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General| Brand | Topcon |
|---|---|
| Model | DT-309LG |
| Category | Laser Level |
| Language | English |
Defines symbols like WARNING, CAUTION, prohibited actions, and required actions for safety.
Lists critical warnings related to environmental hazards, disassembly, and direct sun observation.
Outlines general cautions for tripod use, carrying case handling, and instrument securing.
Details IP66 specifications and maintenance for waterproof and dustproof properties.
Warns against aiming the telescope directly at the sun to prevent internal damage.
Critical warnings about laser exposure, potential eye damage, and safe beam operation.
Cautions on checks, turning off the laser, avoiding pedestrian paths, and reflective surfaces.
Identifies and labels the components of the DT-302/305/307/309F/309G instrument.
Explains the function of each key on the instrument's operation panel.
Detailed procedure for centering the instrument over the survey point using the optical plummet.
Step-by-step guide for leveling the instrument using tripod legs and leveling screws.
Procedure for measuring horizontal and vertical angles to targets.
Procedure for performing repeated angle measurements for increased accuracy.
Describes how to check and adjust the plate level bubble for accurate leveling.
Instructions for checking and adjusting the circular level bubble.
Procedure for checking and adjusting the vertical cross-hair alignment.
Steps to check and adjust collimation for the telescope's line of sight.
Procedure for checking and adjusting the optical plummet's accuracy.
How to adjust the vertical angle zero point for accurate measurements.
Adjustment procedure for aligning the laser spot with the cross-hair intersection.
Lists error codes, their meanings, and recommended countermeasures for instrument issues.
Provides accuracy specifications for different models of the instrument.
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