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Home » Products » Survey & Drawing Instruments » Surveying automatic level

Surveying automatic level

Surveying automatic level
Surveying automatic level
Product Code : 15
Brand Name : Sokkia
Product Description

Sokkia Auto Level B-30

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.

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.

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 1o or 1gon 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.

Superior Telescope

Optimally designed telescope provides exceptionally bright and sharp view that operator's eye strain. Ultra-short focus distance of 20cm(7.9 in) from end of telescope makes it easier to use in confined locations. Two-speed focus knob switches between coarse and fine for even faster operation(B20)

Rapid, Easy Setup

A domed-head tripod makes setting up faster and easier even on inclined, uneven grounds. The B series levels also fit flat-head tripods. The circular level can be seen on a pentaprism or plane mirror located beside the telescope eyepiece

Technical Specifications

Model

B30

Telescope


Length

215mm(8.46 in)

Magnification

28x

Objective aperture

36mm(1.42in)

Resolving power

3.5

Field of view (at 100m/328ft)

1o25'(2.5m/8.2ft)

Minimum focus

0.2m(7.9 in) 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

With out micrometer

1.5 mm(0.06in)

With micrometer


Compensator

Type

Pendulum compensator with magnetic damping system

Setting accuracy

0.5

Working range

+15'

Circular Level

Sensitivity

10'/2 mm

Mirror

Plane mirror

Horizontal Circle

Diameter

103mm(4.1 in)

Graduations

1o/1gon

General

Horizontal motion drive

Clampless, endless, double-sided knobs

Water resistance

Ipx6 (IEC 60529:2001)

Operating temperature

-20 to +50oC(-4 to 122oF)

Size


Width

130mm(5.12 in)

Length

215mm(8.46in)

Height

140mm(5.51in)

Weight

1.7kg(3.7 lb)

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 level vial is adjusted with two screws. Both adjustments are simple and fast with provided tools.

Options

DE16/DE22 Diagonal Eyepiece

A diagonal eyepiece facilitates work in tight spots with little space behind the instrument

EL5 40X Removable Eyepiece(B2o)

Increases the standard 32x magnification to 40x

OM5/OM5F Parallel Plate Micrometer (B2o)

To achieve the highest precision with top-of-the line B20 model, the optional parallel plate micrometer OM5 allows for staff readings in increments of 0.1mm(estimation to 0.01mm). Accuracy for 1km double run leveling can be increased from 0.7mm to 0.5mm. Imperial version OM5F has 0.001ft. Graduations

Standard Equipment

Instrument, lens cap, plumb bob, vinyl cover, cleaning cloth, tool kit, operator's manual, and carrying case.


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