Sokkia DT5S User Manual

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SURVEYING INSTRUMENTS,';
SQKKIJ\ DT5/DT5S
DT5A/DT5AS
Electronic Digital Theodolite
OPERATOR'S MANUAL

Sokkia DT5S Specifications

General

Angle Measurement	Horizontal and Vertical
Angle Accuracy	5"
Angle Display (Least Count)	1"/5"
Magnification	30x
Objective Lens Aperture	45 mm
Telescope Image	Erect
Minimum Focusing Distance	1.3m
Operating Temperature Range	-20°C to +50°C
Display	Dual LCD
Distance Measurement	Not applicable

Summary

Precautions for Safe Operation

Instrument Safety Guidelines

Provides critical safety instructions for operating the digital theodolite.

Battery Safety Guidelines

Outlines essential safety precautions when using the instrument's battery.

Setting Up the Instrument

Centring and Levelling

Step-by-step guide to setting up the instrument accurately over a surveying point.

Focussing and Target Sighting

Instructions on how to focus the telescope and sight targets for measurement.

Angle Measurement

Reading Horizontal and Vertical Angles

Explains how to read the displayed horizontal and vertical angle values.

Setting Horizontal Angle to Zero

Measuring Angle Between Two Targets

Checks and Adjustments

Plate Levels Adjustment

Guide for adjusting the plate levels to ensure instrument accuracy.

Circular Level Adjustment

Reticle Adjustment

Steps to adjust the instrument's reticle for precise alignment.

Reticle Perpendicularity

Vertical and Horizontal Reticle Line Positions

Optical Plummet Adjustment