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Y1-03-0244B 16
3. Self-test
ACR strongly recommends performing the Self-test once per month, or at
least two weeks prior to a trip allowing enough time for service should your
beacon require it.
A Self-test is initiated by holding the Self-test button for at least ½ second and
less than 5 seconds.
Your beacon will flash the green LED to signify the test has begun and the
Digital Display will show Pass or Fail message. The green LED will flash a
second time to indicate that the self test was successful.
Components Tested: Data Integrity and Memory; 406 MHz Synthesizer; RF
Power/Battery; GPS header
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 for servicing of your beacon.
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, Display 4 Passes,
Green LED
Successful Self-test
Green LED, Less than 4
Passes, Red LED
Failed Self-test – Return beacon
to ACR
Red LED, Display 4 Passes,
Green LED
Successful Self-test – At least 1
hour of battery power has been
depleted, have battery replaced.
Red LED, Less than 4 Passes,
Red LED
Failed Self-test – Return unit to
ACR for service.
4. Battery Witness Seal Life
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 1 hour of battery life. 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.