Werbung
B Charging voltage measurement (headlight test)
The charging system of the motor vehicle is tested with this mea-
surement. A sustained under or overcharging of the motor vehicle
battery will inevitably lead to damage. The charge test should be
performed (described above) before this test. If the battery is OK,
you can continue the measurement.
Caution!
The engine should be at operating temperature.
Proceed as follows:
- Attach the red clamp (+) to the positive terminal (+) of the bat-
tery and the black, isolated clamp to the negative terminal (-) of
the battery. Gently shake the clamps at the terminal to ensure
contact.
- switch off all power loads (lights, fans, discs, boosters, etc.),
start the engine and hold at a slowing increasing idle speed of
approx. 1500 RPM.
- never press the toggle switch during this measurement
- read the voltage value on the analog display
- now turn on the high-beam headlights and set your fans to the
highest level. The voltage display should change no more than
around approx. 0.1 to 0.3 volts (V).
If the display remains relatively stable, the charging system of your
motor vehicle is OK. If the voltage changes to more than approx. 0.3
V (above or below), you have your charging electrical equipment
(headlights, regulators, brushes, drive-belts, cables, points, cables,
plug connector etc.) examined by a mechanic.
24
charging of lead acid batteries are extremely explosive gasoline-,!
m) Do not leave any tools lying on the battery. Also do not place
the gauge on the battery under any circumstances. Short-cir-
cuit hazard! Avoid contact with battery acid. The corrosive acid
can seriously damage your clothing and "corrode" your skin or
eyes. When measuring an external/deconstructed battery, the
gauge must be held at a distance of at least 0.5 m (= 50 cm)
above the ground.
• If it is ascertained that safe operation is no longer possible, then
the device should be taken out of operation and secured against
accidental operation. Pull out power supply plugs from the plug
socket, cigarette lighter line mark!
It is ascertained that safe operation is no longer possible, if:
the device shows visible damage
the device does not work any longer
after longer storage under unfavourable conditions, or
after heavy transport stresses
Never switch the device on right away if it was taken in from a cold
area to a warm area. The condensation developing as a result can
sometimes destroy the device. Let the switched-off device come to
room temperature. Wait for the condensation to evaporate.
Use of the lead battery tester
Caution!
Never operate the lead battery tester in the open air.
Caution! Always use only the measurement cables
attached tightly for your measurements. Pay atten-
tion to the undamaged isolation of the cables and
the terminal clamps before every putting into opera-
tion.
21
Werbung
Kapitel
