Plug-in Type
Digital Indicating Conductivity Meter

WIL-102-ECH (High Concentration)
Instruction ManualPreface
Thank you for purchasing our WIL-102-ECH (High Concentration), Plug-in Type Digital Indicating Conductivity
Meter.
This manual contains instructions for the mounting, functions, operations and notes when operating theWIL-102-ECH. 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 this manual.

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 indoors. 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 thecircumstances, 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 tomedium injury or physical damage or may degrade or damage the product, if
not carried out properly.

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.
2

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.

Meaning of Warning Message on Model Label

CautionIf do not handle this instrument correctly, may suffer minor or moderate injury or property damage due
to fire, malfunction, or electric shock. Please read this manual carefully and fully understand it before
using it.

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 large current is flowing• No water, oil, chemicals or the vapors of these substances can come into direct contact with theunit• If the WIL-102-ECH 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 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 ofthis 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 and/or a malfunction.
• Use a solderless terminal with an insulation sleeve in which the M3 screw fits when wiring theWIL-102-ECH.
• 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 4-electrode Conductivity Sensor in accordance with the sensor input specifications of theWIL-102-ECH.
• Keep the input wires and power lines separate.
Note about the 4-Electrode Conductivity Sensor Cable
The 4-electrode Conductivity Sensor cable is a highly-insulated (electrical) cable. Please handle itwith utmost care as follows.
• Do not allow terminals and socket of the 4-electrode Conductivity 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 4-electrode Conductivity Sensor cable should
be wired with sufficient length.
• Keep the 4-electrode Conductivity Sensor cable and junction cable away from electrical devices,such as motors or their power lines from which inductive interference emanates.
Connection
The 4-electrode Conductivity Sensor cable has the following terminals.
Code
Terminal
1
Conductivity sensor terminal 1
2
Conductivity sensor terminal 2
3
Conductivity sensor terminal 3
4
Conductivity sensor terminal 4A, B (T, T) Temperature compensation sensor terminals [Pt100 (2-wire), Pt1000] 5-6
A, B, B
Temperature compensation sensor terminals [Pt100 (3-wire)] 5-6-7
E
Shield wire terminal 8
For the electrode with no temperature compensation, A, B (T, T) or A, B, B cables are not available.
E cables are available depending on the sensor type.
During operation, the Conductivity/Temperature Display may become abnormal or unstable due toinductive interference or noise. In this case, try [Grounding of shield wire terminal (E) (P.77)].

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

4. Compliance with Safety Standards

Caution• Always install the recommended fuse described in this manual externally.
• If the instrument is used in a manner not specified by the manufacturer, the protection provided by the
instrument may be impaired.
• Use equipment that is reinforced-insulated or double-insulated from the primary power supply forexternal circuits connected to this instrument.
• When using this product as a UL certified product, use a power supply conforming to Class 2 or LIM forthe external circuit connected to the product.

Contents
1. Model .............................................................................................................................................................7
1.1 Model.......................................................................................................................................................7
1.2 How to Read the Model Label .................................................................................................................7
2. Names 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 ON. ...................................................................................................................20
8.2 Conductivity Input Group.......................................................................................................................20
8.3 Temperature Input Group ......................................................................................................................30
8.4 Basic Function Group ............................................................................................................................31
9. Calibration ....................................................................................................................................................39
9.1 Conductivity Calibration Mode ...............................................................................................................39
9.2 Temperature Calibration Mode ..............................................................................................................41
9.3 Transmission Output 1 Adjustment Mode ..............................................................................................42
9.4 Transmission Output 2 Adjustment Mode ..............................................................................................43
10. Measurement .............................................................................................................................................44
10.1 Starting Measurement .........................................................................................................................44
10.2 A
Output........................................................................................................................................44
10.3 Conductivity Input Error Alarm .............................................................................................................45
10.4 Error Output .........................................................................................................................................45
10.5 Fail Output ...........................................................................................................................................45
10.6 Error Code during Measurement .........................................................................................................45
10.7 Transmission Output 1 and 2 ...............................................................................................................45
11. Communication...........................................................................................................................................46
11.1 System Configuration Example............................................................................................................465

11.2 Setting Method of the Conductivity Meter ............................................................................................47
11.3 Communication Procedure ..................................................................................................................48
11.4 Shinko Protocol....................................................................................................................................49
11.4.1 Transmission Mode .................................................................................................................... 49
11.4.2 Command Configuration ............................................................................................................. 49
11.4.3 Checksum Calculation ................................................................................................................ 50
11.5 MODBUS Protocol ...............................................................................................................................51
11.5.1 Transmission Mode .................................................................................................................... 51
11.5.2 Data Communication Interval ..................................................................................................... 51
11.5.3 Message Configuration ............................................................................................................... 51
11.5.4 Message Example ...................................................................................................................... 53
11.6 Communication Command Table .........................................................................................................55
11.6.1 Notes about Setting/Reading Command .................................................................................... 55
11.6.2 Setting/Reading Command......................................................................................................... 56
11.6.3 Read Only Command ................................................................................................................. 62
11.7 Conductivity & Temperature Calibrations, Transmission Output 1 & 2 Adjustments ............................64
via Communication Command............................................................................................................... 64
11.7.1 Conductivity Calibration .............................................................................................................. 64
11.7.2 Temperature Calibration ............................................................................................................. 65
11.7.3 Transmission Output 1 Adjustment ............................................................................................. 65
11.7.4 Transmission Output 2 Adjustment ............................................................................................. 66
11.8 Notes on Programming Monitoring Software .......................................................................................67
11.8.1 How to Speed up the Scan Time ................................................................................................ 67
11.8.2 How to Read the Set Value Changes Made by Front Keypad Operation ................................... 67
11.8.3 Note when Sending All Set Values Simultaneously .................................................................... 67
12. Specifications .............................................................................................................................................68
12.1 Standard Specifications .......................................................................................................................68
12.2 Optional Specifications ........................................................................................................................73
13. Troubleshooting ..........................................................................................................................................77
13.1 Indication .............................................................................................................................................77
13.2 Key Operation .....................................................................................................................................78
13.3 Communication ...................................................................................................................................78
14. Temperature Compensation Method ..........................................................................................................79
14.1 Temperature Compensation Based on the Temperature Characteristics of NaCl ................................79
14.2 How to Input Temperature Coefficient .................................................................................................79
15. Character Tables ........................................................................................................................................816

1. Model
1.1 Model
WIL-102

Input Points

2

Input

-EC

H

,
2 points
4-electrode Conductivity Sensor(Temperature element: Pt100) (*1)
4-electrode Conductivity Sensor(Temperature element: Pt1000) (*1)

EC

Concentration
Power Supply Voltage

OptionH

High concentration
100 to 240 V AC (standard)
1
EVT

24 V AC/DC (*2)
A
output (A11, A12, A21, A22)TA
TA2Transmission output 1 (*3)
Transmission 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 ‘ECH’.
(*3) If TA option is ordered, the EVT option (A1 output only) will be added.
1.2 How to Read the Model Label
The model label is attached to the left side of the case.
Model, Option
Conductivity input
Temperature input (Temperature element: Pt100 or Pt1000)
Power supply voltage, Power consumption
Serial number
Manufacturer
Factory ID
RoHS directive compliant(Fig. 1.2-1)

7

2. Names and Functions of InstrumentPWR Indicator
Conductivity Display (CH1)

Unit label (CH1)

Temperature Display (CH2)

Unit label (CH2)
T/R Indicator

A1 Indicator

A2 Indicator
UP keyMODE key

DOWN key

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

Displays
Conductivity Display(CH1)
Temperature Display(CH2)
Unit label (CH1)
Unit label (CH2)

Action IndicatorsPWR Indicator
A1 Indicator
A2 Indicator
T/R Indicator

Conductivity, or characters in setting mode are indicated in red.
Indications differ depending on the selections in [Display selection (p.34)].
Temperature, or values in setting mode are indicated in red.
Indications differ depending on the selections in [Display selection (p.34)].
Attach the user’s unit of Conductivity Display (CH1) from the included unit
labels if necessary.
Attach the user’s unit of Temperature Display (CH2) from the included unit
labels if necessary.

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

Key
UP keyDOWN key
MODE key
SET/RESET key
Light Sensor

Increases the numeric value.
Decreases the numeric value.
Selects a setting group.
Switches the setting modes, and registers the set value.
Automatically measures and controls brightness of the Conductivity 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 38)” 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-ECH 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 of electronicparts (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 large current is flowing• No water, oil, chemicals or the vapors of these substances can come into direct contact withthe unit
3.2 External Dimensions (Scale: mm)
Socket (sold separately)

3

85

DIN rail

30

(29)

79

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-ECH into the socket, wire the unit. Refer 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-ECH into the socket.

When inserting, be careful about
the position of pins and slots.
(Fig. 3.3-3)(4) Fix the WIL-102-ECH and the socket by pushing the Lock Release up.
Check that the WIL-102-ECH 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-ECH from the socket.
Check that the WIL-102-ECH and thesocket are unlocked by pulling the Lock
Release down.

Lock Release(Fig. 4-1)
(3) Separate the WIL-102-ECH 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 whentightening, 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 4-electrode Conductivity Sensor in accordance with the sensor input specifications of this unit.
• Keep the input wires and power lines separate.
Note about the 4-Electrode Conductivity Sensor Cable
The 4-electrode Conductivity Sensor cable is a highly-insulated (electrical) cable. Please handle itwith utmost care as follows.
• Do not allow terminals and socket of the 4-electrode Conductivity 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 4-electrode Conductivity Sensor cable should
be wired with sufficient length.
• Keep the 4-electrode Conductivity Sensor cable and junction cable away from electrical devices, suchas motors or their power lines from which inductive interference emanates.
Connection
The 4-electrode Conductivity Sensor cable has the following terminals.
Code
Terminal
1
Conductivity sensor terminal 1
2
Conductivity sensor terminal 2
3
Conductivity sensor terminal 3
4
Conductivity sensor terminal 4A, B (T, T) Temperature compensation sensor terminals [Pt100 (2-wire), Pt1000] 5-6
A, B, B
Temperature compensation sensor terminals [Pt100 (3-wire)] 5-6-7
E
Shield wire terminal 8
For the electrode with No Temperature Compensation, A, B (T, T) or A, B, B cables are not available.
E cables are available depending on the sensor type.
During operation, the Conductivity/Temperature Display may become abnormal or unstable due toinductive interference or noise. In this case, try [Grounding of shield wire terminal (E) (P.77)].

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.
Solderless
Terminal

Model
TMEX1.25Y-3S

3.2 mm minimum

NICHIFU TERMINAL INDUSTRIES CO., LTD.

5.9 mm max.

Y-typeManufacturer

4 mm max.

4.8 mm minimum(Fig. 5.1-1)
5.2 Terminal Arrangement

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

1, 2, 3, 4: Conductivity sensor terminals 1, 2, 3, 4(①-②-③-④)
A, B:
Temperature compensation sensor terminals(T, T)(5-6)
Temperature element: Pt100 (2-wire type),
Pt1000A, B, B: Temperature compensation sensor terminals(5-6-7)
Temperature element: Pt100 (3-wire type)E:
Shield wire terminal ( 8 )When EVT option is ordered:
A1: A1 output terminals ( 9 - 10 )A2: A2 output terminals ( 11 - 12 )When TA option is ordered:
A1: A1 output terminals ( 9 - 10 )TRANSMIT OUTPUT 1:
Transmission output 1 terminals ( 11 - 12 )When TA2 option is ordered:
TRANSMIT OUTPUT2:
Transmission output 2 terminals ( 9 - 10 )TRANSMIT OUTPUT1 :Transmission output 1 terminals ( 11 - 12 )POWER SUPPLY:Power terminals ( 13 - 14 )24 V AC/DC (When "1" is added aftermodel name.)
RS-485: Serial Communication modular jack
When no option is ordered:
A1, A2, TRANSMIT OUTPUT1,
TRANSMIT OUTPUT2 terminals are
not equipped.
13

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

Host computer
USB port

CMC-001-3 (sold separately)

CDD (sold separately) or CPP (sold separately)

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

FG

Host Computer
D-sub 9-pin Connector

CDD (sold separately) or CPP (sold separately)

Bottom of IF-400 and WIL-102-ECH(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 to the communication line because each WIL-102-ECH 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 Conductivity/Temperature Display Mode. The unit enters Group Selectionmode.
Select a group with thekey, and press the
key. The unit enters each setting item.
To set each item, use theorkey, and register the set value with thekey.
Abbreviations:Temp.: Temperature
Calib.: Calibration
Adjust: Adjustment

6.2 Setting Groups
Power ON+

(3 sec)Temp. Calib. Mode+

(3 sec)Conductivity Calib.
Zero Adjust. Mode

Conductivity Calib.
Span Adjust. 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

Conductivity/Temperature
Display Mode (*)++

Group Selection ModeSee pages 18-38 for details of each setting item.

Conductivity Input
Group

Sensor cell
constant

Conductivity inputs
for moving average

Temperature Input
Group

Temperature compensation method

Temperature inputs
for moving average

Basic FunctionGroup

Set value lock

Conductivity input
error alarm time unit(*) Indicates the item selected in [Display selection (p.34)] in Conductivity/Temperature Display Mode.

16

Available when the TA option or TA2 option is ordered.
Key Operation
•

+

•

+

•

+

•

+

•

,

•

or

(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 Conductivity Calibration Zero Adjustment Mode.
(3 sec): Press and hold the
key andkey (in that order) together for 3 seconds.
The unit enters Transmission Output 1 Zero Adjustment Mode.
(3 sec): Press and hold the
key andkey (in that order) together for 3 seconds.
The unit enters Transmission Output 2 Zero Adjustment Mode.
: Press theorkey. The unit will enter the next setting item, illustrated by an arrow.
: Press theor

key until the desired setting mode appears.

• To revert to Conductivity/Temperature Display Mode, press and hold thewhile in any mode.

17

key for 3 seconds

7. Key Operation Flowchart

Abbreviations:
Adjust.: Adjustment
H/L: High/Low limits

Power ON
Conductivity/Temperature Display Mode+

(3 sec)Temperature Calibration
Mode(P.41)+(3 sec)Conductivity Calibration

Conductivity Calibration

Zero Adjust. Mode (P.39)

Span Adjust. Mode (P.40)+(3 sec)Transmission output 1
Zero Adjust. Mode (P.42)

Transmission output 1
Span Adjust. Mode (P.42)+(3 sec)Transmission output 2
Zero Adjust. Mode (P.43)

Transmission output 2
Span Adjust. Mode (P.43)

Conductivity Input
Group

Temperature Input
Group

Sensor cell constant(P.20)A12 OFF side
(P.25)A22 H/L independent
lower side span (P.27)

Temperature compensation method (P.30)

Cell constantcorrection value (P.20)

A21 hysteresis type(P.25)A11 H/L independent
upper side span (P.27)

Temperature coefficient(P.30)

Measurement unit
(P.21)A21 ON side
(P.25)A12 H/L independent
upper side span (P.27)

Reference
temperature

Measurement range(P.21)A21 OFF side
(P.25)A21 H/L independent
upper side span (P.27)

Decimal point place(P.30)

TDS conversion
factor
(P.22)

A22 hysteresis type(P.25)A22 H/L independent
upper side span (P.27)

Pt100 input wire type
(P.30)

A11 type

A22 ON side

A11 hysteresis(P.28)

Cable length correction(P.30)(P.28)

Cable cross-sectionarea(P.30)(P.28)

Temperature input filter
time constant(P.30)(P.29)

Temperature inputs formoving average (P.31)(P.22)
A12 type

(*2)

(*2)

(*2)

(*2)

(P.25)A22 OFF side

A12 hysteresis(P.23)(*2)

A21 hysteresis(P.23)A11 ON delay time
(P.25)

A22 hysteresis(P.23)A12 ON delay time
(P.26)(P.23)A21 ON delay time
(P.26)

A
output when input
errors occur(P.29)(P.23)A22 ON delay time
(P.26)

Conductivity input filter
time constant(P.29)(P.23)A11 OFF delay time
(P.26)

Conductivity input
sensor correction(P.29)(P.23)A12 OFF delay time
(P.26)

3-electrode Conductivity
Sensor resistance (P.29)

A11 hysteresis type
(P.24)A21 OFF delay time
(P.26)

Conductivity inputs formoving average (P.29)

A11 ON side
(P.24)A22 OFF delay time
(P.26)(P.25)A11 H/L independent
lower side span (P.26)

A12 hysteresis type(P.25)A12 H/L independent
lower side span (P.26)

A12 ON side

A21 H/L independent
lower side span (P.27)

A21 type

A22 type

A11 value(*1)

A12 value(*1)

A21 value(*1)

A22 value
(*1)

(*2)

A11 OFF side
(*2)

(*2)

(P.25)(P.25)

18①(P.30)②

● About Setting Items
Sensor cell constant(P.20)
Transmission output 1
type(P.32)(P.32)• Upper left: Conductivity 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 selection in [Atype]. Conductivity input: 0.00,

Temperature input: 0.0(*2): Factory default value is different depending on the selection in [Atype]. Conductivity input: 0.10,

Temperature input: 1.0● About Key Operation•+(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 Conductivity calibration zero adjustment 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 Conductivity/Temperature Display Mode, press and hold the
key for 3 sec while in any mode.
Abbreviation:
Trans: Transmission①

Basic Function GroupSet value lock

Indication time
(P.31)(P.34)

Communication
protocol(P.31)

Temperature Display when notemperature compensation (P.34)

Instrument number(P.31)

A1 output allocation

Communication
speed(P.31)

A2 output allocation

Data bit/Parity(P.31)

Output ON time whenA1 output ON(P.35)(P.32)

Output OFF time whenA1 output ON(P.36)

Transmmision output 1
type(P.32)

Output ON time whenA2 output ON(P.36)

Transmmision output 1
high limit(P.32)

Output OFF time whenA2 output ON(P.36)

Transmmision output 1
low limit(P.32)

A1 conductivity input error
alarm A
type
(P.36)

Transmmision output 2
type(P.32)

A2 conductivity input error
alarm A
type
(P.36)

Transmmision output 2high limit(P.33)

A1 conductivity input error alarmband when A
output ON (P.37)

Transmmision output 2
low limit(P.33)

A1 conductivity input error alarmtime when A
output ON (P.37)

Trans. output 1 statuswhen calibrating (P.33)

A1 conductivity input error alarmband when A
output OFF (P.37)

Trans. output 1 value
HOLD when calibrating(p.33)

A1 conductivity input error alarmtime when A
output OFF (P.37)

Trans. output 2 statuswhen calibrating (P.33)

A2 conductivity input error alarmband when A
output ON (P.37)

Trans. output 2 value
HOLD when calibrating(p.34)

A2 conductivity input error alarmtime when A
output ON (P.38)

Auto-light function(P.34)

A2 conductivity input error alarmband when A
output OFF (P.38)

Display selection(P.34)

A2 conductivity input error alarmtime when A
output OFF (P.38)

Stop bit②(P.35)(P.35)

19

Conductivity input error
alarm time unit (P.38)

8. Setup
Before using this instrument, setup should be performed to suit the conditions of usage:
Setting the Cell constant correction value, Measurement unit, A11, A12, A21 and A22 types,
Temperature compensation method, Communication, A
output when input errors occur, etc.
Setup can be conducted in the Conductivity Input Group, Temperature Input Group and Basic Function
Group.
If the user’s specification is the same as the factory default value of the WIL-102-ECH, or if setup has
already been completed, it is not necessary to set up the instrument. Proceed to Section “9. Calibration(p.39)”.
8.1 Turn the Power Supply ON.
For approximately 4 seconds after the power is switched ON, the input characters are indicated on
the Conductivity Display and Temperature Display. See (Table. 8.1-1).
(Table. 8.1-1)
Display
Character
Measurement Unit
Conductivity (mS/cm, S/cm)
Conductivity (S/m, mS/m)
Conductivity Display
Seawater salinity (%)
NaCl salinity (%)
TDS conversion (g/L, mg/L)
Input Temperature
Selection Item in
Display
CharacterSpecification (*)[Pt100 Input Wire Type] (p.30): 2-wire type
Pt100
Temperature Display: 3-wire type
Pt1000(*) This input temperature specification was specified when ordering.
During this time, all outputs are in OFF status, and LED indicators except the PWR Indicator turn off.
After that, measurement starts, indicating the item selected in [Display selection (p.34)].
This status is called Conductivity/Temperature Display Mode.
8.2 Conductivity Input GroupTo enter the Conductivity Input Group, follow the procedure below.
1
Press thekey in Conductivity/Temperature Display Mode.
2
Press thekey.
The unit enters the Conductivity Input Group, and “Sensor cell constant” is indicated.
Character
Setting Item, Function, Setting Range
Factory Default
Sensor cell constant
1.0/cm• Selects sensor cell constant.
If the Sensor cell constant is changed, Conductivity Zero and Span adjustment
values and Cell constant correction value will be cleared.
Set the Cell constant correction value again, and re-calibrate the Conductivity Zeroand Span adjustment values.
• Selection item:: 1.0/cm: 10.0/cm
Cell constant correction value
1.000• Sets sensor cell constant correction value.
and conductivity are displayed alternately.
• Setting range: 0.001 to 5.000

20Character

Setting Item, Function, Setting Range
Factory Default
Measurement unit
Conductivity (mS/cm, S/cm)• Selects the conductivity unit.
If the conductivity unit is changed, Conductivity Zero and Span adjustment values
will be cleared. Re-calibrate the Conductivity Zero and Span adjustment values.
However, if the following is changed, the Conductivity Span adjustment value will
not be cleared. Re-calibrate only the Conductivity Zero adjustment value.
• Changing from Conductivity (mS/cm, S/m) to Seawater salinity (%) or NaCl
salinity (%).
• Changing from Seawater salinity (%) or NaCl salinity (%) to Conductivity (mS/cm,
S/m).
• Changing from Seawater salinity (%) to NaCl salinity (%).
• Selection item:: Conductivity (mS/cm, S/cm): Conductivity (S/m, mS/m): Seawater salinity (%): NaCl salinity (%): TDS conversion (g/L, mg/L)
Measurement range
20.00 mS/cm• Selects the measurement range of conductivity.
If measurement range is changed, Conductivity Zero and Span adjustment values
will be cleared.
Re-calibrate the Conductivity Zero and Span adjustment values.
• Selection item differs depending on the sensor cell constant and measurement unit.
When sensor cell constant 1.0/cm is selected:(Table 8.2-1)
Measurement Unit
Selection Item
Measurement Range
0.00 to 20.00 mS/cm
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 500 mS/cm
Conductivity
0.000 to 2.000 mS/cm(mS/cm, S/cm)
0.000 to 5.000 mS/cm
0.00 to 50.00 mS/cm
0 to 2000 S/cm
0 to 5000 S/cm
0.000 to 2.000 S/m
0.00 to 20.00 S/m
0.00 to 50.00 S/m
0.0 to 50.0 S/m
Conductivity(S/m, mS/m)
0 to 2000 mS/m
0.000 to 5.000 S/m
0.0 to 200.0 mS/m
0.0 to 500.0 mS/m
0.0 to 20.0 g/L
0 to 200 g/L
TDS conversion
0 to 500 g/L(g/L, mg/L)
0 to 2000 mg/L
0 to 5000 mg/L
Seawater salinity (%)
0.00 to 4.00%
NaCl salinity (%)
0.00 to 20.00%

21

Character

Setting Item, Function, Setting Range
Factory Default
When sensor cell constant 10.0/cm is selected:(Table 8.2-2)
Measurement Unit Selection Item
Measurement Range
0.0 to 200.0 mS/cm
Conductivity
0.0 to 500.0 mS/cm(mS/cm)0 to 2000 mS/cm
0.00 to 20.00 S/m
Conductivity
0.00 to 50.00 S/m(S/m, mS/m)
0.0 to 200.0 S/m
0 to 200 g/L
TDS conversion (g/L)
0 to 500 g/L
0 to 2000 g/L
Seawater salinity (%)
0.00 to 4.00%
NaCl salinity (%)
0.00 to 20.00%
TDS conversion factor
0.50• Sets TDS conversion factor.
Available only when
[TDS conversion (g/L)] is selected in [Measurement unit].
• Setting range: 0.30 to 1.00
A11 type
No action• Selects an A11 type.
Note: If A11 type is changed, the A11 value defaults to 0.00 or 0.0.
•
: No action: Conductivity input low limit action (Fig. 8.2-1): Conductivity 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 [Output turns ON when the error type is "Error".(Table 8.2-3)] (p.23): Fail output [Output turns ON when the error type is "Fail". (Table 8.2-3)] (p.23): Conductivity input High/Low limits independent action (Fig. 8.2-2) (p.23): Temperature input High/Low limits independent action (Fig. 8.2-2) (p.23)• A11 action (Activated based on the indication value.)
Conductivity input low limit action,
Conductivity input high limit action,
Temperature input low limit action
Temperature input high limit action
If Medium Value is selected in [A11hysteresis type]:

If Medium Value is selected in [A11hysteresis type]:

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 ()].
22

Character

Setting Item, Function, Setting Range

Factory Default

Conductivity 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 span

A11 value

A11 High/Low limits
independent upper side span

(Fig. 8.2-2)• Error output, Fail output(Table. 8.2-3)
Error Type
Error
Description
Temperature sensor
Fail
Temperature sensor lead wire is burnt out.
burnout.
Temperature sensor Temperature sensor lead wire is
Failshort-circuited
short-circuited.
Outside temperature
Error
Measured temperature has exceeded 110.0 .
compensation range
Outside temperature
Error
Measured temperature is less than 0.0 .
compensation range
A12 type
No action• Selects an A12 type.
Note: If A12 type is changed, the A12 value defaults to 0.00 or 0.0.
• For the selection item and action, refer to A11 type. (pp.22, 23)
A21 type
No action• Selects an A21 type.
Note: If A21 type is changed, the A21 value defaults to 0.00 or 0.0.
• For the selection item and action, refer to A11 type. (pp.22, 23)
A22 type
No action• Selects an A22 type.
Note: If A22 type is changed, the A22 value defaults to 0.00 or 0.0.
• For the selection item and action, refer to A11 type. (pp.22, 23)
A11 value
Conductivity input: 0.00 mS/cm, Temperature input: 0.0• Sets an A11 value.
• Not available if(No action),(Error output) or(Fail output)
is selected in [A11 type].
• Setting range:
Conductivity input: Measurement range low limit to Measurement range high limit (*1)
Temperature input: 0.0 to 100.0 (*2)
A12 value
Conductivity input: 0.00 mS/cm, Temperature input: 0.0• Sets an A12 value.
• Indication condition and setting range are the same as those of A11 value. (p.23)
A21 value
Conductivity input: 0.00 mS/cm, Temperature input: 0.0• Sets an A21 value.
• Indication condition and setting range are the same as those of A11 value. (p.23)
A22 value
Conductivity input: 0.00 mS/cm, Temperature input: 0.0• Sets an A22 value.
• Indication condition and setting range are the same as those of A11 value. (p.23)(*1): The measurement unit and decimal point place follow the measurement range.
(*2): The placement of the decimal point does not follow the selection. It is fixed.

23

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) or(Fail output)
is selected in [A11 type].
• Selection item:: 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.
Conductivity input: 0.01 mS/cm
A11 ON side
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.
• Not available if(No action),(Error output) or(Fail output)
is selected in [A11 type].
• Setting range differs depending on the selections of A11 type and measurement range.
(Table 8.2-4)
AType

Conductivity
input

Temperature input

Measurement Range
0.00 to 20.00 mS/cm
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 500 mS/cm
0.000 to 2.000 mS/cm
0.000 to 5.000 mS/cm
0.00 to 50.00 mS/cm
0 to 2000 S/cm
0 to 5000 S/cm
0.000 to 2.000 S/m
Cell
0.00 to 20.00 S/m
constant
0.00 to 50.00 S/m
1.0/cm0.0 to 50.0 S/m
0 to 2000 mS/m
0.000 to 5.000 S/m
0.0 to 200.0 mS/m
0.0 to 500.0 mS/m
0.0 to 20.0 g/L
0 to 200 g/L
0 to 500 g/L
0 to 2000 mg/L
0 to 5000 mg/L
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 2000 mS/cm
0.00 to 20.00 S/m
Cellconstant
0.00 to 50.00 S/m
10.0/cm
0.0 to 200.0 S/m
0 to 200 g/L
0 to 500 g/L
0 to 2000 g/L
Seawater salinity 0.00 to 4.00%
NaCl salinity 0.00 to 20.00%
0.0 to 100.0
24

Setting Range
0.00 to 2.00 mS/cm
0.0 to 20.0 mS/cm
0.0 to 50.0 mS/cm
0 to 50 mS/cm
0.000 to 0.200 mS/cm
0.000 to 0.500 mS/cm
0.00 to 5.00 mS/cm
0 to 200 S/cm
0 to 500 S/cm
0.000 to 0.200 S/m
0.00 to 2.00 S/m
0.00 to 5.00 S/m
0.0 to 5.0 S/m
0 to 200 mS/m
0.000 to 0.500 S/m
0.0 to 20.0 mS/m
0.0 to 50.0 mS/m
0.0 to 2.0 g/L
0 to 20 g/L
0 to 50 g/L
0 to 200 mg/L
0 to 500 mg/L
0.0 to 20.0 mS/cm
0.0 to 50.0 mS/cm
0 to 200 mS/cm
0.00 to 2.00 S/m
0.00 to 5.00 S/m
0.0 to 20.0 S/m
0 to 20 g/L
0 to 50 g/L
0 to 200 g/L
0.00 to 0.40%
0.00 to 2.00%
0.0 to 10.0

Character

Setting Item, Function, Setting Range
A11 OFF side

Factory Default
Conductivity input: 0.01 mS/cm
Temperature input: 1.0• Sets the span of A11 OFF side.
• Not available if(Medium Value) is selected in [A11 hysteresis type].
• Not available if(No action),(Error output) or(Fail output)
is selected in [A11 type].
• Setting range differs depending on the selections of A11 type and measurement range.
See (Table 8.2-4). (p.24)
A12 hysteresis type
Reference Value• Selects A12 hysteresis type (Medium or Reference Value).
• Indication condition and selection item are the same as those of A11 hysteresis type. (p.24)
Conductivity input: 0.01 mS/cm
A12 ON side
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.
• Indication condition and setting range are the same as those of A11 ON side. (p.24)
Conductivity input: 0.01 mS/cm
A12 OFF side
Temperature input: 1.0• Sets the span of A12 OFF side.
• Indication condition and setting range are the same as those of A11 OFF side. (p.25)
A21 hysteresis type
Reference Value• Selects A21 hysteresis type (Medium or Reference Value).
• Indication condition and selection item are the same as those of A11 hysteresis type. (p.24)
Conductivity input: 0.01 mS/cm
A21 ON side
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.
• Indication condition and setting range are the same as those of A11 ON side. (p.24)
Conductivity input: 0.01 mS/cm
A21 OFF side
Temperature input: 1.0• Sets the span of A21 OFF side.
• Indication condition and setting range are the same as those of A11 OFF side. (p.25)
A22 hysteresis type
Reference Value• Selects A22 hysteresis type (Medium or Reference Value).
• Indication condition and selection item are the same as those of A11 hysteresis type. (p.24)
Conductivity input: 0.01 mS/cm
A22 ON side
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.
• Indication condition and setting range are the same as those of A11 ON side. (p.24)
Conductivity input: 0.01 mS/cm
A22 OFF side
Temperature input: 1.0• Sets the span of A22 OFF side.
• Indication condition and setting range are the same as those of A11 OFF side. (p.25)
A11 ON delay time
0 seconds• Sets A11 ON delay time.
The A11 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) or(Fail output)
is selected in [A11 type].
• Setting range: 0 to 9999 seconds
25

Character

Setting Item, Function, Setting Range
Factory Default
A12 ON delay time
0 seconds• Sets A12 ON delay time.
The A12 does not turn ON (under the conditions of turning ON) until the time set in[A12 ON delay time] elapses.
• Indication condition and setting range are the same as those of A11 ON delay time.(p.25)
A21 ON delay time
0 seconds• Sets A21 ON delay time.
The A21 does not turn ON (under the conditions of turning ON) until the time set in[A21 ON delay time] elapses.
• Indication condition and setting range are the same as those of A11 ON delay time.
(p.25)A22 ON delay time
0 seconds• Sets A22 ON delay time.
The A22 does not turn ON (under the conditions of turning ON) until the time set in[A22 ON delay time] elapses.
• Indication condition and setting range are the same as those of A11 ON delay time(p.25)
A11 OFF delay time
0 seconds• Sets A11 OFF delay time.
The A11 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) or(Fail 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 does not turn OFF (under the conditions of turning OFF) until the time set in[A12 OFF delay time] elapses.
• Indication condition and setting range are the same as those of A11 OFF delay time.(p.26)
A21 OFF delay time
0 seconds• Sets A21 OFF delay time.
The A21 does not turn OFF (under the conditions of turning OFF) until the time set in[A21 OFF delay time] elapses.
• Indication condition and setting range are the same as those of A11 OFF delay time.(p.26)
A22 OFF delay time
0 seconds• Sets A22 OFF delay time.
The A22 does not turn OFF (under the conditions of turning OFF) until the time set in[A22 OFF delay time] elapses.
• Indication condition and setting range are the same as those of A11 OFF delay time.(p.26)
A11 High/Low limits independent
Conductivity input: 0.00 mS/cm
lower side span
Temperature input: 0.0• Sets the lower side span of A11 High/Low limits independent action.
Disabled when set to 0.00 or 0.0 .
• Available when
(Conductivity input High/Low limits independent action) or(Temperature input High/Low limits independent action) is selected in [A11 type].
• Setting range:
Conductivity input: Measurement range low limit to Measurement range high limit (*1)
Temperature input: 0.0 to 100.0 (*2)
A12 High/Low limits independent
Conductivity input: 0.00 mS/cm
lower side span
Temperature input: 0.0• Sets the lower side span of A12 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent lower side span]. (p.26)(*1): The measurement unit and decimal point place follow the measurement range.
(*2): The placement of the decimal point does not follow the selection. It is fixed.

26

Character

Setting Item, Function, Setting Range
Factory Default
Conductivity input: 0.00 mS/cm
A21 High/Low limits independent
Temperature input: 0.0
lower side span
• Sets the lower side span of A21 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent lower side span]. (p.26)
Conductivity input: 0.00 mS/cm
A22 High/Low limits independent
Temperature input: 0.0
lower side span
• Sets the lower side span of A22 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent lower side span]. (p.26)
Conductivity input: 0.00 mS/cm
A11 High/Low limits independent
Temperature input: 0.0
upper side span
• Sets the upper side span of A11 High/Low limits independent action.
Disabled when set to 0.00 or 0.0 .
• Available when
(Conductivity input High/Low limits independent action) or(Temperature input High/Low limits independent action) is selected in [A11 type].
• Setting range:
Conductivity input: Measurement range low limit to Measurement range high limit (*1)
Temperature input: 0.0 to 100.0 (*2)
Conductivity input: 0.00 mS/cm
A12 High/Low limits independent
Temperature input: 0.0
upper side span
• Sets the upper side span of A12 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent upper side span]. (p.27)
Conductivity input: 0.00 mS/cm
A21 High/Low limits independent
Temperature input: 0.0
upper side span
• Sets the upper side span of A21 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent upper side span]. (p.27)
Conductivity input: 0.00 mS/cm
A22 High/Low limits independent
Temperature input: 0.0
upper side span
• Sets the upper side span of A22 High/Low limits independent action.
• For the action, indication condition and setting range, refer to [A11 High/Low limits
independent upper side span]. (p.27)(*1): The measurement unit and decimal point place follow the measurement range.
(*2): The placement of the decimal point does not follow the selection. It is fixed.

27

Character

Setting Item, Function, Setting Range
A11 hysteresis

Factory Default
Conductivity input: 0.01 mS/cm
Temperature input: 1.0• Sets hysteresis of A11 High/Low limits independent action.
• Available when
(Conductivity input High/Low limits independent action) or(Temperature input High/Low limits independent action) is selected in [A11 type].
• Setting range differs depending on the selections of A11 type and measurement range.
(Table 8.2-5)
AType
Measurement Range
Setting Range
0.00 to 20.00 mS/cm
0.01 to 2.00 mS/cm
0.0 to 200.0 mS/cm
0.1 to 20.0 mS/cm
0.0 to 500.0 mS/cm
0.1 to 50.0 mS/cm
0 to 500 mS/cm
1 to 50 mS/cm
0.000 to 2.000 mS/cm
0.001 to 0.200 mS/cm
0.000 to 5.000 mS/cm
0.001 to 0.500 mS/cm
0.00 to 50.00 mS/cm
0.01 to 5.00 mS/cm
0 to 2000 S/cm
1 to 200 S/cm
0 to 5000 S/cm
1 to 500 S/cm
0.000 to 2.000 S/m
0.001 to 0.200 S/m
Cell
0.00 to 20.00 S/m
0.01 to 2.00 S/m
constant
0.00 to 50.00 S/m
0.01 to 5.00 S/m
1.0/cm0.0 to 50.0 S/m
0.1 to 5.0 S/m
0 to 2000 mS/m
1 to 200 mS/m
0.000 to 5.000 S/m
0.001 to 0.500 S/m
0.0 to 200.0 mS/m
0.1 to 20.0 mS/m
Conductivity
0.0 to 500.0 mS/m
0.1 to 50.0 mS/m
input
0.0 to 20.0 g/L
0.1 to 2.0 g/L
0 to 200 g/L
1 to 20 g/L
0 to 500 g/L
1 to 50 g/L
0 to 2000 mg/L
1 to 200 mg/L
0 to 5000 mg/L
1 to 500 mg/L
0.0 to 200.0 mS/cm
0.1 to 20.0 mS/cm
0.0 to 500.0 mS/cm
0.1 to 50.0 mS/cm
0 to 2000 mS/cm
1 to 200 mS/cm
0.00 to 20.00 S/m
0.01 to 2.00 S/m
Cellconstant
0.00 to 50.00 S/m
0.01 to 5.00 S/m
10.0/cm
0.0 to 200.0 S/m
0.1 to 20.0 S/m
0 to 200 g/L
1 to 20 g/L
0 to 500 g/L
1 to 50 g/L
0 to 2000 g/L
1 to 200 g/L
Seawater salinity 0.00 to 4.00%
0.01 to 0.40%
NaCl salinity 0.00 to 20.00%
0.01 to 2.00%
Temperature
0.0 to 100.0
0.1 to 10.0
input
A12 hysteresis

Conductivity input: 0.01 mS/cm
Temperature input: 1.0• Sets hysteresis of A12 High/Low limits independent action.
• For the indication condition and setting range, refer to [A11 hysteresis]. (p.28)
A21 hysteresis
Conductivity input: 0.01 mS/cm
Temperature input: 1.0• Sets hysteresis of A21 High/Low limits independent action.
• For the indication condition and setting range, refer to [A11 hysteresis]. (p.28)

28

Character

Setting Item, Function, Setting Range
A22 hysteresis

Factory Default
Conductivity input: 0.01 mS/cm
Temperature input: 1.0• Sets hysteresis of A22 High/Low limits independent action.
• For the indication condition and setting range, refer to [A11 hysteresis]. (p.28)
A
output when input errors occur
Disabled• Selects whether to enable or disable A
output in the event of an input error such as aconductivity sensor burnout or short circuit.
If Enabled is selected, A
output and A
output status will be maintained in theevent of an input error.
If Disabled is selected, A
output and A
output status will be turned OFF in theevent of an input error.
• Available when
(Conductivity input low limit action),(Conductivity input
high limit action),(Temperature input low limit action) or(Temperature
input high limit action) is selected in [Atype].
• Selection item:: Enabled: Disabled
Conductivity input filter time constant
0.0 seconds• Sets Conductivity 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 10.0 seconds
Conductivity input sensor correction
0.00 mS/cm• Sets conductivity input sensor correction value.
This corrects the measured value from the Conductivity Sensor. When a sensor cannot
be set at the exact location where measurement is desired, the sensor-measured
conductivity may deviate from the conductivity in the measured location. In such a case,desired conductivity can be obtained by adding a sensor correction value.
However, it is effective within the measurement range regardless of the sensor correction
value.
Conductivity after sensor correction = Current conductivity + (Sensor correction value)• Setting range: 10% of measurement span (*)
3-electrode Conductivity Sensor resistance0• If the 3-electrode Conductivity Sensor is used, set the resistance value of 3-electrodeConductivity Sensor.
• Setting range: 0 to 100
Conductivity inputs for moving average
20• Set the number of conductivity inputs used to obtain moving average.
An average conductivity input value is calculated using the selected number ofconductivity inputs. The conductivity input value is replaced every input sampling period.
However, the conductivity input moving average function is disabled in conductivity
calibration mode or in temperature calibration mode.
• Setting range: 1 to 120(*):

The measurement unit and decimal point place follow the measurement range.

298.3 Temperature Input GroupTo enter the Temperature Input Group, follow the procedure below.
1
Press thekey twice in Conductivity/Temperature Display Mode.
2
Press thekey.
The unit will enter Temperature Input Group, and “Temperature compensation method” will appear.
Character
Setting Item, Function, Setting Range
Factory Default
Temperature compensation method(*1)
NaCl• Selects Temperature compensation calculation method.
•: Temperature compensation is conducted using temperature characteristics of
NaCl. Select when the main salt ingredient in a sample is NaCl.
: Temperature compensation is conducted using temperature coefficient (%/ )and a randomly selected reference temperature.
: No temperature compensation
Temperature coefficient(*1), (*2)
2.00 %/• Sets the temperature coefficient.
If temperature coefficient is set to 2.00 %/ , this value can be used for most aqueous
solutions.
If temperature coefficient of an aqueous solution is already-known, set the value.
If temperature coefficient is set to 0.00 %/ , conductivity without temperaturecompensation will be indicated.
• Setting range: -5.00 to 5.00 %/Reference temperature(*1)
25.0• Sets the reference temperature for temperature compensation.
• Setting range: 5.0 to 95.0 (*3)
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 of Pt100.
• Not available for the Temperature element Pt1000.
This setting item and all subsequent items are available only when
(Measuredvalue) is selected in [Temperature Display when no temperature compensation].
•: 2-wire type
: 3-wire type
Cable length correction
0.0 m• Sets the cable length correction value.
• Available only when
(2-wire type) is selected in [Pt100 input wire type].
Not available for the Temperature element Pt1000.
• Setting range: 0.0 to 100.0 m
Cable cross-section area
0.30 mm2• Sets the cable cross-section area.
• Available only when
(2-wire type) is selected in [Pt100 input wire type].
Not available for the Temperature element Pt1000.
• Setting range: 0.10 to 2.00 mm2Temperature input filter time constant
0.0 seconds• Sets Temperature 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 10.0 seconds(*1): Not available if(Seawater salinity) or(NaCl salinity) is selected in [Measurement unit(P.21)].
(*2): Available only whenis selected in [Temperature compensation method].
(*3): The placement of the decimal point follows the selection.

30

Character

Setting Item, Function, Setting Range
Factory Default
Temperature inputs for moving average
20• Set the number of temperature inputs used to obtain 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 in temperature
calibration mode.
• Setting range: 1 to 120

8.4 Basic Function GroupTo enter the Basic Function Group, follow the procedure below.
1
Press thekey 3 times in Conductivity/Temperature Display Mode.
2
Press thekey.
The unit will enter the Basic Function Group, and “Set value lock” will appear.
Character
Setting Item, Function, Setting Range
Factory Default
Set value lock
Unlock• Locks the set values to prevent setting errors.
• Selection item:(Unlock): All set values can be changed.
(Lock 1): None of the set values can be changed.
(Lock 2): Only A11, A12, A21 and A22 values can be changed.
(Lock 3): All set values – except Sensor cell constant, Measurement unit,
Measurement range, Conductivity Zero and Span adjustment values,
Temperature calibration value, Transmission output 1 Zero and Spanadjustment values, Transmission output 2 Zero and Span adjustment
values – can be temporarily changed. However, they revert to theirprevious value after the power is turned off because they are notsaved in the non-volatile IC memory.
Do not change the A11, A12, A21 or A22 type. If they are changed,
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 communication is
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.
• Selection item:: Shinko protocol: MODBUS ASCII mode
: MODBUS RTU mode
Instrument number0• Sets the instrument number of each unit. (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.
• Selection item:: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity
7 bits/Even• Selects data bit and parity.
• Selection item:: 8 bits/No parity: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd
31

Character

Setting Item, Function, Setting Range
Stop bit• Selects the stop bit.
• Selection item:

Factory Default
1 bit: 1 bit: 2 bits
Transmission output 1 type
Conductivity transmission• Selects Transmission output 1 type.
If(No temperature compensation) is selected in [Temperature compensation
method (p.30)], and if(Temperature transmission) is selected, then transmission
output 1 value will differ depending on the selection in [Temperature Display when notemperature compensation (p.34)] as follows.
If(Unlit) or(Reference temperature) is selected, the value set in[Reference temperature (p.30)] will be output.
If(Measured value) is selected, the measured value will be output.
• Available when Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Selection item:: Conductivity transmission: Temperature transmission
Transmission output 1 high limit
20.00 mS/cm• Sets 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:
If(Conductivity transmission) is selected in [Transmission output 1 type]:
Transmission output 1 low limit to Conductivity range high limit
If(Temperature transmission) is selected in [Transmission output 1 type]:
Transmission output 1 low limit to 100.0
Transmission output 1 low limit
0.00 mS/cm• Sets 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:
If(Conductivity transmission) is selected in [Transmission output 1 type]:
Conductivity range low limit to Transmission output 1 high limit
If(Temperature transmission) is selected in [Transmission output 1 type]:
0.0 to Transmission output 1 high limit
Transmission output 2 type
Temperature transmission• Selects Transmission output 2 type.
If(No temperature compensation) is selected in [Temperature compensation
method (p.30)], and if(Temperature transmission) is selected, then Transmission
output 2 value will differ depending on the selection in [Temperature Display when notemperature compensation (p.34)] as follows.
If(Unlit) or(Reference temperature) is selected, the value set in[Reference temperature (p.30)] will be output.
If(Measured value) is selected, the measured value will be output.
• Available only when Transmission output 2 (TA2 option) is ordered.
• Selection item:: Conductivity transmission: Temperature transmission
32

Character

Setting Item, Function, Setting Range
Factory Default
Transmission output 2 high limit
100.0• Sets 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:
If(Conductivity transmission) is selected in [Transmission output 2 type]:
Transmission output 2 low limit to Conductivity range high limit
If(Temperature transmission) is selected in [Transmission output 2 type]:
Transmission output 2 low limit to 100.0
Transmission output 2 low limit
0.0• Sets 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:
If(Conductivity transmission) is selected in [Transmission output 2 type]:
Conductivity range low limit to Transmission output 2 high limit
If(Temperature transmission) is selected in [Transmission output 2 type]:
0.0 to Transmission output 2 high limit
Transmission output 1 status when calibrating
Last value HOLD
• Selects Transmission output 1 output status when calibrating conductivity.
• 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 conductivity calibration, andoutputs it.): Set value HOLD (Outputs the value set in [Transmission output 1 value HOLD
when calibrating].): Measured value (Outputs the measured value when calibrating conductivity.)
Conductivity transmission: 0.00 mS/cm
Transmission output 1 value HOLD when
Temperature transmission: 0.0
calibrating• Sets Transmission output 1 value HOLD.
• Available only when(Set value HOLD) is selected in [Transmission output 1
status when calibrating].
• Setting range:
When(Conductivity transmission) is selected in [Transmission output 1 type]:
Conductivity range low limit to Conductivity range high limit
When(Temperature transmission) is selected in [Transmission output 1 type]:
0.0 to 100.0
Transmission output 2 status when calibrating
Last value HOLD
• Selects Transmission output 2 output status when calibrating conductivity.
• Available only when Transmission output 2 (TA2 option) is ordered.
• Selection item:: Last value HOLD (Retains the last value before conductivity calibration, andoutputs it.): Set value HOLD (Outputs the value set in [Transmission output 2 value HOLD
when calibrating].): Measured value (Outputs the measured value when calibrating conductivity.)

33

Character

Setting Item, Function, Setting Range
Factory Default
Conductivity transmission: 0.00 mS/cm
Transmission output 2 value HOLD when
Temperature transmission: 0.0
calibrating• Sets Transmission output 2 value HOLD.
• Available only when(Set value HOLD) is selected in [Transmission output 2
status when calibrating].
• Setting range:
When(Conductivity transmission) is selected in [Transmission output 2 type]:
Conductivity range low limit to Conductivity range high limit
When(Temperature transmission) is selected in [Transmission output 2 type]:
0.0 to 100.0
Auto-light function
Disabled• Selects Auto-light Enabled/Disabled.
• Selection item:: Disabled: Enabled
Display selection
Conductivity/Temperature• Selects items to be indicated on the Conductivity Display and Temperature Display.
• Selection item:
Conductivity Display
Temperature Display
Conductivity
Temperature
Conductivity
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 go off.
Displays remain lit when set to 00.00.
If any errors occur or any key is pressed while in unlit status, the display will light up.
• 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• Selects an item to be indicated on the Temperature Display when(No
temperature compensation) is selected in [Temperature compensation method].
The placement of the decimal point for the reference temperature follows the selection.
• Available only when
(No temperature compensation) is selected in [Temperaturecompensation method].
• Selection item:: Unlit: Reference temperature: Measured value

34

Character

Setting Item, Function, Setting Range
Factory Default
A1 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.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Selection item:: 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.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Selection items are the same as those of A1 output allocation. (p.35)
Output ON time when A1 output ON
0 seconds• Sets 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

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

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

OFF
time

ON
time

(Fig. 8.4-1)

35

OFF
time

ON
time

Character

Setting Item, Function, Setting Range
Factory Default
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) (p.35)• 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) (p.35)• 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) (p.35)• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Setting range: 0 to 9999 seconds
A1 conductivity input error alarm A
type
No action• Selects an A
type in order to assess A1 conductivity 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 conductivity input error alarm A
type
No action• Selects A
type in order to assess A2 conductivity input error alarm.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Selection item
: No action: A11 type
: A12 type
: A21 type
: A22 type

36

Character

Setting Item, Function, Setting Range
Factory Default
A1 conductivity input error alarm band
0.00 mS/cm
when Aoutput ON• Sets the band to assess A1 conductivity input error alarm when A
output is ON.
Refer to ‘Conductivity Input Error Alarm’ on p.38.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range:
Conductivity range low limit to Conductivity range high limit
When set to 0.0 or 0.00, Conductivity input error alarm is disabled.
A1 conductivity input error alarm time
0 seconds
when Aoutput ON• Sets time to assess A1 conductivity input error alarm when A
output is ON.
Refer to ‘Conductivity Input Error Alarm’ on p.38.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range:
0 to 9999 seconds or minutes (Time unit follows the selection in [Conductivity input
error alarm time unit].)
When set to 0, Conductivity input error alarm is disabled.
A1 conductivity input error alarm band
0.00 mS/cm
when Aoutput OFF• Sets the band to assess A1 conductivity input error alarm when A
output is OFF.
Refer to ‘Conductivity Input Error Alarm’ on p.38.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range:
Conductivity range low limit to Conductivity range high limit
When set to 0.0 or 0.00, Conductivity input error alarm is disabled.
A1 conductivity input error alarm time
0 seconds
when Aoutput OFF• Sets time to assess A1 conductivity input error alarm when A
output is OFF.
Refer to ‘Conductivity Input Error Alarm’ on p.38.
• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range:
0 to 9999 seconds or minutes (Time unit follows the selection in [Conductivity input
error alarm time unit].)
When set to 0, Conductivity input error alarm is disabled.
A2 conductivity input error alarm band
0.00 mS/cm
when Aoutput ON• Sets the band to assess A2 conductivity input error alarm when A
output is ON.
Refer to ‘Conductivity Input Error Alarm’ on p.38.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Setting range:
Conductivity range low limit to Conductivity range high limit
When set to 0.0 or 0.00, Conductivity input error alarm is disabled.

37

Character

Setting Item, Function, Setting Range
Factory Default
A2 conductivity input error alarm time
0 seconds
when Aoutput ON• Sets time to assess A2 conductivity input error alarm when A
output is ON.
Refer to ‘Conductivity Input Error Alarm’ on p.38.
• 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 [Conductivity input
error alarm time unit].)
When set to 0, Conductivity input error alarm is disabled.
A2 conductivity input error alarm band
0.00 mS/cm
when Aoutput OFF• Sets the band to assess A2 conductivity input error alarm when A
output is OFF.
Refer to ‘Conductivity Input Error Alarm’ on p.38.
• Not available if Transmission output 1 (TA option) or Transmission output 2 (TA2 option)is ordered.
• Setting range:
Conductivity range low limit to Conductivity range high limit
When set to 0.0 or 0.00, Conductivity input error alarm is disabled.
A2 conductivity input error alarm time
0 seconds
when Aoutput OFF• Sets time to assess A2 conductivity input error alarm when A
output is OFF.
Refer to ‘Conductivity Input Error Alarm’ on p.38.
• 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 [Conductivity input
error alarm time unit].)
When set to 0, Conductivity input error alarm is disabled.
Conductivity input error alarm time unit
Second(s)• Selects conductivity input error alarm time unit.
• Selection item:: Second(s): Minute(s)• Conductivity Input Error Alarm
Conductivity input error alarm is used for detecting actuator trouble.
Even if Conductivity input error alarm time has elapsed – if conductivity input does not become higher
than conductivity input error alarm band – the instrument assumes that actuator trouble has occurred,and sets Status flag 2.
In Serial communication, status can be read by reading Status flag 2 (A1, A2 conductivity input error
alarm output flag bit).
Conductivity input error alarm is disabled during Conductivity Zero or Span adjustment.
Conductivity input error alarm is enabled only when
(Conductivity input low limit action) or(Conductivity input high limit action) is selected in [A11, A12, A21, A22 type (pp.22, 23)].

38

9. Calibration
Conductivity calibration mode, Temperature calibration mode, and Transmission output 1 and 2
adjustment modes are described below.
9.1 Conductivity Calibration Mode
Deterioration of the 4-electrode Conductivity Sensor might cause the cell constant to change.
To correct the changed cell constant, conductivity calibration must be performed.
Calibrate Conductivity Zero adjustment first, followed by Conductivity Span adjustment.
During conductivity calibration, A
action is forced OFF.
However, if(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock(p.31)], the unit cannot move to Conductivity calibration mode.
The following outlines the procedure for conductivity calibration.
1

When selecting(Last value HOLD) in [Transmission output 1 status when calibrating(p.33)] or [Transmission output 2 status when calibrating (p.33)], select it while the 4-electrodeConductivity Sensor is being immersed in the solution currently measured.

2

Do not immerse the 4-electrode Conductivity Sensor in the standard solution.

3

Press and hold the
key andkey (in that order) together for 3 seconds in Conductivity/
Temperature Display Mode.
The unit enters Conductivity calibration Zero adjustment mode, and indicates the following.
Display
Indicationand conductivity are indicated alternately.
Conductivity Display
Conductivity Zero adjustment value
Temperature Display

4

Set the Conductivity Zero adjustment value with theor
key so that the conductivity becomes 0.
If conductivity is 0, this adjustment is not necessary.
Setting range of the Conductivity Zero adjustment value differs depending on the measurement
range. See (Table 9.1-1.). (p. 40)
However, it is effective within the measurement range regardless of the Conductivity Zero adjustment
value.

39

(Table 9.1-1)
Measurement Range
0.00 to 20.00 mS/cm
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 500 mS/cm
0.000 to 2.000 mS/cm
0.000 to 5.000 mS/cm
0.00 to 50.00 mS/cm
0 to 2000 S/cm
0 to 5000 S/cm
0.000 to 2.000 S/m
Cell
0.00 to 20.00 S/m
constant
0.00 to 50.00 S/m
1.0/cm0.0 to 50.0 S/m
0 to 2000 mS/m
0.000 to 5.000 S/m
0.0 to 200.0 mS/m
0.0 to 500.0 mS/m
0.0 to 20.0 g/L
0 to 200 g/L
0 to 500 g/L
0 to 2000 mg/L
0 to 5000 mg/L
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 2000 mS/cm
0.00 to 20.00 S/m
Cellconstant
0.00 to 50.00 S/m
10.0/cm
0.0 to 200.0 S/m
0 to 200 g/L
0 to 500 g/L
0 to 2000 g/L
Seawater salinity 0.00 to 4.00%
NaCl salinity 0.00 to 20.00%
5

Press theConductivity Zero Adjustment Value
Setting Range-2.00 to 2.00 mS/cm-20.0 to 20.0 mS/cm-50.0 to 50.0 mS/cm-50 to 50 mS/cm-0.200 to 0.200 mS/cm-0.500 to 0.500 mS/cm-5.00 to 5.00 mS/cm-200 to 200 S/cm
-500 to 500 S/cm
-0.200 to 0.200 S/m-2.00 to 2.00 S/m-5.00 to 5.00 S/m-5.0 to 5.0 S/m-200 to 200 mS/m
-0.500 to 0.500 S/m-20.0 to 20.0 mS/m
-50.0 to 50.0 mS/m
-2.0 to 2.0 g/L-20 to 20 g/L-50 to 50 g/L-200 to 200 mg/L
-500 to 500 mg/L
-20.0 to 20.0 mS/cm-50.0 to 50.0 mS/cm-200 to 200 mS/cm-2.00 to 2.00 S/m-5.00 to 5.00 S/m-20.0 to 20.0 S/m-20 to 20 g/L-50 to 50 g/L-200 to 200 g/L-0.40 to 0.40%-2.00 to 2.00%

key.

Conductivity Zero adjustment value will be registered, and the unit will move to Conductivity
calibration Span adjustment mode.
The following is indicated in Conductivity calibration Span adjustment mode.
Display
Indicationand conductivity are indicated alternately.
Conductivity Display
Conductivity Span adjustment value
Temperature Display
6

Immerse the 4-electrode Conductivity Sensor in the standard solution.

7

Set the Conductivity Span adjustment value with theorkey, checking the conductivity.
Conductivity multiplied by the Span adjustment value is displayed.
Conductivity Span adjustment value: 0.700 to 1.300

8

Press thekey.
Conductivity Span adjustment value will be registered, and the unit will revert to Conductivity/
Temperature Display Mode.
40

9.2 Temperature Calibration ModeTo calibrate a temperature, set a temperature calibration value.
If(No temperature compensation) is selected in [Temperature compensation method (p.30)],
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.31)].
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,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 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 Conductivity/
Temperature Display Mode.
The unit proceeds to Temperature calibration mode, and indicates the following.
Display
Indicationand temperature are indicated alternately.
Conductivity Display
Temperature calibration value
Temperature Display

2

Set a temperature calibration value with the
Setting range: -10.0 to 10.0

3

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

or

41

key, checking temperature.

9.3 Transmission Output 1 Adjustment Mode
Fine adjustment of Transmission output 1 is performed.
WIL-102-ECH is adjusted at the factory, however, differences may occur between the indication valueof the connected equipment (recorders, etc.) and output value of this instrument.
In this case, perform Transmission output 1 Zero and Span adjustments.
Transmission output 1 adjustment mode is available when 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 Conductivity Zero or Span adjustment, or temperature calibration• When(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock (p.31)]
The following outlines the procedure for Transmission output 1 adjustment.
1

Press and hold the
key andkey (in that order) together for 3 seconds in
Conductivity/Temperature Display Mode.
The unit enters Transmission output 1 Zero adjustment mode, and indicates the following.
Display
Indication
Conductivity Display
Temperature Display

Transmission output 1 Zero adjustment value

2

Set a Transmission output 1 Zero adjustment value with thevalue 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
Indicationorkey, while viewing the

Conductivity Display
Temperature Display

Transmission output 1 Span adjustment value

4

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

5

Press thekey.
The unit reverts to 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 Spanadjustment mode.
The unit reverts to Conductivity/Temperature Display Mode.

42orkey, while viewing the9.4 Transmission Output 2 Adjustment Mode
Fine adjustment of Transmission output 2 is performed.
WIL-102-ECH is adjusted at the factory, however, differences may occur between the indication valueof the connected equipment (recorders, etc.) and output value of this instrument.
In this case, perform Transmission output 2 Zero and Span adjustments.
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 Conductivity Zero or Span adjustment, or temperature calibration• When(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock (p.31)]
The following outlines the procedure for Transmission output 2 adjustment.
1

Press and hold the
key andkey (in that order) together for 3 seconds in
Conductivity/Temperature Display Mode.
The unit enters Transmission output 2 Zero adjustment mode, and indicates the following.
Display
Indication
Conductivity Display
Temperature Display

Transmission output 2 Zero adjustment value

2

Set a Transmission output 2 Zero adjustment value with thevalue 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
Indicationorkey, while viewing the

Conductivity Display
Temperature Display

Transmission output 2 Span adjustment value

4

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

5

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

6

To finish Transmission output 2 adjustment, press the
key in Transmission output 2 Spanadjustment mode.
The unit reverts to Conductivity/Temperature Display Mode.

43orkey, while viewing the10. Measurement
10.1 Starting Measurement
After mounting to the control panel, wiring, setup and calibration are complete, turn the power to the
instrument ON.
For approximately 4 seconds after the power is switched ON, the input characters are indicated on
the Conductivity Display and Temperature Display. See (Table 10.1-1).
(Table 10.1-1)
Display
Character
Measurement Unit
Conductivity Display
Conductivity (mS/cm, S/cm)
Conductivity (S/m, mS/m)
Seawater salinity (%)
NaCl salinity (%)
TDS conversion (g/L, mg/L)
Input Temperature
Selection Item in
Display
CharacterSpecification (*)[Pt100 Input Wire Type] (p.30)
Temperature Display: 2-wire type
Pt100
: 3-wire type
Pt1000(*) This input temperature specification was specified at the time of ordering.
During this time, all outputs are in OFF status, and the LED indicators except PWR Indicator are unlit.
Measurement will then start, indicating the item selected in [Display selection (p.34)].
10.2 A
OutputWhen(Conductivity input low limit action),(Conductivity input high limit action),(Temperature input low limit action), or(Temperature input high limit action) is
selected in [A11, A12, A21, A22 type (pp. 22, 23)], the A
output is turned ON if the measured value
exceeds or drops below the A
value.
When(Conductivity input High/Low limits independent action),(Temperature input
High/Low limits independent action) is selected in [A11, A12, A21, A22 type (pp. 22, 23)], the A
output is turned ON if the measured value exceeds the A
High/Low limits independent action
upper side span, or drops below the lower side span.
A1 or A2 output is turned ON depending on the selection in [A1/A2 output allocation (p.35)] and in[Output ON time/OFF time when A1/A2 output is ON (pp. 35, 36)].
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

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
time

ON
time

OFF
time

ON
time

(Fig. 10.2-1)
A
output status can be read by reading Status flag 1 (A11, A12, A21, A22 output flag bit) in Serial
communication.
A
output status, when input errors occur, differs depending on the selection in [Aoutputwhen input errors occur (p.29)].
• If(Disabled) is selected, A
output and A
output status will be turned OFF when input
errors occur.
• If(Enabled) is selected, A
output and A
output status will be maintained when input
errors occur.
44

10.3 Conductivity Input Error Alarm
Conductivity input error alarm is used for detecting actuator trouble.
Even if conductivity input error alarm time (pp. 37, 38) has elapsed, and if conductivity input does not
become higher than conductivity input error alarm band (pp. 37, 38), the unit assumes that actuator
trouble has occurred, and writes Status flag 2.
In Serial communication, status can be read by reading Status flag 2 (A1, A2 conductivity input error
alarm output flag bit).
Conductivity input error alarm is disabled during Conductivity Zero or Span adjustment.
Conductivity input error alarm is enabled only when
(Conductivity input low limit action) or(Conductivity input high limit action) is selected in [A11, A12, A21, A22 type (pp.22, 23)].
10.4 Error Output
If(Error output) is selected in [A11, A12, A21, A22 type (pp. 22, 23)], the A1 or A2 output will
be turned ON when error type is “Error”. See (Table 10.6-1).
10.5 Fail Output
If(Fail output) is selected in [A11, A12, A21, A22 type (pp. 22, 23)], the A1 or A2 output will beturned ON when error type is “Fail”. See (Table 10.6-1).
10.6 Error Code during Measurement
For Temperature sensor error or outside temperature compensation range during measurement, theircorresponding error codes flash on the Temperature Display as shown below in (Table 10.6-1).
(Table 10.6-1)
Error
Error
Code
Type
Fail
Fail
Error
Error

Error Contents
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 is
When
short-circuited.
measuring
Measured temperature has exceeded 110.0 . orcalibrating
Measured temperature is less than 0.0 .

10.7 Transmission Output 1 and 2
Converting conductivity or temperature to analog signal every input sampling period, outputs incurrent. (Factory default: Transmission output 1: Conductivity, Transmission output 2: Temperature)
If(No temperature compensation) is selected in [Temperature compensation method (p.30)],and if(Temperature transmission) is selected in [Transmission output 1 or 2 type (p.32)],
Transmission output 1 or 2 value differs depending on the selection in [Temperature Display when notemperature compensation (p.34)].
• If(Unlit) or(Reference temperature) is selected, the value set in [Reference
temperature (p.30)] will be output.
• If(Measured value) is selected, the measured value 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 or 2 span45

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

WIL-102-ECH
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) No. 0

RS-232C

RS-485(Fig. 11.1-2)

46

WIL-102-ECH
No. 1 No. 2

No. 3011.2 Setting Method of the Conductivity 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 Conductivity/Temperature Display Mode.
Press thekey twice. “Communication protocol” will appear.
3 Set each item. (Use theor
key for settings, and register the selection/value with the
key.)Character
Setting Item, Function, Setting Range
Factory Default
Communication protocol
Shinko protocol• Selects communication protocol.
• Selection item:: 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
Communication speed
9600 bps• Selects a communication speed equal to that of the host computer.
• Selection item:: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity
7 bits/Even• Selects data bit and parity.
• Selection item:: 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.
• Selection item:: 1 bit: 2 bits
2

4

Press thekey multiple times.
The unit reverts to Conductivity/Temperature Display Mode.

47

11.3 Communication Procedure
Communication starts with command transmission from the host computer (hereafter Master) andends with the response of the WIL-102-ECH (hereafter Slave).
MasterSlaveCommand
Data
Command
Acknowledgement

Command
Negative Acknowledgement

Command
No response(Fig. 11.3-1)• Response with Data
When the master sends the reading command, the slave
responds with the corresponding set value or current status.
• Acknowledgement
When the master sends the setting command, the slave
responds by sending acknowledgement after the processing
is terminated.
• Negative Acknowledgement
When the master sends a non-existent command or value
out of the setting range, the slave returns a negative
acknowledgement.
• No Response
The slave will not respond to the master in the following cases:• Global address (Shinko protocol) is set.
• Broadcast address (MODBUS protocol) is set.
• Communication error (framing error, parity error)• Checksum error (Shinko protocol), LRC discrepancy (MODBUSASCII 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 characters before
sending the command 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-character transmission period after sending the response.

48

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 number of characters.
(1) Setting Command
Sub
HeaderCommand
Data
Address
address
Data
Checksum(02H)
type (50H)
item
(20H)
1
1
1
1
4
4
2
(Fig. 11.4.2-1)

Delimiter(03H)
1(2) Reading Command
Sub
Commandaddresstype (20H)
(20H)
1
1
(Fig. 11.4.2-2)

Header(02H)

Address

Data
item

Checksum

Delimiter
(03H)

1

1

4

2

1

(3) Response with Data
Sub
Commandaddresstype (20H)
(20H)
1
1
(Fig. 11.4.2-3)

Header(06H)

Address

Data
item

Data

Checksum

Delimiter
(03H)

1

1

4

4

2

1

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

Delimiter(03H)1(5) Negative Acknowledgement
Header
Error
Delimiter
Address
Checksum
(15H)
code
(03H)
1
1
1
2
1
(Fig. 11.4.2-5)
Header: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 numbers 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).
49

Data Item:Classification of the command object.
Composed of 4-digit hexadecimal numbers, using ASCII.
(Refer to “11.6. Communication Command Table”.) (pp.55 to 63)
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.55 to 63)
Checksum:
2-character data to detect communication errors.
(Refer to “11.4.3 Checksum Calculation”.) (p.50)
Delimiter:Control code to represent the end of command.
ASCII code ETX (03H) fixedError Code:
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. During calibration mode)
5 (35H)-----During setting mode by keypad operation
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 fromthe slaves so that communication errors can be checked.
The ASCII code (hexadecimal) corresponding to the characters which range from the address tothat 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
A11 value: 1.00 (0064H)
Address (instrument number) : 0 (20H)
Checksum calculation range[e.g.]
P

STX

0

0

0

6

0

0

6

4

30H

30H

36H

34H

E

0

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
36H
0011 0110
30H
0011 0000
30H
0011 0000
36H
0011 0110
0011 0100+ 34H
10 0010 0000

30H

36H

45H 30H

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

1101 1111
11110 0000[Hexadecimal]

E

0[ASCII]

45H

30H

Checksum(Fig. 11.4.3-1)
50

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-ECH
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
3.5 Idle
Slave
FunctionError Check
Data
Characters Address
Characters
Code
CRC-16(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.
51

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.
(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 CodeContents
1 (01H)
Illegal function (Non-existent function)
2 (02H)
Illegal data address (Non-existent data address)
3 (03H)
Illegal data value (Value out of the setting range)
Shinko protocol error code 4 [Status unable to be set (e.g.) During
17 (11H)
calibration mode]
18 (12H)
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 ofdata, the calculated 8-bit data is converted to two ASCII characters, and are appended to the endof 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.

52

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 is added
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.
4 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 5 .
5 Repeat steps 3 and 4 until shifting 8 times.
6 XOR is calculated with the next data and X. This is assumed as X.
7 Repeat steps 3 to 5 .
8 Repeat steps 3 to 5 up to the final data.
9 Set X as CRC-16 to the end of message in sequence from low order to high order.
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 (Conductivity)]• 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 [1.00 mS/cm (0064H)]
The response byte count means the byte count of the data which has been read.
It is fixed as (30H 32H).
Header
(3AH)
1

Slave
Address(30H 31H)
2

Function
Code(30H 33H)
2

Data
Error Check
Response Byte Count[0064H][02H]
LRC(30H 32H)(30H 30H 36H 34H) (39H 36H)
2
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 0006H (A11 value)]• A request message from the master [When A11 value is set to 1.00 (0064H)]
Header
(3AH)
1

Slave
Address(30H 31H)
2

Function
Code(30H 36H)
2

Data Item[0006H](30H 30H 30H 36H)
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[0006H](30H 30H 30H 36H)
4

53

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

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 (Conductivity)]• 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

Amount ofData(0001H)
2(0080H)
2

Error Check
CRC-16(85E2H)2

3.5 Idle
Characters• Response message from the slave in normal status [1.00 mS/cm (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)
1

Response
Byte Count
(02H)
1

Data
(0064H)
2

Error Check
CRC-16(B9AFH)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 0006H (A11 value)]• A request message from the master [When A11 value is set to 1.00 (0064H)]
Slave
3.5 Idle
Address
Characters(01H)
1

Function
Code
(06H)
1

Data Item

Data(0006H)
2(0064H)
2

Error Check
CRC-16(6820H)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(0006H)
2(0064H)
2

Error Check
CRC-16(6820H)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

54

Error Check
CRC-16(0261H)2

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 item 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 (Sensor cell constant) 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 and 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 number of settings exceeds the limit, the data will not be saved. So, ensure the set values
are not frequently changed 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.)• Be sure to select Lock 3 when changing the set value frequently via software communication.
If Lock 3 is selected, all set values – except Sensor cell constant, Measurement unit,
Measurement range, Conductivity Zero and Span adjustment values, Temperature calibration
value, Transmission output 1 Zero and Span adjustment values, Transmission output 2 Zero andSpan adjustment values – 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 and A22 types). If they are changed, they will affectother setting 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 item 0005H (A11 type), 0050H (A12 type), 0051H(A21 type) or 052H (A22 type), the A11, A12, A21 or A22 value will default to 0.00 or 0.0.
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 slavecannot be set by software communication. They can only be set via the keypad. (p.47)• 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.

55

11.6.2 Setting/Reading Command
ShinkoMODBUS
Command Function
Data ItemType
Code
50H/20H
06H/03H 0001H Sensor cell constant
50H/20H

06H/03H

0002H

50H/20H

06H/03H

0003H

Cell constant correction
value
Measurement unit

50H/20H

06H/03H

0004H

Measurement range

Data
0000H: 1.0/cm
0001H: 10.0/cm
Set value
0000H: Conductivity (mS/cm, S/cm)
0001H: Conductivity (S/m, mS/m)
0002H: Seawater salinity (%)
0003H: NaCl salinity (%)
0004H: TDS conversion (g/L, mg/L)
When 1.0/cm is selected in [Sensor
cell constant], and Conductivity(mS/cm, S/cm) in [Measurement unit]:
0000H: 0.00 to 20.00 mS/cm
0001H: 0.0 to 200.0 mS/cm
0002H: 0.0 to 500.0 mS/cm
0003H: 0 to 500 mS/cm
0004H: 0.000 to 2.000 mS/cm
0005H: 0.000 to 5.000 mS/cm
0006H: 0.00 to 50.00 mS/cm
0007H: 0 to 2000 S/cm
0008H: 0 to 5000 S/cm
When 1.0/cm is selected in [Sensor
cell constant], and Conductivity(S/m, mS/m) in [Measurement unit]:
0000H: 0.000 to 2.000 S/m
0001H: 0.00 to 20.00 S/m
0002H: 0.00 to 50.00 S/m
0003H: 0.0 to 50.0 S/m
0004H: 0 to 2000 mS/m
0005H: 0.000 to 5.000 S/m
0006H: 0.0 to 200.0 mS/m
0007H: 0.0 to 500.0 mS/m
When 1.0/cm is selected in [Sensor
cell constant], and TDS conversion(g/L, mg/L) in [Measurement unit]:
0000H: 0.0 to 20.0 g/L
0001H: 0 to 200 g/L
0002H: 0 to 500 g/L
0003H: 0 to 2000 mg/L
0004H: 0 to 5000 mg/L
When 10.0/cm is selected in [Sensor
cell constant], and Conductivity(mS/cm, S/cm) in [Measurement unit]:
0000H: 0.0 to 200.0 mS/cm
0001H: 0.0 to 500.0 mS/cm
0002H: 0 to 2000 mS/cm
When 10.0/cm is selected in [Sensor
cell constant], and Conductivity(S/m, mS/m) in [Measurement unit]:
0000H: 0.00 to 20.00 S/m
0001H: 0.00 to 50.00 S/m
0002H: 0.0 to 200.0 S/m

56

Shinko
MODBUS
Command Function
Type
Code

Data Item

Data
When 10.0/cm is selected in [Sensor
cell constant], and TDS conversion(g/L, mg/L) in [Measurement unit]:
0000H: 0 to 200 g/L
0001H: 0 to 500 g/L
0002H: 0 to 2000 g/L
When Seawater salinity (%) isselected in [Measurement unit]:
0000H: 0.00 to 4.00%

50H/20H

06H/03H

0005H

A11 type

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

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

0006H
0007H
0008H
0009H
000AH

50H/20H
50H/20H

06H/03H
06H/03H

000BH
0020H

A11 value
A11 ON side
A11 ON delay time
A11 OFF delay time
Conductivity input filter
time constant
TDS conversion factor
Temperaturecompensation method

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

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

0021H
0022H
0023H

50H/20H

06H/03H

0029H

50H/20H

06H/03H

0030H

50H/20H

06H/03H

0031H

50H/20H

06H/03H

0032H

50H/20H

06H/03H

0033H

50H/20H

06H/03H

0034H

Temperature coefficient
Reference temperature
Temperature input
decimal point place
Temperature input filter
time constantSet value lockTransmission output 1
typeTransmission output 1
high limit
Transmission output 1 low
limit
Auto-light function

57

When NaCl salinity (%) is selected in[Measurement unit]:
0000H: 0.00 to 20.00%
0000H: No action
0001H: Conductivity input low limit
action0002H: Conductivity input high limit
action0003H: Temperature input low limit
action0004H: Temperature input high limit
action0005H: Error output
0006H: Fail output
0007H: Conductivity input High/Low
limits independent action
0008H: Temperature input High/Low
limits independent action
Set value
Set value
Set value
Set value
Set value
Set value
0000H: Temperature characteristics of
NaCl
0001H: Temperature coefficient (%/ )and a randomly selectedreference temperature.
0002H: No temperature compensation
Set value
Set value
0000H: No decimal point
0001H: 1 digit after decimal pointSet value
0000H: Unlock
0001H: Lock 1
0002H: Lock 2
0003H: Lock 3
0000H: Conductivity transmission
0001H: Temperature transmission
Set value
Set value
0000H: Disabled
0001H: EnabledShinko
MODBUS
Command Function
Type
Code
50H/20H
06H/03H

Data Item
0035H

Display selection

Data
Data
0000H
0001H
0002H
0003H

50H/20H
50H

06H/03H
06H

0036H
0040H

Indication time
Temperature calibrationmode

50H/20H

06H/03H

0041H

50H

06H

0042H

Temperature calibration
value
Conductivity calibrationmode

50H/20H

06H/03H

0043H

50H/20H

06H/03H

0044H

50H/20H

06H/03H

0045H

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

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

0046H
0047H
0048H

50H/20H

06H/03H

0049H

50H/20H

06H/03H

004AH

50H/20H

06H/03H

004BH

50H/20H

06H/03H

0050H

50H/20H

06H/03H

0051H

Conductivity
Display
Conductivity
Conductivity
No indication
No indication

Temperature
Display
Temperature
No indication
Temperature
No indication

Set value
0000H: Conductivity/Temperature
Display Mode
0001H: Temperature calibration modeSet value
0000H: Conductivity/Temperature
Display Mode
0001H: Conductivity calibration
Zero adjustment mode
0002H: Conductivity calibration
Span adjustment modeSet value

Conductivity Zeroadjustment value
Conductivity Span
Set value
adjustment valueA
output when
0000H: Enabled
input errors occur
0001H: Disabled
Cable length correction
Set value
Cable cross-section area
Set value
Output ON time
Set value
when A1 output is ON
Output OFF time
Set value
when A1 output is ON
Output ON time
Set value
when A2 output is ON
Output OFF time
Set value
when A2 output is ON
A12 type
0000H: No action
0001H: Conductivity input low limit action
0002H: Conductivity input high limit action
0003H: Temperature input low limit action
0004H: Temperature input high limit action
0005H: Error output
0006H: Fail output
0007H: Conductivity input High/Low limits
independent action
0008H: Temperature input High/Low limits
independent action
A21 type
0000H: No action
0001H: Conductivity input low limit action
0002H: Conductivity input high limit action
0003H: Temperature input low limit action
0004H: Temperature input high limit action
0005H: Error output
0006H: Fail output
0007H: Conductivity input High/Low limits
independent action
0008H: Temperature input High/Low limits
independent action
58

Shinko
MODBUS
Command Function
Type
Code
50H/20H
06H/03H 0052H

Data Item
A22 type

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

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

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

50H/20H

06H/03H

0069H

50H/20H

06H/03H

006AH

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
Conductivity input
sensor correction
Temperature Display
when no temperaturecompensation
A1 output allocation

50H/20H

06H/03H

006BH

A2 output allocation

50H/20H

06H/03H

006FH

Pt100 input wire type

50H

06H

007FH

Key operation change
flag clearing

59

Data
0000H: No action
0001H: Conductivity input low limit
action0002H: Conductivity input high limit
action0003H: Temperature input low limit
action0004H: Temperature input high limit
action0005H: Error output
0006H: Fail output
0007H: Conductivity input High/Low
limits independent action
0008H: Temperature input High/Low
limits independent action
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
0000H: Unlit
0001H: Reference temperature
0002H: Measured value
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
0001H: Clear change flag

Shinko
MODBUS
Command Function
Type
Code
50H/20H
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

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

0104H
0105H
0106H
0107H
010FH

A11 OFF side
A12 OFF side
A21 OFF side
A22 OFF side
Transmission output 1
status when calibrating

50H/20H

06H/03H

0110H

50H/20H

06H/03H

0111H

Transmission output 1
value HOLD whencalibratingA1 conductivity input
error alarm A
type

50H/20H

06H/03H

0112H

50H/20H

06H/03H

0115H

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

Data Item

Data

A2 conductivity input
error alarm A
type

A1 conductivity input
error alarm band whenA
output ON
A1
conductivity
input
0116H
error alarm time whenA
output ON
0117H A1 conductivity input
error alarm band whenA
output OFF
0118H A1 conductivity input
error alarm time whenA
output OFF
0119H A2 conductivity input
error alarm band whenA
output ON
011AH A2 conductivity input
error alarm time whenA
output ON
011BH A2 conductivity input
error alarm band whenA
output OFF
A2
conductivity
input
011CH
error alarm time whenA
output OFF

60

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
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

Set valueShinkoCommandType
50H/20H

MODBUS
FunctionCode
06H/03H 0125H

50H

06H

0126H

50H/20H

06H/03H

0127H

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
50H/20H

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

50H/20H

06H/03H

50H/20H

06H/03H

50H

06H

50H / 20H

06H/03H

50H / 20H

06H/03H

50H / 20H

06H/03H

Data Item
Conductivity input error
alarm time unit
Transmission output 1
adjustment mode

Transmission output 1
Zero adjustment value
0128H Transmission output 1
Span adjustment value
0131H 3-electrode Conductivity
Sensor resistance0139H A11 High/Low limits
independent lower side span
013AH A12 High/Low limits
independent lower side span
013BH A21 High/Low limits
independent lower side span
013CH A22 High/Low limits
independent lower side span
013DH A11 High/Low limits
independent upper side span
013EH A12 High/Low limits
independent upper side span
013FH A21 High/Low limits
independent upper side span
0140H A22 High/Low limits
independent upper side span
0141H A11 hysteresis
0142H A12 hysteresis
0143H A21 hysteresis
0144H A22 hysteresis
0147H Transmission output 2
type
0148H Transmission output 2high limit
0149H Transmission output 2
low limit
014AH Transmission output 2
adjustment mode (*)

014BH

Transmission output 2
Zero adjustment value
014CH Transmission output 2
Span adjustment value
014DH Transmission output 2
status when calibrating

Data
0000H: Second(s)0001H: Minute(s)0000H: Conductivity/Temperature
Display Mode
0001H: Transmission output 1 Zeroadjustment mode
0002H: Transmission output 1 Spanadjustment 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
0000H: Conductivity transmission
0001H: Temperature transmission
Set value
Set value
0000H: Conductivity/Temperature
display mode
0001H: Transmission output 2 Zeroadjustment mode
0002H: Transmission output 2 Spanadjustment modeSet value
Set value
0000H: Last value HOLD
0001H: Set value HOLD
0002H: Measured value(*) 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)61

ShinkoCommandType
50H / 20H

MODBUS
FunctionCode
06H/03H 014EH

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

11.6.3 Read Only Command
ShinkoMODBUS
Command Function
Type
Code
20H
03H
0080H
20H
03H
0081H

20H

03H

0090H

Data Item
Transmission output 2
value HOLD whencalibrating
Conductivity inputs
for moving average
Temperature inputs
for moving 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 Item

Data
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)

Data

Conductivity (*)
Conductivity
Status flag 10000 0000 0000 0000
215
to
20
20 digit: Temperature sensor burnout 0: Normal 1: Burnout
21 digit: Temperature sensor short-circuited 0: Normal 1: Short-circuited
22 digit: Outside temperature compensation range: Exceeding 110.0
0: Normal 1: Exceeding 110.0
32 digit: Outside temperature compensation range: Less than 0.0
0: Normal 1: Less than 0.0
24 digit: Outside measurement range of conductivity measured
value, salinity and TDS conversion (high limit)
0: Normal 1: Outside high limit
25 digit: Outside measurement range of conductivity measured
value, salinity and TDS conversion (low limit)
0: Normal 1: Outside low limit
6
2 digit: A11 output flag
0: OFF
1: ON
27 digit: A12 output flag
0: OFF
1: ON
28 digit: A21 output flag
0: OFF
1: ON
29 digit: A22 output flag
0: OFF
1: ON
10
2 digit: Not used (Always 0)
211 digit: Unit status flag 0: Conductivity/Temperature Display Mode
1: Setting mode
212, 213 digits: Conductivity calibration status flag
213
212
Status00Conductivity/Temperature Display Mode
During Conductivity calibration Zero0
1
adjustment mode
During Conductivity calibration Span
10adjustment mode
14
2 digit: A1 output
0: OFF
1: ON
215 digit: Change in key operation
0: No
1: YesTemperature
Temperature
62

MODBUS
ShinkoCommand Function
Type
Code
20H
03H

Data Item
0091H

Data

Status flag 20000 0000 0000 0000
215
to
20
0
2 digit:
Not used (Always 0)
21 digit:
A2 output
0: OFF 1: ON
2
3
2 , 2 digits: Not used (Always 0)
24, 25 digits: Transmission output 1 adjustment status flag
25
24
Status00Conductivity/Temperature Display 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
26 digit: A1 conductivity input error alarm output flag
0: OFF 1: ON
7
2 digit: A2 conductivity input error alarm output flag
0: OFF 1: ON
8
9
2 , 2 digits: Transmission output 2 adjustment status flag
29
28
Status00Conductivity/Temperature Display Mode01
During Transmission output 2 Zero adjustment
in Transmission output 2 adjustment mode
10
During Transmission output 2 Span adjustment
in Transmission output 2 adjustment mode
210, 211 digits: Not used (Always 0)212, 213 digits: Temperature calibration status flag
213
212
Status00Conductivity/Temperature Display Mode01
During temperature calibration

214, 215 digits: Not used (Always 0)(*): If 0002H [Seawater salinity (%)] is selected for data item 0003H (Measurement unit), the response
data at the time of input short-circuit will be the fixed value 3000 (30.00 %).
Also, if 0003H [NaCl salinity (%)] is selected, the response data at the time of input short-circuit
will be the fixed value 2500 (25.00 %).

63

11.7 Conductivity & Temperature Calibrations, Transmission Output 1 & 2 Adjustments

via Communication Command
11.7.1 Conductivity Calibration
Cell constant may vary due to deterioration of the 4-electrode Conductivity Sensor.
To correct the varied cell constant, calibration must be performed.
Calibrate Conductivity Zero adjustment first, followed by Conductivity Span adjustment.
The following outlines the procedure for conductivity calibration.
(1) Conductivity Zero adjustment
1 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 whilethe 4-elctrode Conductivity Sensor is being immersed in the solution currently measured.
2 At this stage, do not immerse the 4-elctrode Conductivity Sensor in the standard solution.
3 Set Data item 0042H (Conductivity calibration mode) to 0001H.
The unit moves to Conductivity calibration Zero adjustment mode.
If 213, 212 digits are read at Data item 0081H (Status flag 1), 01 (During Conductivity calibration
Zero adjustment mode) will be returned.
4 Set the Conductivity Zero adjustment value at Data item 0043H (Conductivity Zero adjustment
value) so that conductivity becomes 0 (zero).
When conductivity is 0 (zero), it is not necessary to adjust.
5 Set Data item 0042H (Conductivity calibration mode) to 0000H.
Conductivity Zero adjustment is complete, and the unit will revert to Conductivity/Temperature
Display Mode.
(2) Conductivity Span adjustment
1 Immerse the 4-elctrode Conductivity Sensor in the standard solution.
2 Set Data item 0042H (Conductivity calibration mode) to 0002H.
The unit moves to Conductivity calibration Span adjustment mode.
If 213, 212 digits are read at Data item 0081H (Status flag 1), 10 (During Conductivity calibration
Span adjustment mode) will be returned.
3 Set the Conductivity Span adjustment value at Data item 0044H (Conductivity Span adjustment
value), while checking the conductivity.
4 Set Data item 0042H (Conductivity calibration mode) to 0000H.
Conductivity Span adjustment is complete, and the unit will revert to Conductivity/Temperature
Display Mode.
If Conductivity calibration cannot be performed while calibrating conductivity due to temperaturecompensation error, Conductivity measurement value error, etc., Error code 1 (Burnout, Shortcircuited, etc.) will be returned after 20 to 25 digits are read at Data item 0081H (Status flag 1).
To cancel the error code, set Data item 0042H (Conductivity calibration mode) to 0000H.
The unit will revert to Conductivity/Temperature Display Mode.
If Conductivity Zero/Span adjustment value is set at Data item 0043H (Conductivity Zero adjustment
value) or 0044H (Conductivity Span adjustment value) in Conductivity/Temperature Display Mode,the following error code will be returned.
• Shinko protocol: Error code 34H• MODBUS protocol: Exception code 11H64

11.7.2 Temperature Calibration
Temperature calibration is performed by setting temperature calibration value.
The following outlines the procedure for Temperature calibration.
1

Set Data item 0040H (Temperature calibration mode) to 0001H. The unit moves to Temperature
calibration mode.
If 213, 212 digits are read at Data item 0091H (Status Flag 2), 01 (During temperature calibration)
will be returned.
2 Set the Temperature calibration value at Data item 0041H (Temperature calibration value),
while checking the temperature.
3 Set Data item 0040H (Temperature calibration mode) to 0000H.
Temperature calibration is complete, and the unit will revert to Conductivity/Temperature
Display Mode.

If Temperature calibration cannot be performed while calibrating temperature due to input error,
calibration value error, etc., Error code 1 (Burnout, Short-circuited, etc.) will be returned after
20 to 25 digits are read at Data item 0081H.
To cancel the error code, set Data item 0040H (Temperature calibration mode) to 0000H.
The unit will revert to Conductivity/Temperature Display Mode.
If Temperature calibration value is set at Data item 0041H (Temperature calibration value) in
Conductivity/Temperature Display Mode, the following error code will be returned.
Shinko protocol: Error code 34H
MODBUS protocol: Exception code 11H
11.7.3 Transmission Output 1 Adjustment
Fine adjustment of Transmission output 1 is performed.
This 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 and Span adjustments.
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 25, 24 digits are read at Data item 0091H (Status flag 2), 01 (During Transmission output 1 Zeroadjustment 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 25, 24 digits are read at Data item 0091H (Status flag 2), 10 (During Transmission output 1 Spanadjustment in Transmission output 1 adjustment mode) will be returned.
4 Set Transmission output 1 Span adjustment value at Data item 0128H (Transmission output 1
Span adjustment 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 Transmission output 1 adjustment, set Data item 0126H (Transmission output 1
adjustment mode) to 0000H.
The unit reverts to Conductivity/Temperature Display Mode.
65

11.7.4 Transmission Output 2 Adjustment
Fine adjustment of Transmission output 2 is performed.
This 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 and Span adjustments.
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 29, 28 digits are read at Data item 0091H (Status flag 2), 01 (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 29, 28 digits are read at Data item 0091H (Status flag 2), 10 (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 Transmission output 2 adjustment, set Data item 014AH (Transmission output 2
adjustment mode) to 0000H.
The unit reverts to Conductivity/Temperature Display Mode.

66

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-ECH, set the program so that the requisite minimum
pieces of data such as Data item 0080H (Conductivity), 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 that they can be read only when their set value has beenchanged. 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 007FH (Key operation change flag clearing) is set to 0001H (Clear change flag) during thesetting 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 007FH (Key operation change flag clearing) to0001H (Clear change flag).
2

Set the program depending on the acknowledgement or negative acknowledgement asfollows.
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
0080H (Conductivity), 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 arecomplete.
11.8.3 Note when Sending All Set Values Simultaneously• If A
type is changed at Data item 0005H (A11 type), 0050H (A12 type), 0051H (A21 type) or
0052H (A22 type), the A11, A12, A21 or A22 value will default to 0.00 or 0.0.
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 item
0006H (A11 value), 0053H (A12 value), 0054H (A21 value) and 0055H (A22 value).

6712. Specifications
12.1 Standard Specifications
RatingRated Scale

Input

Input Range
Resolution
0.00 to 20.00 mS/cm
0.01 mS/cm
0.0 to 200.0 mS/cm
0.1 mS/cm
0.0 to 500.0 mS/cm
0.1 mS/cm
0 to 500 mS/cm
1 mS/cm
0.000 to 2.000 mS/cm
0.001 mS/cm
0.000 to 5.000 mS/cm
0.001 mS/cm
0.00 to 50.00 mS/cm
0.01 mS/cm
0 to 2000 S/cm
1 S/cm0 to 5000 S/cm
1 S/cm0.000 to 2.000 S/m
0.001 S/m
0.00 to 20.00 S/m
0.01 S/m
0.00 to 50.00 S/m
0.01 S/m
0.1 S/m
0.0 to 50.0 S/m
0 to 2000 mS/m
1 mS/m0.000 to 5.000 S/m
0.001 S/m
0.0 to 200.0 mS/m
0.1 mS/m
0.0 to 500.0 mS/m
0.1 mS/m
0.0 to 20.0 g/L
0.1 g/L
0 to 200 g/L
1 g/L
0 to 500 g/L
1 g/L
0 to 2000 mg/L
1 mg/L
0 to 5000 mg/L
1 mg/LCell
0.0 to 200.0 mS/cm
0.1 mS/cm
constant
0.0 to 500.0 mS/cm
0.1 mS/cm
10.0/cm
0 to 2000 mS/cm
1 mS/cm
0.00 to 20.00 S/m
0.01 S/m
0.00 to 50.00 S/m
0.01 S/m
0.0 to 200.0 S/m
0.1 S/m0 to 200 g/L
1 g/L
0 to 500 g/L
1 g/L
0 to 2000 g/L
1 g/L
Seawater salinity
0.00 to 4.00%
0.01%
NaCl salinity
0.00 to 20.00%
0.01%
0.0 to 100.0
0.1
Temper- Pt100
ature
Pt10000.0 to 100.0
0.1(*) For the temperature indication, decimal point place is selectable.
4-electrode Conductivity Sensor (Temperature element: Pt100)
4-electrode Conductivity Sensor (Temperature element: Pt1000)

Input
Power supply voltage

Conductivity

Conductivity

Cellconstant
1.0/cmModel
Power supply
voltageAllowable voltage
fluctuation range

WIL-102-ECH
100 to 240 V AC 50/60 Hz

WIL-102-ECH 1
24 V AC/DC 50/60 Hz

85 to 264 V AC

20 to 28 V AC/DC

68

General Structure
External Dimensions
Mounting
Case
Panel
Indication Structure

Setting Structure
Indication Performance
Repeatability

Linearity

Indication Accuracy
Input Sampling Period
Time AccuracyStandard Functions
Conductivity
Calibration

Temperature
Calibration

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
Conductivity
Red LED 4-digits, character size: 10 x 4.6 m (H x W)
Display
Temperature
Red LED 4-digits, character size: 10 x 4.6 m (H x W)
Display
Action Indicators
PWR (Yellow) Lit when power supply is ON.
A1 (Red)Lit when A1 output is ON. (Unlit when TA2 option is added.)
A2 (Yellow)
Lit when A2 output is ON. (Unlit when TA option or TA2
option is added.)T/R (Yellow)
Lit while in Serial communication TX output (transmitting).
Setting method: Input system using membrane sheet key

Conductivity:
0.5% of input span
Salinity conversion: 1% of input span
TDS conversion:
1.5% of input span
Conductivity:
0.5% of input span
Salinity conversion: 1% of input span
TDS conversion:
1.5% of input span
Temperature: 1
250 ms (2 inputs)
Within 1% of setting time

Calibrate Conductivity Zero adjustment first, followed by Conductivity Spanadjustment. However, if(Lock 1),
(Lock 2) or(Lock 3) is selected in [Set value lock] (p.31), the unit cannot move to
Conductivity calibration mode.
In Conductivity Zero adjustment, adjustment is performed so that
conductivity becomes 0, without immersing the 4-electrode Conductivity
Sensor in the standard solution.
In Conductivity Span adjustment, the 4-electrode Conductivity Sensor isimmersed and adjustment is performed while checking conductivity.
However, it is effective within the input rated range regardless of theadjustment value.
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.

69

TDS Conversion

TDS stands for Total Dissolved Solids.
Conductivity of a solution results from the amount of salt, minerals or
dissolved gas.
Conductivity is an index indicating the total amount of a substance in asolution, and TDS indicates only the amount of all dissolved solid
substances.
TDS can be used correctly to compare the two solutions in which one
ingredient, such as NaCl, is included. However, for comparison between asolution in which one ingredient such as NaCl is included and the othersolution in which more than one ingredient is included, TDS error will occur.

Serial Communication

Cable Length
CommunicationLine
Communication
MethodCommunication
Speed
Synchronization
MethodCode Form
Communication
ProtocolData Bit/Parity
Stop Bit
Error Correction
Error Detection
Data Format

TDS and conductivity are expressed with the following formula.
For Conductivity SI unit (S/m, mS/m):
TDS (g/L) = L (S/m)
K
10
TDS (mg/L) = L (mS/m)
K
10
For Conductivity older unit (mS/cm, S/cm):
TDS (g/L) = L (mS/cm)
K
TDS (mg/L) = L ( S/cm)
K
K: TDS conversion factor, L: Conductivity
The following operations can be carried out from an external computer.
(1) Reading and setting of various set values(2) Reading of conductivity, temperature and status(3) Function change, adjustment(4) Reading and setting of user save area
1.2 km (Max), Cable resistance value: Within 50(Terminators are notnecessary, but if used, use 120
minimum on both sides.)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, 2 (Selectable by keypad)
Command request repeat system
Parity check, Checksum (Shinko protocol), LRC (MODBUS protocol
ASCII), CRC-16 (MODBUS protocol RTU)
Communication
ShinkoMODBUSMODBUS
ProtocolProtocol
ASCII
RTU
Start bit1
1
1
Data bit7
7 (8) Selectable
8
Even (No parity, Odd) No parity (Even, Odd)
ParityEven
Selectable
Selectable
1 (2)
1 (2)
Stop bit1
Selectable
Selectable70Insulation/Dielectric Strength
Circuit Insulation
Configuration

Power supply

A2 output
orTransmission
output 1

絶 縁Electrically insulated

Conductivity input

A1 output
orTransmission
output 2

Temperature input
Serial communication: When the corresponding option is ordered.

Insulation Resistance: 10 M
Dielectric Strength

Attached Functions
Set Value Lock

Conductivity Input
Sensor Correction

Outside Measurement
Range

Power Failure
CountermeasureSelf-diagnosis

minimum, at 500 V DC

Between power terminal - ground (GND): 1.5 kV AC for 1 minuteBetween input terminal - ground (GND): 1.5 kV AC for 1 minuteBetween input terminal - power terminal: 1.5 kV AC for 1 minute

Lock 1: None of the set values can be changed.
Lock 2: Only A11, A12, A21 and A22 values can be changed.
Lock 3: All set values – except Sensor cell constant, Measurement unit,
Measurement range, Conductivity Zero and Span adjustment values,
Temperature calibration value, Transmission output 1 Zero and Spanadjustment values, Transmission output 2 Zero and Span adjustment
values – 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.
When a sensor cannot be set at the exact location where measurement isdesired, the sensor-measured conductivity may deviate from the conductivity inthe measured location. In such a case, desired conductivity can be obtainedby adding a sensor correction value. However, it is effective within themeasurement range regardless of the sensor correction value.
When the conductivity measured value, salinity conversion value or TDS
conversion factor is outside the measurement range:
Conductivity Display
Temperature Display
Conductivity, salinity conversion
Measured temperaturehigh limit or TDS conversion highlimit is flashing.
When measured temperature is outside the measurement range, thefollowing will be indicated.
Conductivity Display
Temperature Display
Measured conductivity
Less than 0.0 :Measured conductivity
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 instrument is switched to warm-up status.

71Warm-up Indication

For approx. 4 seconds after the power is switched ON, the input characters
are indicated on the Conductivity Display and Temperature Display.
Display
Character
Measurement Unit
Conductivity (mS/cm)
Conductivity (S/m, mS/m)
Conductivity
Seawater salinity (%)
Display
NaCl salinity (%)
TDS conversion (g/L)
Input Temperature
Selection Item in [Pt100
Display
CharacterSpecification (*)
Input Wire Type] (p.30): 2-wire type
Pt100
Temperature: 3-wire type
DisplayPt1000(*) This input temperature specification was specified at the time of ordering.

Display Sleep
Function

Conductivity, Temperature or No indication can be selected in [Display
selection (p.34)], which is indicated in Conductivity/Temperature Display Mode.
If Conductivity and/or Temperature is selected, and if indication time is set,
the displays become unlit after the indication time has passed from no
operation status. If any errors occur, or if any key is pressed, the display will
re-light. If the indication time is set to 0, the display remains lit, and thisfunction does not work.
Automatically measures and controls brightness of the Conductivity Display,
Temperature Display and action indicators.
If(2-wire type) is selected in [Pt100 input wire type (p. 30)], 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.
The following error codes flash on the Temperature Display.
Error
Error
Error
Description
Occurrence
Code
Type
Contents
Temp. Sensor
Temperature sensor lead
Failburnout
wire is burnt out.
Temp. Sensor
Temperature sensor lead
When
Fail
short-circuitedwire is short-circuited.
measuring
Outside temp.
Measured temperatureorErrorcompensation
has exceeded 110.0 .
calibrating
Outside temp.
Measured temperature
Error
compensationis less than 0.0 .

Auto-light Function
Cable Length
Correction

Error Code(Abbreviation: Temp.: Temperature)

Other
Power Consumption
Ambient Temperature
Ambient Humidity
AltitudeInstallation
environment
Memory protection
Environmental
Specification
WeightAccessories Included
Accessories Sold
Separately

Approx. 8 VA
0 to 50 (32 to 122 )35 to 85 %RH (non-condensing)
2,000 m or less
Overvoltage category , Pollution degree 2
Non-volatile IC memory (Number of writes: 1 million times)
RoHS directive compliant
Approx. 200 g (including the socket)
Instruction manual: 1 copy
Unit label: 1 sheet
Socket: ASK-001-1 (Finger-safe and screw fall prevention)72

12.2 Optional Specifications
A
Output (Option Code: EVT or TA)
If the measured value exceeds the A
value, the A
output will beAOutputturned ON for each A
output type.
A1 or A2 output turns ON depending on the settings in [A1/A2 output
allocation (p.35)] and [Output ON time/OFF time when A1/A2 output ON(pp.35, 36)].
Regardless of options being ordered, A
output status can be read via
Status flag 1 (A11, A12, A21, A22 output flag bit) in Serial communication.
A
output status, when input errors occur, differs depending on theselection in [Aoutput when input errors occur (p.29)] as follows.
• If(Disabled) is selected in [Aoutput when input errors occur(p.29)], the A
output and A
output status will be turned OFF if
input errors occur.
• If(Enabled) is selected in [Aoutput when input errors occur(p.29)], the A
output and A
output status will be maintained if
input errors occur.
During conductivity calibration, A
action is forced OFF.
If Transmission output 1 (TA option) is ordered, only A1 output can be added.
ActionON/OFF actionA
ON side,Setting range differs depending on the selection of A
type andA
OFF sidemeasurement range.
• Conductivity input
Cell constant 1.0/cm:
Measurement Range
0.00 to 20.00 mS/cm
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 500 mS/cm
0.000 to 2.000 mS/cm
0.000 to 5.000 mS/cm
0.00 to 50.00 mS/cm
0 to 2000 S/cm
0 to 5000 S/cm
0.000 to 2.000 S/m
0.00 to 20.00 S/m
0.00 to 50.00 S/m
0.0 to 50.0 S/m
0 to 2000 mS/m
0.000 to 5.000 S/m
0.0 to 200.0 mS/m
0.0 to 500.0 mS/m
0.0 to 20.0 g/L
0 to 200 g/L
0 to 500 g/L
0 to 2000 mg/L
0 to 5000 mg/L
Seawater salinity 0.00 to 4.00%
NaCl salinity 0.00 to 20.00%

73

Setting Range
0.00 to 2.00 mS/cm
0.0 to 20.0 mS/cm
0.0 to 50.0 mS/cm
0 to 50 mS/cm
0.000 to 0.200 mS/cm
0.000 to 0.500 mS/cm
0.00 to 5.00 mS/cm
0 to 200 S/cm
0 to 500 S/cm
0.000 to 0.200 S/m
0.00 to 2.00 S/m
0.00 to 5.00 S/m
0.0 to 5.0 S/m
0 to 200 mS/m
0.000 to 0.500 S/m
0.0 to 20.0 mS/m
0.0 to 50.0 mS/m
0.0 to 2.0 g/L
0 to 20 g/L
0 to 50 g/L
0 to 200 mg/L
0 to 500 mg/L
0.00 to 0.40%
0.00 to 2.00%

Cell constant 10.0/cm:
Measurement Range
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 2000 mS/cm
0.00 to 20.00 S/m
0.00 to 50.00 S/m
0.0 to 200.0 S/m
0 to 200 g/L
0 to 500 g/L
0 to 2000 g/L
Seawater salinity 0.00 to 4.00%
NaCl salinity 0.00 to 20.00%

A
High/Low
limits independent
upper side span,A
High/Low
limits independent
lower side spanAhysteresis

Setting Range
0.0 to 20.0 mS/cm
0.0 to 50.0 mS/cm
0 to 200 mS/cm
0.00 to 2.00 S/m
0.00 to 5.00 S/m
0.0 to 20.0 S/m
0 to 20 g/L
0 to 50 g/L
0 to 200 g/L
0.00 to 0.40%
0.00 to 2.00%• Temperature input
Measurement Range
Setting Range
0.0 to 100.0
0.0 to 10.0
• Conductivity input: Measurement range low limit to Measurement range
high limit (*1)
• Temperature input: 0.0 to 100.0 (*2)(*1) Measurement unit and decimal point place follow the measurement range.
(*2) The placement of the decimal point does not follow the selection. It is fixed.

Setting range differs depending on A
• Conductivity input
Cell constant 1.0/cm
Measurement Range
0.00 to 20.00 mS/cm
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 500 mS/cm
0.000 to 2.000 mS/cm
0.000 to 5.000 mS/cm
0.00 to 50.00 mS/cm
0 to 2000 S/cm
0 to 5000 S/cm
0.000 to 2.000 S/m
0.00 to 20.00 S/m
0.00 to 50.00 S/m
0.0 to 50.0 S/m
0 to 2000 mS/m
0.000 to 5.000 S/m
0.0 to 200.0 mS/m
0.0 to 500.0 mS/m
0.0 to 20.0 g/L
0 to 200 g/L
0 to 500 g/L
0 to 2000 mg/L
0 to 5000 mg/L
Seawater salinity 0.00 to 4.00%
NaCl salinity 0.00 to 20.00%
74

type and measurement range.

Setting Range
0.01 to 2.00 mS/cm
0.1 to 20.0 mS/cm
0.1 to 50.0 mS/cm
1 to 50 mS/cm
0.001 to 0.200 mS/cm
0.001 to 0.500 mS/cm
0.01 to 5.00 mS/cm
1 to 200 S/cm
1 to 500 S/cm
0.001 to 0.200 S/m
0.01 to 2.00 S/m
0.01 to 5.00 S/m
0.1 to 5.0 S/m
1 to 200 mS/m
0.001 to 0.500 S/m
0.1 to 20.0 mS/m
0.1 to 50.0 mS/m
0.1 to 2.0 g/L
1 to 20 g/L
1 to 50 g/L
1 to 200 mg/L
1 to 500 mg/L
0.01 to 0.40%
0.01 to 2.00%

Cell constant 10.0/cm:
Measurement Range
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 2000 mS/cm
0.00 to 20.00 S/m
0.00 to 50.00 S/m
0.0 to 200.0 S/m
0 to 200 g/L
0 to 500 g/L
0 to 2000 g/L
Seawater salinity 0.00 to 4.00%
NaCl salinity 0.00 to 20.00%

A

Type

OutputA
ON delaytime
AOFF delay
time
A1, A2 output
allocations
Output ON time/
OFF time whenA1/A2 output ON
Conductivity input
error alarm

Setting Range
0.1 to 20.0 mS/cm
0.1 to 50.0 mS/cm
1 to 200 mS/cm
0.01 to 2.00 S/m
0.01 to 5.00 S/m
0.1 to 20.0 S/m
1 to 20 g/L
1 to 50 g/L
1 to 200 g/L
0.01 to 0.40%
0.01 to 2.00%• Temperature input:
Measurement Range
Setting Range
0.0 to 100.0
0.1 to 10.0
One type can be selected from the following via the keypad.
• No action• Conductivity input low limit action• Conductivity input high limit action• Temperature input low limit action• Temperature input high limit action• Error output [When the error type is “Error” (p.72), the output is turned ON.]
• Fail output [When the error type is “Fail” (p.72), the output is turned ON.]
• Conductivity input High/Low limits independent action• Temperature input High/Low limits independent action
Relay contact, 1a
Control capacity
3A 250 V AC (Resistive load)
1A 250 V AC (Inductive load cos =0.4)
Electrical life
100,000 cycles
0 to 9999 seconds
0 to 9999 seconds
For A1 (or A2) output, A11 type, A12 type, A21 type and/or A22 type can beallocated. Output is OR output.
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.
Detects actuator trouble.
Even if conductivity input error alarm time has elapsed, and if conductivity
input does not become higher than conductivity input error alarm band, theunit assumes that actuator trouble has occurred, and writes Status flag 2(A1, A2 conductivity input error alarm output flag bit).
In Serial communication, status can be read by reading Status flag 2 (A1,A2 conductivity input error alarm output flag bit).
Conductivity input error alarm is disabled during Conductivity Zero or Spanadjustment.
Conductivity input error alarm is enabled only when
(Conductivity
input low limit action) or(Conductivity input high limit action) is
selected in [A11, A12, A21, A22 type (pp.22, 23)].
75

Transmission Output 1 (Option Code: TA)
Transmission Output 1 Converting conductivity or temperature to analog signal every input
sampling period, and outputs the value in current.
If(No temperature compensation) is selected in [Temperaturecompensation method (p.30)], and if(Temperature transmission)is selected in [Transmission output 1 type (p.32)], Transmission output 1
value will differ depending on the selection in [Temperature Display whenno temperature compensation (p.34)] as follows.
• If(Unlit) or(Reference temperature) is selected, thevalue set in [Reference temperature (p.30)] will be output.
• If(Measured value) is selected, the measured value 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.
Resolution
12000
Current
4 to 20 mA DC (Load resistance: Max. 550 )Output accuracy
Within 0.3% of Transmission output 1 span
Transmission
Fine adjustment of the Transmission output 1 can be performed via
output 1 adjustment Transmission output 1 Zero and Span adjustments.
Transmission
Selects Transmission output 1 status when calibrating conductivity.
output 1 status
Last value HOLD
Retains the last value before conductivity
when calibrating
calibration, and outputs it.
Outputs the value set in [Transmission output 1 value
Set value HOLD
HOLD when calibrating].
Measured value
Outputs the measured value when calibrating
conductivity.
Transmission Output 2 (Option Code: TA2)
Transmission Output 2 Converting conductivity or temperature to analog signal every input
sampling period, and outputs the value in current.
If(No temperature compensation) is selected in [Temperaturecompensation method (p.30)], and if(Temperature transmission)is selected in [Transmission output 2 type (p.32)], Transmission output 2
value will differ depending on the selection in [Temperature Display whenno temperature compensation (p.34)] as follows.
• If(Unlit) or(Reference temperature) is selected, thevalue set in [Reference temperature (p.30)] will be output.
• If(Measured value) is selected, the measured value 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.
Resolution
12000
Current
4 to 20 mA DC (Load resistance: Max. 550 )Output accuracy
Within 0.3% of Transmission output 2 span
Transmission
Fine adjustment of the Transmission output 2 can be performed via
output 2 adjustment Transmission output 2 Zero and Span adjustments.
Transmission
Selects Transmission output 2 status when calibrating conductivity.
output 2 status
Last value HOLD
Retains the last value before conductivity
when calibrating
calibration, and outputs it.
Outputs the value set in [Transmission output 2 value
Set value HOLD
HOLD when calibrating].
Measured value
Outputs the measured value when calibrating
conductivity.
7613. Troubleshooting
If any malfunction occurs, refer to the following items after checking that power is being supplied to theWIL-102-ECH.
13.1 Indication
Problem
The Conductivity/
Temperature Display isunlit.

The Conductivity/
Temperature Display is
dark.
Indication of theConductivity/Temperature
Display is unstable orirregular.

Temperature Display isunlit.
[] is flashing on theTemperature Display.
[] is flashing on theTemperature Display.
[] is flashing on theTemperature Display.
[] is flashing on theTemperature Display.
[] is indicating on
the Conductivity Display.

Possible Cause(No Indication) is selectedin [Display selection (p.34)].
The time set in [Indication time
(p.34)] has passed.

(Enabled) is selected in[Auto-light function (p.34)].
Conductivity calibration andtemperature calibration may nothave finished.
Specifications of 4-electrodeConductivity Sensor may not besuitable.
There may be equipment thatinterferes with or makes noise near
the WIL-102-ECH.

Solution
Select(Conductivity/
Temperature).
If any key is pressed while displays
are unlit, they will re-light.
Set the indication time to a suitable
time-frame.
Select(Disabled).

Perform conductivity calibrationand temperature calibration.
Replace the sensor with asuitable one.

Keep WIL-102-ECH clear of any
potentially disruptive equipment.
Try [Grounding of shield wire
terminal (E)].
(Unlit) is selected in
Select(Reference[Temperature Display when notemperature) or
temperature compensation (p.34)]. (Measured value).
The temperature sensor lead wire Replace the temperature sensor.
is burnt out.
The temperature sensor lead wire Replace the temperature sensor.
is short-circuited.
Measured temperature has
Check the environment ofexceeded 110.0 .
measurement location.
Measured temperature is less than Check the environment of
0.0 .
measurement location.
Internal memory is defective.
Contact our agency or us.

・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.)77

Shielding braid

4-electrodeConductivity Sensor

13.2 Key Operation
ProblemNone of the set values canbe changed.
The values do not changeby the,keys.
Only Avalue can be
set. Other settings are
impossible.
The values do not changeby the,keys.

Possible Cause(Lock 1) is selected in [Setvalue lock (p.31)].

(Lock 2) is selected in [Setvalue lock (p.31)].

SelectSolution(Unlock).

Select(Unlock).

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.
ProblemPossible Cause
Solution
Communication cable is not
Check the communication cableCommunication failure
securely connected, or isand connector.
disconnected/defective.
Incorrect wiring of the
Check the communication cablecommunication cable and/or
and connector.
connector
Imperfect contact between the
Check the communication cablecommunication cable and theand connector.
connector, or between thecommunication connector andinstrument port
Communication speed of the slave Check the communication speed
does not match that of the master. of the slave and master.
The data bit, parity and stop bit ofCheck the data bit, parity andthe master do not correspond tostop bit of the master and thethose of the slave.
slave.
The instrument number (address)
Check the instrument numberof the slave does not correspond(address) of the slave andto that of the command.
command.
The instrument numbers
Check the instrument numbers(addresses) are duplicated in(addresses) of the slave.
multiple slaves.
Make sure that the program is
Check the program.
appropriate for the transmission
timing.
Although communication
A non-existent command code has Check the command code.
is occurring, the response
been sent.
is negative acknowledgeThe setting command data
Check the setting range of thement.
exceeds the setting range of theslave.
slave.
The WIL-102-ECH cannot be set
Check the slave status.
during calibration mode.
Return the unit to Conductivity/
The WIL-102-ECH is in the front
Temperature Display Mode.
keypad operation setting mode.

78

14. Temperature Compensation Method
14.1 Temperature Compensation Based on the Temperature Characteristics of NaCl
When the main ingredient of the salt contained in a sample is NaCl, use temperature compensation
method based on the temperature characteristics of NaCl.
Conductivity of NaCl solution varies with the ratio based on the conductivity at 25 as shown below.
The conductivity at 25 is calculated on the basis of the conductivity ratio at each temperature in(Table 14.1-1).
(Table 14.1-1)
TemperaConductivity
ture ( )ratio of NaCl
0
0.542
5
0.626
10
0.715
15
0.806
20
0.902
25
1.000
30
1.101
35
1.205
40
1.312
45
1.420
50
1.531
55
1.643
60
1.757
65
1.872
70
1.987
75
2.103
80
2.219
85
2.335
90
2.450
95
2.564
100
2.677

Conductivity ratio of NaCl
which is considered to be 1 at 25

Coefficient
1.845
1.596
1.399
1.240
1.109
1.000
0.908
0.830
0.762
0.704
0.653
0.609
0.569
0.534
0.503
0.476
0.451
0.428
0.408
0.390
0.374

Temperature(Fig.14.1-1)

14.2 How to Input Temperature Coefficient
Temperature compensation is conducted using temperature coefficient (%/ ) and a randomly
selected reference temperature.
Conductivity of the solution varies depending on the temperature.
If temperature rises by 1 , the conductivity rises by 2% at 25 basis in general.
Temperature coefficient differs depending on the solution type and its concentration, which ranges
from 0.50 to 2.50.
By inputting the temperature coefficient, temperature compensation can be calculated to find the
conductivity at 25 .
Temperature coefficient 2.00 %/ can be used for most of solutions.
If temperature coefficient of solution is already-known, enter the value. (Table 14.2-1)
If the conductivity at an arbitrary temperature T is already-known, and if reference temperature is
ST , conductivity C(ST) at the reference temperature can be obtained according to the following formula.
C (T )C (ST ) =(1 + 0.01    (T − ST ))C(ST): Conductivity of the solution at ST
C(T): Conductivity of the solution at T
α: Temperature coefficient of conductivity (%)
T:
Arbitrary temperature T
ST: Reference temperature ST
79

(Table 14.2-1)
Tempe- ConcenSubrature
trationstance
( )
Wt%
5
10
15
NaOH
15
20
30
40
25.2
29.4
KOH
15
33.6
42
0.1
1.6
NH3
15
4.01
8.03
16.15
1.5
HF
18
4.8
24.5
5
10
HCl
18
20
30
5
10
20
40
H2SO4
18
50
60
80
100.14
6.2
12.4
HNO3
18
31
49.6
62
10
20
H3PO4
15
40
45
50

Conduc- Temperature
tivitycoefficient
S/m
(%/ )
19.69
2.01
31.24
2.17
34.63
2.49
32.70
2.99
20.22
4.50
11.64
6.48
54.03
2.09
54.34
2.21
52.21
2.36
42.12
2.83
0.02512.46
0.08672.38
0.10952.50
0.10382.62
0.0632
3.01
1.98
0.72
5.93
0.66
28.32
0.58
39.48
1.58
63.02
1.56
76.15
1.54
66.20
1.52
20.85
1.21
39.15
1.28
65.27
1.45
68.00
1.78
54.05
1.93
37.26
2.13
11.05
3.49
1.87
0.30
31.23
54.18
78.19
63.41
49.64
5.66
11.29
20.70
20.87
20.73

Tempe- Concenrature tration
( )
Wt%
5
10
NaCl
18
15
20
25
5
Na2SO418
10
15
5
Na2CO3
18
10
15
5
10
KCl
18
15
20
21
5
KBr
15
10
20
3.25
KCN
15
6.5
5
10
NH4Cl
18
15
20
25
5
10
NH4NO3
15
30
50
2.5
5
CuSO4
18
10
15
10
15
20
CH3COOH
18
30
40
60
Substance

80

Conductivity
S/m
6.72
12.11
16.42
19.57
21.35
4.09
6.87
8.86
4.56
7.05
8.36
6.90
13.59
20.20
26.77
28.10
4.65
9.28
19.07
5.07
10.26
9.18
17.76
25.86
33.65
40.25
5.90
11.17
28.41
36.22
10.90
18.90
32.00
42.10
15.26
16.19
16.05
14.01
10.81
4.56

Temperature
coefficient
(%/ )
2.17
2.14
2.12
2.16
2.27
2.36
2.49
2.56
2.52
2.71
2.94
2.01
1.88
1.79
1.68
1.68
2.06
1.94
1.77
2.07
1.98
1.98
1.86
1.71
1.61
1.54
2.03
1.94
1.68
1.56
2.13
2.16
2.18
2.31
1.69
1.74
1.79
1.86
1.96
2.06

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

Setting Group
Conductivity Input Group
Temperature Input Group
Basic Function Group

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

Factory Default

Data

Factory Default

Data

0.0

and temperature are displayed alternately.

Conductivity Calibration Mode
Character
Setting Item, Setting Range
Conductivity Zero adjustment value(*1)
See (Table 15-1). (pp.81, 82)
Conductivity Span adjustment value(*2)
Setting range: 0.700 to 1.300
(*1)
(*2)

0.00
1.000

and conductivity are displayed alternately.
and conductivity are displayed alternately.

(Table 15-1)
Measurement Range

Cellconstant
1.0/cm

0.00 to 20.00 mS/cm
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 500 mS/cm
0.000 to 2.000 mS/cm
0.000 to 5.000 mS/cm
0.00 to 50.00 mS/cm
0 to 2000 S/cm
0 to 5000 S/cm
0.000 to 2.000 S/m
0.00 to 20.00 S/m
0.00 to 50.00 S/m
0.0 to 50.0 S/m
0 to 2000 mS/m
0.000 to 5.000 S/m
0.0 to 200.0 mS/m
0.0 to 500.0 mS/m
0.0 to 20.0 g/L
0 to 200 g/L
0 to 500 g/L
0 to 2000 mg/L
0 to 5000 mg/L

Conductivity Zero Adjustment Value
Setting Range-2.00 to 2.00 mS/cm-20.0 to 20.0 mS/cm-50.0 to 50.0 mS/cm-50 to 50 mS/cm-0.200 to 0.200 mS/cm-0.500 to 0.500 mS/cm-5.00 to 5.00 mS/cm-200 to 200 S/cm
-500 to 500 S/cm
-0.200 to 0.200 S/m-2.00 to 2.00 S/m-5.00 to 5.00 S/m-5.0 to 5.0 S/m-200 to 200 mS/m
-0.500 to 0.500 S/m-20.0 to 20.0 mS/m
-50.0 to 50.0 mS/m
-2.0 to 2.0 g/L-20 to 20 g/L-50 to 50 g/L-200 to 200 mg/L
-500 to 500 mg/L

81

0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 2000 mS/cm
0.00 to 20.00 S/m
Cellconstant
0.00 to 50.00 S/m
10.0/cm
0.0 to 200.0 S/m
0 to 200 g/L
0 to 500 g/L
0 to 2000 g/L
Seawater salinity 0.00 to 4.00%
NaCl salinity 0.00 to 20.00%-20.0 to 20.0 mS/cm-50.0 to 50.0 mS/cm-200 to 200 mS/cm-2.00 to 2.00 S/m-5.00 to 5.00 S/m-20.0 to 20.0 S/m-20 to 20 g/L-50 to 50 g/L-200 to 200 g/L-0.40 to 0.40%-2.00 to 2.00%

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
Conductivity Input Group
Character
Setting Item, Setting Range
Factory Default
Sensor cell constant
1.0/cmSelection item:: 1.0/cm: 10.0/cm
Cell constant correction value
1.000
Setting range: 0.001 to 5.000
Measurement unit
Conductivity (mS/cm, S/cm)
Selection item:: Conductivity (mS/cm, S/cm): Conductivity (S/m, mS/m): Seawater salinity (%): NaCl salinity (%): TDS conversion (g/L, mg/L)

82

Data

Data

Data

Character

Setting Item, Setting Range
Factory Default
Measurement range
20.00 mS/cm(Table 15-2)
When sensor cell constant 1.0/cm is selected:
Selection
Measurement Unit
Measurement Range
item
0.00 to 20.00 mS/cm
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 500 mS/cm
Conductivity
0.000 to 2.000 mS/cm(mS/cm, S/cm)
0.000 to 5.000 mS/cm
0.00 to 50.00 mS/cm
0 to 2000 S/cm
0 to 5000 S/cm
0.000 to 2.000 S/m
0.00 to 20.00 S/m
0.00 to 50.00 S/m
0.0 to 50.0 S/m
Conductivity(S/m, mS/m)
0 to 2000 mS/m
0.000 to 5.000 S/m
0.0 to 200.0 mS/m
0.0 to 500.0 mS/m
0.0 to 20.0 g/L
0 to 200 g/L
TDS conversion
0 to 500 g/L(g/L, mg/L)
0 to 2000 mg/L
0 to 5000 mg/L
Seawater salinity
0.00 to 4.00%(%)
NaCl salinity (%)
0.00 to 20.00%
When sensor cell constant 10.0/cm is selected:
Selection
Measurement Unit
Measurement Range
item
0.0 to 200.0 mS/cm
Conductivity
0.0 to 500.0 mS/cm(mS/cm)0 to 2000 mS/cm
0.00 to 20.00 S/m
Conductivity
0.00 to 50.00 S/m(S/m, mS/m)
0.0 to 200.0 S/m
0 to 200 g/L
TDS conversion
0 to 500 g/L(g/L)
0 to 2000 g/L
Seawater salinity
0.00 to 4.00%(%)
NaCl salinity (%)
0.00 to 20.00%
TDS conversion factor
Setting range: 0.30 to 1.00

0.50

83

Data

Character

Factory Default
Setting Item, Setting Range
A11 type
No action
Selection item:: No action: Conductivity input low limit action: Conductivity input high limit action: Temperature input low limit action: Temperature input high limit action: Err output: Fail output: Conductivity 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 (p.84)
A21 type
No action
Selection item: Same as those of A11 type (p.84)
A22 type
No action
Selection item: Same as those of A11 type (p.84)
Conductivity input: 0.00 mS/cm
A11 value
Temperature input: 0.0
Setting range:
Conductivity input:
Measurement range low limit to Measurement range high limit (*1)
Temperature input:
0.0 to 100.0 (*2)
Conductivity input: 0.00 mS/cm
A12 value
Temperature input: 0.0
Setting range: Same as those of A11 value (p.84)
Conductivity input: 0.00 mS/cm
A21 value
Temperature input: 0.0
Setting range: Same as those of A11 value (p.84)
Conductivity input: 0.00 mS/cm
A22 value
Temperature input: 0.0
Setting range: Same as those of A11 value (p.84)
A11 hysteresis type
Reference value
Selection item:: Medium value: Reference value(*1) The measurement unit and decimal point place follow the measurement range.
(*2) The placement of the decimal point does not follow the selection. It is fixed.

84

Data

Character

Setting Item, Setting Range
A11 ON side
(Table 15-3)
Conductivity input:
Measurement Range
0.00 to 20.00 mS/cm
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 500 mS/cm
0.000 to 2.000 mS/cm
0.000 to 5.000 mS/cm
0.00 to 50.00 mS/cm
0 to 2000 S/cm
0 to 5000 S/cm
0.000 to 2.000 S/m
Cell
0.00 to 20.00 S/m
constant
0.00 to 50.00 S/m
1.0/cm0.0 to 50.0 S/m
0 to 2000 mS/m
0.000 to 5.000 S/m
0.0 to 200.0 mS/m
0.0 to 500.0 mS/m
0.0 to 20.0 g/L
0 to 200 g/L
0 to 500 g/L
0 to 2000 mg/L
0 to 5000 mg/L
0.0 to 200.0 mS/cm
0.0 to 500.0 mS/cm
0 to 2000 mS/cm
0.00 to 20.00 S/m
Cellconstant
0.00 to 50.00 S/m
10.0/cm
0.0 to 200.0 S/m
0 to 200 g/L
0 to 500 g/L
0 to 2000 g/L
Seawater salinity 0.00 to 4.00%
NaCl salinity 0.00 to 20.00%
Temperature input:
Measurement Range
0.0 to 100.0

Factory Default
Conductivity input: 0.01 mS/cm
Temperature input: 1.0

Setting Range
0.00 to 2.00 mS/cm
0.0 to 20.0 mS/cm
0.0 to 50.0 mS/cm
0 to 50 mS/cm
0.000 to 0.200 mS/cm
0.000 to 0.500 mS/cm
0.00 to 5.00 mS/cm
0 to 200 S/cm
0 to 500 S/cm
0.000 to 0.200 S/m
0.00 to 2.00 S/m
0.00 to 5.00 S/m
0.0 to 5.0 S/m
0 to 200 mS/m
0.000 to 0.500 S/m
0.0 to 20.0 mS/m
0.0 to 50.0 mS/m
0.0 to 2.0 g/L
0 to 20 g/L
0 to 50 g/L
0 to 200 mg/L
0 to 500 mg/L
0.0 to 20.0 mS/cm
0.0 to 50.0 mS/cm
0 to 200 mS/cm
0.00 to 2.00 S/m
0.00 to 5.00 S/m
0.0 to 20.0 S/m
0 to 20 g/L
0 to 50 g/L
0 to 200 g/L
0.00 to 0.40%
0.00 to 2.00%
Setting Range
0.0 to 10.0

A11 OFF side Conductivity input: 0.01 mS/cm, Temperature input: 1.0
Setting range: Same as those of A11 ON side (p.85)
A12 hysteresis type
Reference value
Selection item: Same as those of A11 hysteresis type (p.84)
Conductivity input: 0.01 mS/cm, Temperature input: 1.0
A12 ON side
Setting range: Same as those of A11 ON side (P.85)
A12 OFF side Conductivity input: 0.01 mS/cm, Temperature input: 1.0
Setting range: Same as those of A11 ON side (P.85)
A21 hysteresis type
Reference value
Selection item: Same as those of A11 hysteresis type (p.84)

85

Data

Character

Setting Item, Setting Range
Factory Default
A21 ON side
Conductivity input: 0.01 mS/cm, Temperature input: 1.0
Setting range: Same as those of A11 ON side (P.85)
A21 OFF side Conductivity input: 0.01 mS/cm, Temperature input: 1.0
Setting range: Same as those of A11 ON side (P.85)
A22 hysteresis type
Reference value
Selection item: Same as those of A11 hysteresis type (p.84)
Conductivity input: 0.01 mS/cm, Temperature input: 1.0
A22 ON side
Setting range: Same as those of A11 ON side (p.85)
A22 OFF side Conductivity input: 0.01 mS/cm, Temperature input: 1.0
Setting range: Same as those of A11 ON side (p.85)
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 High/Low limits independent
Conductivity input: 0.00 mS/cm
lower side span
Temperature input: 0.0
Conductivity input: Measurement range low limit to
Measurement range high limit (*1)
Temperature input: 0.0 to 100.0 (*2)
A12 High/Low limits independent
Conductivity input: 0.00 mS/cm
lower side span
Temperature input: 0.0
Setting range: Same as those of A11 High/Low limits independent
lower side span (p.86)
A21 High/Low limits independent
Conductivity input: 0.00 mS/cm
lower side span
Temperature input: 0.0
Setting range: Same as those of A11 High/Low limits independent
lower side span (p.86)
A22 High/Low limits independent
Conductivity input: 0.00 mS/cm
lower side span
Temperature input: 0.0
Setting range: Same as those of A11 High/Low limits independent
lower side span (p.86)
A11 High/Low limits independent
Conductivity input: 0.00 mS/cm
upper side span
Temperature input: 0.0
Conductivity input: Measurement range low limit to
Measurement range high limit (*1)
Temperature input: 0.0 to 100.0 (*2)
A12 High/Low limits independent
Conductivity input: 0.00 mS/cm
upper side span
Temperature input: 0.0
Setting range: Same as those of A11 High/Low limits independent
upper side span (p.86)
A21 High/Low limits independent
Conductivity input: 0.00 mS/cm
upper side span
Temperature input: 0.0
Setting range: Same as those of A11 High/Low limits independent
upper side span (p.86)(*1) The measurement unit and decimal point place follow the measurement range.
(*2) The placement of the decimal point does not follow the selection. It is fixed.

86

Data

Character

Setting Item, Setting Range
Factory Default
A22 High/Low limits independent
Conductivity input: 0.00 mS/cm
upper side span
Temperature input: 0.0
Setting range: Same as those of A11 High/Low limits independent
upper side span (p.86)
A11 hysteresis Conductivity input: 0.01 mS/cm, Temperature input: 1.0(Table 15-4)
Conductivity input:
Measurement Range
Setting Range
0.00 to 20.00 mS/cm
0.01 to 2.00 mS/cm
0.0 to 200.0 mS/cm
0.1 to 20.0 mS/cm
0.0 to 500.0 mS/cm
0.1 to 50.0 mS/cm
0 to 500 mS/cm
1 to 50 mS/cm
0.000 to 2.000 mS/cm
0.001 to 0.200 mS/cm
0.000 to 5.000 mS/cm
0.001 to 0.500 mS/cm
0.00 to 50.00 mS/cm
0.01 to 5.00 mS/cm
0 to 2000 S/cm
1 to 200 S/cm
0 to 5000 S/cm
1 to 500 S/cm
0.000 to 2.000 S/m
0.001 to 0.200 S/m
0.00 to 20.00 S/m
0.01 to 2.00 S/m
Cellconstant
0.00 to 50.00 S/m
0.01 to 5.00 S/m
1.0/cm0.0 to 50.0 S/m
0.1 to 5.0 S/m
0 to 2000 mS/m
1 to 200 mS/m
0.000 to 5.000 S/m
0.001 to 0.500 S/m
0.0 to 200.0 mS/m
0.1 to 20.0 mS/m
0.0 to 500.0 mS/m
0.1 to 50.0 mS/m
0.0 to 20.0 g/L
0.1 to 2.0 g/L
0 to 200 g/L
1 to 20 g/L
0 to 500 g/L
1 to 50 g/L
0 to 2000 mg/L
1 to 200 mg/L
0 to 5000 mg/L
1 to 500 mg/L
0.0 to 200.0 mS/cm
0.1 to 20.0 mS/cm
0.0 to 500.0 mS/cm
0.1 to 50.0 mS/cm
0 to 2000 mS/cm
1 to 200 mS/cm
0.00 to 20.00 S/m
0.01 to 2.00 S/m
Cellconstant
0.00 to 50.00 S/m
0.01 to 5.00 S/m
10.0/cm
0.0 to 200.0 S/m
0.1 to 20.0 S/m
0 to 200 g/L
1 to 20 g/L
0 to 500 g/L
1 to 50 g/L
0 to 2000 g/L
1 to 200 g/L
Seawater salinity 0.00 to 4.00%
0.01 to 0.40%
NaCl salinity 0.00 to 20.00%
0.01 to 2.00%
Temperature input:
Measurement Range
Setting Range
0.0 to 100.0
0.1 to 10.0
A12 hysteresis Conductivity input: 0.01 mS/cm, Temperature input: 1.0
Setting range: Same as those of A11 hysteresis (p.87)
A21 hysteresis Conductivity input: 0.01 mS/cm, Temperature input: 1.0
Setting range: Same as those of A11 hysteresis (p.87)
A22 hysteresis Conductivity input: 0.01 mS/cm, Temperature input: 1.0
Setting range: Same as those of A11 hysteresis (p.87)
A
output when input errors occur Disabled: Enabled: Disabled
87

Data

Character

Setting Item, Setting Range
Factory Default
Conductivity input filter time constant
0.0 seconds
Setting range: 0.0 to 10.0 seconds
Conductivity input sensor correction
0.00 mS/cm
Setting range: 10% of measurement span (*)
3-electrode Conductivity Sensor
0
resistanceSetting range: 0 to 100
Conductivity inputs for moving average
Setting range: 1 to 120

Data

20

(*) The measurement unit and decimal point place follow the measurement range.

Temperature Input Group
Character
Setting Item, Setting Range
Factory Default
Temperature compensation method
NaCl: Temperature compensation is conducted using temperature
characteristics of NaCl. Select when the main salt ingredientin a sample is NaCl.
: Temperature compensation is conducted using temperature
coefficient (%/ ) and a randomly selected reference temperature.
: No temperature compensation
Temperature coefficient
2.00 %/
Setting range: -5.00 to 5.00 %/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
Pt100 input wire type3-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 mm2
Setting range: 0.10 to 2.00 mm2Temperature input filter time constantSetting range: 0.0 to10.0 seconds

0.0 seconds

Temperature inputs for moving average
Setting range: 1 to 120

20

Data

(*) The placement of the decimal point follows the selection.

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
88

Factory Default
UnlockShinko protocol

0

Data

Character

Setting Item, Setting Range
Factory Default
Communication speed
9600 bps: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity
7 bits/Even: 8 bits/No parity: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd
Stop bit
1 bit: 1 bit: 2 bits
Transmission output 1 type
Conductivity transmission: Conductivity transmission: Temperature transmission
Transmission output 1 high limit
20.00 mS/cm
Conductivity transmission: Transmission output 1 low limit to
Conductivity range high limit
Temperature transmission: Transmission output 1 low limit to 100.0
Transmission output 1 low limit
0.00 mS/cm
Conductivity transmission: Conductivity range low limit toTransmission output 1 high limit
Temperature transmission: 0.0 to Transmission output 1 high limit
Transmission output 2 type
Temperature transmission: Conductivity transmission: Temperature transmission
Transmission output 2 high limit
100.0
Conductivity transmission: Transmission output 2 low limit to
Conductivity range high limit
Temperature transmission: Transmission output 2 low limit to 100.0
Transmission output 2 low limit
0.0
Conductivity transmission: Conductivity range low limit toTransmission output 2 high limit
Temperature transmission: 0.0 to Transmission output 2 high limit
Transmission output 1 status
Last value HOLD
when calibrating: Last value HOLD
: Set value HOLD
: Measured value
Transmission output 1 value Conductivity transmission: 0.00 mS/cm
HOLD when calibrating
Temperature transmission: 0.0
Conductivity transmission: Conductivity range low limit to
Conductivity range high limit
Temperature transmission : 0.0 to 100.0
Transmission output 2 status
Last value HOLD
when calibrating: Last value HOLD
: Set value HOLD
: Measured value
Transmission output 2 value Conductivity transmission: 0.00 mS/cm
HOLD when calibrating
Temperature transmission: 0.0
Conductivity transmission: Conductivity range low limit to
Conductivity range high limit
Temperature transmission : 0.0 to 100.0
89

Data

Character

Setting Item, Setting Range
Auto-light function: Disabled: Enabled
Display selection
Conductivity Display
Conductivity
Conductivity
No indication
No indication

Factory Default
Disabled

Conductivity/Temperature
Temperature Display
Temperature
No indication
Temperature
No indication

Indication time
00.00
Setting range: 00.00 (Remains lit)
00.01 to 60.00 (Minutes.Seconds)
Temperature Display whenUnlit
no temperature compensation
Selection item:: Unlit: Reference temperature: Measured value
A1 output allocation
A11 type
Selection item:: 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 (p.90)
Output ON time when A1 output is ON
0 seconds
Setting range: 0 to 9999 seconds
Output OFF time when A1 output is ON
0 seconds
Setting range: 0 to 9999 seconds
Output ON time when A2 output is ON
0 seconds
Setting range: 0 to 9999 seconds
Output OFF time when A2 output is ON
0 seconds
Setting range: 0 to 9999 seconds
A1 conductivity input error alarm A
No action
type
Selection item:: No action: A11 type
: A12 type
: A21 type
: A22 type

90

Data

Character

Setting Item, Setting Range
A2 conductivity input error alarm Atype
Selection item:: No action: A11 type
: A12 type
: A21 type
: A22 type
A1 conductivity input error alarm band
when Aoutput ON

Factory Default
No action

0.00 mS/cm

Setting range:
Conductivity range low limit to Conductivity range high limit
A1 conductivity input error alarm time
0 seconds
when Aoutput ON
Setting range: 0 to 9999 seconds or minutes (*)
A1 conductivity input error alarm band
0.00 mS/cm
when Aoutput OFF
Setting range:
Conductivity range low limit to Conductivity range high limit
A1 conductivity input error alarm time
0 seconds
when Aoutput OFF
Setting range: 0 to 9999 seconds or minutes (*)
A2 conductivity input error alarm band
0.00 mS/cm
when Aoutput ON
Setting range:
Conductivity range low limit to Conductivity range high limit
A2 conductivity input error alarm time
0 seconds
when Aoutput ON
Setting range: 0 to 9999 seconds or minutes (*)
A2 conductivity input error alarm band
0.00 mS/cm
when Aoutput OFF
Setting range:
Conductivity range low limit to Conductivity range high limit
A2 conductivity input error alarm time
0 seconds
when Aoutput OFF
Setting range: 0 to 9999 seconds or minutes (*)
Conductivity input error alarm time unit
Second(s)Selection item:: Second(s): Minute(s)(*) The time unit depends on the selection in [Conductivity input error alarm time unit].

91

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-ECH• Serial number ----------------- No. 195F05000
In addition to the above, please let us know the details of themalfunction, or 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. WIL11CECE92023.09