English
General Instructions (cont'd)
During use (cont'd)
Symbols
on instrument
Opening the
instrument
Digital Benchtop Multimeter
•
When performing current measurements, never change of
range, do not connect or disconnect leads without first isolating
the current. If you do, there is a risk of generating surge
currents, which can blow the fuses or damage the instrument.
•
In TV repair work, or when carrying out measurements on power
switching circuits, remember that high amplitude voltage pulses
at the test points can damage the multimeter. Use of a type TV
filter will attenuate any such pulses.
•
Never perform resistance measurements on live circuits.
•
Make sure that you do not block ventilation.
Refer to user's manual.
Incorrect use can damage unit and be a safety hazard for user.
Earth
•
Before opening the instrument, always disconnect from all
sources of electric current and make sure not to be loaded with
static electricity, which may destroy internal components.
•
Fuses must be replaced with fuses of the same rating and type.
•
Any adjustment, maintenance or repair work carried out on the
multimeter while it is live should be carried out only by
appropriately qualified personnel. A "qualified person" is one
who is familiar with the installation, construction and operation of
the equipment and the hazards involved. He is trained and
authorized to energize, de-energize circuits and equipment in
accordance with established practices.
•
When the instrument is open, remember that some internal
capacitors can retain a dangerous potential even after the
instrument is powered down.
•
If any faults or abnormalities are observed, take the instrument
out of service and ensure that it cannot be used until it has been
checked out.
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