Installation and user’s manual
Description:
The BS microprocessor controlled battery separator
is used in multi-batteries systems like on boats,
caravans and campers. It supervises the primary
battery state of charge and therefore avoids starting
problems. The BS can also be used as a voltage
dependent switch.
The working principle is the following: the BS lets the
primary battery being recharged by the alternator until
a voltage of 13.2V (26.4V) during at least 7 seconds is
reached. Then the two batteries are put in parallel by
the contact of the relay. The secondary users are
normally connected to the auxiliary battery. The relay
opens when the batteries voltage reaches 12.8V
(25.6V) during at least
60 seconds. This way the
starter battery remains charged.
If a battery charger is connected to the auxiliary battery
and this battery reaches a voltage of 13.2V (26.4V)
during at least 7 seconds, the relay closes and
charges at the same time the starter battery. This is an
advantage if the vehicle remains stationary over a long
period of time.
If the battery charger is disconnected and the battery
voltage reaches 12.8V (25.6V) during at least 60
seconds, then the BS separates again the two
batteries.
Start assistance:
The BS has an additional connection enabling an assis-
tance to the starting. If the connection 85 (BS 100) or
86 (BS 140) is connected to the starter contact, the BS
contact closes and this way the 2 batteries contribute to
the engine start.
Cautious
when this function is used very high currents
may go through the relay contact by the start of big
engines. These high currents may damage the contact
of the
BS
if they exceed its nominal current.
Voltage dependent switch:
In some cases it is needed to have a powerful DC
source supply but only when the engine is running.
The BS allows also this kind of installations. It is
sufficient to simply connect the primary battery to the
connection 30, the system earth to the connection 86
(BS 100) or 85 (BS 140) and the positive of the equipment
to supply to the connection 87. When the engine runs a
voltage of 13,2V (26,4V) during at least 7 seconds is reached,
the equipment is then powered thru the contact of the BS.
Protection against overvoltages:
The BS has also a function enabling to protect the
battery and the appliances that are connected to it
against an overvoltage generated, for instance, by a
defectuous alternator. As soon a
s a voltage higher
than 16 V (32V) is detected, the contact of the BS
opens immediately.
Installation:
To implement the function « start assistance », a fuse
protected connection has to be carried out between
the connection 85 (BS 100) or 86 (BS 140) and the contact
o f t h e s t a r t e r c o n t a c t .
A short-circuit between the positive and negative
of the batteries can damage your system. Make
sure that the connections are properly done!
Technical specifications:
Supply: Automatic detection 12/24 V
Max. current: 100 A (BS 100) or 140 A (BS 140)
Battery connection: M6
Other connections: Faston 6,3 mm
Cable cross section: 25mm
2
Consumption OFF: 12V=1.5mA / 24V=1.5mA
Consumption ON: 13.5V=360mA / 27V=160mA
Minimum chargetime: 60 seconds
Fast opening: < 11.8V (12V) / 23.6 (24V)
after 4 seconds
Connections:
30 Positive terminal of the primary battery (starter
battery)
85 Ignition switch (only if « start assistance » is
needed)
86 Negative terminal (Cautious this connection
must always remain connected via a fuse of 3A)
87 Positive terminal of the auxiliary battery (If the
function « voltage dependent switch » is
needed, connect the equipment positive here)
86 for BS 140
85 for BS 140
