Disconnect; Measuring Standby / Battery Voltage; Revitalising; Program Selection - Kompernass ULGD 3.8 A1 Operation Manual

Disconnect

♦ Disconnect the appliance from the mains supply.
♦ Remove the negative pole clamp (black)
from the negative pole of the battery or from the
bodywork.
♦ Remove the positive pole clamp (red)
the positive pole of the battery.
Measuring STANDBY /
Battery voltage
After connection to the grid, the appliance is on
STANDBY. The standby display
the clamps are connected, the battery voltage is
shown in the LCD (voltage display
of the condition display
If the voltage is below 3.8 V or above 15 V, the
battery will not be charged. The display briefly
shows the error message „Err".
The appliance goes on standby.
6 V battery:
If the voltage range of the battery is measured
as between 3.7–7.3 V, only program 1 can be
selected.
12 V batteries:
If a battery is recognised in the critical voltage
range of between 7.3–10.5 V, the appliance
checks whether a fully charged 6 V battery, or a
discharged 12 V battery is present. After pressing
the program selection button
the appliance carries out a control measurement
for about 90 sec.
The display shows:
If after about 90 sec. between 7.3–7.5 V are
detected, the 12 V battery is defective.
The appliance goes on standby.
ULGD 3.8 A1
from
lights up. When
). The segments
are empty.
to select a program,

Revitalising

If after about 90 sec. between 7.5–10.5 V are
detected, a 12 V battery is present.
Charging starts with a pulse charge for revitalis-
ing. The voltage display
are reached, the appliance switches to the other
charge steps.
Revitalising is the same for all the 12 V charge
programmes.

Program selection

NOTES
► If a battery is detected in the voltage range of
between 3.7–7.3 V, the programmes 2–3–4
can not be selected. The charging process takes
place automatically. Depending on the selected
program, the characteristic charge curve is
monitored for voltage, time and temperature.
Included are the diagnostics program, revitalis-
ing mode and retention charge.
(See principle representation program 3 Fig. C)
Program max. (V)
1 6 V 7,3 V
2 14,4 V
*
14,4 V
3
*
4 14,7 V
*
Program 1 „6 V" (7,3 V / 0,8 A)
For charging 6 V batteries with a capacity of less
than 14 Ah.
♦ Press the program selection button
program 1. The symbol „6 V" is displayed on
the LCD. During charging, the charge display
flashes and shows the progress of the charge
procedure (1–4 bars). When the battery is fully
charged, the condition display
The flashing stops and the appliance automati-
cally switches to retention charge.
Program 2 „12 V" (14,4 V / 0,8 A)
For charging 12 V batteries with a capacity of less
than 14 Ah.
flashes. Once 10.5 V
max. (A)
0,8 A
0,8 A
3,8 A
3,8 A
, to select
shows 4 bars.
│ 13 ■
GB