Theodolite Manual Fixed - Hilger Watts
The Hilger & Watts Microptic theodolite is a precision optical-mechanical instrument, featuring a transit telescope and internal glass circles for measuring vertical and horizontal angles. Key operations include precise leveling, using optical plummets for centering, and taking both face-left and face-right measurements to eliminate instrumental errors. You can find a PDF of the manual at wakanokumot.weebly.com. Microptic transit theodolite, 1954
The Night Shift: For work in tunnels or after dusk, the manual described a battery-powered lamp that could replace the mirror, turning the theodolite into a glowing beacon of math in the dark. 4. Battles Against Nature hilger watts theodolite manual
Following these steps precisely—exactly as written in the Hilger Watts theodolite manual—can restore an instrument from being a paperweight to being accurate to within a few arc-seconds. The Hilger & Watts Microptic theodolite is a
Hilger & Watts Microptic Theodolite is a precision optical instrument manufactured from the late 1940s through the 1960s. These instruments are renowned for their compact design , weighing approximately 9 pounds (4 kg), and their use of etched glass circles for high-accuracy angle measurement. Science Museum Group Collection Key Specifications and Models Model No. 1 Diagnosis: Variation when rotating the circle without sight
- Diagnosis: Variation when rotating the circle without sight change.
- Correction: Note and average readings or send for re-graduation/service.
- Zenith Angle < 90° → Elevation = 90° - Zenith Angle.
- Zenith Angle > 90° → Depression = Zenith Angle - 90°.