ACR Electronics Mini B300 2766.6 - Manual (Page 10)

6
Y1-03-0167 Rev. B
3.4 OPERATIONAL NOTES
The EPIRB is designed to float on water but will operate best when held upright out of water. An
operational transmission on land should be conducted in an area free of obstructions, which could
absorb RF energy and limit radiation patterns.
Position the antenna straight up and extend (perpendicular to ground) and not pointing toward the
receiving station. Note that the radiation field null occurs directly off the end of the antenna.
Maintain a visual path where possible between the Beacon and the receiver, since beacons
characteristically transmit "line of sight". The Beacon transmits on 121.5 MHz.
SECTION 4 - MAINTENANCE
4.1
GENERAL
The Beacon has been designed for use with a minimum of maintenance required. A checklist is
given in this section, and when accomplished periodically, should help to assure emergency
operation and extended life use.
Caution: Perform all maintenance operations and checks within a screen room, if available, to
prevent inadvertent transmission of emergency signals. If a screen room is not available, use
caution in handling the Beacon during servicing to prevent signal transmission.
4.2 BATTERY CHECK AND SERVICE
1. See Section 5.2 for battery check. Replace Battery Pack immediately after extended use or
emergency.
2. All routine service must be carried out at ACR or by factory authorized personnel at
authorized service centers. In addition to replacing the battery, the o-rings will be replaced and
the EPIRB will be hydro statically re-certified. Please call ACR for the location of your nearest
authorized service center at least 30 days before expiration date. After the warranty period is
over, Battery replacement may be performed in the field. Follow the directions below.
3. The MINI B
300
TM
ILS EPIRB has a dated battery life. When purchasing a new battery, make
sure the battery is fresh. The battery expiry date will be printed on the side of the battery.
4. The battery can be user replaced or returned to a BRC (Battery Replacement Center) for
service. Call (800) 432-0227 for a BRC near you. To replace the battery, follow directions
below.
a. Remove four (4) screws holding the top cap of the Beacon to the case. Use a no. 2 Phillips
screwdriver. Remove top cap and PC board from bottom case being careful not to disturb
any electronic components on the PC board.