Theodolite Manual [better] | Hilger Watts

Geodetic surveying, triangulation, high-precision industrial alignment, and laboratory metrology.

Rotate back to the original position to verify, and repeat if necessary until the bubble remains centered in all directions. 4. Reading the Microptic Optical Scales

Never touch the glass lenses with your fingers. Use a soft camel-hair brush to blow away abrasive dust, and clean with pure optical lens tissue dampened with a drop of specialized lens cleaning solution. hilger watts theodolite manual

Unlike modern digital theodolites, Hilger Watts models use a complex optical micrometer to interpolate between the graduation marks on the glass circles. The manual provides the exact procedure for:

The stamped on your theodolite (e.g., Microptic No. 1, No. 2, or a specific serial number code). Reading the Microptic Optical Scales Never touch the

For those who own a vintage Hilger & Watts theodolite, the manual is indispensable. It bridges the gap between a "beautiful brass object" and a working scientific tool. It provides the specific specifications—such as magnification power and plate vial sensitivity—that define the instrument's capabilities. Pros and Cons

You will see two scales—typically the upper scale represents the Vertical circle (V) and the lower scale represents the Horizontal circle (H). The manual provides the exact procedure for: The

Used to sight the target. Features a focusing ring and an adjustable eyepiece to focus the internal crosshairs (reticle).