Inolab pH level 2 Instruction Manual page 56

Error message,
OFL OFL OFL OFL
Error message,
E3 E3
E3 E3
6 What to do if...
Cause
pH electrode:
– Not connected
– Air bubbles in front of the
diaphragm
– Air in the diaphragm
– Cable broken
– Gel electrolyte dried out
Cause
pH electrode:
– Diaphragm contaminated
– Membrane contaminated
– Moisture in the plug
– Electrolyte obsolete
– Electrode obsolete
– Electrode broken
Measuring instrument:
– Incorrect calibration
procedure
– Incorrect solution
temperature (without
temperature probe)
– Socket damp
What to do if...
Remedy
– Connect electrode
– Remove air bubbles
– 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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