Hilger Watts Theodolite Manual _top_ (2027)

Carefully lift the theodolite from its wooden or metal transit case by its frame (never by the telescope barrel).

Depending on whether you are using a No. 1 (one-minute resolution) or a No. 2 (one-second resolution) instrument, use the optical micrometer knob on the side of the standard to align the main scale division with the reading index lines.

Coincidence reading system that averages opposite sides of the glass circle to eliminate eccentricity errors. Hilger & Watts Vernier Theodolites Purpose: Legacy construction and education. hilger watts theodolite manual

The Hilger Watts theodolite manual should include detailed instructions on:

Turn the until the upper split graduation lines align perfectly with each other. Carefully lift the theodolite from its wooden or

: Heat waves that cause irregular refraction, making your target dance.

Formed by the merger of Adam Hilger Ltd and E.R. Watts & Son Ltd, Hilger & Watts produced high-quality optical surveying instruments throughout the mid-20th century [1]. Their theodolites, particularly the Microptic series, were favored for their: The Hilger Watts theodolite manual should include detailed

Three-screw tribrach, often featuring an integrated optical plummet.