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Operating Instruction
Testing conductivity (continuity test)
Using the probe (positive connection) and
EN
the negative cable, the conductivity and/or
continuity of a conductor or electrical com-
ponent can be tested if this is not connected
to the vehicle electrical system.
If the current is conducted between the wires
or components, the green LED should light
up.
Actuation/triggering
ponents in the case of a de-energised
vehicle electrical system or in the case of
components disconnected from the vehicle
electrical system
Using the probe (positive connection) and
the negative cable, electrical components
such as lamps, electric motors, etc., can be
actuated or triggered.
To do so, proceed as follows:
1. Connect the test lamp's negative cable
to the negative terminal of the component
to be tested
www.herthundbuss.com
of
electrical
com-
2. Apply the probe to the positive terminal of
the component. If the green LED lights up,
the tested component is conductive.
3. If the green LED lights up, please push the
polarity switch forwards and then release
it again shortly afterwards.
If the LED switches from green to red, the
test can be resumed. If the green LED goes
out and the red LED lights up or the short-cir-
cuit protection is triggered, the multi-func-
tion test lamp is overloaded. The causes of
this may be the following:
The component has a short circuit or is
directly connected to earth/the negative
terminal.
The component's current consumption is
too high (above 8 A).
NOTE
When triggered, the device's
short-circuit protection will be au-
tomatically deactivated again after
max. 60 seconds
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