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WIKA operating instructions models LSO.06, LSO.25
13334603.01 09/2010 GB/D/F/E
GB
10. Faults
Faults
Possible causes
Measures
No function
Power supply been cancelled Measure mains voltage, check
fuse, check terminal screws (not
soldering ends of the cable)
Flashing of the red and a
yellow LED
Transducer not connected
Transducer connect up
Cable interrupted to the
transducer
Check connections and cables
Cable short-circuited to the
transducer
Check connections and cables
Cal. P3 adjusted too far about
switching threshold
Adjusting in accordance with
instructions 7.2
LED changes, signal
relay changes, however
no reaction of the outer
circuit
Contacts of the Relais REL 1
do not close/open
Measure relay contacts
The signal relay switches
none over despite level
change
P3 adjusted wrongly, (under
switching point)
Adjusting in accordance with
instructions 7.2
Transducer faulty
(mechanical defects)
Carrying out circuit board test.
Circuit board test faultless,
glass top on damage or dirt
approach search, clean or
exchange if under
Transducer faulty
(electrical defects)
Change transducer
Glass tip facing too near at
opposite surface
see chapter 6.2.1
Instrument reacts invers S1 in a wrong position
S1 change position
Instrument reacts
apparently not or too
slowly to level change
S2 open, P1, P2 on the right
stop, delay on
S2 close or P1, P2 turn aniti-
clockwise or wait until delay
time has passed
Test button no reaction
S2 open, P1, P2 on the right
stop, delay on
S2 close or P1, P2 on the left
stop shift and leave S2 open.
Pressing test button so long till
the delay time has passed
CAUTION!
If faults cannot be eliminated by means of the measures listed above, the
instrument must be shut down immediately, and it must be ensured that
pressure and/or signal are no longer present, and it must be prevented from
being inadvertently put back into service.
In this case, contact the manufacturer.
If a return is needed, please follow the instructions see chapter
"12.2 Return".
10. Faults
