عضویت 
ورود اعضا
راهنمای خرید
Automatic Levels0 pages
SURVEYING INSTRUMENTS
B20 B30 B40
AUTOMATIC LEVELS
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.
■ Precise, Reliable
Automatic Compensator
Pendulum
1
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-hightensile suspension wires and
magnetic damping system ensure
accuracy and stability even when
exposed to temperature changes,
vibrations, or shock.
Magnetic field is
generated in a
compensator.
4
…the eddy current
creates a force
against the
conductor’s motion.
Direction
of motion
Magnet
Conductor
2
When a conductor
moves…
3
…the motion generates
electro-magnetic induction
to produce eddy current in
the conductor, and…
■ 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
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.
■ Rapid, Easy Setup
■ 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. Two-speed focus knob switches between coarse and fine for
B20
B40
B20
B30
B40
even faster operation B30
(B20).
32x
28x
*30cm (1ft.) from instrument center
Telescope Telescope
24x
Telescope
0.7mm
Accuracy
1.5mm
Accuracy
2.0mm
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
B20
B30
can be seen on a pentaprism or plane
32x
28x
Telescope Telescope
mirror located beside the telescope
eyepiece.
B20
Telescope
B20
32x
Telescope
28x
Telescope
B30
1.5mm
Accuracy
Accuracy
B20
0.7mm
Accuracy
B20
0.7mm
B30
Accuracy
28x
Telescope
B30
Telescope
B20
0.7mm
Accuracy
32x
B20
B40
24x
B40
24x
Telescope
B30
1.5mm
Accuracy
B40
2.0mm
Accuracy
B20
32x
Telescope
B20
32x
Telescope
B30
B30
28x
Telescope
B30
1.5mm
Accuracy
B30
28x
Telescope
B40
24x
Telescope
B20
0.7mm
Accuracy
B20
0.7mm
Accuracy
B40
24x
Telescope
B40
2.0mm
Accuracy
B40
B40
B30
1.5mm
Accuracy
24x
Telescope
B40
2.0mm
Accuracy
B40
2.0mm
Accuracy
B30
1.5mm
Accuracy
B40
2.0mm
Accuracy
