W550-F4 Three Combination Sets of the Calibration Station

Three Combination Sets of the Calibration Station The main technical parameters of fission combined surveying and mapping instruments comprehensive calibration station of W550-F4.Four parallel light pipes (Including the horizontal axis elevation, horizontal Angle, depression angle, three parallel light pipes and a rear view Level of tube light)Features:• The length of parallel light pipe barrel: 565mm• Effective aperture: 55mm• Focal length: 550mm• Precision (Reticle lattice value): 20”• Parallel light pipe adjustment range: 1100mm• The horizontal axis ≥30′• The vertical shaft≥30′• Maximum load bearing of lifting platform: 340kg• Observation distance: ≥1200mm• Magnification ratio: 5.7~7 times• Angle of view: 10°20′• Forward-looking total height: 2200mm• Resolution: 3″• Total weight: 340kg• Level sensitivity• Base circular bubble leveling instrument: △≤8″/2mm• Power supply voltage: 3.4~4.2V 2.1W• Switching power supply: I=10A• Lighting: Cold light source (The intensity of trimming) Retu