6
Y1-03-0136 Rev. C
1.5
Technical Data
Pertinent technical data is listed below:
ITEM
CHARACTERISTICS
Frequency
121.5 MHz
Power Output
Minimum 75 mW during 24 hours
operation
Operating Life
24 hours minimum at -10°C,
(-14°F) longer in temperate climates
Battery
Lithium, 6 volt Duracell DL223A,
(or equivalent).
Sold with Beacon.
Rated replacement life: 10 years.
Emission
Type A3X
Modulation
Downward sweeping tone between
1600 and 300 Hz at 2 to 4 sweeps
per second
Frequency
± 3.5 kHz (Crystal controlled)
Stability
Operating
-20°C to +55°C (-14°F to +131°F)
Temperatures
Activation
Manual “ON-OFF” switch
Size
127mm x 66mm x 41mm (5.0"H x
2.6"W x 1.6"D) excluding antenna
Weight
215 g (7.6 ounces)
Attachments
Lanyards, Hanked and Wrist
7
Y1-03-0136 Rev. C
SECTION 2 — INSTALLATION
2.1
General
The
ACR/MINI B300
M
Beacon has been designed for multi-
purpose installation for survival use, personnel, rafts, floats and
survival craft. It should be carried with you or stowed where it
will be readily available in an emergency.
2.2
Battery Installation
1.
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.
2.
Remove old battery and place new battery in battery clip
with groove side of battery down and flat side of battery up.
Caution: Make sure flat side of battery is up. Otherwise, the
polarity of the battery would be reversed and damage to the
battery will occur. The battery also poses a possible fire,
explosion, or burn hazard when placed in the battery clip
upside down. A semiconductor diode protects the electron-
ics from damage due to battery reversal.
3.
Put the battery expiration date on the flat side of the battery
and on the EPIRB case with ACR part no. A1-20-0857 or
equivalent permanent shield label.
4.
Grease the top cap o-ring with Dow Corning number 4
Silicone Grease, ACR Part no. A2-09-0069.
5.
Replace the four (4) screws holding the top cap to the
bottom case of the Beacon. Make sure screws are tight but
do not use excessive torque which could strip the threads in
the top cap.
2.3
Battery Date Code
A typical Duracell DL223A battery has a date code of 6J1313.
The first alphanumeric character of the code is always a number
representing the last digit of the year of manufacture. The
second alphanumeric character of the code is always a letter, the
position of which in the alphabet represents the number of the
month of manufacture. That is: A represents January, B repre-
sents February, C represents March, etc. The next two alphanu-
