Prokit's Industries NT-6540 User Manual

NT-6540
Laser Distance Measurer

User Manual

1st Edition

©2013 Copyright by Prokit’s Industries Co., Ltd

Thanks for buying Pro’sKit NT-6540 Laser Distance
Measurer (40M). Please read these instructions carefully
before using the product.

SAFETY INSTRUMENT
Permitted use

• Measuring distances

• Computing functions, e. g. areas.

• Indirect Measuring with Pythagorean Theorem.

Prohibited use

• Using the instrument without instruction

• Using outside the stated limits

• Deactivation of safety systems and removal of
explanatory and hazard labels

• Opening of the equipment by using tools (screwdrivers,
etc.), as far as not specifically permitted for certain cases

• Carrying out modification or conversion of the product

• Use after misappropriation

• Use of accessories from other manufacturers without the
express approval of PROKIT'S INDUSTRIES CO., LTD.

• Deliberate or irresponsible behavior on scaffolding, when
using ladders, when measuring near machines which are
running, or near parts of machines or installations which
are unprotected

• Aiming directly into the sun

• Deliberate dazzling of third parties; also in the dark

• Inadequate safeguards at the surveying site (e.g. when
measuring on roads, construction sites, etc.)



1

Laser cla

The NT-6540 produced a visible laser beam which
emerges from the front of the instrument.

ssification

Laser Class 2 products:

Do not stare into the laser beam or direct it towards other
people unnecessarily. Eye protection is normally afforded
by aversion responses including the blink reflex.

WARNING:

Looking directly into the beam with optical aids
(e.g. binoculars, telescopes) can be hazardous.

PRECAUTION:

Do not look directly into the beam with optical aids.

CAUTION:

Looking into the laser beam may be hazardous to the
eyes.

PRECAUTION:

Do not look into the laser beam. Make sure the laser is
aimed above or below eye level.



2

INTRODUCTION
Keypad

1. Measuring

2. Reference setting

3. Unit change/LCD back light

4. Area/Pythagorean/Historical
data recalls

5. Device on/Off/Clear

Technical Data

Part Number NT-6540
Range 0.1 ~ 40m
Accuracy ±2mm
Unit m/in/ft/ft+in
Continuous measurement YES
Area calculations YES
Display 2 Line display
Display back light YES
Historical recodes 10 sets
Buzzer indication YES
Dust protection/Splash proof IP54

Battery type

Battery life
Laser class Class II

Laser type 650nm, < 1mW

Type AAA x 2pcs
(1.5V)
Up to 5000 times
(Only for reference)



3