What To Do If - wtw pH 3150i Operating Manual

pH 3150i
Error message 0FL
Error message E3
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What to do if...

0FL 0FL 0FL
Cause
pH electrode:
– Not connected
– Air bubble in front of the
diaphragm
– Air in the diaphragm
– Cable broken
– Gel electrolyte dried out
E3 E3 E3
Cause
Electrode
– Diaphragm contaminated
– Membrane contaminated
– Moisture in the plug
– Electrolyte out of date
– Electrode worn out
– Electrode broken
Measuring instrument:
– Incorrect calibration
procedure
– Incorrect solution
temperature
(without temperature probe)
– Socket damp
What to do if...
Remedy
– Connect electrode
– Remove air bubble
– Extract air or
moisten diaphragm
– Replace electrode
– Replace electrode
Remedy
– Clean diaphragm
– Clean membrane
– Dry plug
– Replenish electrolyte or
replace electrode
– Replace electrode
– Replace electrode
– Select correct procedure
– Set up correct temperature
– Dry socket
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