Hella 10 Automatic Notice D'emploi page 9

5.3 With the battery in a fully discharged
state, a high charging current will be
indicated on the ammeter. As the battery
is charged, the charging current will get
smaller until finally only a slight current
flows which maintains the charge. The
charging current is regulated
automatically which means that the
battery cannot be overcharged.
5.4 The state of charge of the battery can
be obtained by measuring the electrolyte
density with a hydrometer.
Warning: The battery acid is extremely
caustic.
Electrolyte density values:
1.28—battery fully charged
1.21—battery half charged
1.14—battery discharged
5.5 If the charging current does not get
smaller as it should, the battery is
defective, e.g. short-circuit between cells,
battery is very old.
6.0 Special instructions
6.1 The protection switch protects the unit
in the event of overload, shortcircuited
terminals or incorrect polarity. The
protection switch should trip at a charging
current of 8 A, to protect the rectifier, the
electronic charging control and the
transformer from being damaged. The
actuation time for the protection switch
may vary depending on the overload.
6.2 If an extremely discharged battery
also causes the protection switch to trip
in the 8 A stage, switch the protection
switch back on.
If the protection switch trips repeatedly;
do not repeat charging operation. The
cause may be a defective battery.
6.3 When the charger is connected a
reverse current of approx. 0.12 A is
drained from the battery in the event of a
power failure, when the power switch is
switched off or when the protective switch
trips. This value
increases to approx. 0.5 A when the work
lamp is switched on. The battery can be
discharged by this reverse current.
To prevent this, the charger should be
disconnected from the battery.
Automatic electronic charger for
continuous use in safety.
The electronics switch the charging
process off when the cell voltage at the
start of gassing is reached.
6.4 Change fuse (230 V - 15 A) as shown
in the illustration.
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