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4.2.7
Battery service life exceeded
If the average lifetime of the battery is reached, this message
will be displayed with every new start of the vacuum unit.
This warning message can be closed by touching the
and only appears again when the negative pressure unit is
restarted.
In order to avoid operational failure of the negative pressure
unit have the battery replaced by the manufacturer as soon as
possible.
4.2.8
Automatic switching off
If a power supply unit has not been connected, in spite of
repeated "Battery discharged" warning messages, the negative
pressure unit switches itself off automatically after 30 minutes.
The negative pressure unit can only be switched on again
once a power supply unit has been connected, thereby re-
charging the battery.
4.2.9
Period tests
A period test is required every two years. This will be displayed
on the vacuum unit.
This warning message can be closed by touching the
and only appears again when the negative pressure unit is
restarted.
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