VOLTCRAFT BT-3 Notice D'emploi page 25

process. Simultaneously, the battery state is displayed via three
LED's (green, yellow or red). If in display (4) "-L-" is shown the
battery voltage sank below 7.5 V during the test.
• Please observe the following table, it shows the different battery
conditions:
LED Display
green LED
illuminated
yellow LED
illuminated
red LED
undercharged
Caution!
During the test, the upper unit cover of the tester
gets very hot (with the cooling holes (2)). Let the
tester cool down for at least a minute before you
perform a further test. Never perform more than 3
test within 5 minutes.
C Charging voltage measurement (headlight test)
The charging system of the motor vehicle is tested with this measu-
rement. A sustained under or overcharging of the motor vehicle bat-
tery will inevitably lead to damage. The charge test should be per-
formed (described above) before this test. If the battery is OK, you
can continue the measurement.
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Battery status display:
The battery is insufficiently charged.
The battery is insufficiently charged.
This battery is either empty or defective. If it is a
conventional maintenance-free battery, determi-
ne the acid density for battery with an acid pipet-
te, (for at least 1.20 to 1.22 kg/l). The value
remains under approx. 1.24 kg/l after charging.
The battery is used up (after approx. 5 to 8
years) and must be replaced.
The battery is possibly defective or seriously
and should be replaced.