MC
47
10. Troubleshooting guide / Error messages
+8
Alarm with a complete shutdown of the unit
Whenever the microprocessor electronics registers a failure, a
complete shutdown of the heater and circulating pump is
performed. The alarm light „
“ illuminates and a continuous signal
tone sounds. The MULTI-DISPLAY (LED) indicates the cause for
the alarm in form of a code.
Warning without a complete shutdown of the unit
The MULTI-DISPLAY (LED) indicates the cause for the warning in
form of a code and an acoustic signal sounds in regular intervals.
These messages appear every 10 seconds.
Press enter
to quit the audible signal.
• The circulator is operated without bath fluid, or the liquid level is
insufficient. Replenish the bath tank with the bath fluid.
• Tube breakage has occured (insufficient filling level due to
excessive bath fluid pumped out). Replace the tubing and
replenish the bath tank with the bath fluid.
• The float is defect (e. g., because damaged in transit). Repair
by authorized JULABO service personnel.
• During the self-test after switch-on a short-circuit is registered
between pin 2 and pin 4 of the control cable or the control cable
is interrupted during operation.
Reconnect the cable or eliminate the short-circuit.
• Excess temperature warning or
Excess temperature alarm with a complete shutdown of the
main functional elements being effected.
Warn type: >Li 0 = Warning< or > Li 1 = Alarm<
• Low temperature warning or
Low temperature alarm with a complete shutdown of the main
functional elements being effected.
Warn type: >Li 0 = Warning< or > Li 1 = Alarm<
• Cable of the working temperature sensor interrupted or short-
circuited.
To Next Page
Loading...
