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Brunson 771 User Manual

Brunson 771
63 pages
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Models 771, 75, & 76-RH
Optical Tooling Transits
Instrument
Company
Operation and
Field Adjustment Manual
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Brunson 771 Specifications

General IconGeneral
BrandBrunson
Model771
CategoryMeasuring Instruments
LanguageEnglish

Summary

Getting Started with Your Transit

Transit Handling and Care

Provides essential guidelines for safely handling and maintaining the transit.

Measuring Techniques

"Bucking in" Procedure

Describes aligning the transit to a line defined by two reference targets.

Autocollimation for Accuracy

Details achieving ultimate accuracy by aligning with one's own reflection.

Collimation for Parallel Sights

Describes aligning two telescopes to have parallel lines of sight.

Using Optical Micrometers

Explains using optical micrometers for precise lateral measurements.

Field Calibration Checks

"Double Center" Check Method

A comprehensive check that can replace several individual calibration tests.

Cross-axis Collimation

Checks if the cross-axis telescope line of sight is parallel to the horizontal axis.