Safety Information; Rules For Safe Operation; Automotive Servicing Safety Guide - KNOVA KN 8056 Manual

Safety information

CAT.II: Local level, appliance, PORTABLE
EQUIPMENT etc., with smaller transient
overvoltages than CAT. III
CAT III: Distribution level, fixed installation, with
smaller transient overvoltages than CAT. IV.
Use the multimeter only as specified in this
operating manual, otherwise the protection
provided by the multimeter may be impaired.
International electrical symbols used on the
multimeter and in this operating manual are
explained on page 9.

Rules For Safe Operation

WARNING
To avoid possible electric shock or personal
injury, and to avoid possible damage to the
multimeter or to the equipment under test, adhere
to the following rules:
• Before using the multimeter inspect the case. Do
not use the multimeter if it is damaged or the
case (or part of the case) is removed. Look for
cracks or missing plastic. Pay attention to the
insulation around the connectors.
• Inspect the test leads for damaged insulation
or exposed metal. Check the test leads for
continuity. Replace damaged test leads with
identical model number or electrical
specifications before using the multimeter
• When using the test leads, keep your fingers
behind the finger guards.
• Do not apply more than the rated voltage, as
marked on the multimeter, between the
terminals or between any terminal and grounding.
• When the multimeter working at an effective
voltage over 60V in DC or 30V in AC, special
care should be taken for there is danger of
electric shock.
• Use the proper terminals, function, and range
for your measurements.
• The rotary switch should be placed in the right
position and no any changeover of range shall
be made during measurement is conducted to
prevent damage of the multimeter.
• Disconnect circuit power and discharge all
high-voltage capacitors before testing current,
resistance, diodes or continuity.
• Replace the battery as soon as the battery
indicator appears. With a low battery, the
multimeter might produce false readings that can
lead to electric shock and personal injury.
• When servicing the multimeter, use only the
same model number or identical electrical
specifications replacement parts.
• The internal circuit of the multimeter shall not be
altered at will to avoid damage of the multimeter
and any accident.
• Soft cloth and mild detergent should be used to
clean the surface of the multimeter when
servicing. No abrasive and solvent should be
used to prevent the surface of the multimeter
from corrosion, damage and accident.
• Turn off the multimeter when it is not in use and
take out the battery when not using for a long
time.
• Constantly check the battery as it may leak when
it has been using for some time, replace the
battery as soon as leaking appears. A leaking
battery will damage the multimeter.
• Do not use or stoer the multimeter in an
environment of high temperature, humidity,
explosive, inflammable and strong magnetic field.
The performance of the multimeter may
deteriorate after dampened.
• The multimeter is suitable foe indoor use.

Automotive Servicing Safety Guide

WARNING
As some automobiles are installed with safe-
ty air bags, you must pay attention to the
cautions in the automotive servicing manual when
you are working around the components and
wiring of the air bags, or any carelessness will
open an air bag, resulting in some personal injury.
Note that the air bag will also be opened for a few
minutes after the ignition lock is closed (or even
when the automotive battery is cut off), which is
driven by the special energy reserve.
• Wear protective eyeglasses which meet safety
requirements.
• Operate the automobile in a well-ventilated place
so as to prevent the inhalation of any toxic tail gas.
• Keep your own tools and testing instruments far
from all the heater components of the operating
engine.
• Ensure that the automobile has stopped (automatic
transmission) or put into neutral gear (manual
transmission) and be sure that it is equipped with
brakes and the wheels have been locked.
• Do not place any tool on the automotive battery
which will cause a short circuit of the electrodes
and in turn lead to any personal injury or damage
to a tool or battery.
• Smoking or striking a light near the automobile
is prohibited in order to prevent any combustion
or explosion.
• Do not leave the automobile in a test operation.
• Heighten your vigilance while working around
an ignition coil, a shunt box, an ignition lead or a
spark plug socket because these components
are provided with high voltages when the
automobile is operating.
• To connect or cut off an electronic component,
close the ignition lock.
• Pay attention to the automotive producer's
cautions, notes and servicing procedures.
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