ACK small Angle tester is a high precision small Angle measuring instrument, used to verify and calibrate the Angle error of frame type level, strip type level, image level, electronic level, autocollimator and other instruments.

This instrument adopts high-precision grating is a high accuracy length gauge as measuring datum, replacing the gage block as the benchmark measurement method, reduce the external factors affect the measurement result, simple operation, quick, users only need to input the information of test instrument and press the 'start verification', the instrument will be in accordance with the procedures to automatically generate standard Angle, Perform a simple operation on the verified level, and then input the read verified value error or error data on the touch screen interface. The instrument will automatically calculate the verification data and judge the verification result automatically according to the regulations. The verification process is simple and the verification efficiency is improved obviously.