Telwin ST300 Manual De Instrucciones página 11

corresponding LED lights up and essential vehicle services
will be powered. This function can also be activated
simultaneously with battery charging, by enabling the
"CHARGE" function.
The CHARGE function is used to charge the battery, initially
at constant current using the previously made setting, for a
maximum period of 10 hours. At the end of this period, if the
battery voltage has not reached a given level (stored in the
microcontroller) a further 2 hours will be added and then the
battery charger will switch off. If the battery charger reaches
the end-of-charging voltage before the 10 hours charging
time preset in the control circuit, the battery charger will
switch off without adding the two hours as indicated above.
If the battery voltage is particularly low a fixed current of 2A
will be supplied until 1.5 V/e is reached.
The START function is used to start the engine at
CONSTANT VOLTAGE with cycles lasting "5 sec ON" and
"20 sec OFF". The phase during which it is possible to start
the engine is indicated by the row of "CHARGE" LED's
flashing .
The 20 sec pause is indicated by the row of LED's switching
off.
(CHARGE) Selecting the Charging Current:
This key is used to select the charging current level in
"CHARGE" mode.
The available charging current settings are:
2 / 5 / 10 / 20 / 30 A.
When positioned on "START", the maximum available
current is 170A. The start phase can be recognised by
watching the current value on the display.
(DISPLAY) Current/Voltage indicator :
This key can be used to select 2 different indicators:
- "I", displays the current supplied in Amps, both when
charging ("CHARGE"), and in "START" mode.
- "V", in this position the display shows the output voltage to
the battery in Volts.
ST 500-300
(ON) Switching on:
This key is indicated with an "I", and allows the battery
charger to output power to the battery.
IMPORTANT:
Before pressing this button make sure you have already
made all the desired adjustments.
If the "START" function has been selected, the battery
charger will start to supply a current at the level the vehicle
requires for starting.
(OFF) Switching off:
This key, indicated by "O", switches off the current to the
battery/ies in charging or start mode.
It is used to reset the battery charge if general alarms are
triggered.
WARNING: The battery charger is still powered.
(E) Battery charge status indicator:
The three LED's (FIG. B-C (row E)) indicate the battery
status by reading its voltage. The top LED indicates a
charged battery, with a battery voltage reading greater than
or equal to the end-of-charging voltage. The middle LED
indicates that the battery is still able to receive current and,
lastly, the bottom LED indicates that the battery is flat.
5. INSTALLATION
POSITIONING THE BA TTERY CHARGER
- During operation, position the battery charger on a stable
surface and make sure that there is no obstruction to air
passage through the openings provided to ensure
sufficient ventilation.
- Install the battery charger on a horizontal surface with a
FIG. B-C
solid base.
CONNECTION TO THE MAIN SUPPLY
- The battery charger should be connected only and
exclusively to a power source with the neutral lead
connected to earth.
Check that the mains voltage is the same as the voltage of
the equipment.
- Check that the power supply is protected by systems such
as fuses or automatic switches, sufficient to support the
maximum absorption of the equipment.
- The connection to the main supply has to be made using a
suitable cable.
- If you put an extension to the primary cable, the section
should be adequate and, in any case, never less than
that of the cable supplied.
- You always have to earth the equipment with the
yellow/green wire contained in the main cable, indicated
by the label ( ), while the other two wires should be
connected to the mains.
6. OPERATION
BEFORE CHARGING
NB: Before charging check that the capacity of the
battery (Ah) which is to be charged, is not inferior to that
reported on the data plate. (C min)
Follow the instructions, taking great care to respect the
order given below.
- Remove the caps of the battery (if present) to allow
release of the gases produced during charging.
- Check that the level of the electrolyte covers the plates of
the battery. If these are not covered add distilled water and
cover them up by 5-10 mm.
_________________________________________________________________________________
WARNING: TAKE THE GREATEST CARE DURING
THIS OPERATION AS THE ELECTROLYTE IS A HIGHL Y
CORROSIVE ACID.
_________________________________________________________________________________
- Please remember that the exact charge status of the
battery can only be determined by using a densimeter
which allows measurement of the specific gravity of the
electrolyte the following indicate approximate density
values for the solute (kg/l at 20°c):
1.28 = charged battery,
1.21 = half-charged battery,
1.14 = flat battery.
_________________________________________________________________________________
WARNING: When handling the cables, make sure
that the "OFF" LED on the front panel is lit up.
_________________________________________________________________________________
- Check the battery voltage and make sure that the settings
on the battery charger panel are compatible with the
specifications for the battery to be charged.
- Check the polarities of the battery terminals: positive for
the + symbol and negative for the - symbol.
NOTE: if the symbols are indistinguishable remember that
the positive terminal is the one not connected to the
vehicle chassis.
- Connect the red charge clamp to the positive terminal of
the battery ( + symbol).
- Connect the black charge clamp to the vehicle chassis, at
a safe distance from the battery and the fuel pipe.
NOTE: if the battery is not installed in the vehicle, connect
the clamp directly to the negative terminal of the battery (-
symbol).
CHARGING
Power the battery charger by inserting the power supply
cable into the mains outlet.
Power the battery charger by turning the switch to ON.
Position the battery charger to ON by pressing the (I) key
on the front panel.
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