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These safety warnings are provided to ensure the safety of
personnel and proper operation of the instrument.
• This instrument is protected from accidental voltages of not
more than 50V with respect to earth in measurement Cat-
egory III.
•
Do not attempt to perform any tests with this instrument until
you have read the user manual.
• Tests are to be carried out on de-energized circuits only!
Never connect the unit to a live circuit.
• Make sure that none of the input terminals are connected
and that the switch is set to OFF before plugging in the AC
power to recharge the battery of the instrument.
•
Make sure the internal battery is fully charged prior to testing.
If the instrument has been left unused for several months,
recharge the battery.
•
If the case needs cleaning, do not use any alcohol or oil
based cleaners. Preferably use soapy water with a damp
cloth or sponge. Do not immerse the 6240 micro-ohmmeter
in water.
• Use connection accessories of which the overvoltage cat-
egory and the service voltage are greater than or equal to
those of the measuring instrument (50V CAT III). Use only
accessories that comply with safety standards (IEC 61010-2-
031).
•
The test leads and measuring wires must be in good
condition and should be replaced if there is any evidence of
deterioration (insulation split, burnt, etc.).
• Troubleshooting and metrological verification procedures
must only be performed by qualified, approved personnel, or
the factory.
4
CHAPTER 1
INTRODUCTION
WARNING
Micro-Ohmmeter Model 6240
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