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Consult an expert when in doubt about the operation, the safety or the connection of the device.
Measuring instruments and accessories are not toys and have no place in the hands of children!
On industrial sites the accident prevention regulations of the association of the industrial workers’soci-
ety for electrical equipment and utilities must be followed.
In schools, training centres, computer and self-help workshops, handling of measuring 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 electrical currents.
The voltage between the measuring instrument connection points and earth must never exceed 600 V
DC/AC in CAT III.
The test probes have to be removed from the measured object every time the measuring range is
changed.
Take particular care when dealing with voltages exceeding 25 V AC or 35 V DC! Even at these volt-
ages it is possible to get a fatal electric shock if you touch electrical conductors.
Prior to each measurement, check your instrument, including its measuring lines, for any damage.
Never carry out measurements when the protective 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. During measuring, do not grip beyond the grip range markings (which
you can feel) present on the test probes.
Do not use the multimeter just before, during or just after an electrical storm (electrical shock / high-
energy overloads!). Please make sure that your hands, your shoes, your clothing, the floor, switches
and switching components are dry.
Avoid operation in the immediate vicinity of:
- strong magnetic or electromagnetic fields
- transmitting aerials or HF generators.
These could lead to an incorrect measurement being carried out.
If you have reason to believe that the device can no longer be operated safely, disconnect it immedi-
ately and make sure it is not unintentionally operated. It can be assumed that safe operation is no
longer possible if:
- the device shows visible damage,
- it does not function any longer and
- after it was stored under unfavourable conditions for a long period of time or
- after it was exposed to extraordinary stress caused by transport.
Do not switch the measuring instrument on immediately after it has been taken from a cold to a warm
environment. The condensation generated could cause serious damage to the device. Allow the
device to reach room temperature before switching it on.
Do not leave the packaging material lying around carelessly since such materials can become dan-
gerous toys in the hands of children.
You should also heed the safety instructions in each chapter of these instructions.
