VOLTCRAFT VC-666 Bedienungsanleitung Seite 26

In commercial and industrial facilities the regulations for the prevention of accidents
as laid down by the professional trade association for electrical equipment and devi-
ces need to be observed.
In schools, training centres, computer and self-help workshops, handling of measu-
ring instruments must be supervised by trained personnel in a responsible manner.
Before measuring voltages, always make sure that the measuring instrument is not
set to a measuring range for currents.
The voltage between the measuring instrument and earth must never exceed 250 V
DC/AC in CAT III.
The test prods have to be removed from the measured object every time the mea-
suring range is changed.
Take particular care when dealing with voltages exceeding 25V AC or 35V DC!
Even at these voltages it is possible to get a fatal electric shock if you touch electric
conductors.
Check the measuring device and its measuring lines for damage before each mea-
surement. Never carry out any measurements if the protecting insulation is defect
(torn, ripped off etc.)
To avoid an electric shock, make sure not to touch the connections/measuring
points to be measured neither directly nor indirectly during measurement. When
during measuring, do not grip beyond the grip range markings present on the test
prods.
Do not use the multimeter immediately before, during or after thunder and lightning
(thunderstrike / high-energy overvoltages!). Please make sure that your hands, your
shoes, your clothing, the floor, switches and switching components are dry.
Avoid an operation near:
- strong magnetic or electromagnetic fields
- transmitter aerials or HF generators,
This may falsify the measuring value.
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