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Operating Instruction
Introduction
The Multi functional auto tester is an equip-
ment used to test the automotive electrical
system within 6 - 24 volts. In order to save
the testing hours for the automotive electri-
cal system, The Multi functional auto tester
is designed to testing the system without re-
connection between the vehicle battery and
the testing components.
It contains the following functions:
1. Determine the polarity and circuit
circumstance (short! open).
2. Activating the components with positive
or negative current without jumper wire.
3. Testing the voltage and continuity of the
circuit.
4. Illumination
5. Locate missing cylinders.
6. Measuring frequency of the high-tension
ignition pulses and we could calculate the
rotational speed of engine according to
the measured frequency.
7. Peak detection.
8. Testing the voltage of the circuit and the
voltage reading will be indicated on the
LCD display within 1/1 oth of a volt.
Eventually, for the testing and safety purpose,
the multi functional auto tester contains short-
circuit protection. The short-circuit protection
system contains the recoverable fuse, and so
the technician will not waste the fuses during
the testing. The extension cable with the multi
functional auto tester is long enough for a
technician to test the who ie system for the ve-
hicle, therefore, the technician do not have to
search for ground connection constantly.
7
Illumination
Since some of the testing circuit will be
shadowed during the testing, the multi func-
tional auto tester provides the illumination
for you convenience. The illumination will
automatically turned on as the technician
hook up the multi functional auto tester with
vehiele battery.
WARNiNg
When current is provided to the the multi
functional auto tester , spark may be occurred
when the tip contacts with ground or certain
circuits. Therefore please do not operate the
multi functional auto tester around flamma-
ble. And please do not operating the multi
functional auto tester with 110/220 volt house
voltage as it is only for 12 - 24 volt systems.
For example:
1. Activate the components with automotive
electrical system disconnected.
2. Activate the components with positive
voltage only.
3. Activate the components with negative
voltage only.
4. Trailer light Test
If the circuit breaker of the short circuit
protection has tripped, please do not con-
tact your hand to the probe and extended-
probe immediately.Because the probe
and extended-probe is very hot after the
circuit breaker has tripped.
95980781
EN
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