COMMISSIONING
EN / Alpha alternator - Alpha Pro regulator / June 2007 19
5.2.4 Absorption time adjustment
Factory setting of the absorption timer: 4 hours. This
is appropriate for most systems. Exceptions might
be:
• Extension of the absorption time to do some
intentional overcharging to regain lost capacity.
• Shorten the time if you stop and start the engine
often each day.
• Temporary time reduction for testing purposes
From the factory, the slot from the potentiometer will
be close to the 10 o'clock position. If you require a
different time, you may interpolate the scale and
make a new setting.
Adjustable range: 2 minutes up to 4.5 hours
NOTE!
The new setting will only be activated
after the Alpha Pro was powered up
again.
5.2.5 Temperature compensation
The Alpha Pro regulator is standard delivered with a
battery temperature sensor to compensate the
charge voltage for deviating battery temperatures.
See section 3.2.2 for details. When the temperature-
sensor is not connected the 25°C settings are taken.
High temperatures are destructive to batteries. If
your batteries are regularly subjected to
temperatures above 30°C / 100°F, you should
relocate them or supply forced fresh air ventilation.
5.3 OPERATION
After starting the engine the Alpha alternator and the
Alpha Pro regulator will switch on automatically.
There is no need for adjustment or operation. If the
engine is stopped the Alpha alternator and the Alpha
Pro regulator will switch off again. When switched
off, all LED’s of the Alpha Pro regulator are off
CAUTION!
Never disconnect any wiring during
operation of engine
NOTE!
If a heavy load is switched on during the
absorption or float mode the alternator
will compensate this by increasing its
output power. Note that the regulator will
not change back to bulk mode to start a
new charging cycle. A new charging
cycle will only commence when the
engine is started again.
See section 3.2.1 for explanation of the three step
charging cycle
Although the Alpha alternator is almost
maintenance-free, still moving parts are involved that
need regular service and maintenance. This should
be carried according to the directions in section 6.
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