Automatic Level Sokkia B30 28x pembesaran

Sokkia B30 Specifications Sokkia B30 Telescope • Length: 215mm ( 8.46in.) • Magnification: 28x • Objective aperture: 36mm ( 1.42in.) • Resolving power: 3.5" • Field of View: 1° 25' - ( at 100m/ 328ft.) : ( 2.5m / 8.2ft.) • Minimum focus: 0.2m ( 7.9in.) from end of telescope, 0.3m ( 1ft.) from instrument center • Image: Erect • Reticle pattern: Cross line • Stadia constant: 0 • Stadia ratio: 100 • Focusing knob: 1-speed • Sighting aid: Peep sight • Lens hood: - Accuracy ( standard deviation for 1km double run leveling) • Without micrometer: 1.5mm ( 0.06in.) • With micrometer: - Compensator • Type: Pendulum compensator with magnetic damping system • Setting accuracy: 0.5" • Working range: ± 15' Circular level • Sensitivity: 10' / 2mm • Mirror: Plane mirror Horizontal circle • Diameter: 103mm ( 4.1 in.) • Graduations: 1° / 1gon General • Horizontal motion drive: Clampless, endless, double-sided knobs • Water resistance: IPX6 ( EC 60529: 2001) • Operating temperature: -20 to + 50° C ( -4 to + 122° F) • Width: 130mm ( 5.12in.) • Length: 215mm ( 8.46in.) • Height: 140mm ( 5.51in.) • Weight: 1.7kg ( 3.7 lb.)