Bailey Moyes 912 Dragonfly, Руководство по обслуживанию

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Detailed Operation Check:
1 Main Switch ON/OFF/ARM Operation:
In normal operation, the Main Switch, located on the ELT main unit, must be in the "ARM" position. In the event
of a crash, an acceleration activated crash censor (G- switch) turns the ELT 'on' automatically when the ELT
experiences a change in velocity (or deceleration) of 4.5 fps ± 0.5 fps. Activation is also accomplished by means of the
cockpit mounted remote control unit or the "ON" switch on the ELT main unit. To reset the ELT press either
"RESET" switch on the remote control panel or on the main unit.
The ELT has an "OFF" position. This allows the beacon to be handled or shipped without 'nuisance' activation.
Care should be taken when transporting or shipping the ELT not to move the switch or to allow packing material to
become lodged such as to toggle the switch.
Main switch, alternate positions: (Red Light for AK-450)
•
"ON:" ELT transmits immediately. Both Green ON lights on the main unit and remote switch unit flash
and the buzzer sound, at rate of 1 second ON, 4 seconds OFF. The ELT swept Tone must be heard on the 121.5 MHz
VHF Radio.
• "OFF:" The ELT is turned off.
• "ARM:" ELT self-test is confirmed after 24 seconds. If the self-test is passed, the
2 Green ON lights and the buzzer sound must be extinguished. The ELT swept
Tone must be silent on the 121.5 MHz VHF Radio.
• The ELT system is then in the "ARM" mode.
2 Transmitter ID Programming and Self-Test: (No Self Test Mode for AK-450)
Turn the main switch from the "OFF" position to the "ARM" position. The Buzzer sound and the 2 Green ON
lights shall illuminate for 4 seconds, then extinguish. This is to allow coding programming during the next 20
seconds window and self-test for 1 second thereafter.
Note: The ELT may be ID coding programming during the aforementioned 20 seconds window period. If no
programming happened the ELT will then enter the Self Test Mode for 1 second thereafter.
Self Test takes 25 sec. Self-test results (after 25 seconds) are:
If the self-test is “Passed”: the Green ON light is steadily extinguished, and there’s no buzzer sound. ELT swept
Tone must be silent on the 121.5 MHz VHF Radio.
If the self-test is “Failed”: the Green ON light flashes as defined below:
1 flash: Internal Data stored in Memory at fault.
2 flashes: Distress ID stored in Memory at fault.
3 flashes: Battery voltage is low < Useful Life Battery Voltage setting.
4 flashes: Vcc supplies for F3, F2, or F1 at fault.
5 flashes: F3 RF power level < 33 dBm @ 406.028 MHz
7 flashes: F1/F2 VHF RF power level < 17 dBm @ 121.5/243 MHz.
9 flashes: PLL locked in F3 or F1 or F2 at fault.
Continuous flash: no F3/F2/F1 RF output power, ELT shuts down completely
Note:
The self-test mode that transmits a 406 MHz test code pulse monitors certain system functions before returning to
the ARM mode. The 406 MHz test
pulse is ignored by any satellite that receives the signal, but the ELT uses this output to check output power and
correct frequency.
•
Self-test is 520 ms long message burst on the 406 MHz signal. Synchronization pattern is 011 010 000.
• Self-test is then 121/243 MHz (VHF) Continuous Wave during 1s.
•
During Self Test, ELT swept Tone must be silent on the 121.5 MHz VHF Radio.
• If No Antenna or No coaxial cable connected, the ELT may or may not 5 flashes.
Appendix F Page 8