SEFRAM MW3105, Manual

Page: 15 / 28

15
OPERATION
This instrument has been designed and tested in accordance with IEC Publication 1010, Safety Requirements for
Electronic Measuring Apparatus and has been supplied in a safe condition. This instruction manual contains some
information and warnings which have to be followed by the user to ensure safe operation and to retain the instrument
in safe condition.
3.1 Precaution and preparations for measurements
1. Read, thoroughly understand and follow the SAFETY instructions given in this manual.
2. Examine your test leads. Make sure they are in good condition, free from cracks, etc., and that they make good contact with
the plugs of your meter. Do this for safe operation and to avoid false readings.
3. Before taking a measurement, review the related instructions in this manual.
4. Before taking a measurement, estimate its expected value. If you are considerably out of an expected range, carefully review
your circuit under test; it could be defective.
5. If value of measurement is unknown, start with the highest range.
6. Stay within the operating range of your meter. Never exceed the 750 V AC or 1000 V DC maximum limits and 500 V from
COM plug to earth ground or reference.
7. If an over-range is shown, immediately switch to a higher range.
CAUTION
Never switch between ranges while connected to high voltage. This prevents damage to the instrument.