– If the device comes into contact with moisture or other conductive-
residue, work must not be carried out under voltage. At and above
voltages of 24 V/AC rms / 60 V/DC, the presence of moisture creates
the risk of life-threatening electric shocks.
– Clean and dry the device before use.
– This device is to be used in enclosed spaces only; do not expose to
moisture or rain as this may result in electric shock.
– In overvoltage category III (CAT III), the voltage between the test
device and earth must not exceed 300 V.
– The lowest overvoltage category (CAT), rated voltage and rated current
apply when using the device together with the measuring equipment.
– 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 measu-
ring circuits before opening the cover to change the battery(ies) or
fuse(s). Do not switch on the device with the cover open.
– 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
and only under the guidance of a qualified electrician.
– 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.
To check, remove the measuring leads of the device from the test
piece before changing the mode.
– Check that all high-voltage capacitors are discharged.
– When connecting to a voltage, always connect the black
measuring lead first before the red lead. Follow the reverse
procedure when disconnecting.
14
EN