Bierer Vdao450 User manual

Analog Voltage Detector 1-450kV

Operating Instructions

VDAO450TM

Patent No. 6,275,022

CONTENTS

Limitation of Warranty and Liability 2

Product Safety Information 3

Design and Function 4

Operating Procedure 5

Accessories 6

Notes 7

1

Limitation of Warranty and Liability

Bierer & Associates Inc. warrants this product to be free from defects in

workmanship and material, under normal use and service conditions for a

period of one year from date of shipment.

Due to continuous product improvement and development, Bierer &

Associates Inc. reserves the right to modify product designs and

specifications without notice.

It is impossible to eliminate all risks associated with the use of high

voltage electrical devices including this device. Risks of serious injury

or death are inherent in working around energized electrical systems.

Such risks include but are not limited to variations of electrical systems

and equipment, manner of use or applications, weather and

environmental conditions, operator mentality, and other unknown factors

that are beyond the control of Bierer & Associates Inc.

Bierer & Associates Inc. do not express or imply to be an insurer of these

risks, and by purchasing or using this product you AGREE TO

ACCEPT THESE RISKS. IN NO EVENT SHALL Bierer &

Associates Inc. BE LIABLE FOR ANY INCIDENTAL,

CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM

THE USE OR HANDLING OF THIS PRODUCT.

SAFETY MESSAGE DEFINITIONS per ANSI Z535

These instructions contain important safety messages to alert the user

to potentially hazardous situations, how to avoid the hazard, and the

consequences of failure to follow the instruction.

The safety alert symbol identifies a safety message. The

signal word following the symbol indicates:

DANGER A hazardous situation which, if not avoided, will

result in death or serious injury and equipment damage.

WARNING A hazardous situation which, if not avoided, could

result in death or serious injury and equipment damage.

CAUTION A hazardous situation which, if not avoided, could

result in minor or moderate injury and equipment damage.

NOTICE Important safety message relating to equipment

damage only.

2

PRODUCT SAFETY INFORMATION

WARNING

1. Meter assembly and live line tool adapters shall be considered

non-insulating. Do not let live line tool fittings come in

contact with energized or grounded conductors.

2. Use appropriate length live line tools for voltage being worked

and maintain minimum approach distances as outlined in

OSHA 1910.269, Table R-6.

3. All Phasing Meters and Voltage Detectors manufactured

during and after 2007 will have a limit mark engraved on the

high voltage probe(s) 2.5 inches from the tip to indicate to the

user the physical limit that should not be exceeded when

approaching and contacting an electrical conductor or other

electrical test points. Zero Ohm insulated adapters (81280IE)

should be used if limit mark will be exceeded.

4. This equipment should be used only by qualified employees,

trained in and familiar with the safety-related work practices,

safety rules and other safety requirements associated with the

use of this type of equipment.

5. These instructions are not intended as a substitute for adequate

training, nor do they cover all details or situations which could

be encountered when operating this type of equipment.

6. Before operating this equipment, read, understand and follow

all instructions contained in this manual. Keep instructions

with equipment.

INSPECTION & MAINTENANCE BEFORE USE

WARNING

1. Prior to using any high voltage test equipment a careful

inspection should be made to ensure the unit is free from any

contaminants such as dirt, grease, etc. and that there are no

apparent physical damages.

2. High voltage probe assemblies shall be wiped clean prior to

each use with a silicone impregnated cloth and kept clean and

free of contaminants. This will prevent tracking on the outside

of the probe and meter error.

3. Always confirm internal battery voltage before and after each

use.

3

WARNING

4

DESIGN and FUNCTION

The

VDA0450

is a direct contact, linear/ logarithmic

scale (linear to 14), capacitive type voltage detectors for use

on system voltages up to 500kV/765kV (Phase-to- Phase). Direct

contact with line conductors and equipment indicates

approximate nominal

Line-to-Ground

voltage or induced voltage.

Completely shielded, the tester reads only contacted test points.

Five Position Selector Switch Positions

OFF

-

Meter OFF

OFF

-

Meter OFF

OFF

-

Meter OFF

ON

T

-

Meter ON

-

Meter Test

Always test lines and equipment with the selector switch in the

“ON”

position.

Meter should deflect full scale with a new battery in “T” position.

Deflection below

140 indicates low battery. Replaceable 9V battery is

located behind the

live line tool attachment threaded into the meter

housing. Two flat

surfaces are furnished for use with a wrench to

remove the attachment.

Always test voltage detector before and after each use

As with all voltage detectors, readings can be affected by a

variety of field conditions. For example, if the live line tool fitting

is close

to opposite phases or grounded surfaces, the readings could

be higher

than nominal. If the live line tool fitting is close to same

phases, the

reading could be lower than nominal.

It is recommended that the meter housing and probe be cleaned

with a silicone cloth prior to each use.

5

OPERATING PROCEDURES

1

Test voltage detector for proper operation by turning the selector

switch to the ''T'' position.

Meter should deflect full scale (450kV) with a new

battery in the “T” position.

Readings below 140 indicate low battery.

2

Install appropriate end fitting into the meter probe, straight, hook or

bushing/elbow adapter for URD.

3

Attach the voltage detector to an appropriate length live line tool

for the voltage to be tested.

4

Turn selector switch to the “ON” position.

5

Make direct contact with line or equipment and note meter

reading. Reading should take into account proximity to other

phases and grounded surfaces and be consistent with

previous experience on same voltages and circuit configuration

with this voltage detector.

NOTE: Meter scale indicates approximate

Line-to-Ground values.

6

If there is any doubt about the readings under any

circumstances, the line or equipment shall be considered

energized and appropriate safety precautions shall be taken, i.e.,

confirm visual open gaps, tag outs, dispatcher hold orders, and

sources of induced voltage, etc.

NOTE: Ratings, performance factors and results may

vary dependent on field and application conditions.

Technical & Service

Bierer & Associates Inc.

Manufacturing & Repair

10730 Farrow Rd.

Blythewood SC 29016

Tel: (803) 786-4839

Fax: (803) 786-5457

www.BiererMeters.com

6

PART N0.

DESCRIPTION

8128TBALB

15 -25kV Bushing Adapter

8128TEALB

15 -25kV Elbow Adapter

81280LHM

Hook Adapter

81280LPM

Probe Adapter

PA165UGA

Universal / Grip All Combo Adapter

VDA18B

Storage Box with Foam Padding

81280IE

Insulated Zero Ohm Extension Adapter

ACCESSORIES

NOTES_____________________________________________________

____________________________________________________________

7 REV. ED. 081211

Bierer VDAO450 User manual

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