ACR Electronics GLOBAL FIX - REV G, Product Support Manual, Page: 14 / 22

Y1-03-0157-2 Rev. G 11
Figure 7
TEST SUCCESS FAIL
Initial Test Start
Beep, Red LED, Strobe
Check Data Integrity Beep, Red LED Test stopped
Check 406 MHz Synthesizer Beep, Red LED Test stopped
Check RF Power/Battery
Beep, Red LED
Test stopped
Check Internal GPS Beep, Red LED Test stopped
Successful Test
Green LED, Strobe
Category 1 Self Test Plug
Easy Access Self Test Plug for Beacons
Remove the new Self Test Plug on the front cover for self tests. Be sure to reattach the plug to protect the
beacon from the elements.
Note: You may not be able to see the LEDs but you will hear the beeps.
*NOTE: The “beeps” are a very high-pitched tone
that many people may not be able to hear.
Figure 8
5.10 Performing the Internal GPS Test
WARNING:
The following test should never be performed more than once during the five-year life of the
battery pack! Send the unit to ACR if test needs to be repeated. This test must be performed outside with a
clear and unobstructed view of the sky, preferably not in direct sunlight as it may be difficult to see the LEDs.
If the thumb switch is held in the vertical position after the full functional self-test has finished, the buzzer will
beep and the red LED will light simultaneously. This beep and simultaneous red LED indicates that the GPS
has been turned ON and a live test of the internal GPS has begun. At this point the thumb switch should be
allowed to return to its normal OFF position. The GPS will remain ON until good positional data has been
obtained or 10 minutes has elapsed. If good positional data has been obtained, the GPS will be turned OFF
and the green LED will light for at least 3 seconds. This positional data is not saved for use when the beacon is
activated in an emergency. A green LED is proof that the GPS is functioning properly and that the beacon is in
a location or environment where it can receive the necessary signals from satellites. If the GPS does not
acquire good positional data, the GPS will turn OFF after 10 minutes and there will be no successful green
LED indication. The beacon must remain under observation to witness the results of the test. It is
strongly
recommended that this test not be performed more than once during the five-year life of the battery pack in
order to minimize current drain on the battery pack.
NOTE: The strobe may flash in conjunction with the green LED at the end of a successful GPS test. However,
the only required confirmation of a successful GPS test is the green LED.