Elettro LEM61211 Gebrauchsanleitung Seite 10

4. CHARGING PROCESS
CHARGE LEDs – Group of 4 LEDs, labelled from left to right 25%, 50%, 75%, 100%. LEDs 25% and
50% are red, LED 75% is yellow and LED 100% is green. These LEDs indicate the percentage of the
charge and when the charge is 100% the charger switches itself to the maintenance charge mode.
FAILURE LED - This orange LED lights up and remains lit in case of reversed polarity. In all other
error cases (low or high voltage), this LED starts blinking together with the charge LEDs.
4.1. RESET
When connected to the power mains, the charger resets itself automatically and remains in standby
mode if no other operation will be carried out by the user.
4.2. STANDBY MODE:
The green LED blinks until a 12V or a 6V mode is selected. In standby mode, the charger is not
supplying any current. To select a charge mode, it is necessary to connect a battery first.
4.3. MODE 6V
This mode is suitable to charge 6V batteries with a capacity higher than 2.2 Ah in normal condition.
Before charging the battery, connect correctly (see connection instructions) the output terminals of the
charger to the battery and press the MODE button to select the 6V mode. Having done this operation,
the corresponding LED will blink and the charging process will start with a current of 1.1A +/- 10%.
If everything is ok, the complete charge process goes on till the battery charger will reach 7.2V +/-0.25V.
When the battery is fully charged the charge LEDs 25%, 50%, 75%, 100% will light up and only a low
maintenance current will be supplied to the battery. Remark: if the battery voltage is among 0.6V +/-0.5V
and 2V +/-0.5V, the charger will not start charging in 6V mode but will switch itself in failure mode, if it is
among 2V +/-0.5V and 7V +/-0.25V, the charger will start charging. If the battery voltage is higher than
7V +/-0.25V, the charger will not start charging but will switch itself in failure mode.
4.4. MODE 12V
This mode is suitable to charge 12V batteries with a capacity higher than 2.2 Ah in normal condition.
Before charging the battery, connect correctly (see connection instructions) the output terminals of the
charger to the battery and press the MODE button to select the 12V mode. Having done this operation,
the corresponding LED will blink and the charging process will start with a current of 1.1A +/- 10%.
If everything is ok, the complete charge process goes on till the battery charger will reach 14.4V +/-
0.25V. When the battery is fully charged the charge LEDs 25%, 50%, 75%, 100% will light up and only a
low maintenance current will be supplied to the battery. Remark: if the battery voltage is lower than 7V
+/-0.25V, the charger will not start charging in 12V mode but will switch itself in failure mode, if it is
among 7V +/-0.25V and 14V +/-0.25V, the charger will start charging. If the battery voltage is higher than
14V +/-0.25V, the charger will not start charging but will switch itself in failure mode.
5. FUNCTION TO RESCUE DEEP DISCHARGED BATTERIES
When the battery is connected to the charger and a charging mode is selected, the appliance detects
automatically the voltage of the battery and in case values are in a range from 2V +/-0.5V to 5.25V +/-
0.5V for 6V batteries and from 7V +/-0.25V to 10.5V +/-0.25V for 12V batteries, the charger will activate
the pulse charging mode. This pulse charging process goes on till the battery voltage reaches a value of
5.25V +/-0.5V or 10.5V +/-0.25V. Once this charge level is reached, the charger will start the initial
charging mode selected by the user and the battery shall be charged quickly and safety. Thanks to this
pulse charging mode, you may rescue most part of deeply discharged batteries. If the pulse charge goes
on for over 6 hours and the voltage of the battery remains below the value of 5.25V +/-0.5V for 6V
batteries or 10.5V +/-0.25V for 12V batteries, the charger will switch itself to failure mode.
6. PROTECTION AGAINST FAULTS
If one of the following faults occurs: short circuit, recover process longer than 6 hours, bulk charging time
longer than 96 hours, open circuit or reversed connection of output terminals, the built-in electronic
switch will turn off the charger and will go in failure mode in order to avoid damages. If the appliance
does not receive any other input, it will remain in failure mode and the corresponding LED will blink to
indicate the error. In addition, in case of polarity reversal, the LED
will light up to signal this type of
error.
7. TEMPERATURE PROTECTION
If, for any reason, the temperature of the charger increases too much during the charging process, the
appliance will reduce its output power in order to protect itself against possible damages.
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