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Troubleshooting
Conductivity system messages
System message
/
Indication range
exceeded
Cell constant
outside of
admissible range
General system messages
System message
Meter does not
react on
keypressing
LoBat
*(
is flashing
Cause
Measured value is outside of
measuring range
• Measuring cell contaminated
• Unsuitable calibration
solutions
Cause
Undefined operation state
of the processor, e. g.
after inadmissible EMC
admission (outside the
specified ranges)
Batteries nearly discharged.
Timeout of serial interface.
Set calibration interval has
run out.
LF 330
LF 340
Action
Clean measuring cell, if
necessary exchange it
Check calibration solutions
Action
Reset of processor:
Press RCL key and
switch meter on.
Charge rechargeable batteries/
Change non-rechargeable
batteries.
Check connected
instrument.
Recalibrate probe.
43
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