B. normal operation, C. manual activation, D. elt reset – ACR&Artex C406-N User Manual
Page 34
ACR ELECTRONICS, INC / ARTEX PRODUCTS
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
C406-N (453-5060), C406-N HM (453-5061)
25-62-13
Page 34 of 109
MAR 1/13
(5)
The ELT is considered to be either “ACTIVE” or “INACTIVE”. When “INACTIVE”, the ELT is in a
state of rest and performs no functions. Taking the ELT from the “INACTIVE” state to the
“ACTIVE” state requires a positive switch transition from either the cockpit remote switch, ELT
local switch, or G-switch.
(a)
It is possible the primary G-switch or one of the auxiliary G-switches could activate the
ELT in either a fixed or rotor wing aircraft as the result of severe maneuvers or a very
hard landing.
(b)
To take the ELT from an “ACTIVE” state back to an “INACTIVE” state, a “RESET” must
occur. See SUBTASK 25-62-13-870-004.
(6)
A warning buzzer is required under C126 TSO approval. The buzzer is powered by the ELT and
therefore not dependent upon the aircraft battery for operation. It is not designed to operate
continuously, but sounds at predetermined intervals and runs for shorter periods toward the
end of ELT battery life.
(7)
The ELT is connected to the aircraft navigation system, receives position data, and encodes
the data into the 406 MHz message. The ELT has an on-board power supply backup that
enables the ELT to retain position data for >36 seconds if aircraft power is lost.
SUBTASK 25-62-13-870-002
B. Normal Operation
(1)
The cockpit remote switch is in the “ARM” position (i.e., down).
(2)
The local switch on the ELT is in the “OFF” position (i.e., down).
(3)
Aircraft navigation system active.
NOTE: The aircraft navigation system must be active and sending position data to the ELT
for the ELT to incorporate position data into the 406 MHz message.
SUBTASK 25-62-13-870-003
C. Manual Activation
(1)
The ELT may be manually activated by placing either the remote switch or the ELT local
switch in the “ON” position.
NOTE: As long as the cockpit remote switch and the ELT local switch are in the ARM/OFF
positions respectively, the ELT will automatically activate on impact.
SUBTASK 25-62-13-870-004
D. ELT Reset
(1)
If the ELT is activated accidently, it will need to be reset.
(2)
Reset the ELT from the cockpit by moving the remote switch to the “ON” position, waiting
approximately one second, and then moving it back to the “ARM” position. If the switch is
already in the “ON” position, move it to the “ARM” position.