Failures Detection And Error Messages; Failures Detection - Hach POLYMETRON 8362 User Manual

Transmitter 9135 - pH measurement in pure water
7.

Failures detection and error messages

Failures detection

Symptom
Reading out of
scale
Unstable display
Slow drift
Low slope or
slow response
Possible
cause
Faulty
transmitter
Faulty
electrode
Electrode not
correctly
connected
Bubbles in the
bulb
Faulty
transmitter
Solution not
earth grounded
Bubbles on the
pH bulb
PH bulb
polluted
Reference
clogged
Buffers
polluted
PH bulb
polluted
Reference
clogged
Faulty
electrode
Remedy
Check the transmitter by connecting a
pH simulator or a voltage generator
instead of the electrode
Check the electrode operation with
buffer solutions
Check the connections
Remove the electrode, shake it and put
it back
Check the transmitter by connecting a
pH simulator or a voltage generator
instead of the electrode
Connect the electrode
Remove the electrode, shake it and put
it back
See cleaning instructions
See cleaning instructions
Use new buffers
See cleaning instructions
See cleaning instructions
Check the electrode operation
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