VOLTCRAFT VC-20 Notice D'emploi page 34

In schools, training centres, computer and self-help workshops,
handling of measuring instruments must be supervised by trained
personnel in a responsible manner.
Always make sure before measuring voltages that the measuring
instrument is not set to a current measuring range.
The voltage between the two measuring device and the ground
potential must not exceed 600 V DC/AC in overvoltage category IV.
Measurements between measuring instrument and ground potential
are not tob e carried out above overvoltage category CAT II when
using the measuring leads without cover caps.
Before changing the measuring range, the test prods have to be
removed from the measured object.
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.
Prior to each measurement, check your instrument and its measur-
ing leads for damage. Never carry out measurements when the pro-
tective insulation is damaged (ripped, torn off etc.).
In order to avoid an electric shock, ensure that you do not touch the
connections to be measured, even indirectly, during measurements.
Do not exceed the perceivable grip range markings (11) on the test
prods during measuring!
Do not use the multimeter just before, during or just after an electri-
cal storm (electrical shock! / high-energy over-voltages!). Please
make certain that your hands, shoes, clothing, the floor, circuits and
parts etc. are absolutely dry.
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