7 Power supply
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73
7.3.2
Rechargeable battery servicing
The actual daily operating time of the device depends on the
battery capacity. Rechargeable batteries lose charge even when
the device is not in use.
SEWERIN recommends: Charge the device regularly when not
in use.
7.4
Alarm at undervoltage
If the remaining capacity of the disposable/rechargeable batteries
falls below a certain level, then the device will issue two levels
of warnings.
1st level
Message:
Batteries almost exhausted
Warnings:
visual:
– the
Remaining capacity
symbol flashes
audible:
– signal is emitted (simultaneously)
– operating signal doubles
Remaining
operating time:
approx. 15 min
2nd level
Message:
Battery exhausted
Warnings:
visual:
– no display except the
Remaining ca-
pacity
symbol
audible:
– a continuous signal is emitted
Remaining
operating time:
none (the device switches itself off)
