
3
3 ELECTRICAL CONNECTIONS
3.1 Connection Diagram
ENSURE electrical mains is disconnected before proceeding.
Signal OutputHold Input
Alarm
Relay B
Relay A
Power Mains
pH
mA
-
+
PE/S
PE
AC:
NL
1
2
5
4
3
6
78 9
10
11
12 13
14
15
17
15
16
*
indicated contact positions are for currentless conditions
Pt 100
Potential Matching Pin (PMP)
Signal Input pH/ORP
S/
V
PE/S
pH
18 19 20
21 22
S/S/
BNC
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