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Altimeter — Manual
7
Backup Battery
Some Indu Altimeters are quipped with an integrated backup battery. The
battery provides backup power in the case when main power bus fails.
7.1
Symbols
The following symbols are used to indicate the status of the backup system.
The symbols are visible in top right corner of the LCD display.
Backup battery system failure. Altimeter may work as
long as the main power bus is working, but backup battery
will not work. The symbol is flashing.
Altimeter is running on backup battery. Less then 10%
capacity is available. Altimeter can shut off anytime. The
symbol is flashing.
Altimeter is running on backup battery. Less then 30%
capacity is available.
Altimeter is running on backup battery. Less then 70%
capacity is available.
Altimeter is running on backup battery. Between 70% –
100% capacity is available.
A flashing arrow indicates that the backup battery is being
charged. Capacity symbols are the same as above.
Small green rectangle - battery is fully charged and it is
in stand-by mode.
7.2
Normal Operation
Upon switching on the system bus and backup battery circuit (see also section
7.4) Indu Altimeter first performs initial checks. Next, it goes into charging
mode. In most cases backup battery is already full and charger will shut off
in a few minutes. After this, small green rectangle will be indicating that
backup system is in stand-by.
7.3
Capacity Test
In order to verify capacity of the backup battery, please follow the following
procedure.
20
7. Backup Battery
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