Hilger Watts - Theodolite Manual Hot!

series, which are characterized by their compact design and optical reading systems. While original printed manuals are vintage items, you can find digital reprints or specific operating instructions through specialized archives and collectors. Science Museum Group Collection Accessing Manuals and Technical Guides Vintage Machinery Archive

To achieve the sub-second accuracy these instruments are capable of, follow a strict, methodical set-up routine.

Read the main degree and tens-of-minutes value from the main window.

Single-reading system (views one side of the circle at a time). hilger watts theodolite manual

This is a comprehensive guide to operating and understanding the (specifically the popular Watts No. 1 and No. 2 models). These are classic British surveying instruments from the mid-20th century, renowned for their precision and tank-like durability.

Employs a coincidence reading system that averages opposite sides of the glass circle to eliminate eccentricity errors.

Resilient brass and aluminum alloy housings built to withstand extreme field conditions. series, which are characterized by their compact design

The No. 2 model employs an internal knob located on the side of the standard.

If the bubble does not stay centered during a 360-degree rotation, bring it back halfway using the footscrews, and the other half using the small capstan screws on the bubble housing itself.

For specialized meteorological instruments like the Mark V Pilot Balloon Theodolite, the UK Met Office archives house printed instruction manuals. Read the main degree and tens-of-minutes value from

: The upper part of the instrument that rotates on the vertical axis and contains the telescope and vertical circle.

Refocus the crosshairs against a plain background before aiming at the target. Dried-out whale oil or grease