VOLTCRAFT MULTI-DMM MT-52 - V09-10 Operating Instructions Manual page 39

The unauthorized conversion and/or modification of the product is inadmissible for reasons of safety and
approval (CE).
Consult an expert when in doubt as to the operation, the safety or the connection of the device.
meters 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'
society for electrical equipment and utilities must be followed.
In schools, training centres, computer and self-help workshops, handling of meters must be supervised
by trained personnel in a responsible manner.
Before measuring voltages, always make sure that the meter is not set to a measuring range for currents.
The voltage between the measuring instrument connection points and earth must never exceed 600 V
DC/AC in CAT III.
The measuring prods have to be removed from the measured object every time the measuring range is
changed.
Be especially careful when dealing with voltages higher than 50 V AC or 75 V DC. Even at these voltages
it is possible to receive a fatal electric shock if you touch electrical conductors.
Check the measuring device and its measuring leads for damage before each measurement. Never
carry out any measurements if the protecting insulation is defective (torn, ripped off etc.)
To avoid electric shock, do not to touch the connections/measuring points directly or indirectly during mea-
surements. During measuring, do not grip beyond the grip range markings (which you can feel) present on
the measuring prods.
Do not use the multimeter just before, during or just after a thunderstorm (lightning! / high-energy over-
voltage!). Please make sure that your hands, your shoes, your clothing, the floor, switches and switching
components are dry.
Avoid operation in direct proximity to strong magnetic or electromagnetic fields, transmitter aerials or HF
generators. This could affect the measurement.
If you have reason to believe that the device can no longer be operated safely, disconnect it immediate-
ly and make sure it is not unintentionally operated. It must be assumed that safe operation is no longer
possible if:
- the device shows visible damage,
- the device no longer works and
- the device 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 meter on immediately after it has been taken from a cold to a warm environment. The
condensation that forms might destroy your 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 dange-
rous toys in the hands of children.
You should also heed the safety instructions in each chapter of these instructions.
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