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Operation
The display probes of the gauge contact clamps out to the right
after the polarity connection to the positive terminal (+) and the neg-
ative terminal (-) of the battery to be checked and at sufficient
capacity. The displayed voltage value shows the (uncharged) no-
load voltage of the battery. With the toggle switch the burden is
turned off, the battery is charged to 100 A. The battery voltage is
displayed under burden now. The switch must remain on for
approx. 10 s during the measurement.
Measurement procedure
A) Battery charge test
With this test, it can be determined whether the battery has suffi-
cient capacity to start the engine reliably, also under unfavorable cli-
matic conditions. The battery will be charged with approx. 100 A
during this measurement. If the battery voltage remains relatively
constant at > 12 V during the measurement period (approx. 10 s),
then the battery is functioning correctly. If the voltage falls in this
short period, then the battery is either uncharged or defective.
- Start the engine, turn off all power loads (excluding the clock
and clock memory), and remove the ignition key
- 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.
- An "no-load voltage" is displayed in the polarity connection.
The battery voltage of approx. 12.4 V is required before per-
forming a charge test. After performed charge the no-load volt-
age is for this one
The battery less than approx. 12.4 VDC, so is still already dam-
aged battery. Nothing happens.
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If there is no display, probably one of the clamps is loose or
does not have any contact.
- Move the toggle switch to the right for for approx. 10 s to start
the charge test.
- Refer to the following table. Here is listed the minimum voltage
for the battery:
Display
Battery status:
green area
The battery has a sufficient
(6 or 12 V)
capacity
Yellow area
The battery is insufficiently charged. This
battery is either empty or defective. If it is a
conventional maintenance-free battery,
determine the acid density for battery with
an acid pipette, (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.
With a maintenance-free battery, the charge
remains without a test for acid density.
Red area
The battery is possibly defective or seriously
uncharged and should be replaced.
Caution!
During the test, the upper unit cover of the tester
gets very hot (with the cooling slots). 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.
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