Surveying instruments, measuring ground water level measurement point elevation work, called height measurement. Leveling is one of the basic work measurement. Leveling Surveying by instruments and methods used by the different level water level can be divided into leveling, trigonometric leveling, GPS height measurement and pressure elevation measurements. Leveling is the highest elevation accuracy of a measurement method, which is widely used in national vertical control survey, engineering, surveying and construction measurement. Leveling principle is to use eye level Level provided readings erected on two points on the standard ruler to measure the height difference between two points, and then calculate point elevation determined according to the known point elevation. Su Light Level (automatic level) is defined within a certain range of the vertical axis tilt when compensating automatically get eye level leveler leveling staff readings. When using an automated Anping compensation instead of tubular vial, when the instrument is leaning compensation by gravity with respect to the telescope tube to move, so that the correct reading at eye level on the scale of compensation still falls after the adoption of the horizontal cross-hairs. When observing the use of such water level, when the circular level is centered the instrument is flat, without further manual adjustments can be read by reading the time was eye level. It simplifies operating procedures, improve operating speed, to reduce measurement error caused by changes in ambient conditions using: resettlement instrument mounted tripod ① choose a solid, flat surface with open water level precision tripod, so the first substantially horizontal frame, medium height; three planes leg opening of the appropriate, if the ground is soft, then the frame legs of the three toes inserted firmly in the soil, so that the tripod is stable. ② resettlement instrument with both hands to open the instrument case out the instrument water level, water level maintenance on the tripod stand head, one hand holding the instrument in one hand and rotating tripod center screw connection, the instrument is fixedly connected to the tripod stand head. ③ observe carefully observe the various components of the instrument familiar instruments, familiar with the spiral position, name and function of each screw is screwed try to understand their function calibration Level, Level, Jinke instruments provided by the Qingdao Branch of the Instrument Co., Ltd. Qingdao Branch of the Instrument Co., Ltd. (www.qdjk17.com) strong, credible, in Qingdao, Shandong analytical instruments industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinke instrument into the brilliant and you work for a better future!