MPAAD User Manual
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3. User Menu
The user can access a simple menu where he can view the following data:
The height of opening during the previous jump
Total number of jumps
Remaining battery capacity in percents
Battery voltage in volts
Device manufacturing number
Controlling firmware version
4. Main parts
All of the device parts are contained in a flat, metal case that is divided in three
compartments. The upper one contains a microprocessor, a real-time clock, supporting
electric circuits, a barometric pressure sensor with a display and two buttons. The lower
compartment contains a battery. The middle compartment contains a pyrotechnic chopping
mechanism. The battery and the chopping mechanism can be replaced.
5. Location of the device
The device is located under the lower part of the packing bag of the reserve parachute. Its
control buttons and display can be accessed through a window on the rear side of the
packing. The closing loop of the reserve parachute runs through the opening in the central
device part where the chopping mechanism is placed as well. MPAAD fills up the area that
is naturally created in the between-the-blade part of the packing of the reserve parachute by
pulling the closing loop through a padding plate.
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