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TELESCOPE
Length
Magnification
Objective Aperture
Resolving Power
Field of view
(at 100 m)
Minimum Focus
Image
Stadia Constant
Stadia Ratio
Focusing Knob
Sighting Aid
ACCurACy (1km double run leveling)
Without Micrometer
With Micrometer
COmPEnSATOr
Type
Setting Accuracy
Working Range
CirCuLAr LEvEL
Sensitivity
HOrizOnTAL CirCLE
Diameter
Minimum Division
GEnErAL
Water Resistance
Operating Temperature
Size (W x L x H)
Weight
* all technical changes are reserved by TOPCON, 07/2010
SPECIFICATIONS*
AT-B2
215 mm
32X
42 mm
3"
1°20'
(2.3 m)
0.2 m from end of telescope
0.3 m from instrument center
Erect
0
100
2-speed
Peep Sight
0.7 mm
0.5 mm
Pendulum compensator with magnetic
damping system
0.3"
±15'
10' / 2mm
103 mm
1°/ 1gon
IPX6 (IEC 60529:2001)
–20ºC to +50ºC
130 mm x 215 mm x 140 mm
1.85 kg
AT-B3
AT-B4
28X
24X
36 mm
32 mm
3.5"
4"
1°25'
(2.5 m)
1-speed
Gun Sight
1.5 mm
2.0 mm
n/a
0.5"
H: 135 mm
1.7 kg
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