Technical Data; Dimensions / Weight; Charging Reference Line; Troubleshooting - Truma Mes 350 Module B Gebrauchsanweisung Und Einbauanweisung

Technical Data

Power supply
via the MES 350 Module A2
Charging current mains
Charging current with Module A2
Charging current with Module A2 / A3
arithmetic mean value, electronically controlled according to
the IUoU charging reference line
Voltage mains
DC voltage 12 V on the battery
Charging process
Automatic
Automatic switching mains
Main charging process
OFF at a battery voltage of 14.4 V
After loading phase
10 hours constant 14.4 V for gel batteries / AGM
4 hours constant 14.4 V for liquid electrolyte batteries
Trickle charging
Trickle charging constant 13.8 V
Temperature-dependent control (optional)
The values of the automatic switching device refer to a battery
temperature of 20 °C. If a temperature sensor is used with the
battery II, these values will vary in accordance with the battery
temperature.
High temperature –> reduction of the threshold values
Lower temperature –> higher threshold values
Charging current solar
max. 12 A, 2 solar panels each with 85 W
Voltage solar
14.2 V
Charging current lifter
max. 10 A
Voltage lifter
14.2 V
Monitoring under-voltage
OFF at 10.8 V
ON at 12.5 V
Application
Parallel mode, general charging mode
Temperature
Ambient temperature from -25 °C to +35 °C
During operation, the casing may heat up to around 75 °C
Cooling
By convection
Configuration
In accordance with the VDE provisions and the device
safety law
Use
To charge the batteries with 12 V rated voltage and
a capacity of:
80 Ah – 230 Ah with Module A2
100 Ah – 300 Ah with Module A2 / A3

Dimensions / weight

Casing
Steel plating, galvanized, ventilated
Length
250 mm
max. 23 A, Width
max. 36 A, 140 mm
Height
100 mm
Weight
1.9 kg

Charging reference line

HL = Main charging phase
NL = Afterloading phase
EL = Trickle charging
Fig. 3: Charging reference line (basic curve)
The right to effect technical modifications is reserved!

Troubleshooting

Error
The battery does not charge.
The voltage of the Battery II
has dropped to below 1.5 V
The maximum charging
current is not reached.
The master switch does
not react.
If these measures do not solve the problem, please
contact the Truma Service Centre.
U[V] I[%]
I
100
14.4
13.8
50
U
0 0
HL NL E L t[h]
Rectification
Check all connections from
the device to the battery, en-
sure that they are connected
to the right terminals. Check
all fuses and the mains sup-
ply connection.
Connect the caravan to
the traction vehicle via the
13-pin coupling plug.
Start the motor and let it
run for approx. 30 seconds.
Battery voltage rises above
1.5 V. The charging process
starts automatically.
The device is too warm, en-
sure better ventilation of the
device.
Disconnect the device from
the mains supply! Pull out
the mains plug and discon-
nect the battery. Reconnect
the battery and reconnect
the device to the mains sup-
ply. Press the master switch
again.
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