MPAAD User Manual
8
HEAD IV
Maintenance
1.
Deactivated device
The display is empty and whenever the left or right button is pressed, intentionally or by
accident, the display indicates
[ OFF ]
.
2.
Device activation
The device is started by pressing the buttons of the so-called activation sequence several
times. First release both buttons. Press the left button and keep it pressed
( o )
.
After three
seconds, the display will show number one
[ 1 ]
. Press the right button
( > )
three times in
a row and release it. After each pressing the display will show a growing row of numbers
[ 12 ]
,
[ 123 ]
and
[ 1234 ]
.
Once numeral 4 has appeared on the display, release the left
control button
( o ).
This activation sequence is then complete. The whole sequence must
not last longer than ten seconds. If a mistake is made the whole procedure must be
repeated.
The display shows
[ ON ]
briefly and then it images the remaining capacity of the battery
ranging from
[ 100% ]
to
[ 0% ]
. Subsequently, automatic calibration takes place and
[ CAL ]
appears on the display
.
Afterwards, the machine switches to a stand-by mode.
During the activation procedure, MPAAD checks the battery, chopping mechanism and
electronics.
3.
Machine deactivation
Turn off the device in the same way in which you activated it – i.e. by means of the
activation sequence. The display shows
[ OFF ]
. If you forget to turn the device off, it turns
off automatically once the time of the stand-by mode has been fulfilled. The device can be
turned off during the stand-by and jump modes.
4.
Calibration
Calibration is carried out to set a zero height for the landing surface. It is started when
activating the device and then automatically after each jump. When
[ CAL ]
appears on the
display
,
the device measures a current pressure and sets it as a height zero value
.
Therefore, you should always activate the device only in the area of the landing surface. If
the values fluctuate badly during the measurement of pressure, an error is shown on the
display. The device has to be deactivated.
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