levenhuk LT20 Laser Level User Manual

: June 9, 2024
: levenhuk

Table of Contents

levenhuk LT20 Laser Level
OVERVIEW
Getting started
Auto-leveling mode
Locked mode
Brightness adjustment
Pulse mode
Specifications
Care and maintenance
Battery safety instructions
Levenhuk International Lifetime Warranty
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

levenhuk LT20 Laser Level

levenhuk-LT20-Laser-Level-PRODUCT

OVERVIEW

levenhuk-LT20-Laser-Level-FIG-1

ON/OFF button
“+” button
“-” button
Laser window
Lock/unlock switch
Battery compartment
Tripod adapter
Power indication

Getting started

Make sure that the lock/unlock switch (5) is in the locked position. Open the battery compartment cover and insert 4 AA batteries according to the correct polarity. Close the cover.

WARNING : When moving the laser level or storing it, keep the switch (5) locked.

Auto-leveling mode

Slide the switch (5) to the unlock position. All the laser beams will light up. The power indicator light (8) is green. If the power indication is red and laser beams flash frequently, place the device on a flatter surface. Press (1) to change the laser beam. Setting order: Vertical laser beam is on → horizontal laser beam is on → both laser beams are on. To turn the device off, switch (5) to the locked position.

Locked mode

Slide the switch (5) to the locked position. Press (1) and hold it for 3 seconds. All the laser beams will be flashing. The power indicator light (8) is red. In locked mode, the device can be angled as needed. This way, it is possible to project inclined lines. The autocalibration will be switched off. Press (1) to change the laser beam. Setting order: vertical laser beam is on → horizontal laser beam is on → both laser beams are on. Press (1) and hold it for 3 seconds to turn the device off.

Brightness adjustment

When in auto-leveling or locked mode, press +/– to change the brightness level. There are ten brightness levels. The last brightness level will be saved when the device is turned on again.

Pulse mode

Unlock the device. Press (1) and hold it for 3 seconds to enter pulse mode. The power indicator light (8) will be flashing.

Note! Brightness adjustment is not possible in pulse mode.

Specifications

LT20 LT40

Laser color red green
Laser wavelength 635–670nm 505–550nm
Working distance 15m 30m
Laser class class II
Expanded angle >130°, 2 lines: horizontal, vertical
Brightness levels and working time 10 levels of brightness: 1 = 40h 10 = 180h
10 levels of brightness: 1 = 10h 10 = 40h
Compensation range 4°±1°
Level accuracy ±1.5mm/5m
Tripod adapter 1/4″
Protection level IP54
Power supply 4 AA batteries
Operating temperature range –10… +50°C (14…122°F)
Dimensions 91x58x84mm (3.5×2.2×3.3in)

The manufacturer reserves the right to make changes to the product range and specifications without prior notice.

Care and maintenance

Please carefully read the safety instructions and user manual before using this product. Otherwise, it may result in hazardous laser radiation and electric shock. Keep away from children. This is a class II laser product. Please DO NOT look directly into the beam with unprotected eyes or through an optical device at any time and never direct it toward other people. Do not remove any safety labels. Do not aim the device directly at the sun. Do not try to disassemble the device on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Protect the device from sudden impact and excessive mechanical force. Do not use the product in explosive environment or close to flammable materials. Store the device in a dry cool place. Only use accessories and spare parts for this device that comply with the technical specifications. Never attempt to operate a damaged device or a device with damaged electrical parts! If a part of the device or battery is swallowed, seek medical attention immediately.

Battery safety instructions

Always purchase the correct size and grade of battery most suitable for the intended use. Always replace the whole set of batteries at one time; taking care not to mix old and new ones, or batteries of different types. Clean the battery contacts and also those of the device prior to battery installation. Make sure the batteries are installed correctly with regard to polarity (+ and –). Remove batteries from equipment that is not to be used for an extended period of time. Remove used batteries promptly. Never short-circuit batteries as this may lead to high temperatures, leakage, or explosion. Never heat batteries in order to revive them. Do not disassemble batteries. Remember to switch off devices after use. Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning. Utilize used batteries as prescribed by your country’s laws.

Levenhuk International Lifetime Warranty

All Levenhuk telescopes, microscopes, binoculars, and other optical products, except for their accessories, carry a lifetime warranty against defects in materials and workmanship. A lifetime warranty is a guarantee on the lifetime of the product on the market. All Levenhuk accessories are warranted to be free of defects in materials and workmanship for six months from the purchase date. The warranty entitles you to the free repair or replacement of the Levenhuk product in any country where a Levenhuk office is located if all the warranty conditions are met. For further details, please visit: www.levenhuk.com/warranty If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch.

Levenhuk Inc. (USA): 928 E 124th Ave. Ste D, Tampa, FL 33612, USA, +1-813-468-3001, contact_us@levenhuk.comLevenhuk Optics s.r.o. (Europe): V Chotejně 700/7, 102 00 Prague 102, Czech Republic, +420 737-004-919, sales-info@levenhuk.czLevenhuk®, Ermenrich® are registered trademarks of Levenhuk, Inc. © 2006–2023 Levenhuk, Inc. All rights reserved. www.levenhuk.com 20221219