2 oxi system messages, Oxi system messages – Xylem MULTI 3400 MULTI-PARAMETER METERS User Manual
Page 67

Multi 3400i
What to do if...
67
6.2
Oxi system messages
Error message
0FL
0FL
0FL
0FL
Error message
E3
E3
E3
E3
Error message
E7
E7
E7
E7
AR flashes
continuously
Cause
Remedy
Display range exceeded
Oxygen sensor
– Not connected
– Connect the probe
– Cable broken
– Replace probe
– Depleted
– Replace probe
– Short-circuit between gold and
lead electrode
– Clean probe and replace it if
necessary
Cause
Remedy
Invalid calibration
Oxygen sensor
– Electrolyte solution depleted
– Regenerate probe
– Membrane contaminated
– Clean membrane
– Electrode system poisoned
– Regenerate probe
– Worn out
– Replace probe
– broken
– Replace probe
Cause
Remedy
Membrane damaged
– Membrane damaged
– Regenerate probe
– Membrane head not screwed
on tight enough
– Screw membrane head tight
Cause
Remedy
No stable measured value
– Membrane contaminated
– Clean membrane
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