Specifications

INSTALLATION
EN / Mass Charger 24/15-2; 24/25-2; 24/25-2 DNV / March 2014 11
4.6 CONNECTION OF SECOND BATTERY
(3A OUTPUT)
The battery chargers are standard equipped with a second
charge output of 3A in order to give a small second battery
set like a starter battery a maintenance charge. The
maximum charge current of the second output is 3A, which
comes from the main output.
 Use 2.5 to 4 mm
2
cable for connection.
 Connect the minus of the second battery to the minus
of the main battery.
 Connect the plus of the second battery to the +3A
terminal of the Mass Charger (see fig. 7 and 8).
 Integrate a 10A slow blow fuse in the plus cable.
4.7 TEMPERATURE SENSOR
The standard temperature sensor is provided with 6 m
cable and a double-sided tape for easy installation.
Determine the warmest place on the battery set and make
it clean and grease free. Remove the piece of paper from
the tape and stick the sensor on the battery. Plug the
modular cable into a terminal at the right of the Mass
Charger (see fig. 7). It is not necessary to shorten the
cable. When you want to shorten it anyway please notice
the polarity of the plug and use the old connector as an
example.
4.8 VOLTAGE SENSE
To shorten the charge time substantially, the battery cable
losses can be compensated by using the sense function.
Use 0,75 mm
2
, preferably red and black wire and secure
these with fuses of 2A slow blow. Connect the wires with
the two upper terminals of the green connector at the right
side of the cabinet (see fig. 7). Pay good attention to the
polarity of the wires, red on +S and black on -S. Now
connect the other side of the wires: black on the minus of
the battery and red on the battery side of the Mass
Charger fuse.
4.9 ALARM FUNCTION
The battery charger is equipped with a potential free
contacts alarm relay, see figure 7. The alarm function has
two modes: standard (factory setting) and DC alarm mode
(continuous mode).
4.9.1 Standard alarm mode
In this mode the relay responds to all fault conditions that
the Mass Charger can detect such as: no AC input
voltage, too low DC voltage, voltage sense failure,
temperature sense failure.
4.9.2 DC alarm mode
To enable this mode a DIP switch setting needs to be
changed (switch 1 and 2 at ON). The alarm now works as
a DC alarm and responds to the battery voltage only.
Note: In the DC alarm mode the electronics stay active
permanently and drain a very small current of ± 25mA,
also when the Mass Charger is switched off.
4.10 DNV VERSION
The Mass Charger 24/25-2 DNV is equipped with a larger
connection compartment that offers more room for the
cabling. Refer to section 9.2 Dimensions for more
information on the larger DNV housing.
4.11 CONNECTION OF ACCESSORIES
The battery charger is equipped with several terminals for
accessories. Cable to connect the accessories is not
delivered as a standard. Accessories can be plugged in at
all times. The standard remote panel must be connected
with an appropriate communication cable.
Figure 6: Standard remote panel C3-RS,
art. no 70403040