Walchem W600 Series Instruction Manual page 23

pH Cu/Ni
1
TEMP–
2
TEMP+
3
IN–
4
IN+
5
–5V
6
+5V
7 COM
8 VM
9 VR
10 +5V
11 +2.5V
SHIELD
12
Cu/Ni SHIELD USE TB3 #12
Figure 6 - Copper/Nickel + pH Board Sensor Input Wiring
Sensor 1
Sensor 2
1
2
3
4
5
6
7
8
9
10
11
12
18
1 1
1
2 2
2
3 3
3
4 4
4
5 5
5
6 6
6
7 7
7
8 8
8
9 9
9
10 10
10
11 11
11
12 12
12
13 13
13
14 14
14
15 15
15
16 16
16
17 17
17
18 18
18
TB4
TB1 TB3 TB2
TEMP– WHT/GRN
TEMP+ GRN/WHT
IN– WHT/ORN
IN+ ORN/WHT
–5V WHT/BLU
+5V BLU/WHT
COM WHT/BLU
VM ORN/WHT
VR GRN/WHT
+5V BLU/WHT
+2.5V WHT/GRN
SHIELD
TB1 (for Sensor 1) or
TB2 (for optional Sensor 2)
19
POWER
SWITCH
FUSE
R1
R2
R3
N N
N N
N N
R4
N N
N N
N N
R5
TB5
R6
N
L
TB7 TB6
Optional Temperature
Compensation
pH electrode
Shield
to TB
3#12