An eyepiece (usually adjacent to the main telescope) for reading the circle, often using an optical micrometer. Tribrach and Foot Screws: For setting the instrument level.
Whether you are a collector, a historical restoration enthusiast, or a surveyor working with vintage equipment, understanding how to operate, read, and maintain these mechanical masterpieces is essential. This comprehensive guide serves as a practical manual and technical reference for Hilger & Watts theodolites. 1. Company History and Legacy
Manual instructions for Hilger & Watts instruments generally follow these critical steps for accurate measurement: hilger watts theodolite manual
While the basic principles of surveying remain the same, the contains specific "constants" and lubrication charts unique to these British instruments. For example, the specific way the internal illumination system (using mirrors or battery lamps) interacts with the glass circles is unique to the Watts design. 6. Where to Find Manuals Today
The degrees, minutes, and seconds are then displayed and added to the reading [3]. 4. Basic Operation: Horizontal and Vertical Angles Measuring Horizontal Angles An eyepiece (usually adjacent to the main telescope)
Look at the sub-divisions. The main degree space is usually broken down into 10-minute or 20-minute intervals.
Always store the instrument in its original green metal or wooden carrying case. Ensure all clamps are lightly loosened when stored to prevent stress on the internal mechanical threads. 7. Troubleshooting Common Issues This comprehensive guide serves as a practical manual
: Detailed instructions on leveling and centering using the optical plummet. Reading Systems