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• When using the device outdoors, make sure that the weather
conditions are appropriate and/or that suitable protection measures
are taken.
• In overvoltage category III (CAT III - 1000 V), the voltage between
the test device and earth must not exceed 1000 V.
• Before taking any measurements, make sure that both the area to
be tested (e.g. a line), the test device and the accessories used
(e.g. connection cable) are in proper working order. Test the device
by connecting it to known voltage sources (e.g. a 230 V socket in
the case of AC testing or a car battery in the case of DC testing).
• The device must no longer be used if one or more of its functions
fail or the battery charge is weak.
• The device must be disconnected from all power sources and
measuring circuits before opening the cover to change the
battery(ies) or fuse(s).
• Observe the safety precautions of local and national authorities
relating to the correct use of the device and any prescribed safety
equipment (e.g. electrician's safety gloves).
• If you have to take hold of the measuring spikes, do so by the
grip sections only. Do not touch the measuring contacts whilst
the measurement is being taken.
• Make sure that you always select the correct connections and
rotary switch position with the correct measuring range for
the measurement to be carried out.
• Do not work alone in the vicinity of hazardous electrical installations
• Disconnect the power supply to the electrical circuit before
measuring or checking the diodes, resistance or battery charge.
• Make sure that all high-voltage capacitors are discharged.
• When connecting to a voltage, always connect the black
procedure when disconnecting.
Additional information on use
Observe the technical safety regulations for working on electrical
systems, especially: 1. Safely isolating from power supply, 2. Securing to
prevent system being switched on again, 3. Checking zero potential,
two-pole, 4. Earthing and short-circuiting, 5. Securing and covering
adjacent live components.
Safety instructions
Dealing with electromagnetic radiation
• The measuring device complies with electromagnetic compatibility
regulations and limit values in accordance with EMC-Directive
2014/30/EU.
• Local operating restrictions – for example, in hospitals, aircraft,
petrol stations or in the vicinity of people with pacemakers –
may apply. Electronic devices can potentially cause hazards or
interference or be subject to hazards or interference.
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