SPEC SHEET
Plug-in Type Digital Indicating Turbidity/SS Meter
WIL-101-TU• DIN rail mounted type
• Various settings, calibration operable via software communication (RS-485)• 24 V AC/DC power supply (user-specified)

NameModel

Plug-in Type Digital Indicating Turbidity/SS Meter
WIL-10Input pointsInput

11-TU,
1 point

TU

Power supply voltage

Turbidity sensor (made by OPTEX),SS (Suspended Solids) sensor (made by OPTEX)
1

100 to 240 V AC (standard)
24 V AC/DC (*)

EVT
1-point Contact output
TA
1-point Transmission output(*) Power supply voltage 100 to 240 V AC is standard.
When ordering 24 V AC/DC, enter 1 in Power supply voltage, after ‘TU’.
OptionAccessories sold separately: Socket: ASK-001-1 (Finger-safe, Ring terminals unusable)

Measurement
range

Input

Input Range

0.0 to 100.0 (Formazin)
Turbidity (*1) 0 to 500 (Formazin)SS

0 to 3000 (Formazin)
0 to 1000 mg/L (Kaolin)

Resolution
0.1 (Formazin)
1 (Formazin)
1 mg/L

0 to 50000 mg/L (Kaolin)
10 mg/L(*1) Changeable from Formazin to Kaolin in [Measurement unit].
(*2) The ones digit of the current Turbidity/SS input value is rounded off, and is divided by 10.
This value is indicated as an input value.

Repeatability
0.2% of measurement span 1 digit (However, sensor accuracy excluded.)Linearity
0.2% of measurement span 1 digit (However, sensor accuracy excluded.)
Input sampling period 500 ms
Time accuracy
Within 1% of setting time
Turbidity/SS inputs 1 to 120
for moving average
Self-diagnosis
The CPU is monitored by a watchdog timer, and if an abnormal status occurs, theinstrument is switched to warm-up status.
Input
Turbidity sensor (made by OPTEX): TC-100, TC-500, TC-3000
SS sensor (made by OPTEX): TCS-1000(E), TS-MxS-A
Ambient temperature 0 to 50℃
Ambient humidity
35 to 85 %RH (Non-condensing)Power supply
WIL-101-TU: 100 to 240 V AC 50/60 Hz
Allowable fluctuation range: 85 to 264 V AC
(user-specified)
WIL-101-TU 1: 24 V AC/DC 50/60 Hz
Allowable fluctuation rang: 20 to 28 V AC/DC
Structure
DIN rail mounted type
Case: Flame-resistant resin, Color: Light gray
Front panel: Membrane sheet
Protection structure Overvoltage category , Pollution degree 2 (IEC61010-1)
Safety standards
RoHS directive compliant
Dimensions
W30 x H88 x D108 mm (including socket)
WeightApprox. 200 g (including socket)

Contact output[EVT option]

Transmission
output[TA option]

Relay contact 1a (Output status can be read by reading 4 alarm output flag bits.)
1-point Contact output
Control capacity: 3 A 250 V AC (Resistive load), 1 A 250 V AC (Inductive load, cos =0.4)
Electrical life: 100,000 cycles
Control action: ON/OFF control action
Converting turbidity input to analog signal every input sampling period, outputs the value incurrent.
If Transmission output high limit and low limit are set to the same value, Transmission
output 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 span

Dimensions(Scale: mm)

Socket (sold separately)385

DIN rail30(29)

79

Terminalarrangement

Modular Jack Pin (WIL-101-TU side arrangement)

3.3

108

WHT: Turbidity/SS meter analog signal (+) input
terminal (White) (①)
BLK: Turbidity/SS meter analog signal (-) inputterminal (Black) (②)
RED: Turbidity/SS meter calibration signal output
terminal (Red) (③)
BRW : Turbidity/SS meter power (+) terminal (Brown) (④)
GRN: Turbidity/SS meter self-check input terminal(Green) (⑤)
BLU: Turbidity/SS meter power (-) terminal (Blue)(⑥)
POWER FOR SENSOR +:External power (+) terminal (⑦)
POWER FOR SENSOR -:External power (-) terminal (⑧)
When EVT option is ordered:
OUT: A1 output (Contact output 1) terminals (⑨ - ⑩)
When TA option is ordered:
TRANSMIT OUTPUT: Transmission output
terminals (⑨ - ⑩)
NOT: Connection impossible (⑪)
NOT: Connection impossible (⑫)
POWER SUPPLY: Power terminals (⑬ - ⑭)
24 V AC/DC (When 1 is entered after ‘TU’)
RS-485: Serial communication modular jackPower Supply (OMRON products recommended.)
S8VS-01512 (12 V DC): Turbidity sensor: TC-100, TC-500, TC-3000,
S8VS-01524 (24 V DC): SS sensor: TS-MxS-A

SS sensor: TCS-1000(E)201910 E03