Description
Brunson M190-W Model 190 Single-Axis Optical Micrometer
From the manufacturer:
The 190 optical micrometer translates the line of sight laterally with an accuracy of ±0.0005″ using an optical flat. The cast aluminum housing has a 1.655" opening to fit the telescope barrel of all Brunson optical tooling transits and levels. Adapters are available which allow this micrometer to be used with a variety of theodolites as well. Any of four machined slots in the housing (located at the 12, 3, 6, and 9 o’clock positions) fit over a locating pin on Brunson telescope barrels for quick and accurate indexing of the micrometer to a horizontal or vertical position. A precision glass window acts as a dust cover to protect the optical flat inside. Refer to the table below for descriptions of the various models in this series.
Micrometer for Leica T-2 theodolite. We have adapted our 190 for use with the Leica T-2). This micrometer has been modified with a larger bore to fit the Leica telescope barrel, and is finished with grey polyurethane paint.
May be used with:
- 76-RH Transit
- 545-x Precision Tilting Level
- 15206 Micrometer Adapter
- 75-H Transit
- 771-H Transit
- 376RHN Transit
This item has been visually inspected and it appears to be in good condition. It was pulled from a working environment but has not been tested at our facility. Please view our photo set and contact us with any questions.