HD Electric PRX-4 Instruction Manual

PRX-4

PROXIMITY VOLTAGE DETECTOR

a n d A C C E S S O R I E S

Operating & Instruction Manual

HD ELECTRIC COMPANY

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PRX-4

PROXIMITY VOLTAGE DETECTOR

a n d A C C E S S O R I E S

Operating & Instruction Manual

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

IMPORTANT SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

HOW TO USE IT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

BATTERY CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

MAINTENANCE AND CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

LIMITATION OF WARRANTY AND LIABILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

For the latest PRX information, including product updates and technical information,
visit our website at www.HDElectricCompany.com

GENERAL DESCRIPTION

The PRX Proximity Voltage Detectors detects voltage at a distance from live unshielded
conductors on overhead and underground power distribution systems. They have been
tested and operate to a voltage of 870kV line-to-line at a detection distance from the
conductor greater than the nominal ten inches.

The PRX have up to nine user selectable voltage ranges covering the range from second­ary voltages to the highest transmission voltages. A setting is included for detecting elbow
test point voltages on underground distribution systems.

The PRX may include a holster, charging cord for charging the unit from a car or truck, a
115-240VAC wall charger adapter and a carrying case.

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IMPORTANT SAFETY INFORMATION

Read and understand these instructions prior to use. These operating instructions
are not a substitute for proper training in the use of this equipment.

• Only trained, professional operating personnel should use the PRX. The voltages this
instrument operates at are dangerous and lethal. Severe injury or death can occur
if improperly used.

• Risk of electrocution is inherent in or around high voltage.

• Always use proper high voltage procedures, including personal protective equipment,
when working near or around high voltage equipment or conductors.

• Do not exceed the PRX maximum voltage rating.

• The PRX must be used with a hotstick of the appropriate length for the voltage being
measured per your company and OSHA published requirements.

• Do not touch the PRX during measurements. The PRX housing should be
considered to be at the same voltage as the conductor under test.

• Prior to using, inspect the instrument for any physical damage, cleanliness and check for
proper working order by pressing the ON button and checking that all voltage range
lights turn on in turn and that the unit stays on following the self test.

• Never allow another high voltage or grounded conductor to contact the instrument
during use. Keep the PRX housing free and clear of all structures at all times.

• Bridging the PRX housing from line-to-ground or line-to-line may cause a fault
and arc.

• The PRX does not detect voltages below 50 volts. Always use proper
grounding procedures.

• Lack of a voltage indication on the
PRX does not mean the conductor
is dead or grounded.

• Grounded equipment or lines can
appear to be live when in close
proximity to energized conductors.

• The PRX is a proximity sensing
device. Voltage detection distance
is not affected by insulation on conductors
such as on tree wire or spacer wire.

• PRX voltage readings are sensitive
to geometry. Read and understand the
HOW TO USE IT section of this manual
(page 4) before using the PRX.

• The PRX detects AC voltage only.
It does not detect DC voltage such as
charged capacitors or cable.

Read and understand the product

labeling before proceeding

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