David White LT6-900N User Manual

L6-20N Level and
LT6-900N Level-Transit
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L6-20N Level (Model 44-8824)
LT6-900N Level-Transit (Model 44-8834)
For customer service, call (815) 432-9200
L6-20N / LT6-900N Owner's Guide
00-8830-810

David White LT6-900N Specifications

General

Brand	David White
Model	LT6-900N
Category	Laser Level
Language	English

Summary

Specifications

TELESCOPE

Detailed specifications for the telescope, including power, length, and field of view.

HORIZONTAL CIRCLE

Specifications for the horizontal circle's graduation diameter, graduations, numbers, and vernier.

VERTICAL ARC (LT6-900N only)

Specifications for the vertical arc's graduations and numbers for the LT6-900N model.

CENTER

Specification for the instrument's center bearing type.

LEVEL VIAL

Specification for the instrument's level vial sensitivity.

WEIGHT

Weight specifications for the instrument and its case for both models.

CASE

Specification for the instrument's carrying case material.

TRIPOD

Specification for the compatible tripod thread size.

General Description

Setting up your instrument

LEVELING THE THREE SCREW INSTRUMENT

Step-by-step guide for leveling the instrument using three leveling screws.

BUBBLE ADJUSTMENTS

Procedure for adjusting the instrument's leveling bubble for accurate readings.

Reading the circle and vernier

Sighting and focusing the telescope

Guidance on aiming, focusing, and obtaining precise sightings with the telescope.

Removing the instrument from the tripod

Care and handling

Using your instrument

Levels and level-transits

Lists common applications for levels and level-transits in various jobs.

Determining differences in elevation

Explains how to measure elevation differences using the instrument.

Running straight lines with a level

Procedure for establishing and maintaining straight lines using the instrument.

Determining contour lines

Technique for mapping contour lines to represent changes in elevation.

Measuring and laying out angles

Laying out a swimming pool

Practical example demonstrating layout of a swimming pool using angle measurements.

Using your instrument (Level-transits)

Running straight lines with a level-transit

Efficient method for establishing straight lines using a level-transit.

Establishing vertical lines and planes

Procedures for establishing vertical lines and planes with the level-transit.

Instrument service and repair

Checking for calibration

Limited Lifetime Warranty