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9.3. Battery
The m
2
multi device is designed to last its whole service life without the need to replace battery. If for any reason the battery fails, it must by
replaced by the manufacturer.
In case the battery indicates for example 1 % remaining, there is no need to worry, there is still enough reserve power. 100 % is displayed only
the rst time the m
2
multi is switched on by the manufacturer.
However, if the “Bat LO” indication appears during calibration and the battery is down to 0 %, do not use the device!
9.4. Annual inspection
The m
2
multi device must undergo a periodic inspection at least once every 12 months; the inspection is usually performed by the rigger when
repacking the reserve parachute. The inspection shall be recorded in the device Technical Log. The user is always responsible for performing
this inspection and it depends on him whether he performs the required activities himself or whether he has someone else do it.
9.4.1. Inspection procedure
a) Inspect the device visually for any visible mechanical damage, pay special attention to the connection cables, lter, control unit and cutter.
b) Check the battery (under the letter “b” in the device INFO menu, Section 5.4.)
c) Check displayed pressure (under the letter “P” in the device INFO menu, Section 5.4.) Perform the pressure check by comparing it to another
precision instrument that shows barometric pressure. It is also possible to use the actual pressure at the airport. The deviation shall not be
greater than +/-15 hPa.
9. Maintenance
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