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• When measuring in the measuring category CAT III and CAT IV, measuring prods with cover caps (max.
4 mm free contact length) must be used to avoid accidental short circuits during measurement. They are
enclosed.
• The measuring prods have to be removed from the measured object every time the measuring function
is changed.
• The voltage between the connection points of the meter and the earth potential must not exceed 1000 V
DC/AC in CAT III or 600 V DC/AC in CAT IV.
• Be especially careful when dealing with voltages higher than 33 V alternating (AC) or 70 V direct volt-
age (DC)! Even at these voltages it is possible to receive a potentially fatal electric shock if you touch
electrical conductors.
• To avoid electric shock, make sure not to touch the connections/measuring points to be measured di-
rectly or indirectly during measurement. During measuring, do not grip beyond the tangible grip range
markings present on the measuring prods.
• Check the meter and its measuring lines for damage before each measurement. Never carry out any
measurements if the protecting insulation is defective (torn, ripped off etc.). The enclosed measuring
cables have a wear indicator. When they are damaged, a second insulation layer in a different colour
becomes visible. The measuring accessories must no longer be used and must be replaced.
• Do not use the multimeter just before, during or just after a thunderstorm (lightning! / high-energy over-
voltage!). Make sure that your hands, shoes, clothing, the floor, circuits and circuit components are dry.
• Never operate the product in direct proximity of:
- 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 immediately
and make sure it is not operated unintentionally. It can be assumed that safe operation is no longer
possible if:
- the device shows any visible damage,
- the device no longer works and
- the device was stored under unfavourable conditions for an extended period of time or
- after it was exposed to extraordinary stress caused by transport.
• Do not switch the meter on immediately after it was 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 dangerous
toys in the hands of children.
• Also observe the safety information in each chapter of these instructions.
