Hilger Watts Theodolite Manual !full! -

Read the primary degrees and tens of minutes from the main scale, then add the single minutes and seconds indicated on the sub-micrometer scale. 4. Maintenance, Storage, and Calibration

| Problem | Probable Cause (per manual) | Solution | | :--- | :--- | :--- | | | Clamp screw is over-tightened or dirt in the lower motion | Loosen clamp, use tangent screw (max 1 turn) | | Double vision in the micrometer | Interference in the optical prism | Clean external optics; internal requires a specialist | | Bubble won't center | Adjustment screws have shifted | Use the manual's "peg adjustment" method (two screws on the level vial) | | Graduations blurry | Incorrect focus of the reading microscope | Turn the knurled ring around the reading eyepiece |

Rotate the upper part of the instrument (the alidade) until the long plate bubble vial is parallel to two of your three foot-screws.

To help me tailor this guide or find specific technical diagrams, could you share a few details? hilger watts theodolite manual

Hilger & Watts was a leading British manufacturer of scientific and surveying instruments, born from the merger of two pioneering companies in 1948: Adam Hilger Ltd (established in 1874) and E. R. Watts & Son (founded in 1865). This union combined a rich history of instrument-making expertise.

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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: Read the primary degrees and tens of minutes

Features three leveling footscrews and a circular spirit level for rough leveling, paired with a highly sensitive plate bubble vial for fine leveling.

A typical Hilger & Watts theodolite consists of several key systems, which are detailed in its manual:

These instruments are optical-mechanical precision tools [3]. To help me tailor this guide or find

Direct reading to 1 second of arc using an internal optical micrometer.

A higher-precision instrument often used for geodetic networks, triangulation, and precise industrial alignment.

Secure the theodolite tribrach to the tripod head using the central fastening screw.

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