SPEC SHEET
Plug-in Type Digital Indicating Dissolved Oxygen Meter
WIL-102-DO• 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 Dissolved Oxygen Meter
WIL-10
Input points
Input

22-DO,

2 points
Optical DO sensor
100 to 240 V AC (standard)
Power supply voltage
1
24 V AC/DC (*)
OptionEVT
EVT
output (EVT3, EVT4, EVT5, EVT6)(*1): Supply voltage100 to 240 V AC is standard.
When ordering 24 V AC/DC, enter 1 in Power supply voltage, after ’DO’.

Measurement
range

DOAccessories sold separately: Socket: ASK-001-1 (Finger-safe, Ring terminal unusable)
Input

Scale Range

Resolution

DO concentration

0.00 to 20.00 mg/L

0.01 mg/L

DO % saturation

0.0 to 200.0%

0.1%

Oxygen partial

0.0 to 150.0 kPa

0.1 kPa

0.0 to 50.0

0.1

pressure
Temperature

Indicating accuracy
Time accuracy
Data update cycle
Transmission
output 1, 2

EVT output[Option: EVT]
Self-diagnosis
Input
Ambient temperature
Ambient humidity
Power supply(user-specified)
Structure
Protection structure
Safety standards
Dimensions
WeightDepends on the accuracy of Optical DO sensor
Within 1% of setting time
5 seconds
Converts any one of (DO concentration, water temperature, DO % saturation, or Oxygen
partial pressure) to an analog signal every update cycle, and outputs in current. IfTransmission output high limit and low limit are set to the same value, Transmission
output will be fixed at 4 mA DC.
Resolution: 12000
Output: 4 to 20 mA DC (Load resistance: Max. 550 )Output accuracy: Within 0.3% of Transmission output 1 or 2 span
Output: Open collector
Control capacity: 0.1 A 24 V DC
The CPU is monitored by a watchdog timer, and if an abnormal status occurs,
the instrument is switched to warm-up status.
Optical DO sensor
0 to 50℃
35 to 85 %RH (Non-condensing)WIL-102-DO: 100 to 240 V AC 50/60 Hz Allowable fluctuation range: 85 to 264 V AC
WIL-102-DO 1: 24 V AC/DC 50/60 Hz
Allowable fluctuation range: 20 to 28 V AC/DC
DIN rail mountedCase: Flame-resistant resin, Color: Light gray
Front panel: Membrane sheetOvervoltage category , Pollution degree 2 (IEC61010-1)
RoHS directive compliant
W30 x H88 x D108 mm (including socket)
Approx. 200 g (including socket)

Dimensions(Scale: mm)

Socket (sold separately)385

DIN rail

30Terminal
arrangement

79Standard Spec:EVT Option Spec:

108(29)

3.3

DO RS-485 (sensor input):
DO sensor YB (+) input terminal (Blue) (①)
DO RS-485(sensor input):
DO sensor YA (-) input terminal (Green) ②)
DO POWER FOR SENSOR:
External power supply (-) terminal (Black) andDO sensor shield (③)
DO POWER FOR SENSOR:
External power supply (+) terminal (Red) (④)
TRANSMIT OUTPUT1: Transmission output 1 terminals(⑤ - ⑥)
TRANSMIT OUTPUT2: Transmission output 2 terminals(⑦ - ⑧)
EVT1: EVT1 output (Contact output 1) (⑨ - ⑩)
EVT2: EVT2 output (Contact output 2) (⑪ - ⑫)
When the EVT option is ordered:
EVT3: EVT3 output (Open collector output 3) (*)
EVT4: EVT4 output (Open collector output 4) (*)
EVT5: EVT5 output (Open collector output 5) (*)
EVT6: EVT6 output (Open collector output 6) (*)(*) For EVT3 to EVT6, use the included wire
harness WJ.
POWER SUPPLY:Power terminals: (⑬ - ⑭)
100 to 240 V AC or 24 V AC/DC
24V AC/DC: 1 is entered after ‘DO’.
For 24V DC, do not reverse polarity.
RS-485: Serial communication modular jack

Modular Jack Pin (WIL-102-DO side arrangement)

202001 E02