10
4) Self-Test Instructions
To initiate the self-test function of the MicroPLB, remove the protective cover (which
automatically deploys the antenna), and use the stiffened end of the lanyard to push the
spring loaded activator pin completely down (approximately ¼-inch) into the beacon.
Continue holding the activator pin down.
Both the red and green LEDs will blink rapidly for a few seconds. After up to
10 seconds of testing, the beacon will indicate either
green = pass
red = fail
The green light will continue to blink, indicating that the self test function is still
activated.
After 50 seconds, a single 406 MHz transmission with inverted frame sync will be
transmitted to assist advanced testing. Thereafter, the green blinking will continue, but
there will be no more 406 MHz transmissions.
If you have a MicroPLB with
Attached/Internal GPS receiver
, the GPS receiver will
be automatically activated during the self test. A repeating green “Single Blink”
indicates that the GPS receiver is attempting to acquire a valid fix. After a fix is
acquired, a repeating green “Double Blink” will be displayed.
Release the activator pin at any time to stop the test and completely turn off the beacon.
If for any reason the activator pin becomes jammed during self test, the pull string can be
used to help return the activator to the off position.
Self testing should not be performed more often than once a month, otherwise the battery
pack could become excessively depleted by the testing. Excessive testing will also lead
to self-test failures.
If the MicroPLB fails its self-test, it should be returned to an authorized factory
representative for repair.
