ACR Electronics 2883, PLB-350B Self-Test Sequences Self-Test Guide, Battery witness seal failure

ASelf-test is initiated by holding the Self-test button ( or ) for at least 1 second and less than 5 seconds. Your beacon will sound an initial “beep” and flash the green LED to signify the test has begun. The green LED will flash a second time to indicate that the self test was successful.

NOTE: The “beep” is a very high pitch that some people are unable to hear. Watching the LEDs may be more useful to you.

Components Tested: Data integrity and memory, 406 MHz synthesizer, RF power/battery, GPS header (if equipped).

If a red LED flashes at the completion of the Self-test, your beacon has failed. Repeat the Self-test. If the failure persists, contact ACR Electronics or an authorized Battery Replacement Center to have your beacon serviced.

NOTE: During a self-test your beacon will send a 406 MHz signal coded as self-test to the satellite system. The 121.5 MHz homing signal is inhibited during Self-test. This allows you to test your beacon any time during the day without causing false alerts.

Self-Test Sequences		Self-Test Guide
		(	Green LED		Red LED)
Green LED with beep, 4
additional “beeps”,	Green LED,	Successful Self-test
strobe flash
Green LED, Less than 4 “beeps”,		Failed Self-test: Return unit
Red LED		to ACR for service
		Successful			Self-test:	Less
Red LED with beep, 4 additional		than		24	hours	of
“beeps”, Green LED, strobe flash		transmission life is left in the
		batteries.
Red LED with or without beep,		Failed		Self-test: Return unit
		to	ACR for		service.	Less
Less than 4 additional “beeps”,
		than		24	hours	of
Red LED, strobe	flash (PLB-350B
		transmission life is left in the
only)
		batteries.

4. Battery witness seal failure

If your beacon flashes an initial red LED at the beginning of the Self- test, this indicates that your electronic witness has been broken and you have used more than the allotted battery life for self-testing. While the beacon will still operate normally in a distress situation, ACR strongly recommends you have your battery replaced and the electronic witness reset to ensure that you will have 24 hours of battery power.

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