MLS-BA-defsi-0713
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15.2 Maintenance, upkeep
The device may only be opened by trained service engineers authorised by KERN.
Disconnect from the mains supply before opening.
15.3 Disposal
The operating company shall dispose of the packaging and the device in compliance
with the valid national or regional law of the operating location.
16 Troubleshooting
The balance should be switched off for a short time following an interruption in the
programme sequence and disconnected from the mains supply. It is then necessary
to repeat the weighing process from the beginning.
Help:
Malfunction Possible cause
Weight display is not
illuminated.
• The balance is not switched on.
• The mains supply connection has been interrupted
(mains cable not plugged in/faulty).
• Power supply interrupted.
The weight display changes
continually
• Draught/air movement
• Table/floor vibrations
• Weighing plate has contact with other objects.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
The weighing result is
obviously wrong or cannot
be reproduced
• The display of the balance is not at zero
• Adjustment is no longer correct.
• Great fluctuations in temperature.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
• The composition of the sample is not homogenous
• The drying time is too short
• The selected drying temperature was too high,
which is apparent from the oxidation process of the
sample. Lower temperature.
• The sample has reached the evaporation point.
Lower temperature.
• The temperature sensor is dirty.
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