
AMMONIA User Manual
AMMONIA_User 9/09
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Sensor Wiring
pH Sensor
Ammonia
Sensor
Sensor, Entry &
Solution Ground
Bare Shield to '-'
Clear, center wire to '+'
1+ 1- 2+ 2-
ID
S2
S1
2O PO
Part: OP
pH & Ammonia
Do not install sensor cabling in the same conduit as AC power cabling.
Solution grounds are single conductor AWG18-22 / 0.25-0.75 mm
2
.
Warning 1:
Do not install pH sensors without installing and connecting a solution ground. Unstable, drifting
pHs will occur if the solution ground is disconnected.
Warning 2:
Turn OFF the controller before connecting or disconnecting pH and ammonia sensors.