ACR Electronics PLB-350B - Manual (Page 15)

Y1-03-0241A 14
A Self-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,
strobe flash
Successful Self-test
Green LED, Less than 4
“beeps”,
Red LED
Failed Self-test: Return unit
to ACR for service
Red LED with beep, 4 additional
“beeps”, Green LED, strobe flash
Successful Self-test: Less
than
24 hours of
transmission life is left in the
batteries.
Red LED with or without beep,
Less than 4 additional
“beeps”,
Red LED, strobe flash (PLB-350B
only)
Failed Self-test: Return unit
to ACR for service. Less
than
24 hours of
transmission life is left in the
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.