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7
To gain access to wiring connections, open the controller by unscrewing the four screws on the cover (L) and pull
open both latches on the cover (R):
CONNECT THE 4-20MA WIRING
Connect the 4-20mA wiring with an 8-conductor 24AWG cabling (0.21" OD) on the terminal block (in the lower-
right corner of the motherboard) using the wiring diagram:
Output
Cabling
1
Chlorine positive (+)
1
Chlorine negative (-)
2
PSU positive (+) or conductivity
2
PSU negative (-) or conductivity
3
Temperature positive (+)
3
Temperature negative (-)
4
pH positive (+)
4
pH negative (-)
Note:
The 4-20mA connection is
not
loop powered.