Instruction manual

106
Faulty metering pump wiring. Correct wiring.
Faulty pH output relay. Replace the relay interface board.
ORP Time Out
This error message indicates that the ORP relay output has been activated for an amount of time
that exceeds the user-programmed maximum allowable time. The ORP output relay will be forced
off until the “Reset Time Out” button found in the ORP Output Page is clicked.
Possible Causes Corrective Actions
Maximum on-time is set too low for normal Go to the ORP Output Page and increase the
circumstances. programmed value for the maximum pumping
time to reflect normal circumstances.
Control direction is set incorrectly. The normal control direction for feeding an
oxidizer is “Force Higher”. Go to the ORP
Output Page and verify the correct selection of
the control direction.
Chemical supply is empty. Refill chemical supply.
Faulty ORP electrode. Clean and calibrate the electrode as described
in Section 7.4 above. If the calibration fails,
see troubleshooting for ORP calibration
failure.
No sample flow, and faulty flow switch. Clean flow switch as described in Section 7.1
above. Verify that the float travels up and
down with the presence and absence of flow.
Faulty metering pump/solenoid valve. Repair or replace metering pump/solenoid
valve.
Fuse blown. Replace fuse (F2)
Faulty metering pump/solenoid valve wiring. Correct wiring.
Faulty ORP output relay. Replace the relay interface board.
System Conductivity High Alarm
This error message indicates the conductivity reading exceeds the user-programmed maximum
allowable value.
Possible Causes Corrective Actions
Programmed value is too close to Go to the Conductivity Input Page and make
sure conductivity set point. that the high alarm limit is set at least 5%
above the set point.
Y Strainer is plugged. Clean Y strainer.