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3.5.3.4
Current draw tests:
CAUTION:
The following tests involve measurement of the lithium battery pack.
Exercise extreme caution to avoid causing a short circuit condition
which will blow the fuse in the battery cell. It is recommended that only
an experience technician perform these tests.
A test harness (P/N TS-451-HN-1) may be ordered from Ameri-King Corp. at 714-
842-8555
All tests must be performed in an RF screen room or with the ELT in a shielded
container that will substantially attenuate the RF signal.
All "ON" state current measurements must be made with the RF outputs loaded with
50 ohms rated for 5 watts (either a resistive load or equipment with 50 ohm
impedance padded with 10 dB / 5 Watt attenuator, i.e. a spectrum analyzer).
NOTE: the ELT may activate (turn "ON") when the various connections are initially
made during the following current tests. This is normal. Press the RESET
Switch, to Reset the unit.
"OFF" Mode Current Measurement:
Remove the battery pack as described in Section 2.5.1
Disconnect the 2-pin harness
Install the test harness P/N TS-451-HN-1 and inline ammeter as shown in Fig. 4-2
Ensure the ELT is "OFF"
Measure the current with the ammeter. The measured current should be 0
microamps (uA).
"ARM" Mode Current Measurement:
Measure the current with the ammeter. The measured current should be not
more than 20 uA.
"ON" Mode Current Measurement:
Note:
Current draw during this test may exceed 2.0 Amps during the 406.028 MHz
burst. Ensure the ammeter is set on the appropriate range to accommodate this
level of current.
Activate the ELT by select ON, allow it to stabilize.
The measured steady state current should not exceed 150 milliamps (mA).
When the 406.028 MHz module is on (generating the 406.028 MHz burst) the
current may exceed 2.0 amps.
Turn the ELT OFF
Disconnect the test harness P/N TS-451-HN1
Reconnect the 2-pin module power harness
Reinstall the battery pack as described in Section 4.3.4
Содержание AK-451 Series
Страница 23: ...23 Figure A Front view of ELT Figure B 3 D view of ELT ...
Страница 31: ...31 Figure 2 1 Mounting Tray for ELT AF AP P N 450 013 Figure 2 2 Holder for ELT AF AP P N 450 014 ...
Страница 32: ...32 Figure 3 Mounting Tray with Clamp Holder for ELT AF AP ...
Страница 37: ...37 Figure 6 Whip Antenna Model AK 451 017 1B ...
Страница 39: ...39 Figure 2 1 2 ELT with mounting tray holder and adapter tray ...
Страница 42: ...42 Figure 7 1 Rod Antenna AK 451 017 2A 1 ...
Страница 45: ...45 Figure 8 Blade Antenna AK 451 017 3A ...
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Страница 50: ...50 Figure 10 ELT Remote Switch Installation Figure 10 1 Mounting bracket for ELT Remote Unit Continued ...
Страница 51: ...51 Figure 11 Remote Audio Buzzer Monitor P N 451018 ...
Страница 54: ...54 Figure 12 2 Interconnecting Wiring Cable between ELT Remote Unit and Main Unit Part No 4500041 4 ...
Страница 63: ...63 Figure 14 1a Wiring Diagram for AK 451 with 4 wire interconnecting ELT Main Unit and Remote Switch Unit ...
Страница 64: ...64 Figure 14 1b Wiring Diagram for AK 451 with 2 wire interconnecting ELT Main Unit and Remote Switch Unit ...
Страница 79: ...79 Figure 18 ELT Front Panels Main Unit and Remote Unit ...
Страница 84: ...84 ELT S Top Label Figure 19 Automatic Portable ELT AP with integral antenna Survival ELT S ...
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Страница 138: ...138 Table 1 List of all available Protocols ELT Non Location Protocols ...
Страница 139: ...139 ELT Location Protocols User Location Protocols ...
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Страница 230: ...230 APPENDIX K MATERIAL SAFETY DATA SHEET FOR BATTERY ...
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