Operation; Testing Precautions - Megger S1-5001 Guide De L'utilisateur

Testing Precautions

The circuit under test must be completely de-energized
and isolated before test connections are made.
1. The instrument must only be used by suitably trained
and competent persons.
2. Circuit connections must not be touched during a test.
3. The S1-5001 can give an electric shock. Highly
capacitive circuits (e.g. long lengths of cable) charged to
several kV can create a potentially lethal charge.
4. Care must be taken to prevent capacitive circuits
becoming disconnected during a test, leaving the circuit in a
charged state.
5. The voltmeter and automatic discharge feature of the
S1-5001 should be regarded as additional safety features
and not a substitute for normal safe working practice.
6. When carrying out prolonged tests unattended, care
should be taken that no harm or damage can be
caused.
7. When using the 'BURN' feature, care should be taken
that no harm or significant damage can be caused.
8. In certain circumstances, break-down of the circuit
under test may cause the instrument to terminate the
test in an uncontrolled manner, possibly causing a loss
8

Operation

of display while the circuit remains energised. In this
event, the circuit is must be discharged and the
instrument turned off before touching any connections.
9. The S1-5001 has an environmental protection classifica-
tion of IP54 with the charging recess cover securely
closed.
view (and to avoid unwanted leakage currents) to ensure
that the testing terminal area and the charging recess are
kept free from dirt and moisture.
10. Before use, any surface water on the instrument must
be removed, especially from the test lead sockets
11. Fuse replacements must be of the correct type and
rating. Refer to the Specification section for correct
replacement fuse details.
12. If any part of the instrument is damaged, it should not be
used, but returned to the manufacturer or an approved repair
company.
13. Should the plug on the power cord not be the type for
your socket outlets (receptacles), do not use an adaptor. Use
a suitable alternative mains cord. Wires in power
cords are coloured as follows:
Earth (Ground)
Neutral
Phase (Line)
It is important from
U.K/International
Yellow/Green
Blue
Brown
a safety point of
U.S.A.
Green
White
Black