Targeting (1) eyepiece focus: release the brake screw, turn the telescope bright background (eg: Sky), turn the eyepiece light spiral to make the reticle image clarity (2) The initial aim: through an optical telescope tube above the sighting is aimed ruler Sokkia Level, tighten the brake spiral. (3) The objective focus: Turn the focusing knob, so the scale of image clarity. (4) precision targeting: Turn micro handwheel water level, so the scale imaging center in the field of view. Level of use include: Level of placement, coarse level, targeting, fine flat, reading five steps. For automatic levelizer, the fine level of step can be omitted. Specific steps are as follows readings in line with Level quote immediately with crosshairs on the ruler in the wire after reading level is centered. Readings from small to large numbers when the number of read, if you see the image from the telescope is rather like the standard ruler in the foot should be read from top to bottom; if a positive, that is read from the bottom up. Direct read meters, decimeter and centimeter Level of use and estimated reads mm, a total of four digits. Reading and then check compliance with standards of the bubble is centered, if the center should be leveled again, re-read water level instrumentation _ _ Jinke Level by Level Instrument Co., Ltd. Qingdao Branch. "Surveying instruments, analytical instruments, testing equipment, flow meters, optical instruments, temperature instruments," Preferred Instrument Co., Ltd. Qingdao Branch (2), the company is located at: Qingdao Renmin Road, 133-102, over the years, Jinke Instruments instrumentation to provide customers the best quality service, contact: Li Yongjie. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Jinke instrumentation expect to be your long term partner!