Non-Contact, High Voltage Detector 275HVD
5
CHAPTER 2
PRODUCT FEATURES
IMPORTANT WARNING
Never assume conductors that have been tested as
de-energized will stay de-energized.
Always install proper grounding devices before working.
Failure to do so may result in serious injury or death.
2.1 Description
The Non-Contact High Voltage Detector Model 275HVD is a high voltage
detector by proximity. It is not designed to enter into contact with
conductors.
The 275HVD should never touch conductors and must be used
with an insulated berglass rod or Hot Stick appropriately
rated for the voltage being tested.
The Non-Contact High Voltage Detector Model 275HVD is not a “measuring
instrument” per say, rather it is a product designed to warn the user of the
presence of voltage in a particular work site.
The 275HVD uses an internal sensor designed to detect the radiated
electrical eld (V/m) present in energized conductors. The radiated
electricaleldincreaseswiththelinevoltagebutdecreaseswithdistance
and/or shielding.
The 275HVD has eight voltage range settings. These correspond to
internaleldsensitivitysettings:thelowerthevoltagesetting;thehigher
thesensitivitytodetecttheelectricaleld;and,thegreaterthedetection
distance. It also has an “auto-test” setting to check functionality (see §
4.3).
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