Troubleshooting
CAUTION
Disconnect power to the controller before opening the front panel.
Troubleshooting and repair of malfunctioning controller should only be attempted by qualified personnel using
caution to ensure safety and limit unnecessary further damage. Contact the factory.
CALIBRATION FAILURE
The calibration will fail if the adjustment to the gain is outside a certain range.
Possible cause
Corrective action
Dirty electrode
Clean electrode
Improper wiring of sensor to controller
Correct wiring
Wrong cell constant entered
Program the controller cell constant setting at the
value that matches the electrode being used
Incorrect temperature reading or setting
Ensure that the temperature is accurate
Incorrect cable length or wire gauge setting
Set to the correct values
Faulty electrode
Replace electrode
ALARM MESSAGES
Alarm messages will include the name of the input or output as defined in the settings menu, the hardware
identifying type and number (S for sensor input, D for digital input, R for relay output, A for analog input) and the
type of alarm.
High or High-High Alarm
Occurs if the conductivity rises above the high conductivity alarm set points. If your unit is programmed for an
alarm relay output, the relay alarm will activate. The controller will continue to check the conductivity, and any
outputs using the conductivity well remain active.
Possible cause
Corrective action
Dirty sensor
Clean sensor (see "Maintenance" on
Faulty bleed valve
Repair or replace valve
Faulty sensor
Replace sensor
W W W . B A L T I M O R E A I R C O I L . E U
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