ACR Electronics 2774 Información técnica descargar pdf (Pagina 15)

Y1-03-0148-2 Rev. H

accomplished by two methods: first, by always leaving a properly functioning GPS connected to the

RapidFix™ before activation and second, by connecting a properly functioning GPS with a valid position fix

and allowing sufficient time to acquire valid GPS position data. This will take a nominal 20 minutes if old GPS

position data is stored in the memory of the RapidFix™. If there is no old GPS position data present, the

beacon will acquire current data within a minute of being connected to a GPS with a valid position fix. You can

force the RapidFix™ to update its position at any time by connecting to a GPS with a valid position fix and

initiating the Self-Test (see 5.10). If valid GPS position data is not available, the beacon will not clear the

previously stored GPS position data. In this case, call ACR Customer Service at +1 (954) 491-3933 for

instructions on how to reset the RapidFix™ with the beacon’s default message.

Testing the GPS Interface

Connect the optical interface plug to the RapidFix™ bezel and allow sufficient time for the GPS receiver to

acquire valid GPS position data (usually less than 1 minute; but it can take up to 20 minutes). Lift the thumb

switch to the vertical (Self-Test) position and release. Your RapidFix™ will confirm that it has acquired valid

GPS data by emitting a beep along with a flash of the red and green LEDs. This will occur approximately 2.5

seconds after the Self-Test.

Updating GPS Position Data

When the beacon is properly connected to a functioning and compatible GPS receiver, GPS position data is

automatically updated about every 20 minutes, while valid GPS position data is present UNLESS the beacon is

activated. The operator can force the acquisition of new GPS position data, by executing a Self-Test with the

beacon connected to a GPS with a valid position fix. This bypasses the normal, programmed, waiting time of

20 minutes for the automatic update of GPS position data. Once the RapidFix™ has completed the Self-Test

sequence by emitting the beep and flash of red and green LEDs, as described in 5.10, the RapidFix™ will

request and acquire new position data from the GPS. This can take a nominal 15 seconds or up to one minute.

NOTE: While the beacon is not activated, GPS position data will be received and continuously stored by the

RapidFix™. No GPS position data updates will occur while the beacon is activated.

A new RapidFix™ is programmed with the GPS position data set to “default.” This default GPS position data

indicates, upon activation, to the satellite system that the beacon has no valid GPS position stored in memory.

Once a functioning and compatible GPS receiver is properly connected to the beacon, this “default” data will

be replaced by valid GPS position data, as described in the previous sections.

SECTION 6 – CARE AND MAINTENANCE

6.1 Routine Maintenance

At least every ninety days, the float free mounting bracket and beacon should be inspected for deterioration

and/or residue buildup that may affect the function of the beacon or automatic release. Part of the visual check

includes checking the antenna for tightness. Clean the beacon and the mounting bracket to remove residue

buildups. It is recommended that the beacon and mounting bracket be wiped with a damp cloth.

Carefully inspect the beacon case for any visible cracks. Cracks may admit moisture, which could falsely

activate the beacon or otherwise cause a malfunction. Any cracking observed should be immediately referred

to ACR for evaluation by calling 1-800-432-0227 ext. 2155 in the US, or +1-954-981-3333 ext 2155 elsewhere.

6.2 Battery Replacement

The battery must be replaced by the date indicated on the beacon or every five (5) years, whichever occurs

first. At each inspection, check the time remaining until replacement is required. The battery should be

replaced if the beacon has been activated for any use other than the self test.

Always refer all long life battery replacement and other beacon service to a factory authorized service center.

Battery replacement includes servicing the beacon by replacing all o-rings, testing the water seal and the

electrical properties.

NOTE: There are no user serviceable items inside the beacon. DO NOT OPEN THE BEACON UNLESS TO

DISABLE IN CASE OF FAULTY ACTIVATION.

For the nearest location of a Battery Replacement Center, visit our website at www.acrelectronics.com

The beacon may or may not require special shipping instructions due to the lithium batteries and changes in

shipping regulations. Please refer to ACR’s website www.acrelectronics.com for proper shipping instructions.

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