Hilger Watts Theodolite: Manual

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Add the main scale reading to the fractional estimation to find your final angle. Reading a Microptic No. 2 (1-Second Instrument)

Built into the lower optical housing or tribrach, replacing the traditional plumb bob for centering the instrument perfectly over a ground station mark. Step-by-Step Setup Guide hilger watts theodolite manual

Main scales and micrometer graduated directly to 1 second of arc. 2. Set-Up and Leveling Procedures

Hilger & Watts produced several distinct families of theodolites to cater to different precision requirements, ranging from construction layouts to primary geodetic triangulation. : Add the main scale reading to the

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:

: High-quality technical illustrations that provide a "X-ray view" of the internal prisms and light paths. User Experience Formed by the merger of Adam Hilger Ltd and E

Adjust the microscope eyepiece to see the scale clearly [3].

Turn these screws in opposite directions to center the bubble.

If the crosshair is not perfectly centered over the ground mark, slightly loosen the central tripod fixing screw.

Firmly plant the legs into the ground over your survey marker.