CAUTIONS
Safe
operation
guidelines
The automobile diagnostic multimeter is designed and
produced in strict accordance with GB4793.1 Safety Require-
ments for Electronic Measuring instruments and IEC61010
Safety Standard, and conforms to double insulation, overvolt-
age standards (CATII1000V, CATIII600V) and safety
standards of pollution level 2. Please operate the instrument
according to usage instructions in the Manual; otherwise, it
might weaken or lose protection function of the instrument.
Before use, check that the insulation layer of the probe is intact
without damage or breakage. If any obvious damage to insula-
tion of probe or instrument shell, or you believe that the instru-
ment cannot work normally, please do not use the instrument
any more.
While using a probe, put your fingers behind its finger protec-
tion ring.
Do not apply voltage above 1000Vrms between instrument
terminal and grounding terminal to prevent electric shock and
instrument damage.
In case of measured voltage higher than DC60V and 42Vrms,
be careful to prevent electric shock.
Before covering up the rear cover of the instrument, it is strictly
forbidden to use the instrument; otherwise there will be risks of
electric shock.
Measured signals are not allowed to exceed the regulated limit
value to prevent electric shock and instrument damage.
It is not allowed to use current to test terminals or voltage at
current gear.
A self-recovery fuse is used inside the instrument. Do not
change the internal wiring of the instrument to avoid damaging
the instrument and endangering safety.
When the battery symbol is shown in red on the LCD, the
battery should be replaced timely to ensure the measurement
For the correct use of the instrument, please read the full text
of this manual carefully before use, especially the “safety
precautions”.
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