ACR Electronics 406 EPIRB, NOAA Manuale di supporto al prodotto - Pagina 8
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4.2
Configuration Overview
The GlobalFix™ beacon (Product No. 2742) Cat. 1 is 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. (Product No. 2744 Cat. 2 is designed to be manually deployed from its 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 GlobalFix™ beacon can be deployed and activated manually.
Changes in the laws governing beacons have mandated that the beacon be armed at all times. If certain
criteria are met, the beacon will begin transmitting.
The beacon is equipped with sensors to detect when it is no longer in its bracket (a deployment condition) and
other sensors to determine if it is in water.
Two conditions must be satisfied for the GlobalFix™ 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 GlobalFix™ is designed to allow the user to perform periodic testing while EPIRB is in the release bracket
to assure a functioning beacon.
Place the GlobalFix™ Cat. 1 (Product No. 2742) into the release bracket with the coiled lanyard inward. The
beacon should now be firmly held in the Cat. 1 bracket and ready for automatic deployment. Do not attach
lanyard to bracket.
Place the GlobalFix™ Cat. 2 (Product No. 2744) into the bracket with the spooled lanyard inward. The beacon
should now be firmly held in the Cat. 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.
4.3
GPS Acquisition
The GlobalFix™ is fitted with an internal Global Positioning System receiver that will determine the latitude and
longitude of its position on the globe to be transmitted to the emergency system. When the GlobalFix™ is
activated, the GPS is immediately turned ON and it immediately begins acquiring data. Initially the red LED
(Light Emitting Diode) flashes once per second to indicate the GlobalFix™ is turned ON and operating. As
soon as the GPS receiver acquires good positional data the red LED stops blinking and the green LED flashes
once per second to indicate that the internal GPS receiver has acquired good positional data. Once good
positional data has been obtained the GPS receiver waits for 20 minutes before looking for new positional data
again. If for any reason a time period of 4 hours passes without the GPS receiver being able to update the last
good set of positional data, the message transmitted by the GlobalFix™ will revert back to default data. At this
point the green LED will stop blinking and the red LED will flash once per second. If at any time after this, good
positional data is obtained, this data will be transmitted, the red LED will stop blinking and the green LED will
flash once per second.
4.4
Automatic Deployment and Activation (Cat. 1)
(Product No. 2742 only) 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 100
SECONDS AFTER ACTIVATION.
Product number 2742 GlobalFix™ (Cat. 1) may be deployed and activated automatically by the built-in
hydrostatic float free release. Once free from the release bracket, the GlobalFix™ will automatically turn on if
the water sensors are wet.
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Y1-03-0157 Rev. F