Optical Quantrant СO-10 "tilt angle measurements" VERY RARE USSR 1969 year

Description

Technical parameters
Quadrant optical CO-10
This device can also be called: KO 10, KO10, ko-10, ko 10, ko10.
KO-10 quadrant optical is designed to measure the angles of inclination of flat and cylindrical surfaces and to install them at a given angle to the horizontal plane.
KO-10 quadrants are used in laboratories of research institutes, machine-building enterprises, construction organizations, and other sectors of the national economy.
Technical characteristics of KO-10:
the
range of measurement of angles on the limb - from 0° to 360°.
Limits of permissible absolute measurement error - ±10".
The price of dividing the scale of the reading device is 10".
The price of dividing the main level scale is 15".
The price of dividing the cross - level scale is 4'.
The price of dividing the limb scale is 20'.
The price of dividing the external scale is 5°.
Execution is normal.
Installed full resource - at least 6000 hours.
The established service life is at least 6 years.
Overall dimensions of KO-10 - no more than 165×120×165 mm.
The length of the quadrant base is at least 120 mm.
Weight:
- quadrant - no more than 3.4 kg;
- set with laying - no more than 6 kg.
Structurally, the quadrant consists of the following main parts:
- optical device;
- outer casing with an eyepiece;
- level block;
- footings.
Operating conditions of KO-10: ambient
temperature - from -10° C to +40° C.
Relative humidity - 80%.
The principle of operation is that the reading of the angle of inclination of the base relative to the level axis is made on a glass limb using a reading microscope. Works in both natural and artificial light.
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