Westfalia 83 63 34 Instruction Manual page 24

Operation
Temperature Compensation
A temperature sensor automatically adjusts the charging voltage if the
temperature deviates from the range of 20 °C – 45 °C. At higher environmental
temperatures the output voltage will be lower. Freezing conditions are handled
by a higher output voltage.
Voltage Compensation
Because of a minor voltage drop caused by the internal resistance of the
cables, the actual voltage at the clamps of the battery can be a little bit lower
than the output voltage of the charger. A special circuitry inside the charger
monitors the true input voltage of the battery and adjusts the output voltage of
the unit accordingly. This maximizes the charging efficiency.
Reverse-Polarity Protection
This charger offers reverse-polarity protection. In case a revers polarity is
detected, the red error indicator LED (15) lights up and the charging process
will not start. If this happens, unplug immediately from the power mains.
Connect the red battery connection clamp (5) to the plus terminal (+) of the
battery and the black connection clamp (6) to the minus terminal (-) of the
battery. Then re-connect the charger to the power mains and the charging
process will start.
Short-Circuit Protection
Should you accidentally cause a short-circuit with the crocodile clamps whilst
the mains power is on, the unit will not perform charging. Unplug the unit,
disconnect and start the process again. Pay attention not to touch the clamps
together.
If a short-circuit is caused while the unit is in power supply mode, the red error
indicator LED lights up and a warning sound can be heard. Clear the short-
circuit. Then press the mode selection button (9) to restore power supply.
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