Julabo BAT7146, Руководство по эксплуатации, Страница: 78 / 172

Troubleshooting guide / Error messages
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10. Troubleshooting guide / Error messages
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Whenever the microprocessor electronics registers a failure, a
complete shutdown of the heater and circulation pump is performed.
The alarm light " " illuminates and a continuous signal tone
sounds.
•
Cause:
The waterbath is operated without bath liquid, or the liquid level
is insufficient
or
The adjusted temperature limit was exceeded or the temperature
fell below the limit.
•
Remedy: Replenish the bath tank with the bath liquid.
Control the adjustment of the temperature limit.
Get to safety the samples.

The wires of the working temperature sensor are interrupted or
short-circuited.




other errors



•
Heating circuit interrupted.
•
Short-circuit of triac.
•
Short-circuit in alarm relay.
60
30
15 45
4 s
After eliminating the malfunction, press the mains power switch off
and on again to cancel the alarm state.
If the unit cannot be returned to operation, contact an authorized
JULABO service station.