M
210170
Insulation &
Low Resistance Tester
User Guide
SAFETY WARNINGS
✱
Safety Warnings and Precautions must be read and understood
before the instrument is used. They must be observed during use.
✱
The circuit under test must be switched off, de - energized and
isolated before Insulation or Continuity tests are made.
✱
Circuit connections must not be touched during a test.
✱
The test button must not be pressed while connecting the test
leads or while changing ranges.
✱
The ‘Test’ button must not be pressed when making a voltage test.
✱
The Default Voltmeter, and Automatic discharge are additional
safety features and should not be regarded as a substitute for
normal safe working practice.
✱
The
210170
is protected for connection to Power distribution
systems up to 300 V Line - Ground, and 500 V Line - Line for
Installation Category
III
*
.
✱
It is recommended that fused test leads are used when measuring
voltage on high energy systems.
✱
After insulation tests, capacitive circuits must be allowed to
discharge before disconnecting the test leads.
✱
Test leads, prods and alligator clips must be in good order; clean,
and with no broken or cracked insulation.
✱
Replacement fuses must be of the correct size, type and rating.
Symbols used on the instrument
Caution: risk of electric shock
Caution: refer to accompanying notes
Equipment protected throughout by Double
Insulation (Class
II
)
NOTE
THE INSTRUMENT MUST ONLY BE USED BY SUITABLY TRAINED AND COMPETENT
PERSONS
.
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