ACR Electronics 2774 Technical Information Seite 13

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Y1-03-0148-2 Rev. H
10
Figure 6
ON position:
Notice the
Activation
Indicator
Plastic Pin
has been
broken off.
OFF position:
Note the
Activation
Indicator
Plastic Pin
Note: Some countries may fine vessel owners for causing false alarms. The permanent breakage of the
Activation Indicator Plastic Pin is a positive indication of a manual activation.
5.7 Manual Activation without Deployment
The beacon can be activated while still in its bracket by placing the thumb switch in the ON position. Activation
by this method overrides all sensors and turns the beacon “ON.” The caution note above still applies.
5.8 Deactivation
If manually activated, return the thumb switch to the “OFF” position.
If automatically activated: remove the beacon from the water. The beacon normally takes up to 12 seconds
to deactivate, or place the beacon back into the release bracket.
If the beacon continues to operate after it has been deactivated, remove the four screws holding the unit
together and unplug the battery to disable the unit. Return it to a service center for repair.
5.9 Full Functional Self Test
General Instructions
Please read all instructions before performing any of the tests. Be prepared to record data from the test.
Beacons may be tested in or out of the release bracket. The homing beacon at 121.5 MHz is inhibited during
self test. It is strongly recommended to perform the full functional self test on the beacon on a monthly basis or
prior to a voyage.
The self-test is initiated by momentarily lifting the thumb switch to a vertical position and holding it in this
position for at least one second (see figure 7). The initiation of the test is indicated by a beep* and the
simultaneous lighting of the green and red LEDs.
TEST SUCCESS FAIL
Initial Test Start
Green, Red LED
Check Data Integrity
Beep,
Green, Red LED
Test stopped
Check 406 MHz Synthesizer
Beep,
Green, Red LED
Test stopped
Check RF Power/Battery
Beep,
Green, Red LED
Test stopped
Successful Test
Green LED, Strobe
Figure 7
*NOTE: The “beeps” are a very high-pitched tone
that many people may not be able to hear.
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