What To Do If - wtw pH 3300i Operating Manual

pH 3300i/3400i
Error message 0FL
Error message E3
ba75682e02 03/2008
6

What to do if...

Cause
pH electrode:
– Not connected
– Air bubble in front of the diaphragm
– Air in the diaphragm
– Cable broken
– Gel electrolyte dried out
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– Electrolyte out of date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 sensor)
– Socket damp
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
What to do if...
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