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Refer to dedicated sensor manual for its wiring.
In case a temperature sensor (Pt100-Pt1000) is not available, place a brigde
connection between 28 - 29 and between 29 - 30.
poWer/Loop WirinG DiaGram
Stand-alone application,
no current loop used
Power Supply
12 - 24 VDC
12 - 24 VDC
Connection to a PLC/Instrument with a separate power supply
Power Supply
12 - 24 VDC
2
12 - 24 VDC
1
PLC
4 - 20 mA
21
Input 2
22
4 - 20 mA
23
Input 1
24
proBe WirinG DiaGram
pH/ORP probe connection
+ VDC
2
1
- VDC
+ VDC
2
+ VDC
- VDC
- VDC
1
21
- LOOP 2
- LOOP 2
+ LOOP 2
22
+ LOOP 2
- LOOP 1
23
- LOOP 1
+ LOOP 1
24
+ LOOP 1
SIGNAL
25
26
SHIELD
27
28
29
30
Connection to a PLC with built-in
power supply
PLC Terminals
Power Supply
12 - 24 VDC
4 - 20 mA
Input 2
4 - 20 mA
Input 1
Power Supply
12 - 24 VDC
12 - 24 VDC
or
PLC
4 - 20 mA
Input 2
4 - 20 mA
Input 1
+IN
REF pH
PT100/1000
2
1
21
22
23
24
Power Supply
12 - 24 VDC
2
12 - 24 VDC
1
PLC
4 - 20 mA
21
Input 2
22
+ LOOP 2
4 - 20 mA
23
Input 1
24
+ LOOP 1
+ VDC
- VDC
- LOOP 2
+ LOOP 2
- LOOP 1
+ LOOP 1
+ VDC
2
+
- VDC
- V
1
21
- LOOP 2
- L
22
+ L
- LOOP 1
23
- L
24
+ L
7
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