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6 Annex
6.2
Change of the buffer battery
CAUTION!
The device contains a buffer battery that is used for data buffering when the device is in
switched off mode or if the power fails. The life of the battery is at least 7 years. A low battery
is indicated by the battery pre-alarm ("Battery low"). An empty battery is indicated by the bat-
tery alarm ("Battery empty").
If the battery is not changed in time, data may be lost!
The battery must be replaced within 4 weeks after the battery pre-alarm has been triggered.
The battery change must be carried out exclusively by the manufacturer‘s service department.
For this purpose the device must be sent to the manufacturer.
