English (GB)
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11. Fault finding
Observe the Oxiperm Pro installation and operating instructions.
Fault
Cause
Remedy
1. Display frozen.
a) Cable break.
Rectify
the cable break.
b) Calibration fault.
Repeat the calibration.
c) Incorrect analysis values used for calibration.
Repeat the calibration with correct values.
2. Measured value
fluctuating shortly after
calibration.
a) Measuring cell not allowed to run in correctly
before calibration.
Allow the cell to run in for one hour before
calibration.
3. Severely fluctuating
measured value.
a) Cable and/or connectors corroded.
Replace the cable(s)/connector(s), and replace
the electrode, if necessary.
4. Measured value too high
or too low.
a) Air bubbles in electrolyte.
Unscrew the electrolyte chamber, and remove
any air bubbles by carefully tapping the
electrolyte chamber.
b) Not enough electrolyte in electrolyte chamber.
Unscrew the electrolyte chamber, fill up with
electrolyte and recalibrate.
c) Severe change in temperature of sample water.
Recalibrate.
d) Deposits on electrode finger.
Unscrew the electrolyte chamber. Rinse the
electrode finger, dry it with a dry paper towel,
and carefully clean just the tip of the electrode
finger with the special emery paper, then
recalibrate.
e) Air bubbles in front of measurement opening
(sample water side).
Check the water supply line.
Measuring module
5. Either no or not enough
sample water flowing
through measuring
module.
a) Main water line closed off.
Open
the main water line.
b) No sample water present.
Check the sample water extraction point and
supply line.
c) Isolating valve on measuring module input and/or
output closed.
Open the isolating valve.
d) Circulating pump not functioning.
Switch on the circulating pump.
e) Overheating protection of circulating pump has
been triggered.
Allow the circulating pump to cool off, then
switch it back on.
f)
Circulating pump defective.
Replace the circulating pump.
6. Not enough sample
water flowing through
flow fitting / AQC-D6
measuring cell.
a) Circulating pump not running. See above.
See above.
b) Main current of the measuring module not
sufficiently throttled.
Throttle the main current more heavily using the
throttle valve until the sample water flow rate is
OK.
Summary of Contents for AQC-D6
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