Hilger Watts Theodolite Manual
Point the telescope toward a blank background (like the sky or a white wall).
Whether you have acquired a vintage Microptic No. 1, a Microptic No. 2, or a specialized Vernon instrument, having the right operational knowledge is essential. This comprehensive guide serves as an expanded manual overview, detailing the history, setup, reading methods, and maintenance of Hilger & Watts theodolites. 1. History and Legacy of Hilger & Watts
If you attempt to operate a Hilger Watts instrument without consulting the , you are likely to commit these common blunders:
The three-arm base incorporating three leveling footscrews and a circular spirit level for rough leveling. hilger watts theodolite manual
This feature solves the biggest problem with vintage Hilger & Watts manuals: It bridges the gap between a history book and a service manual.
Look through the small circle reading eyepiece located next to the telescope.
Here is an extensive guide to these timeless instruments, covering everything from operating principles to finding historical documentation. 1. Understanding the Hilger & Watts Legacy Point the telescope toward a blank background (like
By following the principles outlined in this guide and the original , these durable instruments can remain accurate for decades.
High-contrast, inverted or erect telescope images featuring crisp reticles.
Look at the lower micrometer window to read the remaining single minutes and exact seconds. Add the values together (e.g., Main Scale: , Micrometer: 6. Field Adjustments and Maintenance 2, or a specialized Vernon instrument, having the
Formed in 1948 through the merger of and E.R. Watts & Son , the company combined centuries of expertise in optical research and surveying metrology. Their manuals reflected this pedigree, offering rigorous instructions for instruments like the Microptic Transit Theodolite , which revolutionized the field with its compact design and glass-engraved scales. Essential Contents of the Manual
Employs a coincidence reading system that averages opposite sides of the glass circle to eliminate eccentricity errors.
Allowing for fast and accurate reading of circles [3].
Point the telescope toward a bright background (like the sky or a white sheet of paper) and rotate the eyepiece diopter until the reticle crosshairs are sharp and black. Then, use the main focusing knob to bring your target into clear focus.
Their theodolites were distinct for several reasons: