Read the single minutes and seconds directly from the separate micrometer scale window below it. 4. Field Observation Techniques
: High-quality glass circles illuminated by an external folding mirror or an optional battery-powered lamp. hilger watts theodolite manual
Finding an original manual requires some detective work. Here are the most effective avenues to explore: Read the single minutes and seconds directly from
While modern surveyors rely on GPS and robotic Total Stations, the mechanical brilliance of a mid-century Hilger & Watts instrument remains unmatched. They require no batteries, survive extreme environmental conditions, and utilize beautifully etched glass circles to measure horizontal and vertical angles with staggering precision. Core Component Anatomy Finding an original manual requires some detective work
One of the most defining characteristics highlighted in any Hilger Watts theodolite manual is the . Instead of reading degrees and minutes off a metal vernier, operators look through a dedicated reading eyepiece positioned near the main telescope. When you look through the reading eyepiece: