ARTEX PRODUCTS / ACR ELECTRONICS, INC.
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 1000 (P/N: A3-06-2749-1)
Y1-03-0259 Rev. U
Company Confidential
Page 31 of 62
b)
2-Wire Remote Switch (3 position switch):
1.
Push switch lever to “SELF-TEST” position for approximately 1 second, until LED blinks one time, then
release. Error codes will begin to display after about 1 second.
2.
Regardless of how long the ELT has been in the active state, no self-test is performed at turn off using
the 2-wire switch.
BEEPS &
FLASHES
TEST RESULTS
INDICATION
1
System OK
One pulse two seconds long of the local LED, remote light,
and buzzer. This pulse is suppressed if problems are found
during self-test.
2
Code not used in the ELT 1000
3
Code not used in the ELT 1000
4
Low output power
Bad load or faulty ELT
1)
Terminate antenna cable at antenna connection end
w/50Ω load. Repeat self-test. If error clears, proceed
to step 3).
2)
Terminate ELT output w/50Ω load. Repeat self-test.
If error persists, return to factory for servicing –
cannot field repair. If error clears, replace antenna
cable.
3)
Check coax cable and connectors for shorts and
opens, bad center pin, etc. Disconnect, then
reconnect cable. Repeat self-test.
4)
Check antenna ground for low resistance (should be
<100 m Ω)
5)
Antenna should be 3’ away from any vertical metal.
6)
Have antenna checked by factory.
5
No position data present (long message protocol only. Error is suppressed for short messages)
Aircraft navigation system “OFF”
Turn on navigation system
Faulty system interface wiring or
connections.
Check integrity of wiring and connections
6
G-Switch loop between pins 5 and 12 is not present
Jumper open
Verify D-Sub connector jumper is installed by checking for
less than 1Ω between pins 5 and 12. Repair as necessary.
NOTE: When the installed jumper is removed,
wait at
least 60+ seconds
before a test is done to get a
G-switch ‘open’ on the Self-Test (6 flash error)
Jumper missing
Install G-SW enable jumper between pins 5 and 12 in D-Sub
harness connector.
7
Battery Check
Battery operating time is > 1 hr
Replace battery pack
Battery voltage low
Replace battery pack
Battery memory read-write error
Repeat self-test. Replace battery pack if 7-flash persists.
8
Protocol programming data
Missing data such as ELT S/N or
aircraft tail number
ELT requires reprogramming w/appropriate data
Table 6 Self-test Error Codes