Hilger Watts Theodolite Manual

If tangent screws or focusing rings feel gritty, do not force them. The original lubricants used by Hilger & Watts can harden over many decades. A professional technician must strip down the component, clean it with an approved solvent, and apply a modern micro-instrument grease.

: A small, fold-out mirror below the signature would catch the sunlight, illuminating the finely engraved glass circles.

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

Use the optical plummet to shift the tripod legs until the crosshairs are roughly over the ground mark. hilger watts theodolite manual

Use the horizontal and vertical tangent screws to bring the center crosshair onto the precise point of your target. Step 4: Reading the Glass Circles

Using a Microptic Theodolite as an example:

Despite its high degree of accuracy and reliability, the Hilger Watts theodolite may occasionally encounter problems or errors. Here are some common issues and their solutions: If tangent screws or focusing rings feel gritty,

Turn the theodolite until the long plate bubble is parallel to two of the three leveling footscrews.

Proper setup is crucial for accuracy. Following the procedures ensures a stable instrument.

Online communities such as The Surveying Forum or specific vintage machinery groups on Facebook and Reddit are excellent resources. Members frequently share digitized manual copies or provide step-by-step troubleshooting for specific model variations. : A small, fold-out mirror below the signature

However, finding a comprehensive can be a challenge. This article serves as a guide for operating, adjusting, and maintaining these vintage surveying instruments. 1. Introduction to Hilger & Watts Theodolites

A rudimentary external sight mounted on top of the telescope for rapid initial targeting. 2. The Reading System (Microptic Eyepiece)

Formed in February 1948 through the merger of (est. 1874) and E.R. Watts & Son (est. 1856), the company became a global leader in scientific and surveying instrumentation. Their instruments, particularly the "Microptic" series, were standardized for use by the British military and colonial surveying departments. Popular Models & Their Features