Purpose
The instrument is suitable to calibrate and check all kinds of inclinometers to determine measurement accuracy of dip angle and azimuth angle of inclinometers.
Main technical characteristic
1. Each scale division of dip angle dial is 1°; error among scale divisions is not more than ±3′; measurement error using a vernier: ＜±6′;
2. Each scale division of azimuth angle dial is 2°; error among scale divisions is not more than ±3′; measurement error using a vernier: ＜±12′;
3. Sensitivity of water level bubble is 4′; Error: ＜±20%;
4. It can clamp inclinometer with a diameter of φ62-φ76 mm;
5. The non-verticality error between the horizontal axle and central axle and between the vertical axle and the central axle is less than 12′;