SPECIFICATIONS*
TELESCOPE
AT-B2
AT-B3
AT-B4
Length
215 mm
Magnification
32X
28X
24X
Objective Aperture
42 mm
36 mm
32 mm
Resolving Power
3“
3.5“
4“
Field of view
1°20‘
1°25‘
(at 100 m)
(2.3 m)
(2.5 m)
Minimum Focus
0.2 m from end of telescope
0.3 m from instrument center
Image
Erect
Stadia Constant
0
Stadia Ratio
100
Focusing Knob
2-speed
1-speed
Sighting Aid
Peep Sight
Gun Sight
ACCurACy (1km double run leveling)
Without Micrometer
0.7 mm
1.5 mm
2.0 mm
With Micrometer
0.5 mm
n/a
COmPEnSATOr
Type
Pendulum compensator with magnetic
damping system
Setting Accuracy
0.3“
0.5“
Working Range
±15‘
CirCuLAr LEvEL
Sensitivity
10‘ / 2mm
HOrizOnTAL CirCLE
Diameter
103 mm
Minimum Division
1°/ 1gon
GEnErAL
Water Resistance
IPX6 (IEC 60529:2001)
Operating Temperature
–20ºC to +50ºC
Size (W x L x H)
130 mm x 215 mm x 140 mm
H: 135 mm
Weight
1.85 kg
1.7 kg
AUTO LEVEL
Durable, Dependable,
Precise Auto Levels
n
3 Models - 32x, 28x and
24x Magnifications
n
Rapid, Accurate, and Stable
Automatic Compensation
n
Ultra-Short 20cm Focusing
n
All-Weather Dependability
n
Endless Fine Horizontal
Adjustments
AT-B
Series
Your local authorised Topcon distributor is:
* all technical changes are reserved by TOPCON, 07/2010
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The Leader in Positioning Technology ...
Topcon is the worldwide leading developer and manufacturer of
precision positioning equipment and offers the widest selection
of innovative precision GPS systems, laser, optical surveying,
machine control, GIS and agriculture products.
T205EN - English - A
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