Kilo voltímetros medidores de alto voltaje alta tensión digitales DVI-100/K02 HD-ELECTRIC manual ingles www.viaindustrial.com
HOWTO USEIT
Test the DVI battery and display by pressing and holding the ON button. Verifythat
the display reads all 8’s and the beeper sounds. If needed, replace the 9V battery with
an alkaline or lithium type.
Installtheappropriateprobesecurelyto theDVI.Usethe overhead hookprobes,the smaller
hookcanbeusedupto99kVandthelargerhook100kVandabove,foroverheadapplications
withclearancesufficienttokeep the
DVI
housingawayfromanyotherliveorgrounded
conductor.Usethe optionalinsulatedunderground probeforunderground orpad mount
applicationsincludingloadbreakbushings,metalcladswitchgearoranyotherapplications
wheregroundedorother liveconductorsmaybeincloseproximitytothe conductorbeing
tested.Someoverheadapplicationssuchasfusecutouts,switches,disconnects,terminations
ormeasurements made nearapoleorcrossarmmaycallforuse ofthe underground probe
due to the close proximity of grounds.
Never
allow
the
DVI
to
bridge
between
two
energized
conductors
or
from
an
energized
conductor
to
ground.
Always install the DVI on ahotstick with length appropriate for the voltage to be
measured bywayof the built-inuniversalspline,making certain itis securelyattached.
Test the DVI on aknown voltage source before and after each use, such as the
PT-DVIProof Tester.
Applythe DVI probe to the conductor to be tested making sure to make metal to
metal contact.
All readings are in kV.Voltages below 0.1kV(100V) may indicate zero. Azero
voltage reading does not mean the line is dead or grounded. Voltage in excess
of 99kVline-to-ground for the DVI-100 and in excess of 500kV for the DVI-500
willcause the display to flash and may damage the unit.
ACCURACY
The DVI indicates voltage based on the electric field strength surrounding aconductor.
Electric field strength can be greatly influenced bythe geometry of aconductor and
the presence of other nearby conductors. For best accuracy, keep the DVI at least three
feet (one meter) away from inside or outside corners or points and position the face of
the DVI away from other live conductors and towards ground. The following guidelines
may be helpful:
•
The
DVI
may read up to 25% higherthan actual voltagewhen placed on outside
corners orpoints.
•
The
DVI
may read up to 25% lowerthan actual voltage when placed oninsidecorners.
•
The
DVI
may read up to 25% higherthan actual voltageif measurements are taken
with aground in closeproximity.
•
The DVI may read up to 25% higher or lower if other phases are nearby,
such as from an overbuild.
•
When checking for voltages on conductors believed to be grounded, make the
measurement and keep the DVIas far away as possible from energized conductors
and position the face of the DVItowards ground. When checking pole guy wires,
make the measurement as close to ground as possible.
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