⑵ in a fixed, adjustable angle gauge indication error is not greater than ± 10 ② When the cursor " 0 " line is left at the left of the main scale " 0 " line, the degree is read out with the cursor " 0 ", and the score is read out with the left scale of the cursor " 0 " line Read out the degree, points said A, B measuring the angle of the clockwise turn Use: ⑴ loosen the screw, pull the V-shaped block along the base of guide wheel rotation, goal angle ⑵ use of principle of reading the cursor, the main scale on the of 1 °, cursor of 10 ' The " 0 " line on cursor is aligned with the " 0 " line on the main scale to indicate that A measurement plane is parallel to reference plane and the B reference plane is perpendicular to the reference plane ① When cursor " 0 " line is on the right side of main scale " 0 " line, the degree is read out with the cursor " 0 " line, and the score is read out with scale of the right of cursor " 0 " line A, B measuring surface counterclockwise turn the angle Technical indicators: ( 1) When measuring surface A is parallel to base surface and measuring surface B is perpendicular to the datum plane, " 0 " line of the cursor does not coincide with main scale " 0 " line is greater than 3 ', and curvature of both ends of the cursor is different from the main scale The degree of coincidence is not greater than 5 '; the other hand, tighten the screw so that the main scale 0 ° line and the cursor " 0 " line alignment, A measurement surface and the reference plane pa, Manufacturer: Kaeltsyn