David White 3900HV Owner's Manual

3900HV

www.davidwhite.us.com

3900HV

Rotary Laser Owner’s Guide

FOR CUSTOMER SERVICE, PARTS AND REPAIR CALL

[phone]

IMPORTANT: IMPORTANT: IMPORTANTE:
Read Before Using Lire avant usage Leer antes de usar

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With David White
your sights are set on
precision and accuracy.

Congratulations! You’ve purchased a David White builder/contractor
instrument, known throughout the world for precision and accuracy.

The purpose of this user’s guide is to acquaint you with the instrument, its
components, safety, proper care and handling.

Our levels, level-transits and transits are constructed to withstand
extremely rugged field use. Like all precision instruments, however, they
should be treated with reasonable care to prolong life and accuracy.

All instruments are adjusted when they are shipped from the factory. It
is the customer’s responsibility to check and to ensure instruments are
adjusted prior to using.

David White is not responsible for errors caused by instruments that are
out of adjustment.

Contact your distributor, dealer or David White for information on the
nearest facility to check if your instrument is properly adjusted.

All specifications are subject to change without notice.

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3900HV

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GENERAL SAFETY RULES

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WARNING

Read all instructions. Failure to follow all instructions listed

below may result in hazardous radiation exposure, electric

shock, fire and/or serious injury.
If glass light house breaks when dropped, contact customer service

immediately. Broken glass can cause laceration hazard and unit to

lose its IP rating.

DO NOT direct the laser beam at persons or animals and do not
stare into the laser beam yourself. This tool produces laser class 2
laser radiation and complies with 21 CFR 1040.10 and 1040.11
except for deviations pursuant to Laser Notice No. 50, dated June
24, 2007. This can lead to persons being blinded.

DO NOT remove or deface any warning or caution labels.

Removing labels increases the risk of exposure to laser radiation.

Use of controls or adjustments or performance of procedures other than those
specified in this manual, may result in hazardous radiation exposure.

ALWAYS make sure that any bystanders in the vicinity of use are made aware
of the dangers of looking directly into the laser tool.

DO NOT place the laser tool in a position that may cause anyone to stare into
the laser beam intentionally or unintentionally. Serious eye injury could result.

ALWAYS position the laser tool securely. Damage to the laser tool and/or

serious injury to the user could result if the laser tool falls.

ALWAYS use only the accessories that are recommended by the manufacturer
of your laser tool. Use of accessories that have been designed for use with

other laser tools could result in serious injury or unsatisfactory performance.

DO NOT use this laser tool for any purpose other than those outlined in this
manual. This could result in serious injury or unsatisfactory performance.

DO NOT leave the laser tool “ON” unattended in any operating mode.
DO NOT disassemble the laser tool. There are no user serviceable parts inside.

Do not modify the product in any way. Modifying the laser tool may result in
hazardous laser radiation exposure.

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Work area safety

Keep work area clean and well
lit. Cluttered or dark areas invite

accidents.

DO NOT operate the laser tool around
children or allow children to operate
the laser tool. Serious eye injury

could result.

DO NOT use instruments, attachments
and accessories outdoors when
lightening conditions are present.

Electrical safety

Batteries can explode or leak, cause
injury or fire. To reduce this risk,

always follow all instructions and
warnings on the battery label and
package.

Remove the batteries from the tool
when not using it for extended
periods. When storing for extended

periods, the batteries can corrode
and discharge themselves.

DO NOT short any battery terminals.
DO NOT charge alkaline batteries.
DO NOT mix old and new batteries.
Replace all old batteries at the same

time with new batteries of the same
brand and type.

DO NOT mix battery chemistries.
Dispose of or recycle batteries per
local code.

DO NOT dispose of batteries in fire.

Keep batteries out of reach of
children.

Personal safety

Stay alert, watch what you are
doing and use common sense
when operating a tool. Do not use
a tool while you are tired or under
the influence of drugs, alcohol or
medication. A moment of inattention

while operating a tool may result in
serious personal injury or incorrect
measurement results.

Use safety equipment. Always wear
eye protection. Safety equipment

such as dust mask, non-skid
safety shoes, hard hat, or hearing
protection used for appropriate
conditions will reduce personal
injuries.

DO NOT use the laser viewing glasses
as safety goggles. The laser viewing

glasses are used for improved
visualization of the laser beam, but
they do not protect against laser
radiation.

DO NOT use the laser viewing glasses
as sun glasses or in traffic. The

laser viewing glasses do not afford
complete UV protection and reduce
color perception.

DO NOT use any optical tools such
as, but not limited to, telescopes