Instruction Manual

handylab Ox 12 What to do if...
49
ba75369e04 01/2011
6 What to do if...
LoBat display
Instrument does
not react to key-
stroke
Error message 0FL
Error message E3
Cause Remedy
– Batteries almost empty – Replace batteries
(see section 5.1 M
AINTENANCE)
Cause Remedy
– Operating condition
undefined or EMC load
unallowed
– Processor reset:
Press the <CAL> and
<ON/OFF> keys at the same
time and release them again.
The software version is
displayed.
Cause Remedy
Display range exceeded
D. O. probe:
– 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
D. O. probe:
– Electrolyte solution depleted – Regenerate probe
– Membrane contaminated – Clean membrane
– Electrode system poisoned – Regenerate probe
– Worn out – Replace probe
– broken – Replace probe