7
• Before each change in measuring range the test probes must be
removed from the test object.
• Before each measurement check your measuring device and
instrument leads for damage.
• Only use the instrument leads which are enclosed with the mea-
suring device for measurement. No others may be used.
• To avoid electric shock, care should be taken that the test pro-
bes and the measurement connections (test points) are not tou-
ched during measurement, not even indirectly.
• The voltage between a chosen 4-mm socket of the instrument
and ground may not exceed 600 VDC/VAC rms.
• The measuring instrument should not be used in spaces or
under adverse environmental conditions, in which inflammable
gas, steam or dust are present or can occur. For the user's own
safety it is essential to prevent the measuring instrument or test
leads becoming damp or wet. Avoid operation in the immedia-
te vicinity of
a) strong magnetic fields (loudspeakers, magnets)
b) electromagnetic fields (transformers, motors, coils, relays,
contactors, electromagnets, etc.)
c) electrostatic fields (charges/discharges)
d) transmission aerials or HF generators
• Do not use the multimeter shortly before, during or shortly
after a thunderstorm (lightning strike!/high energy over-volta-
ges!)! Care should be taken that hands, shoes, clothing, the
floor, the measuring instrument and test leads, switches and cir-
cuits etc. are absolutely dry.
6
• When effecting replacements, you must ensure that only fuses
of the specified type and the specified current rating are used.
The use of patched fuses or bridging of the fuse socket is not
permissible. To change the fuses, disconnect the measuring
device from the circuit and switch it off. Remove all connected
leads and test probes. Select a suitable cross-head screwdriver
and carefully open the housing. In addition the sockets cover
must be removed. The disassembly of the sockets cover is descri-
bed with diagram under "5.1.1 Battery replacement". Remove
the defective fuse(s) and replace with fuse(s) of the same type
and current rating..
0,8 F 250.8 A/250 V or F800 mA/250 V or, for the A range, 20 A
quick-acting 250 V; standard designation: F 0.8 A/250 V or
F800 mA/250 V or, for the A range, 20 A quick-acting 250 V;
standard designation: F20 A/ 250 V.
When the fuse change has been completed, carefully close and
bolt the housing in the reverse order.
Only use the measuring device when the housing has been safe-
ly closed and bolted.
• Take particular care when dealing with voltages greater than 25
V alternating (AC) or greater than 35 V direct voltage (DC). Even
at these voltages you can receive a lethal electric shock if you
touch electrical conductors.
Therefore, first of all switch off the current of the voltage sour-
ce, connect the measuring device to the connections of the vol-
tage source to be measured, set the required voltage measuring
range on the measuring device and then switch the voltage
source on again.
After the measurement has been completed, switch off the vol-
tage source and remove the instrument leads from the voltage
source connections.
• Before each voltage measurement ensure that the measuring
device is not located in the current measuring range.
