Elta ADT 406 AF, User Handbook Manual

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Page 31
Apr 17/03
Then the beacon enter in a waiting condition for 30 s (rate : 1.75s ON; 0.25s OFF).
During this state return the switch (12) to ARMED position.
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(2)Self-test by means of the remote control unit
The beacon’s ARMED/OFF/ON toggle switch (12) must be in ARMED position.
The Remote Control ARMED/ON must be in ARMED position.
Press the RESET/TEST pushbutton until the two acknowlegment blink on LED.
Then, after a delay of approximately 6 second, the self test is displayed on the Remote Control Unit LED.
– 10 s permanent illumination for correct operation,
– 10 s blinking condition for failure detection.
Blinking rate indicates the failure source detection as follow :
.
125 ms ON, 125 ms OFF (Frequency 4 Hz), ELT Check Sum failure (software problem)
.
250 ms ON, 250 ms OFF (Frequency 2 Hz), ELT power failure (UHF and/or VHF)
. 500 ms ON, 500 ms OFF (Frequency 1 Hz), Ext. Antenna connection failure or signal
identification missing.
NOTE : On the beacon, after the two short blinks, the indicator light (11) comes ON and the buzzer sounds
during 6 seconds. This is the self-test process. Then the self-test report is indicated as it is done for the Remote
Control Unit LED.
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