ACR Electronics 2774 Technical Information PDF herunterladen (Seite 12)

Y1-03-0148-2 Rev. H

5.3 Configuration Overview

Category 1 beacons are designed to be automatically deployed and activated. The beacon may also be hand

held on the deck of vessels, or floated in water and attached to a raft or life vest with the lanyard provided.

Category 2 beacons are designed to be manually deployed from the bracket.

The beacon is designed to operate best while floating in water. Hand held operation should be avoided

when possible. Do not operate inside life raft or under any similar cover or canopy. Use the lanyard to attach

beacon to life raft or person after deployment. Caution - Do not attach lanyard to bracket or vessel. Both

models of the beacon can be deployed and activated manually.

Changes in the laws governing beacons have mandated that the beacon be ready at all times. If certain criteria

are met, the beacon will begin transmitting. The beacon is equipped with sensors to determine if it is in water

(a deployment condition). Category 1 and 2 brackets both contain a magnet that interacts with other sensors in

the beacon to prevent activation if it is wet (also a deployment condition).

Two conditions must be satisfied for the beacon to automatically activate:

1) It must be out of its bracket

2) It must be in the water

Note: Either condition by itself will not automatically activate the beacon.

The beacon is designed to allow the user to perform periodic testing while the beacon is in the release bracket.

Category 1: Place the beacon into the release bracket with the spooled lanyard inward. The beacon should

now be firmly held in the Category 1 bracket and ready for automatic deployment. Do not attach lanyard to

bracket.

Category 2: Place the beacon into the bracket with the spooled lanyard inward. The beacon should now be

firmly held in the Category 2 bracket and ready for manual deployment. Do not attach lanyard to bracket. Use

the strap and buckle to secure the beacon. The strap should be adjusted tight against the beacon; tight enough

so that it is almost difficult to engage the buckle. This should be checked periodically.

5.4 GPS Acquisition with the RapidFix™ (External GPS)

The RapidFix™ is fitted with an optical interface to connect with an external Global Positioning System

receiver that will determine the latitude and longitude of its position to be transmitted to the emergency system.

When the RapidFix™ is coupled to a working external GPS receiver, it immediately begins downloading data.

Once valid position data has been obtained, the beacon will attempt to update the positional data every 20

minutes. The RapidFix™ will always store the last valid positional data it received from the external GPS

receiver, even if it is unable to obtain updated data. It will update this data if and only if it receives new good

positional data from the external GPS receiver.

5.5 Automatic Deployment and Activation - Category 1 Beacons

Automatic deployment and activation occurs if the vessel sinks and the hydrostatic release device frees the

beacon from the bracket allowing it to float to the surface. Built-in sensors detect that the beacon is no longer

in its bracket and is in water. This condition will automatically activate the beacon.

NOTE: TRANSMISSIONS OF THE 121.5 MHZ AND 406 MHZ SIGNAL WILL NOT OCCUR UNTIL 50

SECONDS AFTER ACTIVATION.

5.6 Manual Deployment and Activation

The Category 1 beacon can be manually deployed by removing the retaining pin, removing the cover, and then

removing the beacon from the bracket. Once removed, both the Category 1 and Category 2 beacons can be

activated by placing the beacon in water OR by lifting the thumb switch to a vertical position, sliding it toward

the antenna and pushing down to the opposite side of the beacon. Activating the beacon in this manner breaks

off the Activation Indicator Plastic Pin and allows the switch to properly seat, showing the " ▌ " symbol (ON).

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