MILITARY CYPRES USER'S GUIDE
Airtec GmbH
Page 33
8999
Battery voltage is too low.
8998
The most probable cause will be a discharged battery.
8997
The cable of a release unit or both release units have an electrical
connection error. The reason could be a broken wire.
100
Excessive variations in ambient air pressure have been measured during
oder
the self-test period. The unit is unable to obtain consistent values for the
4000
ambient air pressure at ground level. Possible reasons could be that an
attempt to switch CYPRES on has been made in a car driving uphill or
downhill, in an elevator, or in a flying aircraft.
9999
9998
9997
Should one of these numbers be displayed for approx. two seconds,
9996
after which the unit switches itself off, you should try again to activate
5000
the unit and repeat the attempt after a short delay six more times. If this
8995
still results in an error display, please send the unit back to the
8994
manufacturer.
8993
8992
8990
5.
Errors Display
If the unit once failed the self-test due to low battery voltage (error code
8999 or 8998), it is absolutely necessary to change the battery. Because of
special characteristics of the battery, it is possible, that a second try to
switch the unit on will be successful. In this case it is not guaranteed, that
the CYPRES will work correctly.
In the event of an error inside the unit the countdown will stop before reaching „0 “
and CYPRES will automatically switch itself off after approx. 2 seconds. The height at
which countdown stops indicates the reason for error as shown in the table below:
If any of these numbers are displayed during normal operation after a successful self-
test they do not indicate an error and can be ignored.
In this situation, after successful self-test, these different number displays have no
influence on the unit's ability to function correctly. Should you wish however to return
the display to 0 again, switch the unit off and on again on the ground.
Whatever happens, please replace the battery with a new one.
