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World-Proven Precision and Durability
Sokkia B series automatic levels feature enhanced reliability under all environmental conditions. Tough and compact bodies are more tightly sealed against water, humidity and dust ( IPx6) . The B series levels provide quick setup, easy sighting, and superior durability against vibration and shock, ensuring the increased productivity over an extra-long period of time.
Features
Precise, Reliable Automatic Compensator
The B series levels incorporate the most precise and reliable compensator available in the market today. The technological superiority of the Sokkia automatic levels has been proven since the release of the best-selling B2 model in 1963. Four super-high-tensile suspension wires and magnetic damping system ensure accuracy and stability even when exposed to temperature changes, vibrations, or shock.
Superior Telescope
Optimally designed telescope provides exceptionally bright and sharp view that reduces operator' s eye strain. Ultra-short focus distance of 20cm ( 7.9in.) from end of telescope makes it easiest to use in confined locations.
Quick Collimation
Two knobs of endless horizontal motion drives can be operated with either hand for fast and easy aiming.
Horizontal Angle Measurement
Horizontal angles can be read in 1° or 1 gon units. Freely rotatable circle allows any angle reading from zero. Right angles can be quickly set for layout and alignment tasks. The readout window is conveniently located on the instrument base - directly below the eyepiece.
Stadia
The stadia lines on the reticle allow distance measurements. Simply multiply the staff length between the top and bottom stadia lines by 100.
Easy to Adjust
Reticle adjustment is made with one screw. Circular levels vial is adjusted with two screws. Both adjustments are simple and fast with provided tools.
Standard Equipment
B Series Automatic Level Instrument, Lens Cap, Plumb Bob, Vinyl Rain Cover, Cleaning Cloth, Tool Kit, Operator' s Manual, Hard Carrying Case, and Manufacturers 5-Year Limited Warranty.
Specifications
Model B30
Telescope
Length 215mm ( 8.46in.)
Magnification 28x
Objective aperture 36mm ( 1.42in.)
Resolving power 3.5 "
Field of View
( at 100m/ 328ft.) 1° 25'
( 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.)
