ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
C406-1 (453-5002), C406-1HM (453-5003)
Page 21 of 67
Feb 28/2019
25-62-10
2)
A primary feature of the C406-1 Series ELT is its simplicity of operation. As long as the ELT is connected to
the remote switch harness ELT connector, such that pins 5 and 8 are jumpered (G-switch loop), it will
activate in the event of a crash.
NOTE: Neither the cockpit remote switch or the ELT local switch can be positioned in such a
manner as to prevent automatic activation when the ELT is connected properly.
3)
ELT operation is designed to prevent human error and misuse in regards to automatic activation. The ELT
cannot be activated by dropping, rough handling or during shipping.
4)
When the ELT is activated, the presence of the emergency sweep tone and the flashing cockpit remote
switch panel LED indicates an active, normal functioning ELT. The remote switch LED must immediately
begin to flash continuously upon ELT activation.
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
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.
SUBTASK 25-62-10-870-002
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).
SUBTASK 25-62-10-870-003
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 25-62-10-870-004
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
.
3)
Reset the ELT locally by moving the switch on the ELT to the “ON” position, waiting approximately one
second, and then moving it back to the “OFF” position. If the switch is already in the “ON” position, move
it to the “OFF” position.
NOTE: The ELT cannot be reset if either the cockpit remote switch or the ELT local switch is in the
“ON” position.
