Optical Quantrant СO-60 "tilt angle measurements" RARE USSR

Description

Quadrant KO-30 is designed to measure the angles of inclination of flat and cylindrical surfaces, for their installation at a given angle to the horizontal plane. It is used in laboratories and workshops of machine-building plants, in construction and other industries.
It is used to test:
angled surfaces of the templates;
sharpening angles on large cutting tools;
guide machines and support plates;
goniometer measuring instruments.
Peculiar properties :
easy to use, versatile;
has high accuracy;
features a slow-moving screw for precise installation;
it has an optical reading system;
has an outer scale for rough installation;
allows you to see both the main and micrometric scales in the eyepiece;
eliminates the error of eccentricity of the two-way reference system.
Technical parameters:
Microscope magnification 45X
Maximum permissible error of the quadrant ±30"
Measuring range of angles on the limb ±120°
The price of dividing the scale of the reference device 60"
The price of division of the main scale of the level 30"
The price of dividing the scale of the transverse level 4'
The price of division of the limb exact 60'
The price of division of the rough limb 1°
Deviation from the flatness of the base ≤0.01 mm
The length of the base of the device 148 mm
Operating temperature range -40°C to +50°C
Dimensions 155д×90ш×160V mm
Unit weight / laying of 3 kg / 4 kg
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