wtw inoLab Oxi Level 2 Operating Manual page 55

Error message,
OFL OFL OFL OFL
Error message,
E3 E3
E3 E3
Error message,
E7 E7
E7 E7
6 What to do if...
Cause
Display range exceeded
D. O. probe:
– Not connected
– Depleted
– Cable broken
– Short circuit between gold
and lead electrode
Cause
Invalid calibration
D. O. probe:
– Electrolyte depleted
– Membrane contaminated
– Electrode system poisoned – Regenerate D. O. probe
– obsolete
– broken
Cause
Damaged membrane
– Membrane damaged
– Membrane head not tight
enough
What to do if...
Remedy
– Connect D. O. probe
– Replace D. O. probe
– Replace D. O. probe
– Clean D. O. probe, if
necessary exchange it
Remedy
– Regenerate D. O. probe
– Clean membrane
– Replace D. O. probe
– Replace D. O. probe
Remedy
– Regenerate D. O. probe
– Screw membrane head
tight
125