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BLEED TIMEOUT
This error condition will stop conductivity control. It is caused by the bleed output being activated for longer than the programmed Bleed Time
Limit.
Possible Cause
Corrective Action
Programmed value too low for normal conditions.
Increase Bleed Time Limit.
Bleed flow rate too low.
Check for clogged strainer.
Check for insufficient pressure differential.
Bleed valve not opening.
Check for faulty bleed valve.
Check bleed valve wiring.
Check controller relay.
LOW ALARM
The summary screen will display an L at the left end of the bar graph and the alarm relay will trip. The controller will continue to check the
conductivity and feed inhibitor as programmed.
Possible Cause
Corrective Action
Sensor disconnected
Reconnect. Check cable for continuity.
Sensor dry
Check tee for obstruction. Verify flow. Change location of electrode.
Pre-bleed set too low
Check pre-bleed setting compared to % low.
Solenoid valve stuck open
Repair or replace solenoid valve. (Consult your distributor).
Faulty electrode
Evaluate (see Section 7.3). Replace if necessary.
Improper wiring of electrode
Correct wiring. See Section 3.4.
Faulty bleed relay
Replace relay. (Consult factory.)
NO FLOW
This error message will appear if the flow/no flow switch closure is opened. The error message will be displayed and the alarm relay will trip. The
conductivity is updated but all outputs are deactivated.
Possible Cause
Corrective Action
No flow
Check recirculating pump, valves, etc.
Faulty flow switch/cable
Check for open circuit. Disconnect flow switch and short the input
with a piece of wire. If "no flow" message disappears, then switch or
cable may be faulty.
Insufficient pressure drop through sample stream
Check piping.
CAL FAIL
The controller allows a maximum of ±50% correction to the conductivity reading. This is a cumulative correction factor which means that if at one
time the electrode is calibrated by 30%, the next time it is calibrated it will only accept an adjustment of +20% before reporting a Cal Fail.
The most likely problem is that the electrode needs to be cleaned. Refer to section 6.1.
TimeErr:SetTime!
This error message is triggered by corruption of the clock chip. Biocide additions will be locked out until the clock time is reset.
Possible Cause
Corrective Action
Power spikes, high frequency noise
If this occurs frequently, install a power line filter.
7.2
Conductivity Readout Does Not Change
If the readout is stuck at or near zero:
Possible Cause
Corrective Action
Dry electrode
Check for flow through system.
Electrode is disconnected.
Check wiring to electrode. Go to self-test menu, as described in
section 5.2. If readout changes to 900-1100, the problem is with
electrode or connections. See section 7.3 If still at zero, problem is
with controller. Consult the factory.
If the readout is stuck at another number:
Possible Cause
Corrective Action
Dirty or faulty electrode
Evaluate electrode (section 7.3).
Stagnant sample
Check system for proper flow.
