Zero-correction bits will be placed on the instrument calibration stage water level adjustment, adjust the center circle and bubble leveling instrument, if compensator compensation range is 30 "Level the instrument, but the error is 10", the compensator is not working properly, then prove that the compensation in need of zero calibration, compensation is just below a row of four screws, the middle two letters paint immobile, two screws on both sides can be adjusted to compensate the zero bit. Second, the composition of automatic Anping Level 1) objective lens 2) optical micrometer according to installation positioning index 3) reticle illumination window 4 feet) Sight 5) telescope eyepiece 6) Horizontal circle reading eyepiece 7) Circular level 8) Circular level device mirrors 9) eyepiece cap 10) Focusing knob 11) Horizontal drive screw 12) leveling screws 13) Level the base plate of domestic Level, automatic Anping compensator lens according to the structure can be divided into activities, events crosshair and suspension prisms and other. Compensation device has a "put" Level, when a slight tilt telescope sight, the compensation element will produce swing, for the "pendulum" swings can be stabilized as soon as possible, be fitted with an air damper or magnetic damper. This instrument representing leaning Level high efficiency, accuracy and stability, especially in working more significant in windy and temperature changes in the region. New Level _ Branch of the Instrument (certified) _ Level provided by the Qingdao Branch of the Instrument Co., Ltd. Qingdao Branch of the Instrument Co., Ltd. (www.qdjk17.com) is in Qingdao, Shandong analysis instruments leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Branch of the Instrument in leadership with the staff warmly welcome all inquiries negotiations to create the Branch of the Instrument better future.