Instruction manual

105
Feed Time Out
This error message indicates that the feed relay output has been activated for an amount of time
that exceeds the user-programmed maximum allowable time. The feed output relay will be forced
off until the “Reset Time out” button found in the Feed Output Page is clicked.
Possible Causes Corrective Actions
Maximum feed time is set too low for Go to the Feed Output Page and increase the
normal circumstances. programmed value for the maximum feed time
to reflect normal circumstances.
You are feeding in proportion to bleed See above troubleshooting for Bleed Time
time, and bleed time is excessive. Exceeded.
You are feeding based on makeup volume, Go to the Water Meter Input Page and verify
and you are getting false contacts. that the makeup water total is increasing even
when the makeup water is not flowing.
Disconnect the water meter cable from the
controller and verify that the feed makeup
water total stops increasing. Route the water
meter cable away from any AC voltage and
make sure that the cable is shielded.
pH Time Out
This error message indicates that the pH relay output has been activated for an amount of time that
exceeds the user-programmed maximum allowable time. The pH output relay will be forced off
until the “Reset Time Out” button found in the pH Output Page is clicked.
Possible Causes Corrective Actions
Maximum pumping time is set too low for Go to the pH Output Page and increase the
normal circumstances. programmed value for the maximum pumping
time to reflect normal circumstances.
Control direction is set incorrectly. For acid feed, the control direction must be
“Force Lower”. Go to the pH Output Page and
verify the correct selection of the control
direction.
Chemical supply is empty. Refill or replace the pH adjustment chemical
drum.
Faulty pH electrode. Clean and calibrate the electrode as described
in Section 7.3 above. If the calibration fails,
see troubleshooting for pH 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. Repair or replace metering pump.
Fuse blown. Replace fuse (F2).