Digital Transformer Ratiometer DTR
®
Model 8510
3
CHAPTER 1
INTRODUCTION
WARNING
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. The guaranteed level of
protection of this equipment may be compromised if used in a
manner not specified by the manufacturer.
• Read the instruction manual completely and follow all safety
information before attempting to use or service this instrument.
• The Digital Transformer Ratiometer DTR
®
Model 8510 is
designed for use on
de-energized (“dead”)
transformers only.
Make sure the test sample is completely disconnected from AC
power and is
fully discharged
.
• Only qualified personnel should use the DTR
®
8510 .
• The DTR
®
8510 must not be used in a manner in which any of
its components (including test cables) are relied upon to provide
protection from electric shock. No high voltage insulation/
protection is provided by any component of the DTR
®
8510.
Always make sure the circuit is fully discharged before
attaching any test cables.
• Do not touch, adjust, or reposition test cables while the DTR
®
is
conducting a test.
• Use caution on any apparatus: potentially high voltages and
currents may be present and pose a shock hazard.
• Safety is the responsibility of the user.
• Only use the charging unit supplied with the instrument to
recharge the battery.
• Never open the instrument while it is connected to AC power
or when test cables are connected to transformers, equipment,
circuits, etc.
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