+GF+ Signet 4630 Operating Instructions Manual page 42

Appendix
Transmitter Error Messages - continued
FCl= – – – – – –
CHK pH SENSOR
FCl= – – – – – –
CHK pH PREAMP
FCl= WRONG SENSOR
NOTE: Whenever a new type of Cl Sensor is connected to the preamp, a power recycling is required. Another option is to
perform a "Find New Sensor" under the Option Menu.
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463X Chlorine Systems Manual
pH sensor is not detected.
pH preamp is not detected.
Wrong sensor is detected.
pH sensor is not connected.
Wrong wiring.
Damaged pH sensor.
pH preamp is not connected.
Wrong wiring.
Damaged preamp.
Different type of sensor is
connected.
Wrong sensor type is selected
under Option Menu.
Check pH sensor connections
or change pH input to Manual in
Options Menu.
Check pH preamp wiring.
Perform a "Find New Sensor" or
recycle power afterward.
Use correct sensor type.
Perform a "Find New Sensor" or
recycle power afterward.
Select correct sensor type under
Option Menu.