Automatic Level Sokkia B30 28X Pembesaran Lensa

Automatic Level Sokkia B30 Sokkia B30 automatic levels feature enhanced reliability under all environmental conditions. Tough and compact bodies are more tightly sealed against water, humidity and dust ( IPx6) . Sokkia B30 levels provide quick setup, easy sighting, and superior durability against vibration and shock, ensuring the increased productivity over an extra-long period of time. • Precise, Reliable Automatic Compensator • Superior Telescope • Quick Collimation • Horizontal Angle Measurement • Stadia lines on the reticle allow distance measurements • Rapid, East Setup • Easy to Adjust Specifications Sokkia B30 Telescope: • Length : 215mm ( 8.46in.) • Magnification : 28x • Objective aperture : 36mm ( 1.42in.) • Resolving power : 3.5" • Field of View : - ( 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.)