SPEC SHEET
Plug-in Type Digital Indicating pH Meter
WIL-102-PH• DIN rail mounted type
• Various settings, calibration operable via software communication (RS-485)• 24 V power supply available (user-specified)• Cleansing output function equipped• Transmission output 1 and 2 (optional)
NameModel

Plug-in type digital indicating pH meter
WIL-10
Input points
Input

22-PH

PH

Power supply voltage
Option,1EVTTA
TA2

2 points
Pt1000pH combined
Pt spec (*1)
Pt100
electrodesensor
Cu spec (*1) Cu500/25
100 to 240 V AC (standard)
24 V AC/DC (*2)
2-points Contact output
1-point Transmission output,
1-point Contact output
2-points Transmission output(*1) This input temperature specification was specified at the time of ordering.
(*2) Power supply voltage 100 to 240 V AC is standard.
When ordering 24 V AC/DC, enter 1 in Power supply voltage, after ‘PH’.

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

Measurement
pH value: pH 0.00 to 14.00
Resolution: pH 0.01
rangeTemperature: 0.0 to 100.0
Resolution: 0.1
Repeatability
pH value: pH 0.05
Linearity
pH value: pH 0.05
Indication accuracy Temperature: 1Calibration
2-points Automatic or Manual calibration
function
2-points Automatic calibration: Automatic electrode quality evaluation
Standard solution type: pH 2, 4, 7, 9, 10 (JIS)Combination of Standard solution: pH 7 (1st solution) and any 2nd solution
Manual calibration: 2 types of solution with a difference of 2 pH or more
Self-diagnosis
Temperature compensation element
Temperature compensation range
Ambient temperature
Ambient humidity
Power supply(user-specified)
Structure
Protectionstructure
Safety standards
Dimensions
WeightTemperature calibration (1 point)
The CPU is monitored by a watchdog timer, and if an abnormal status occurs,
the instrument is switched to warm-up status.
pH combined electrode sensor (pH sensor: Based on JIS Z8802, Temperature element:
Pt1000 or Pt100)
pH combined electrode sensor (pH sensor: Based on JIS Z8802, Temperature element:Cu500/25 )0.0 to 100.0
0 to 50 (32 to 122 )35 to 85 %RH (Non-condensing)WIL-102-PH: 100 to 240 V AC 50/60 Hz Allowable fluctuation range: 85 to 264 V AC
WIL-102-PH 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 sheet
Overvoltage category , Pollution degree 2 (IEC61010-1)
RoHS directive compliant
W30 x H88 x D108 mm (including socket)
Approx. 200 g (including socket)

Contact output[EVT option]
Transmission
output 1[TA option]

Transmission
output 2[TA2 option]

Dimensions(Scale: mm)

Relay contact 1a (Bit reading via 2 status flags for 1 output in Serial communication)
2-points 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
Converting pH or temperature to analog signal every input sampling period, outputs thevalue in current. (Factory default: pH)
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
1-point Contact output: See the Contact output (EVT option).
Converting pH or temperature to analog signal every input sampling period, outputs the value incurrent. (Factory default: Transmission output 1: pH, Transmission output 2: Temperature)
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
Socket (sold separately)385

DIN rail

3079

Terminalarrangement

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

108(29)

3.3

T, T: Temperature compensation sensor
terminals ( 5 - 6 )Temperature element: Cu500 (2-wire)
A, B: Temperature compensation sensor
terminals ( 5 - 6 )Temperature element: Pt100 (2-wire),
Pt1000A, B, B: Temperature compensation sensor
terminals ( 5 - 6 - 7 )Temperature element: Pt100 (3-wire)
G, R: Electrode sensor terminals ( 1 - 2 )pH combined electrode sensor
E:
Shield wire terminal ( 3 )pH combined electrode sensor
POWER SUPPLY: Power terminals ( 13 - 14 )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 OUTPUT1: 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 )RS-485: Serial communication modular jack• When no option is ordered, A1, A2,
TRANSMIT OUTPUT1 and TRANSMITOUTPUT2 terminals are not equipped.
202001 E02