Introduction - AEMC 6471 User Manual

These safety warnings are provided to ensure the safety of personnel.
Please read and comply with these precautions:
• This instrument is protected from accidental voltages of not more than
• Safety is the responsibility of the operator.
• All metal objects or wires connected to the electrical system should be
• Never exceed the maximum rated voltage and current, and the mea-
• Never exceed the protection limits, and always comply with the condi-
• Do not use the instrument or its accessories if they appear damaged.
• Use accessories that have overvoltage category and service voltages
• Wear the appropriate protective gear (insulating boots and gloves).
• Check that no terminal is connected and the switch is set to OFF before
• Use only the charging unit supplied with the instrument to recharge the
• Troubleshooting and metrological verification procedures must only be
• NOTE: The potentials on the various rods used for an earth measurement
Ground Resistance Tester Model 6471
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INTRODUCTION

50V with respect to earth in measurement CAT IV. The guaranteed level
of protection of this equipment may be compromised if used in a manner
not specified by the manufacturer.
assumed to be lethal until tested. Grounding systems are no exception.
surement category.
tions and place of use, indicated in the specifications.
greater than or equal to those of the instrument (CAT IV 50V). Use only
accessories that comply with safety standards (IEC 61010).
opening the device.
battery.
performed by qualified, approved personnel, or the factory.
may be different if a nearby electrical installation is defective or certain
weather conditions prevail (thunderstorms). It is up to the operator
to decide whether to continue or postpone measurements in these
situations.
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CHAPTER 1
WARNING
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