the data will not be saved. So, ensure the set values are notfrequently changed via software communication. (If a value set via software communication is
the same as the value before the setting, the value will not be written in non-volatile IC memory.)• Be sure to select Lock 3 when changing the set value frequently via software communication.
If Lock 3 is selected, all set values – except Electrode RTD, Temperature calibration value, pH
calibration value, pH calibration Auto/Manual, Transmission output 1 Zero adjustment value,
Transmission output 1 Span adjustment value, Transmission output 2 Zero adjustment value,
Transmission output 2 Span adjustment value – can be temporarily changed. However, they
revert to their previous value after the power is turned off because they are not saved in the
non-volatile IC memory.
Do not change setting items (A11, A12, A21, A22 type). If they are changed, they will affect othersetting items.
• Setting range of each item is the same as that of keypad operation.
• When the data (set value) has a decimal point, a whole number (hexadecimal) without a decimal
point is used.
• If A11, A12, A21 or A22 type is changed at Data items 0003H (A11 type), 0050H (A12 type), 0051H(A21 type) or 0052H (A22 type), the A11, A12, A21 or A22 value will default to 0 (zero).
The output status of A11, A12, A21 or A22 will also be initialized.
• Settings via software communication are possible while in Set value lock status.
• Communication parameters such as Instrument Number, Communication Speed of the slave cannot
be set by the software communication function. They can only be set via the keypad. (pp.49, 50)• When sending a command by Global address [95 (7FH), Shinko protocol] or Broadcast address[00H, MODBUS protocol], the same command is sent to all the slaves connected. However, theresponse is not returned.
(2) Reading Command• When the data (set value) has a decimal point, a whole number (hexadecimal) without a decimal
point is used for a response.

5711.6.2 Setting/Reading Command
ShinkoMODBUS
Command Function
Data ItemType
Code
50H/20H
06H/03H 0001H 2nd solution

50H/20H

06H/03H

0002H

pH input decimal point
place

50H/20H

06H/03H

0003H

A11 type

50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H

06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H

0004H
0005H
0006H
0007H
0008H
0009H

50H/20H

06H/03H

0021H

A11 value
A11 ON side
A11 ON delay time
A11 OFF delay time
pH calibration value
pH 7 calibration
standard
Electrode RTD

50H/20H

06H/03H

0022H

50H/20H
50H/20H

06H/03H
06H/03H

0023H
0028H

50H/20H

06H/03H

0030H

50H/20H

06H/03H

0031H

50H/20H
50H/20H
50H/20H

06H/03H
06H/03H
06H/03H

0032H
0033H
0034H

50H/20H

06H/03H

0035H

50H/20H

06H/03H

0036H

Temperature input
decimal point place
Reference temperature
Temperature calibrationvalue
Set value lock

Data
0000H: pH 2
0001H: pH 4
0002H: pH 9
0003H: pH 10
0000H: No decimal point
0001H: 1 digit after decimal point
0002H: 2 digits after decimal point
0000H: No action
0001H: pH input low limit action
0002H: pH input high limit action
0003H: Temperature input low limit
0004H: Temperature input high limit
0005H: Error output
0006H: Fail output
0007H: Cleansing output
0008H: pH fluctuation alarm output
0009H: pH input High/Low limits
independent
000AH: Temperature input
High/Low limits independent
Set value
Set value
Set value
Set value
Set value
0000H: JIS
0001H: US standard
Pt spec
0000H: No temperature compensation
0001H: Pt1000
0002H: Pt100
Cu spec
0000H: No temperature compensation
0001H: Cu500
0000H: No decimal point
0001H: 1 digit after decimal pointSet value
Set value

0000H: Unlock
0001H: Lock 1
0002H: Lock 2
0003H: Lock 3
Transmission output 1
0000H: pH transmission
type
0001H: Temperature transmission
Transmission output 1 high limit Set value
Transmission output 1 low limit Set value
pH calibration Auto/Manual
0000H: Automatic
0001H: ManualAuto-light function
0000H: Disabled
0001H: Enabled
Display selection
Temperature

58

Data

pH Display

0000H
0001H
0002H
0003H

pH
pH
No indication
No indication

Display
Temperature
No indication
Temperature
No indication

ShinkoCommandType
50H/20H
50H

MODBUS
FunctionCode
06H/03H
06H

50H

Data Item

Data

0037H
0038H

Indication time
pH calibration mode

06H

0039H

pH calibration start

50H/20H
50H/20H

06H/03H
06H/03H

0040H
0041H

50H/20H
50H/20H
50H/20H

06H/03H
06H/03H
06H/03H

0042H
0043H
0048H

50H/20H

06H/03H

0049H

50H/20H

06H/03H

004AH

50H/20H

06H/03H

004BH

50H/20H

06H/03H

0050H

pH input filter time constantA
output when input
errors occur
Cable length correction
Cable cross-section area
Output ON time when A1
output ON
Output OFF time when A1
output ON
Output ON time when A2
output ON
Output OFF time when A2
output ON
A12 type

Set value
0000H: pH/Temperature Display
Mode, or Cleansing Output Mode
0001H: Calibration mode
0001H: 1st point calibration start
0002H: 1st point calibration complete
0003H: 2nd point calibration start
0004H: 2nd point calibration complete
Set value
0000H: Enabled
0001H: Disabled
Set value
Set value
Set value

50H/20H

06H/03H

0051H

A21 type

50H/20H

06H/03H

0052H

A22 type59

Set value
Set value
Set value
0000H: No action
0001H: pH input low limit action
0002H: pH input high limit action
0003H: Temperature input low limit
0004H: Temperature input high limit
0005H: Error output
0006H: Fail output
0007H: Cleansing output
0008H: pH fluctuation alarm output
0009H: pH input High/Low limits
independent
000AH: Temperature input
High/Low limits independent
0000H: No action
0001H: pH input low limit action
0002H: pH input high limit action
0003H: Temperature input low limit
0004H: Temperature input high limit
0005H: Error output
0006H: Fail output
0007H: Cleansing output
0008H: pH fluctuation alarm output
0009H: pH input High/Low limits
independent
000AH: Temperature input
High/Low limits independent
0000H: No action
0001H: pH input low limit action
0002H: pH input high limit action
0003H: Temperature input low limit
0004H: Temperature input high limit
0005H: Error output
0006H: Fail output
0007H: Cleansing output
0008H: pH fluctuation alarm output
0009H: pH input High/Low limits
independent
000AH: Temperature input
High/Low limits independent

ShinkoCommandType
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H

MODBUS
FunctionCode
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H

50H/20H

Data Item

Data

06H/03H

A12 value
A21 value
A22 value
A12 ON side
A21 ON side
A22 ON side
A12 ON delay time
A21 ON delay time
A22 ON delay time
A12 OFF delay time
A21 OFF delay time
A22 OFF delay time
pH input sensor correction
Temperature Display whenno temperature compensation
006AH A1 output allocation

50H/20H

06H/03H

006BH

A2 output allocation

50H/20H

06H/03H

006FH

Pt100 input wire typeSet value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
0000H: Reference temperature
0001H: Unlit
0000H: A11 type
0001H: A12 type
0002H: A21 type
0003H: A22 type
0004H: A11, A12 types
0005H: A21, A22 types
0006H: A11, A21 types
0007H: A12, A22 types
0008H: A11, A12, A21, A22 types
0000H: A11 type
0001H: A12 type
0002H: A21 type
0003H: A22 type
0004H: A11, A12 types
0005H: A21, A22 types
0006H: A11, A21 types
0007H: A12, A22 types
0008H: A11, A12, A21, A22 types
0000H: 2-wire type
0001H: 3-wire type

50H / 20H
50H / 20H
50H / 20H
50H / 20H
50H / 20H
50H / 20H
50H / 20H
50H / 20H
50H

06H / 03H
06H / 03H
06H / 03H
06H / 03H
06H / 03H
06H / 03H
06H / 03H
06H / 03H
06H

0070H
0071H
0072H
0073H
0074H
0075H
0076H
0077H
007FH

0053H
0054H
0055H
0056H
0057H
0058H
0059H
005AH
005BH
005CH
005DH
005EH
0068H
0069H

Reserved (*)
Reserved (*)
Reserved (*)
Reserved (*)
Reserved (*)
Reserved (*)
Reserved (*)
Reserved (*)
0001H: Clear change flag
Key operation change
flag clearing(*) If the reserved item is read, acknowledgement (undefined value) will be returned.
If the reserved item is set, the instrument action will be changed, so do not set this item.

60

ShinkoCommandType
50H/20H

MODBUS
FunctionCode
06H/03H

0100H

A11 hysteresis type

50H/20H

06H/03H

0101H

A12 hysteresis type

50H/20H

06H/03H

0102H

A21 hysteresis type

50H/20H

06H/03H

0103H

A22 hysteresis type

50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H
50H/20H

06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H
06H/03H

0104H
0105H
0106H
0107H
0108H
0109H
010AH
010BH
010CH
010FH

A11 OFF side
A12 OFF side
A21 OFF side
A22 OFF side
Number of cleansing cycles
Cleansing interval
Cleansing time
Restore time after cleansing
Manual cleansing mode
Transmission output 1
status when calibrating

50H/20H

06H/03H

0110H

50H/20H

06H/03H

0111H

Transmission output 1
value HOLD whencalibrating
A1 pH input error alarmA
type

50H/20H

06H/03H

0112H

A2 pH input error alarm
type
A

50H/20H

06H/03H

0115H

50H/20H

06H/03H

0116H

50H/20H

06H/03H

0117H

50H/20H

06H/03H

0118H

50H/20H

06H/03H

0119H

50H/20H

06H/03H

011AH

50H/20H

06H/03H

011BH

A1 pH input error alarmband when A
outputON
A1 pH input error alarmtime when A
outputON
A1 pH input error alarmband when A
outputOFF
A1 pH input error alarmtime when A
outputOFF
A2 pH input error alarmband when A
outputON
A2 pH input error alarm
outputtime when AON
A2 pH input error alarmband when A
outputOFF

Data Item

61

Data
0000H: Medium Value
0001H: Reference Value
0000H: Medium Value
0001H: Reference Value
0000H: Medium Value
0001H: Reference Value
0000H: Medium Value
0001H: Reference Value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
0001H: Manual cleansing mode
0000H: Last value HOLD
0001H: Set value HOLD
0002H: Measured value
Set value

0000H: No action
0001H: A11 type
0002H: A12 type
0003H: A21 type
0004H: A22 type
0000H: No action
0001H: A11 type
0002H: A12 type
0003H: A21 type
0004H: A22 typeSet value

Set value

Set value

Set value

Set value

Set value

Set valueShinkoCommandType
50H/20H

MODBUS
FunctionCode
06H/03H

50H/20H

06H/03H

50H

06H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H
50H/20H
50H/20H
50H/20H

06H/03H
06H/03H
06H/03H
06H/03H

Data Item
011CH A2 pH input error alarmtime when A
outputOFF
0125H pH input error alarm timeunit
0126H Transmission output 1
adjustment mode

0127HTransmission output 1
Zero adjustment value
0128H Transmission output 1
Span adjustment value
0131H A11 pH fluctuation alarm
time0132H A12 pH fluctuation alarm
time0133H A21 pH fluctuation alarm
time0134H A22 pH fluctuation alarm
time0135H A11 pH fluctuation alarmband
0136H A12 pH fluctuation alarmband
0137H A21 pH fluctuation alarmband
0138H A22 pH fluctuation alarmband0139H A11 High/Low limits
independent lower side band
013AH A12 High/Low limits
independent lower side band
013BH A21 High/Low limits
independent lower side band
013CH A22 High/Low limits
independent lower side band
013DH A11 High/Low limits
independent upper side band
013EH A12 High/Low limits
independent upper side band
013FH A21 High/Low limits
independent upper side band
0140H A22 High/Low limits
independent upper side band
0141H A11 hysteresis
0142H A12 hysteresis
0143H A21 hysteresis
0144H A22 hysteresis

62

Data
Set value

0000H: Second(s)0001H: Minute(s)0000H: pH/Temperature Display
Mode, or Cleansing Output Mode
0001H: Transmission output 1
Zero adjustment mode
0002H: Transmission output 1
Span adjustment modeSet value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set valueShinko
MODBUS
Command Function
Type
Code
50H/20H
06H/03H

0145H

Transmission output 1
status when cleansing

50H/20H

06H/03H

0146H

50H/20H

06H/03H

0147H

50H/20H

06H/03H

0148H

50H/20H

06H/03H

0149H

50H

06H

014AH

Transmission output 1
value HOLD whencleansingTransmission output 2
typeTransmission output 2high limit
Transmission output 2
low limit
Transmission output 2
adjustment mode (*)

50H/20H

06H/03H

014BH

50H/20H

06H/03H

50H/20H

06H/03H

50H/20H

06H/03H

014EH

50H/20H

06H/03H

014FH

50H/20H

06H/03H

0150H

50H/20H

06H/03H

0151H

50H/20H

06H/03H

0152H

50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H
50H/20H

06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H
06H/03H

0200H
0201H
0202H
0203H
0204H
0205H
0206H
0207H
0208H
0209H

Data Item

Transmission output 2
Zero adjustment value
014CH Transmission output 2
Span adjustment value
014DH Transmission output 2
status when calibrating
Transmission output 2
value HOLD whencalibrating
Transmission output 2
status when cleansing
Transmission output 2
value HOLD whencleansing
pH inputs for moving
average
Temperature inputs formoving average
User save area 1
User save area 2
User save area 3
User save area 4
User save area 5
User save area 6
User save area 7
User save area 8
User save area 9
User save area 10

Data
0000H: Last value HOLD
0001H: Set value HOLD
0002H: Measured value
Set value

0000H: pH transmission
0001H: Temperature transmission
Set value
Set value
0000H: pH/Temperature display
mode, or Cleansing output mode
0001H: Transmission output 2
Zero adjustment mode
0002H: Transmission output 2
Span adjustment modeSet value
Set value
0000H: Last value HOLD
0001H: Set value HOLD
0002H: Measured value
Set value

0000H: Last value HOLD
0001H: Set value HOLD
0002H: Measured value
Set value

Set value
Set value-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)-32768 to 32767 (8000H to 7FFFH)(*) If ‘Setting’ is executed while Transmission output 2 (TA2 option) is not ordered, the following error
code will be returned.
• Shinko protocol: Error code 4 (34H)• MODBUS: Exception code 17 (11H)63

11.6.3 Read Only Command
ShinkoMODBUS
Command Function
Data Item
Data
Type
Code
20H
03H
0080H pHpH
20H
03H
0081H Status flag 10000 0000 0000 0000
215
to
20
20 digit: Response speed error
0: Normal 1: Error
12 digit: Electrode sensitivity error
0: Normal 1: Error
22 digit: Asymmetry potential error
0: Normal 1: Error
23 digit: Standard solution error
0: Normal 1: Error
24 digit: 2nd solution temperature error 0: Normal 1: Error
25 digit: Temperature sensor burnout 0: Normal 1: Burnout
26 digit: Temperature sensor short-circuited
0: Normal
1: Short-circuited
7
2 digit: Outside temperature compensation range: Exceeding 110.0
0: Normal
1: Exceeding 110.0
82 digit: Outside temperature compensation range: Less than 0.0
0: Normal
1: Less than 0.0
9
2 digit: pH measured value exceeds pH 14.00.
0: Normal
1: Exceeding pH 14.00
10
2 digit: pH measured value is less than pH 0.00.
0: Normal
1: Less than pH 0.00
11
2 digit: Unit status flag
0: pH/Temperature Display Mode, or Cleansing Output Mode
1: Setting mode
212, 213 digits: Calibration status flag
213
212
Status00Standby0
1
During the 1st point calibration
10
During the 2nd point calibration
1
1
Calibration complete
214 digit: A1 output
215 digit: Change in key operation

64

0: OFF
0: No

1: ON
1: YesShinkoCommand
Type
20H
20H

20H
20H

MODBUS
Function
Code
03H
0090H
03H
0091H

03H
03H

010DH
010EH

Data Item

Data

Temperature
Temperature
Status flag 20000 0000 0000 0000
215
to
20
20 digit: Cleansing output
0: OFF
1: ON
21 digit: A2 output
0: OFF
1: ON
22 digit: Not used (Always 0)
23 digit: A11 output flag (*) 0: OFF
1: ON
4
2 digit: A12 output flag (*) 0: OFF
1: ON
25 digit: A21 output flag (*) 0: OFF
1: ON
6
2 digit: A22 output flag (*) 0: OFF
1: ON
7
2 digit: Cleansing action (Cleansing time)
0: During programmed action
1: During cleansing time
8
2 digit: Cleansing action (Restore time after cleansing)
0: During programmed action
1: During Restore time after cleansing
29 digit: Manual cleansing action status flag
0: No Manual cleansing action
1: During Manual cleansing action
10
2 digit: Transmission output 2 Zero adjustment status flag
0: pH/Temperature Display Mode, or Cleansing Output Mode
1: During Transmission output 2 Zero adjustment
in Transmission output 2 adjustment mode
1112
2 , 2 digits: Transmission output 1 adjustment status flag
212
211
Status00
pH/Temperature Display Mode, or Cleansing
Output Mode01
During Transmission output 1 Zero adjustment
in Transmission output 1 adjustment mode
10
During Transmission output 1 Span adjustment
in Transmission output 1 adjustment mode
213 digit: A1 pH input error alarm output flag
0: OFF 1: ON
14
2 digit: A2 pH input error alarm output flag
0: OFF 1: ON
15
2 digit: Transmission output 2 Span adjustment status flag
0: pH/Temperature Display Mode, or Cleansing Output Mode
1: During Transmission output 2 Span adjustment
in Transmission output 2 adjustment mode
Zero indication
Indicated value
Slope indication
Indicated value(*) A
output flag:
When(Cleansing output) is selected in [A11, A12, A21, A22 type]: The A
outputflag changes to 1 (ON).
(Cleansing output) is selected in [A11, A12, A21, A22 type]:
If any item other than
When Aoutput is turned ON: The A
output flag changes to 1 (ON).
When Aoutput is turned OFF: The A
output flag changes to 0 (OFF).
65

11.7 pH Calibration, Transmission Output 1 and 2 Adjustment via Communication Command
Like a keypad operation, there are also 2 methods in pH Calibration via communication command:
Automatic Calibration and Manual Calibration.
Perform pH Calibration while pH measured value is in a stable status.
11.7.1 pH Calibration(1) Automatic Calibration
Automatic Calibration is performed in sequence from the 1st standard solution pH 7 (JIS or US
standard) selected at Data item 0009H (pH 7 calibration standard) first, and then the 2nd standard
solution [any one of pH 2, pH 4, pH 9 or pH 10 (JIS)] selected at Data item 0001H (2nd solution).
pH value (based on JIS Z8802) at each temperature of pH standard solution to be calibrated is
automatically calculated.
The following outlines the procedure for Automatic Calibration.
• The 1st Point Automatic Calibration
1 Immerse the pH Combined Electrode Sensor in the 1st standard solution (pH 7).
When selecting Last value HOLD (0000H) at Data item 010FH (Transmission output 1 statuswhen calibrating) or 014DH (Transmission output 2 status when calibrating), select it while the
pH Combined Electrode Sensor is being immersed in the solution currently calibrated.
After that, immerse the pH Combined Electrode Sensor in the 1st point standard solution (pH 7).
2 Set Data item 0038H (pH calibration mode) to 0001H.
The unit proceeds to pH calibration mode.
3 Set Data item 0039H (pH calibration start) to 0001H.
The 1st point Automatic calibration starts.
4 If 213, 212 digits are read at Data item 0081H (Status flag 1), 01 (During the 1st point calibration)
will be returned during automatic calibration.
Automatic Calibration is performed using the Automatic electrode quality evaluation function.
5 If 213, 212 digits are read at Data item 0081H (Status flag 1), 00 (Standby) will be returned
after automatic calibration.
6 Set Data item 0039H (pH calibration start) to 0002H.
The 1st point automatic calibration is complete, and the unit moves to the 2nd point automatic
calibration mode.
• The 2nd Point Automatic Calibration
1 After the electrode is rinsed, immerse the pH Combined Electrode Sensor in the 2nd standard
solution.
2 Set Data item 0039H (pH calibration start) to 0003H.
Automatic calibration for the 2nd point starts.
3 If 213, 212 digits are read at Data item 0081H (Status flag 1), 10 (During the 2nd point calibration)
will be returned during automatic calibration.
Automatic calibration is performed using the Automatic electrode quality evaluation function.
4 If 213, 212 digits are read at Data item 0081H (Status flag 1), 11 (Calibration complete) will be
returned after automatic calibration.
5 Set Data item 0039H (pH calibration start) to 0004H.
Automatic calibration for the 2nd point is complete.
6 Set Data item 0038H (pH calibration mode) to 0000H.
The pH automatic calibration is complete, and the unit will revert to pH/Temperature Display
Mode, or Cleansing Output Mode.

66

(2) Manual Calibration
When there is a difference of pH 2 or more, Manual Calibration can be performed using therandomly selected 2 kinds of solution.
The following outlines the procedure for Manual Calibration.
• The 1st Point Manual Calibration
1 Immerse the pH Combined Electrode Sensor in the 1st standard solution.
When selecting Last value HOLD (0000H) at Data item 010FH (Transmission output 1 statuswhen calibrating) or 014DH (Transmission output 2 status when calibrating), select it while the
pH Combined Electrode Sensor is being immersed in the solution currently calibrated.
After that, immerse the pH Combined Electrode Sensor in the 1st point standard solution.
2 Set Data item 0038H (pH calibration mode) to 0001H.
3 Set Data item 0039H (pH calibration start) to 0001H.
Manual calibration for the 1st point starts.
4 If 213, 212 digits are read at Data item 0081H (Status flag 1), 01 (During the 1st point calibration)
will be returned during manual calibration.
5 Set a pH calibration value at Data item 0008H (pH calibration value).
6 Set Data item 0039H (pH calibration start) to 0002H.
Manual calibration for the 1st point is complete, and the unit will enter the 2nd point Manual
Calibration mode.
7 If 213, 212 digits are read at Data item 0081H (Status flag 1), 00 (Standby) will be returned
after manual calibration.
• The 2nd Point Manual Calibration
1 Rinse the electrode, then immerse the pH Combined Electrode Sensor in the 2nd standard
solution.
2 Set Data item 0039H (pH calibration start) to 0003H.
Manual calibration for the 2nd point starts.
3 If 213, 212 digits are read at Data item 0081H (Status flag 1), 10 (During the 2nd point calibration)
will be returned during manual calibration.
4 Set a pH calibration value at Data item 0008H (pH calibration value).
5 Set Data item 0039H (pH calibration start) to 0004H.
Manual calibration for the 2nd point will be complete.
6 If 213, 212 digits are read at Data item 0081H (Status flag 1), 11 (Calibration complete) will be
returned after manual calibration.
7 Set Data item 0038H (pH calibration mode) to 0000H.
The pH Manual calibration is complete, and the unit will revert to pH/Temperature Display Mode,or Cleansing Output Mode.
(3) Error Code during pH Calibration
If pH calibration cannot be performed due to unstable pH input, temperature compensation error,
etc., Error code 1 (Error, Burnout, Short-circuited, etc.) will be returned when 20 digit to 210 digit
at Data item 0081H (Status flag 1) are read.
To release the Error code, set Data item 0038H (pH calibration mode) to 0000H.
The unit will return to pH/Temperature Display Mode, or Cleansing Output Mode.
If Data item 0039H (pH calibration start) is set during pH calibration of the 1st or 2nd point, thefollowing error code will be returned.
Shinko protocol: Error code 34H
MODBUS protocol: Exception code 11H67

11.7.2 Transmission Output 1 Adjustment
Fine adjustment of Transmission output 1 is performed.
The pH meter is adjusted at the factory, however, differences may occur between the indication valueof the connected equipment (recorders, etc.) and the output value of this instrument.
In this case, perform Transmission output 1 Zero adjustment and Span adjustment.
The following outlines the procedure for Transmission output 1 adjustment.
1

Set Data item 0126H (Transmission output 1 adjustment mode) to 0001H.
The unit moves to Transmission output 1 Zero adjustment mode.
If 212 and 211 digits are read at Data item 0091H (Status flag 2), 01 (During Transmission output 1
Zero adjustment in Transmission output 1 adjustment mode) will be returned.
2 Set the Transmission output 1 Zero adjustment value at Data item 0127H (Transmission output 1
Zero adjustment value), while viewing the value indicated on the connected equipment (recorders,etc.).
Setting range: 5.00% of Transmission output 1 Span
3 Set Data item 0126H (Transmission output 1 adjustment mode) to 0002H.
The unit moves to Transmission output 1 Span adjustment mode.
If 212 and 211 digits are read at Data item 0091H (Status flag 2), 10 (During Transmission output 1
Span adjustment in Transmission output 1 adjustment mode) will be returned.
4 Set Transmission output 1 Span adjustment value at Data item 0128H (Transmission output 1 Spanadjustment value), while viewing the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 1 Span
5 Repeat steps 1 to 4 if necessary.
6 To finish the Transmission output 1 adjustment, set Data item 0126H (Transmission output 1
adjustment mode) to 0000H.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.

11.7.3 Transmission Output 2 Adjustment
Fine adjustment of Transmission output 2 is performed.
The pH meter is adjusted at the factory, however, differences may occur between the indication valueof the connected equipment (recorders, etc.) and the output value of this instrument.
In this case, perform Transmission output 2 Zero adjustment and Span adjustment.
The following outlines the procedure for Transmission output 2 adjustment.
1

Set Data item 014AH (Transmission output 2 adjustment mode) to 0001H.
The unit moves to Transmission output 2 Zero adjustment mode.
If 210 digit is read at Data item 0091H (Status flag 2), 1 (During Transmission output 2 Zeroadjustment in Transmission output 2 adjustment mode) will be returned.
2 Set the Transmission output 2 Zero adjustment value at Data item 014BH (Transmission output 2
Zero adjustment value), while viewing the value indicated on the connected equipment (recorders,etc.).
Setting range: 5.00% of Transmission output 2 Span
3 Set Data item 014AH (Transmission output 2 adjustment mode) to 0002H.
The unit moves to Transmission output 2 Span adjustment mode.
If 215 digit is read at Data item 0091H (Status flag 2), 1 (During Transmission output 2 Spanadjustment in Transmission output 2 adjustment mode) will be returned.
4 Set Transmission output 2 Span adjustment value at Data item 014CH (Transmission output 2
Span adjustment value), while viewing the value indicated on the connected equipment (recorders,etc.).
Setting range: 5.00% of Transmission output 2 Span
5 Repeat steps 1 to 4 if necessary.
6 To finish the Transmission output 2 adjustment, set Data item 014AH (Transmission output 2
adjustment mode) to 0000H.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.
68

11.8 Notes on Programming Monitoring Software

11.8.1 How to Speed up the Scan Time
When monitoring multiple units of the WIL-102-PH, set the program so that the requisite minimum
pieces of data such as Data item 0080H (pH), Data item 0090H (Temperature), Data item 0081H(Status flag 1), Data item 0091H (Status flag 2) can be read. For other data, set the program so thatthey can be read only when their set value has been changed. This will speed up the scan time.
11.8.2 How to Read the Set Value Changes Made by Front Keypad Operation
If any set value is changed by keypad operation, the instrument sets [0081H (Status flag 1) 215:
Change in key operation] to 1 (Yes).
There are 2 methods of reading the set value changes made by the front keypad:(1) Reading Method 1
1 On the monitoring software side, check that [0081H (Status flag 1) 215: Change in key operation]
has been set to 1 (Yes), then read all set values.
2

Clear [0081H (Status flag 1) 215: Change in key operation], by setting Data item 007FH (Key
operation change flag clearing) to 0001H (Clear change flag).
If Data item 007FH (Key operation change flag clearing) is set to 0001H (Clear change flag)
during the setting mode of the instrument, Error code 5 (35H, Shinko protocol) or Exception
Code 18 (12H, MODBUS protocol) will be returned as a negative acknowledgement. And[0081H (Status flag 1) 215: Change in key operation] cannot be cleared.
Set a program so that all set values can be read when a negative acknowledgement isreturned.
3 Read all set values again after acknowledgement is returned.
(2) Reading Method 2
1 On the monitoring software side, check that [0081H (Status flag 1) 215: Change in key operation]
has been set to 1 (Yes), then set Data item 007FH (Key operation change flag clearing) to 0001H(Clear change flag).
2

Set the program depending on the acknowledgement or negative acknowledgement as follows.
When acknowledgement is returned:
Consider it as settings completed, and read all set values.

When Error code 5 (35H, Shinko protocol) or Exception code 18 (12H, MODBUS protocol) is
returned as a negative acknowledgement:
Consider it as still in setting mode, and read the requisite minimum pieces of data such as
Data items 0080H (pH), 0090H (Temperature), 0081H (Status flag 1), 0091H (Status flag 2),
then return to step 1 .
Thus, programs which do not affect the scan time can be created using the methods describedabove, even if set values on the monitoring software will not be updated until settings are complete.

11.8.3 Note when Sending All Set Values Simultaneously• If A11, A12, A21 or A22 type is changed at Data items 0003H (A11 type), 0050H (A12 type), 0051H(A21 type) or 0052H (A22 type), the A11, A12, A21 or A22 value will default to 0 (zero).
Output status of A11, A12, A21 or A22 will also be initialized.
First, send the A11, A12, A21, A22 type, then send the A11, A12, A21, A22 value set at Data items
0004H (A11 value), 0053H (A12 value), 0054H (A21 value) and 0055H (A22 value).

6912. Specifications
12.1 Standard Specifications
RatingRated scale

Input

Power supply voltage

General Structure
External dimensions
Mounting
Case
Panel
Indication structure

Setting structure
Indication Performance
Repeatability
Linearity
Temperature indication
accuracy
Input sampling period
Time accuracyStandard Functions
pH calibration

Temperature
calibration

Input
Input Range
Resolution
pH combined electrodepH 0.00 to 14.00
pH 0.01
Pt10000.0 to 100.0
0.1
Pt spec
Pt100
0.0 to 100.0
0.1
Cu spec
Cu500/25
0.0 to 100.0
0.1
pH Combined Electrode Sensor (pH sensor: JIS Z8802
Temperature element: Pt1000 or Pt100)
pH Combined Electrode Sensor (pH sensor: JIS Z8802
Temperature element: Cu500/25 )Model
WIL-102-PH
WIL-102-PH 1
Power supply voltage 100 to 240 V AC 50/60 Hz
24 V AC/DC 50/60 Hz
Allowable voltage
85 to 264 V AC
20 to 28 V AC/DC
fluctuation range
30 x 88 x 108 mm (W x H x D, including socket)
DIN rail
Material: Flame-resistant resin, Color: Light gray
Membrane sheet
Display
pH Display
Red LED 4-digits, character size 10 x 4.6 mm (H x W)
Temperature
Red LED 4-digits, character size 10 x 4.6 mm (H x W)
Display
Action indicator
PWR (Yellow) Lit when power supply is ON.
A1 (Red)Lit when A1 output is ON. (Unlit when TA2 option is added)
Lit when A2 output is ON. (Unlit when TA option or TA2
A2 (Yellow)
option is added)Litwhile in Serial communication TX output (transmitting)T/R (Yellow)
Setting method: Input system using membrane sheet key
pH value: pH
pH value: pH
Temperature:

0.05
0.05
1

125 ms (2 inputs)
Within 1% of setting time
For pH measurement using the glass electrode method, pH in the sensor
location, electrode performance and standard solution accuracy
respectively play an important role for obtaining reliable data.
2-points calibration is performed using the standard solutions.
However, it is effective within the input rated range regardless of thecalibration value.
There are 2 calibration methods: Automatic Calibration, Manual Calibration.
When a sensor cannot be set at the exact location where measurement isdesired, the resulting measured temperature may deviate from thetemperature in the desired location. In this case, the desired temperature
can be set for the desired location by setting a temperature calibration value.
However, it is effective within the input rated range regardless of thetemperature calibration value.
70Serial communication

Cable length
Communicationline
Communication
methodCommunication
speed
Synchronization
methodCode form
Communication
protocolData bit/Parity
Stop bit
Error correction
Error detection
Data format

The following operations can be carried out from an external computer.
(1) Reading and setting of various set values(2) Reading of the pH, temperature and status(3) Function change, adjustment(4) Reading and setting of user save area
1.2 km (Max.), Cable resistance: Within 50(Terminators are notnecessary, but if used, use 120
or more on one side.)
EIA RS-485
Half-duplex communication
9600, 19200, 38400 bps (Selectable by keypad)
Start-stop synchronization
ASCII, Binary
Shinko protocol, MODBUS ASCII, MODBUS RTU (Selectable by keypad)
8 bits/No parity, 7 bits/No parity, 8 bits/Even, 7 bits/Even, 8 bits/Odd,
7 bits/Odd (Selectable by keypad)
1 bit, 2 bits (Selectable by keypad)
Command request repeat system
Parity check, Checksum (Shinko protocol), LRC (MODBUS protocol ASCII),
CRC-16 (MODBUS protocol RTU)
Communication
ShinkoMODBUS ASCIIMODBUS RTU
ProtocolProtocolStart bit
Data bit

1
7

ParityEven

Stop bit1

Insulation/Dielectric Strength
Circuit insulation
configuration

1
7 (8) Selectable
Even (No parity,Odd), Selectable
1 (2),
Selectable1
8
No parity (Even,Odd), Selectable
1 (2),
Selectable

Power supply

Electrically insulated

pH input

A1 output
orTransmission
output 2A2 output
orTransmission
output 1

Temperature input
Serial communication: When the corresponding option is ordered

Dielectric strength

Insulation Resistance: 10 M minimum, at 500 V DC
Between power terminal - ground:
1.5 kV AC for 1 minuteBetween input terminal - ground:
1.5 kV AC for 1 minuteBetween input terminal - power terminal: 1.5 kV AC for 1 minute71

Attached Functions
Set value lockpH input
sensor correction

Temperature Display
when no temperaturecompensation

Outside measurement
range(Lock 1): None of the set values can be changed.
(Lock 2): Only A11, A12, A21, A22 values can be changed.
(Lock 3): All set values – except Electrode RTD, Temperature
calibration value, pH calibration value, pH calibration Auto/Manual,Transmission output 1 Zero adjustment value, Transmission output 1 Spanadjustment value, Transmission output 2 Zero adjustment value,
Transmission output 2 Span adjustment value – can be temporarilychanged. However, they revert to their previous value after the power isturned off because they are not saved in the non-volatile IC memory.
pH value measured by the pH Combined Electrode Sensor may deviate
from the pH value in the measured location. In this case desired pH value
can be obtained by adding a sensor correction value.
However, it is effective within the measurement range regardless of thesensor correction value.
If ’Reference temperature‘ is selected in [Temperature Display when notemperature compensation], the value set in [Reference temperature] will
be indicated on the Temperature Display.
If ’Unlit‘ is selected, the Temperature Display will turn off.
If ’Temperature transmission‘ is selected in [Transmission output 1 type] or[Transmission output 2 type], the value set in [Reference temperature] will
be output.
If pH measured value or temperature measured value is outside themeasurement range, the following will be indicated. However, if pH
measured value is outside the measurement range, and when the unit
proceeds to pH calibration mode, the pH Display will turn off, and theTemperature Display will flash.
If temperature measured value is outside the measurement range, andwhen the unit proceeds to pH calibration mode, the pH Display will turn off,
and the Temperature Display will flash an error code.
pH measured value is outside the measurement range: If the value is lessthan pH 0.00 or exceeds pH 14.00, the following will be indicated.
• WhenRTD (p.28)](No temperature compensation) is selected in [Electrode

pH Display
Less than pH 0.00: 0.00
Exceeding pH 14.00: 14.00

Temperature Display
is flashing.
is flashing.

• With Pt spec, when
(Pt1000) or(Pt100) is selectedin [Electrode RTD (p.28)]• With Cu spec, when
(Cu500) is selected in [Electrode RTD(p.28)]pH Display
Temperature Display
Less than pH 0.00: 0.00 is flashing.
Temperature
Exceeding pH 14.00: 14.00 is flashing. TemperaturePower failurecountermeasureSelf-diagnosis

If temperature measured value is outside the measurement range(Less than 0.0 or exceeding 110.0 ), the following will be indicated.
pH Display
Temperature Display
pH
Less than 0.0 :pH
Exceeding 110.0 :The setting data is backed up in the non-volatile IC memory.
The CPU is monitored by a watchdog timer, and if an abnormal status
occurs, the WIL-102-PH is switched to warm-up status.
72Warm-up indication

For approx. 4 seconds after the power is switched ON, the input characters
are indicated on the pH Display and Temperature Display.
Depending on the input specifications, Temperature Display indicatesdifferently as follows.
Pt specpH
Display

Temperature
Display
Unlit

Item selected in[Electrode RTD(p.28)]: No temperaturecompensation: Pt1000: Pt100

Cu specpH
Display

Display sleep function

Auto-light function
Cable length
correction

Zero indication

Slope indication

Temperature
Display
Unlit

Item selected in[Pt100 input wire
type (p.28)]: 2-wire type
: 3-wire type

Item selected in [Electrode RTD (p.28)]: No temperature compensation: Cu500’pH’, ’Temperature’ or ’No indication’ – which is indicated in pH/Temperature
Display Mode, or Cleansing Output Mode – can be selected in [Display
selection (p.32)].
If ’pH’ or ’Temperature’ is selected, and if indication time is set, the display(no operation status) becomes unlit after the indication time has passed.
By pressing any key, the display re-lights.
If the indication time is set to 0, the display remains lit, and this function
does not work.
Automatically measures and controls brightness of the pH Display,
Temperature Display and action indicators.
If(2-wire type) is selected in [Pt100 input wire type (p.28)], and if
sensor cable is too long, temperature measurement error will occur due tocable resistance. This can be corrected by setting the ‘cable length
correction value’ and ‘cable cross-section area’.
Indicates potential difference when pH 7 is calibrated.
However, if Manual calibration is performed, zero indication value calculated
at previous automatic calculation will not be updated.
If calibration is not successfully completed, zero indication will show thevalue before calibration.
From the voltage equivalent to the calibrated pH, electromotive force for thechange of pH 1 will be indicated. If calibration is not successfully completed,slope indication will show the value before calibration.

73

Error code

Error codes below flash on the Temperature Display.
OccurError
Error
Error
Description
Code
Type
Contents
rence
Response
When calibrating, the response
Error
Speed Errorof the pH Combined ElectrodeSensor is slow.
When the difference between the
input and each of the 1st and2nd solutions are within pH
1.50, and input fluctuation isover pH 0.05 (in 10 seconds
of assessment cycles) for 5
minutes, this is assumed to be
an error.
However, if input fluctuation isless than or equal to pH 0.05,
this is assumed to be within thenormal range.
When
Electrode
When calibrating, sensitivity of
Error
Sensitivity
the pH Combined ElectrodecalibratError
Sensor has deteriorated.
ing
The difference between 1st and2nd standard solution value
after calibration is less than orequal to pH 2.00.
AsymmetryWhencalibrating pH 7, theError
Potentialdifference in electromotive force
Error
between the sensor-measured
value and standard value exceeds
the equivalent of pH 1.50.
Standard
The specified standard solution
Error
Solution
has not been used.
Error
When pH 1.50 is exceeded forthe 1st and 2nd solutions.
Solution temWhen temperature is 55 orError
perature Error more at pH 10 solution.
Temp. Sensor Temperature sensor lead wire is
FailBurnout
burnt out.
When
Temp. Sensor Temperature sensor lead wire is measurFail
Short-circuited short-circuited.
ing orOutside Temp. Measured temperature has
ErrorcalibratCompen.Range exceeded 110.0 .
ing
Outside Temp. Measured temperature is less
Error
Compen.Range than 0.0 .

(Abbreviations: Temp.: Temperature,

Other
Power consumption
Ambient temperature
Ambient humidity
WeightAccessories included
Accessories soldseparately
Environmental
specification

Compen.: Compensation)

Approx. 8 VA
0 to 50
35 to 85 %RH (non-condensing)
Approx. 200 g (including the socket)
Instruction manual: 1 copy
Unit label: 1 sheet
Socket: ASK-001-1 (Finger-safe, terminal screw fall prevention)
RoHS directive compliant7412.2 Optional Specifications
A
Output (Option Code: EVT or TA)
If the measured value exceeds the A
value, the A
output will beAoutputactivated for each A
type.
Regardless of options being ordered, A
output status can be read byreading Status flag 2 (A11, A12, A21, A22 output flag bit) in Serial
communication.
If(No temperature compensation) is selected in [Electrode RTD(p.28)], Temperature input low limit and Temperature input high limit actions
will not work.
A
output status, when input errors occur, differs depending on theselections in [Aoutput when input errors occur (p.27)] as follows:• If(Disabled) is selected, the A
output and A
outputstatus will be turned OFF if input errors occur.
• If(Enabled) is selected, the A
output and A
outputstatus will be maintained if input errors occur.
If Transmission output 1 (TA option) is ordered, only A1 output can be
added.
pH input: pH 0.00 to 14.00
Setting range
Temperature input: 0.0 to 100.0(The placement of the decimal point does not follow the selection. It is fixed.)
ActionON/OFF action
pH input: pH 0.01 to 4.00
A
ON sideTemperature input: 0.1 to 10.0
A
OFF side(The placement of the decimal point does not follow the selection. It is fixed.)Onetype can be selected from the following with the keypad.
Atype
If ’No temperature compensation‘ is selected in [Electrode RTD (p.28)],
Temperature input low limit and Temperature input high limit actions will not
work.
• No action• pH input low limit action• pH input high limit action• Temperature input low limit action• Temperature input high limit action• Error output: The A
output will be turned ON when the error type is‘Error’. (Table 9.1.3-1, p.41)• Fail output: The A
output will be turned ON when the error type is‘Fail’. (Table 9.1.3-1, p.41)• Cleansing output• pH fluctuation alarm output• pH input High/Low limits independent action• Temperature input High/Low limits independent action
OutputRelay contact, 1a
Control capacity
3 A 250 V AC (resistive load)
1 A 250 V AC (inductive load, cos =0.4)
Electrical life
100,000 cycles
A
ON delay time 0 to 9999 seconds
A
OFF delay time 0 to 9999 seconds
A1, A2 output
A11 type, A12 type, A21 type and/or A22 type are allocated to A1 (or A2)
allocation
output. Output is OR output. However, if Cleansing output is selected inany one of [A11, A12, A21, A22 type], the Cleansing output will be given
priority.
Output ON time/
If Output ON time and OFF time are set, A1 (or A2) output can be turned
OFF time when
ON/OFF in a configured cycle when A1 (or A2) output is ON.
A1/A2 output ON75

pH input error alarm

pH fluctuation alarm
outputDetects actuator trouble.
Even if pH input error alarm time has elapsed – if the change in pH input issmaller than the pH input error alarm band – the instrument assumes that
actuator trouble has occurred, and sets Status flag 2 (A1, A2 pH input error
alarm output flag bit).
In Serial communication, status can be read by reading Status flag 2 (A1,A2 pH input error alarm output flag bit).
When pH is calibrated, this alarm is disabled.
If(pH input low limit action) or(pH input high limit action)is selected in [A11, A12, A21, A22 type (pp.21, 22)], this alarm is enabled.
Detects pH fluctuation errors.
Even if pH fluctuation alarm time has elapsed, – if the change in pH input
fluctuation is smaller than the pH fluctuation alarm band – the instrument
assumes that a pH fluctuation error has occurred, and sets Status flag 2(A11, A12, A21, A22 output flag bit).
Outputs when
(pH fluctuation alarm output) is selected in [A11,A12, A21, A22 type (pp.21, 22)].
This alarm will be disabled if pH fluctuation alarm time is set to 0 (zero)
hours, or if pH fluctuation alarm band is set to pH 0.00.

Transmission Output 1 (Option Code: TA)
Converting pH or temperature to analog signal every input sampling period,
Transmission output 1
and outputs the value in current.
(No temperature compensation) is selected in [Electrode RTD
If(p.28)], and if(Temperature transmission) is selected in[Transmission output 1 type (p.30)], the value set in [Reference
temperature (p.28)] will be output.
If Transmission output 1 high limit and low limit are set to the same value,
Transmission output 1 will be fixed at 4 mA DC.
(The placement of the decimal point does not follow the selection. It is fixed.)
Resolution
12000
Current
4 to 20 mA DC (Load resistance: Max 550 )Output accuracy
Within 0.3% of Transmission output 1 Span
Transmission output Fine adjustment of Transmission output 1 can be performed via
1 adjustment
Transmission output 1 Zero adjustment and Span adjustment.
Transmission output Transmission output 1 status can be selected when calibrating pH.
1 status when
Last value HOLD: Retains the last value before pH calibration, and outputs it.
calibrating
Set value HOLD: Outputs the value set in [Transmission output 1 value
HOLD when calibrating].
Measured value: Outputs the measured value when calibrating pH.
Transmission Output 2 (Option Code: TA2)
Converting pH or temperature to analog signal every input sampling period,
Transmission output 2
and outputs the value in current.
If(No temperature compensation) is selected in [Electrode RTD(Temperature transmission) is selected in(p.28)], and if[Transmission output 2 type (p.30)], the value set in [Reference
temperature (p.28)] will be output.
If Transmission output 2 high limit and low limit are set to the same value,
Transmission output 2 will be fixed at 4 mA DC.
(The placement of the decimal point does not follow the selection. It is fixed.)
Resolution
12000
Current
4 to 20 mA DC (Load resistance: Max 550 )Output accuracy
Within 0.3% of Transmission output 2 Span
Transmission output Fine adjustment of Transmission output 2 can be performed via
2 adjustment
Transmission output 2 Zero adjustment and Span adjustment.
Transmission output Transmission output 2 status can be selected when calibrating pH.
2 status when
Last value HOLD: Retains the last value before pH calibration, and outputs it.
calibrating
Set value HOLD: Outputs the value set in [Transmission output 2 value
HOLD when calibrating].
Measured value: Outputs the measured value when calibrating pH.
7613. Troubleshooting
If any malfunction occurs, refer to the following items after checking that power is being supplied to theWIL-102-PH.
13.1 Indication
ProblemPossible Cause
Solution
The pH/Temperature(No Indication) is selected Select(pH/Temperature).
Display is unlit.
in [Display selection (p.32)].
If any key is pressed while displays
The time set in [Indication time
are unlit, it will re-light.
(p.32)] has passed.
Set the indication time to a suitable
time-frame.
The pH/Temperature(Enabled) is selected in
Select(Disabled).
Display is dark.
[Auto-light function (p.31)].
Indication of thepH calibration and temperature
Perform pH calibration and
pH/Temperature Display
calibration may not have finished.
temperature calibration.
is unstable or irregular.
Electrode RTD selection might not Select a correct electrode RTD.
be correct.
Specification of the pH Combined
Replace the sensor with aElectrode Sensor may not besuitable one.
suitable.
There may be equipment that
Keep WIL-102-PH clear of any
interferes with or makes noise near potentially disruptive equipment.
the WIL-102-PH.
Try [Grounding of shield wire
terminal (E) (P.78)].
Temperature Display is(Unlit) is selected in
Select(Reference
unlit.
[Temperature Display when notemperature).
temperature compensation (p.32)].
[] is flashing on theThis shows that the response of
Rinse the pH Combined Electrode
Temperature Display.
the pH Combined ElectrodeSensor.
Sensor is slow when calibrating.
If [] is still flashing, check if
the standard solution and pH
Combined Electrode Sensor are
normal.
If they are not normal, replace thesolution or the sensor.
[] is flashing on theThis shows that pH electrodeRinse the pH Combined Electrode
Temperature Display.
sensitivity has deteriorated when
Sensor, and refill the internal
calibrating.
solution.
If [] is still flashing, replace
the sensor.
[] is flashing on the
When calibrating, electromotive
Rinse the pH Combined Electrode
Temperature Display.
force (asymmetry potential) of
Sensor, and refill the internal
pH 7 is large.
solution.
If [] is still flashing, replace
the sensor.
[] is flashing on the
When calibrating, the specified
Rinse the pH combined electrode
Temperature Display.
standard solution is not used.
sensor, and refill the internal
solution.
] is still flashing, use theIf [specified standard solution.
[] is flashing on the
When calibrating, temperature of
Check the liquid temperature of
Temperature Display.
pH 10 is 55 or higher.
pH 10.
77

Problem[] is flashing on theTemperature Display.
[] is flashing on theTemperature Display.
[] is flashing on theTemperature Display.
[] is flashing on theTemperature Display.
[] is indicating on
the pH Display.

Possible Cause
This occurs when the temperature
sensor lead wire is burnt out.
This occurs when the temperature
sensor lead wire is short-circuited.
This occurs when measured
temperature value exceeds
110.0 .
This occurs when measured
temperature value is less than
0.0 .
Internal memory is defective.

・Grounding of shield wire terminal (E)If the indication fluctuates due to noise, ground theshield wire terminal (E).
However, depending on the installation environment,
the symptom may not be improved.
In this case, disconnect the grounding of the shieldwire terminal (E) and return it to the original state.
(Depending on the type of sensor, the cable forthe shield wire terminal (E) may not be available.)

Check the environment of
measurement location.
Contact our agency or us.

Shielding braid

pH Combined
Electrode Sensor

13.2 Key Operation
ProblemPossible Cause• None of the set values can(Lock 1) is selected in [Setbe changed.
value lock (p.29)].
• The values do not changeby theandkeys.
• Only A
value can be(Lock 2) is selected in [Setset. Other settings are not value lock (p.29)].
possible.
• The values do not changeby theandkeys.
Unable to enter Manual(Cleansing output) is notcleansing mode.
selected in any one of [A11, A12,
A21 or A22 type (pp. 21, 22)].
Cleansing action is performing
using the ‘Cleansing time’ and‘Restore time after cleansing’
settings.
Unable to enter a(Lock 1),
(Lock 2)calibration mode (pHor(Lock 3) is selected incalibration mode or[Set value lock (p.29)].
Temperature calibration(Cleansing output) hasmode).
been selected in any one of [A11,A12, A21, A22 type (pp. 21, 22)],and cleansing action is performing
using the ‘Cleansing Time’ and‘Restore Time after Cleansing’
settings.
78

Solution
Replace the pH Combined
Electrode Sensor.
Replace the pH Combined
Electrode Sensor.
Check the environment of
measurement location.

SelectSolution(Unlock).

Select(Unlock).

Select(Cleansing
output) in any one of [A11, A12,
A21 or A22 type (pp. 21, 22)].
Execute Manual cleansing after
Cleansing action is completed.

Select(Unlock).

Perform calibration after cleansing
action is completed.

13.3 Communication
Check that power is being supplied to the master and slave that customers use.
If communication failure still occurs, check the following.
Problem
Communication failure

Although communication is occurring, theresponse is negative
acknowledgement.

Possible Cause
Communication cable is notsecurely connected, or is
disconnected/defective.
Incorrect wiring of thecommunication cable and/or
connector
Imperfect contact between thecommunication cable and theconnector, or between thecommunication connector andinstrument port
Communication speed of the slave
does not match that of the master.
The data bit, parity and stop bit of
the master do not correspond to
those of the slave.
The instrument number (address)of the slave does not correspondto that of the command.
The instrument numbers(addresses) are duplicated in
multiple slaves.
Make sure that the program isappropriate for the transmission
timing.
A non-existent command code has
been sent.
The setting command data
exceeds the setting range of theslave.
The WIL-102-PH cannot be set
while calibration is being
performed using the Automaticelectrode quality evaluation
function.
The WIL-102-PH is in front keypad
operation setting mode.

Solution
Check the communication cableand connector.
Check the communication cableand connector.
Check the communication cableand connector.

Check the communication speedof the slave and master.
Check the data bit, parity andstop bit of the master and theslave.
Check the instrument number(address) of the slave andcommand.
Check the instrument numbers(addresses) of the slave.
Check the program.

Check the command code.
Check the setting range of theslave.
Check the slave status.

Return the instrument to
pH/Temperature Display Mode, orCleansing Output Mode.

For all other malfunctions, please contact our main office or dealers.

7914. Character Tables
The following shows our character tables. Use data column for your reference.
Setting Groups
Character

Setting Group
pH Input Group
Temperature Input Group
Basic Function Group
Zero/Slope Indication Group

Temperature Calibration Mode
Character
Setting Item, Setting Range(*) Temperature calibration value
Setting range: -10.0 to 10.0(*)

Factory Default

Data

Factory Default

Data

0.0

and temperature are displayed alternately.

pH Calibration Mode (for pH manual calibration)
Character
Setting Item, Setting Range(*) pH calibration value

0.00

Setting range: -7.00 to 7.00(*)

and pH are displayed alternately.

Transmission Output 1 Adjustment Mode
Character
Setting Item, Setting Range
Factory Default
Transmission output 1 Zero
0.00%
adjustment value
Setting range: 5.00% of Transmission output 1 Span
Transmission output 1 Span
0.00%
adjustment value
Setting range: 5.00% of Transmission output 1 Span
Transmission Output 2 Adjustment Mode
Character
Setting Item, Setting Range
Factory Default
Transmission output 2 Zero
0.00%
adjustment value
Setting range: 5.00% of Transmission output 2 Span
Transmission output 2 Span
0.00%
adjustment value
Setting range: 5.00% of Transmission output 2 Span

80

Data

Data

pH Input Group
Character

Setting Item, Setting Range
Factory Default
pH 7 calibration standard
JIS: JIS (Japanese Industrial Standards): US standard
2nd solution
pH 4: pH 2: pH 4: pH 9: pH 10
Decimal point place
2 digits after decimal point: No decimal point: 1 digit after decimal point: 2 digits after decimal point
A11 type
No action: No action: pH input low limit action: pH input high limit action: Temperature input low limit action: Temperature input high limit action: Error output: Fail output: Cleansing output: pH fluctuation alarm output: pH input High/Low limits independent action: Temperature input High/Low limits independent action
A12 type
No action
Selection item: Same as those of [A11 type]
A21 type
No action
Selection item: Same as those of [A11 type]
A22 type
No action
Selection item: Same as those of [A11 type]A11 value
pH input: pH 0.00, Temperature input: 0.0
Setting range:
pH input low limit, high limit actions: pH 0.00 to 14.00 (*)
Temperature input low limit, high limit actions: 0.0 to 100.0 (*)
A12 value
pH input: pH 0.00, Temperature input: 0.0
Setting range: Same as those of [A11 value]
A21 value
pH input: pH 0.00, Temperature input: 0.0
Setting range: Same as those of [A11 value]
A22 value
pH input: pH 0.00, Temperature input: 0.0
Setting range: Same as those of [A11 value]
A11 hysteresis type
Reference Value: Medium Value: Reference Value
A11 ON side
pH input: pH 0.10, Temperature input: 1.0
Setting range:
pH input: pH 0.00 to 4.00 (*)
Temperature input: 0.0 to 10.0 (*)
A11 OFF side
pH input: pH 0.10, Temperature input: 1.0
Setting range:
pH input: pH 0.00 to 4.00 (*)
Temperature input: 0.0 to 10.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.
81

Data

Character

Setting Item, Setting Range

A12 hysteresis type

Factory Default
Reference Value

Selection item: Same as those of [A11 hysteresis type] (p.81)
A12 ON side
pH input: pH 0.10, Temperature input: 1.0
Setting range: Same as those of [A11 ON side] (p.81)
A12 OFF side
pH input: pH 0.10, Temperature input: 1.0
Setting range: Same as those of [A11 OFF side] (p.81)
A21 hysteresis type
Reference Value
Selection item: Same as those of [A11 hysteresis type] (p.81)
A21 ON side
pH input: pH 0.10, Temperature input: 1.0
Setting range: Same as those of [A11 ON side] (p.81)
A21 OFF side
pH input: pH 0.10, Temperature input: 1.0
Setting range: Same as those of [A11 OFF side] (p.81)
A22 hysteresis type
Reference Value
Selection item: Same as those of [A11 hysteresis type] (p.81)
A22 ON side
pH input: pH 0.10, Temperature input: 1.0
Setting range: Same as those of [A11 ON side] (p.81)
A22 OFF side
pH input: pH 0.10, Temperature input: 1.0
Setting range: Same as those of [A11 OFF side] (p.81)
A11 ON delay time
0 seconds
Setting range: 0 to 9999 seconds
A12 ON delay time
0 seconds
Setting range: 0 to 9999 seconds
A21 ON delay time
0 seconds
Setting range: 0 to 9999 seconds
A22 ON delay time
0 seconds
Setting range: 0 to 9999 seconds
A11 OFF delay time
0 seconds
Setting range: 0 to 9999 seconds
A12 OFF delay time
0 seconds
Setting range: 0 to 9999 seconds
A21 OFF delay time
0 seconds
Setting range: 0 to 9999 seconds
A22 OFF delay time
0 seconds
Setting range: 0 to 9999 seconds
A11 pH fluctuation alarm time
0 hours
Setting range: 0 to 72 hours
A12 pH fluctuation alarm time
0 hours
Setting range: 0 to 72 hours
A21 pH fluctuation alarm time
0 hours
Setting range: 0 to 72 hours
A22 pH fluctuation alarm time
0 hours
Setting range: 0 to 72 hours
A11 pH fluctuation alarm band
pH 0.00
Setting range: pH 0.00 to 14.00
A12 pH fluctuation alarm band
pH 0.00
Setting range: pH 0.00 to 14.00
A21 pH fluctuation alarm band
pH 0.00
Setting range: pH 0.00 to 14.00
82

Data

Character

Setting Item, Setting Range
Factory Default
A22 pH fluctuation alarm band
pH 0.00
Setting range: pH 0.00 to 14.00
A11 High/Low limits independent lower pH input: pH 0.00
side band
Temperature input: 0.0
Setting range: pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)
A12 High/Low limits independent lower pH input: pH 0.00
side band
Temperature input: 0.0
Setting range: Same as those of [A11 High/Low limits independent
lower side band]
A21 High/Low limits independent lower pH input: pH 0.00
side band
Temperature input: 0.0
Setting range: Same as those of [A11 High/Low limits independent
lower side band]
A22 High/Low limits independent lower pH input: pH 0.00
side band
Temperature input: 0.0
Setting range: Same as those of [A11 High/Low limits independent
lower side band]
A11 High/Low limits independent
pH input: pH 0.00
upper side band
Temperature input: 0.0
Setting range: pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)
A12 High/Low limits independent
pH input: pH 0.00
upper side band
Temperature input: 0.0
Setting range: Same as those of [A11 High/Low limits independent
upper side band]
A21 High/Low limits independent
pH input: pH 0.00
upper side band
Temperature input: 0.0
Setting range: Same as those of [A11 High/Low limits independent
upper side band]
A22 High/Low limits independent
pH input: pH 0.00
upper side band
Temperature input: 0.0
Setting range: Same as those of [A11 High/Low limits independent
upper side band]
A11 hysteresis
pH input: pH 0.10
Temperature input: 1.0
Setting range: pH input: pH 0.01 to 4.00 (*)
Temperature input: 0.1 to 10.0 (*)
A12 hysteresis
pH input: pH 0.10
Temperature input: 1.0
Setting range: Same as those of [A11 hysteresis]
A21 hysteresis
pH input: pH 0.10
Temperature input: 1.0
Setting range: Same as those of [A11 hysteresis]
A22 hysteresis
pH input: pH 0.10
Temperature input: 1.0
Setting range: Same as those of [A11 hysteresis]A
output when input errors occur
Disabled
Selection item:: Enabled: Disabled
pH input filter time constant
0.0 seconds
Setting range: 0.0 to 60.0 seconds
pH input sensor correction
Setting range: pH -1.40 to 1.40 (*)
pH inputs for moving average
Setting range: 1 to 120

0.00
20

(*) The placement of the decimal point does not follow the selection. It is fixed.
83

Data

Temperature Input Group
Character
Setting Item, Setting Range
Electrode RTD

Factory Default
Pt spec: Pt1000
Cu spec: Cu500

Data

Pt spec: No temperature compensation: Pt1000: Pt100
Cu spec: No temperature compensation: Cu500
Reference temperature
25.0
Setting range: 5.0 to 95.0 (*)
Decimal point place
1 digit after decimal point: No decimal point: 1 digit after decimal point
3-wire type
Pt100 input wire type
: 2-wire type
: 3-wire type
Cable length correction
0.0 m
Setting range: 0.0 to 100.0 m
Cable cross-section area
0.30 mm22
Setting range: 0.10 to 2.00 mm
Temperature inputs for moving
20
average
Setting range: 1 to 120(*) The placement of the decimal point does not follow the selection. It is fixed.
Basic Function Group
Character
Setting Item, Setting Range
Set value lock
: Unlock: Lock 1: Lock 2: Lock 3
Communication protocol: Shinko protocol: MODBUS ASCII mode
: MODBUS RTU mode
Instrument number
Setting range: 0 to 95
Communication speed: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity: 8 bits/No parity: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd

84

Factory Default
UnlockShinko protocol

09600 bps

7 bits/Even

Data

Character

Setting Item, Setting Range
Factory Default
Stop bit
1 bit: 1 bit: 2 bits
Transmission output 1 typepH transmission: pH transmission: Temperature transmission
Transmission output 1 high limit
pH 14.00
pH transmission: Transmission output 1 low limit to pH 14.00 (*)
Temperature transmission: Transmission output 1 low limit to 100.0 (*)
Transmission output 1 low limit
pH 0.00
pH transmission: pH 0.00 to Transmission output 1 high limit (*)
Temperature transmission: 0.0 to Transmission output 1 high limit (*)
Transmission output 2 type
Temperature transmission
Selection item: Same as those of [Transmission output 1 type]Transmission output 2 high limit
100.0

Setting range: Same as those of [Transmission output 1 high limit]
Transmission output 2 low limit
0.0
Setting range: Same as those of [Transmission output 1 low limit]
Transmission output 1 status when calibrating
Last value HOLD
: Last value HOLD
: Set value HOLD
: Measured value
pH transmission: pH 0.00
Transmission output 1 value
Temperature transmission: 0.0
HOLD when calibrating
pH transmission : pH 0.00 to 14.00 (*)
Temperature transmission : 0.0 to 100.0 (*)
Transmission output 2 status when calibrating
Last value HOLD
Selection item: Same as those of [Transmission output 1 status whencalibrating]Transmission output 2 value
pH transmission: pH 0.00
HOLD when calibrating
Temperature transmission: 0.0
Setting range: Same as those of [Transmission output 1 value HOLD
when calibrating]pH calibration Auto/Manual
Automatic: Automatic: Manual
Auto-light function
Disabled: Disabled: Enabled
Display selection
pH/Temperature
pH Display

Temperature Display
Temperature
No indication
Temperature
No indication

pH
pH
No indication
No indication
Indication time
00.00 (Remains lit))
00.01 to 60.00 (Minutes.Seconds)

00.00(*) The placement of the decimal point does not follow the selection. It is fixed.
85

Data

Character

Setting Item, Setting Range
Factory Default
Temperature Display when no
Unlit
temperature compensation: Reference temperature: UnlitA1 output allocation
A11 type: A11 type
: A12 type
: A21 type
: A22 type
: A11, A12 types: A21, A22 types: A11, A21 types: A12, A22 types: A11, A12, A21, A22 types
A2 output allocation
A21 type
Selection item: Same as those of [A1 output allocation]
Output ON time when A1 output ON
0 seconds
Setting range: 0 to 9999 seconds
Output OFF time when A1 output ON 0 seconds
Setting range: 0 to 9999 seconds
Output ON time when A2 output ON
0 seconds
Setting range: 0 to 9999 seconds
Output OFF time when A2 output ON 0 seconds
Setting range: 0 to 9999 seconds
A1 pH input error alarm A
type
No action: No action: A11 type
: A12 type
: A21 type
: A22 typeA2 pH input error alarm A
type
No action
Selection item: Same as [A1 pH input error alarm A
A1 pH input error alarm band when
pH 0.00
A
output ON
Setting range: pH 0.00 to 14.00
A1 pH input error alarm time when0 secondsA
output ON
Setting range: 0 to 9999 seconds or minutes (*)
A1 pH input error alarm band when
pH 0.00
A
output OFF
Setting range: pH 0.00 to 14.00
A1 pH input error alarm time when0 secondsA
output OFF
Setting range: 0 to 9999 seconds or minutes (*)
A2 pH input error alarm band when
pH 0.00
A
output ON
Setting range: pH 0.00 to 14.00(*) The time unit depends on the selection in [pH input error alarm time unit].

86

type].

Data

Character

Setting Item, Setting Range
Factory Default
A2 pH input error alarm time when0 secondsA
output ON
Setting range: 0 to 9999 seconds or minutes (*1)
A2 pH input error alarm band when
pH 0.00
A
output OFF
Setting range: pH 0.00 to 14.00
A2 pH input error alarm time when0 secondsA
output OFF
Setting range: 0 to 9999 seconds or minutes (*1)
pH input error alarm time unit
Second(s): Second(s): Minute(s)Number of cleansing cycles
0 (Continuous cleansing)
Setting range: 0 to 10 (0: Continuous cleansing)
Cleansing interval
360 minutes
Setting range: 60 to 3000 minutes
Cleansing time
600 seconds
Setting range: 1 to 1800 seconds
Restore time after cleansing
600 seconds
Setting range: 1 to 1800 seconds
Transmission output 1 status when
Last value HOLD
cleansing: Last value HOLD
: Set value HOLD
: Measured value
Transmission output 1 value
pH transmission: pH 0.00
HOLD when cleansing
Temperature transmission: 0.0
pH transmission : pH 0.00 to 14.00 (*2)
Temperature transmission : 0.0 to 100.0 (*2)
Transmission output 2 status when
Last value HOLD
cleansing

Data

Selection item: Same as [Transmission output 1 status when cleansing]Transmission output 2 value
pH transmission: pH 0.00
HOLD when cleansing
Temperature transmission: 0.0
Selection item: Same as [Transmission output 1 value HOLD whencleansing](*1) The time unit depends on the selection in [pH input error alarm time unit].
(*2) The placement of the decimal point does not follow the selection. It is fixed.
Zero/Slope Indication Group
Character
Setting Item, Indication Range
Factory Default
Zero indication
0.0 mV
Indication range: Voltage equivalent to pH 1.5
Slope indication
59.2 mV
Indication range: Voltage equivalent to pH 0.00 to 14.00

87

Data

*****

Inquiries*****

For any inquiries about this unit, please contact our agency or thevendor where you purchased the unit after checking the following.
[Example]• Model--------------------------- WIL-102-PH• Serial number----------------- No. 195F05000

In addition to the above, please let us know the details of themalfunction / discrepancy, and the operating conditions.

SHINKO TECHNOS CO., LTD.
OVERSEAS DIVISION
Head Office:2-5-1, Senbahigashi, Minoo, Osaka, 562-0035, Japan[URL][E-mail]

https://shinko-technos.co.jp/e/overseas@shinko-technos.co.jp

Tel: +81-72-727-6100
Fax: +81-72-727-7006
No. WIL11CPHE10

2021.10