INSTALLATION MANUAL OPERATION MANUAL INSPECTION LOG
KANNAD 406 AF / AF-H / AF (6D)
PAGE: 105
JUN 23/2008
4. Autonomy
The energy is provided by a battery pack composed of 3 LiMnO
2
D cells (See
pages 108 & 602 for Kit battery reference).
The autonomy of the 121.5/243 transmission is close to 100 hours at -20°C with
new batteries.
In the worse conditions possible, a distress is pinpointed 5.5 hours maximum
after the ELT activation and the position is subsequently updated (if necessary)
every 2 hours.
As it is therefore preferable to keep the battery power for 121.5/243 MHz
homing frequency transmission for the rescue operations, the 406 MHz
transmission is deliberately stopped after 24 hours to extend the 121.5/243
transmission for as long as possible.
The transmitter battery expiry date is fixed at 6 years after manufacturing. If no
activation of the ELT occurs during the battery lifetime, it shall be replaced
every 6 years
(see note below)
.
NOTE: The useful life time of batteries is twelve (12) years. To be in compliance
with FAR regulations, they have to be replaced every six (6) years when 50
percent of their useful life has expired.
Lithium cells, lithium batteries and equipment containing such
batteries are subjected to regulations and classified under class 9 as
from 1st of January 2003.
