Instruction manual

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Faulty sensor input board. This should cause an “ORP Board Failure.
error message, but this can be cleared
once the power is cycled. Replace the
sensor input board.
Makeup Conductivity menus missing from Conductivity Input page
The controller not detecting the makeup conductivity input option board at power up causes this
problem.
Possible Causes Corrective Actions
No sensor input board is installed in the Install a sensor input board in the makeup
makeup conductivity position. conductivity position.
Loose option board connection. Remove power to the unit.
Push board onto pins and turn power on.
Faulty sensor input board. This should cause a “Makeup Conductivity
Board Failure” error message, but this can
be cleared once the power is cycled. Replace
the sensor input board.
Temperature calibration, high/low alarm menus missing from Temperature Input page
The controller not detecting the temperature sensor (which is embedded in the system conductivity
sensor) at power up causes this problem.
Possible Causes Corrective Actions
The conductivity sensor is not connected. Connect the system conductivity sensor and
turn power on.
Faulty conductivity sensor. Measure the temperature signal using an
ohmmeter between the green wire and the
WHT/GRN wire as close to the sensor as
possible with the wires disconnected from
the terminal strip. If the reading is infinite
ohms, replace the conductivity sensor.
Link to 4-20 mA Output page does not appear
The controller not detecting any 4-20 mA output boards at power up causes this problem.
Possible Causes Corrective Actions
No 4-20 mA output boards are installed. Install one or more 4-20 mA output boards
and turn power on.
Poor connection of the 4-20 mA output Remove the option board and inspect both
board. mating connectors for corrosion or damage
Reinstall the option board on turn power on.