User's Manual

82819_UM_ 40SMkII_E 21
3.1.2 BATTERY MODULE
The Battery module supplies the EPIRB module with 7.2 VDC power to keep the EPIRB transmitters
active for 48 hours when activated, and for test sequences. The battery module consists of four SAFT
LSH14L Lithium-Thionyl chloride (Li-SOCL2) batteries connected in series and is attached inside the
lower house. The housing is made of polycarbonate. In the lower part of the housing there is one reed
contact, which is activated by a magnet in the release mechanism. This is the safety switch, which
prevents the seawater contacts from activating the beacon while placed in the mounting bracket. There is
a brass weight, which gives stability while floating.
The seawater contacts are also mounted in the battery module, and are connected to the electronic unit via
the battery connector.
The batteries are mounted in a plastic battery holder.
3.1.3
EQUATOR RING WITH GASKET
The two parts of the housing are held together by the equator ring, and is locked with a U-shaped bolt of
stainless steel and a split pin. Between the two halves of the housing there is a gasket made of neoprene.