Mains Voltage Supply; Earth Conductor; Fuses - Iso-Tech IDM 203 RMS Instruction Manual

Important : To avoid damage to the meter
– Remove the test probes from the item from which measurements are being taken before you change the
function to which the meter is set.
– Never apply to the meter voltages which may exceed 600Vd.c. or 600Va.c.rms.
– Never try to measure voltages when the meter is set to measure resistance (Ω).
Always use the fuses specified.
To avoid the risk of fire, you must only use fuses of the correct type with the voltage and current ratings given on the bottom of the meter.
It is strictly forbidden for "repaired" fuses to be used or for the fuse holders to be shorted out.
WARNING : Read this operating manual thoroughly before you use the meter and follow the instructions given in it when
you are using the meter.
Misunderstandings of the warnings given or the operating instructions and errors in following them may cause
hazards or serious injury and/or may result in damage to the meter or other equipment.

1.1 Mains voltage supply

This meter is designed to operate on mains voltages which do not exceed 264Vrms between the phase conductors or between
these conductors and earth.

1.2 Earth conductor

The earth conductor (the third conductor in the power cable) is essential to allow this meter to be used safely. To avoid the
danger of electric shock and before any connections are made to the input or output terminals of the meter, the mains plug
should only ever be plugged into a socket properly wired to statutory requirements. Never cut, disconnect or otherwise
interrupt the earth conductor. Always use power cables and plugs as specified in this operating manual.

1.3 Fuses

To avoid the risk of fire, you must only use fuses of the correct type with the voltage and current ratings given on the bottom of
the meter (see section 3.2 Electrical characteristics).
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