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Chapter 6 Troubleshooting
This section describes many common symptoms, with suggestions as to what
to do.
No reading being obtained,
transducer not firing.
Check power supply. Check
wiring to transducer.
Incorrect reading being obtained for
current level.
Measure actual distance from
transducer head to surface of
material. Enter Program Mode
and directly access P21 (Set
Distance) type in the measured
distance, press ENTER, when
prompted press ENTER again,
wait until SET displayed. Return
to Run Mode, display should now
update to correct reading.
Material level is consistently
incorrect by the same amount.
Check empty level (P105),
display offset (P802), and
measurement offset (P851).
LED’s change colour at relevant
relay switch points but relays do not
change state.
Check supply to unit and ensure
voltage selector set to correct
position.
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