Instruction manual

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8.0 TROUBLESHOOTING
8.1 ERROR MESSAGES
Conductivity Calibration Failure
This error message occurs after calibration of the conductivity sensor. A clean sensor should give a
predictable signal in a solution of known conductivity. If the calibration adjusts the signal more
than 50% away from the predicted value, the calibration will fail. A signal this far off indicates a
problem with the reading, and is not normal.
Possible Causes Corrective Actions
Dirty sensor. Clean sensor as described in Section 7.2 above.
Incorrect sensor cable used. Refer to Installation Guidelines in Section 3.3.
Sensor cable disconnected. Reconnect cable.
Sensor cable connected incorrectly Check connections of all 6 wires against Fig 5
Problem with hand-held instrument Refer to the troubleshooting guide for the hand held
instrument used to determine the system conductivity.
Faulty sensor. Replace sensor.
Faulty core interface circuit board Replace the core interface board.
(if Sensor 1).
Faulty sensor option circuit board Replace the sensor option board.
(if Sensors 2-4).
In Boilers, Flashing Refer to Installation Guidelines in Section 3.3
If Intermittent Sampling, faulty valve Check all upstream and downstream valves to ensure
that a sample is reaching the sensor.