Dometic Buttner MT LB50 - Cleaning and Maintenance

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• If the voltage falls below the value for “Reduction
of charging power” (e.g. due to high loads), the
charging booster reduces the charging power
to relieve the starter circuit. The charging power
is always at least 3 % of the possible charging
power.
Setting the night mode
In night mode the display panel is darkened. All
LEDs on the display panel except the “Current”
LED are switched off.
➤To activate or deactivate the night mode press
the On/Off button on the display panel once.
✔ The “Current” LED lights up dimly red.
Cleaning and maintenance
A
➤Occasionally clean the device with a soft, damp
cloth.
➤Regularly check live cables or lines for insulation
faults, breaks or loose connections.
DIP switch
position (gray)
Description
Function selection for control via
the charging voltage at the start-
ing battery.
• Increase of charging power at
“START+” terminal > 13.5 V
• Reduction of charging power
at “START+” terminal < 13.2 V
• Switch-off threshold: 13.0 V
(30 s)
Note: Connect the D+ terminal
to the "VS+" terminal via a wire
jumper.
Function selection for control via
the charging voltage at the start-
ing battery with lower switching
threshold.
• Increase of charging power at
“START+” terminal > 13.3 V
• Reduction of charging power
at “START+” terminal < 13.0 V
• Switch-off threshold: 12.8 V
(30 s)
Note: Connect the D+ terminal
to the "VS+" terminal via a wire
jumper.
Function selection for control via
the D+ signal of the alternator or
the ignition lock signal
(terminal 15).
• Increase of charging power at
“START+” terminal > 12.5 V
• Reduction of charging power
at “START+” terminal < 12.2 V
• Switch-off threshold: 12.0 V
(30 s)
Function selection for control via
the D+ signal of the alternator or
the ignition lock signal
(terminal 15), suitable for vehicles
complying with Euro 6, 6+ stan-
dards with highly fluctuating
alternator and starting battery
voltages.
• Increase of charging power at
“START+” terminal > 11.7 V
• Reduction of charging power
at “START+” terminal < 11.4 V
• Switch-off threshold: 11.2 V
(30 s)
NOTICE! Damage hazard
• Never clean the device under running
water or in dish water.
• Do not use sharp or hard objects, abra-
sive cleaning agents or bleach during
cleaning as these can damage the
device.
DIP switch
position (gray)
Description