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Topcon AT B4 Auto Level Suppliers | Topcon AT B4 Auto Level Exporters India

Topcon AT B4 Auto Level

Topcon AT B4 Auto Level Manufacturers

AT B series, AT-B4, AT-B3, AT-B2, AT4

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  AT-B2 AT-B3 AT-B4
Telescope
Length 215mm (8.46 in.)
Magnification 32X 28X 24X
Objective Aperture 42mm (1.65 in.) 36mm (1.42 in.) 32mm (1.26 in.)
Resolving Power 3” 3.5” 4”
Field of View (at 100m/32ft.) 1°20' (2.3m / 7.5ft.) 1° (2.5m / 8.2ft.)
Minimum Focus 0.2m (7.9 in.) from end of telescope
0.3m (1ft.) 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 0.7mm (0.03 in.) 1.5mm (0.06 in.) 2.0mm (0.08 in.)
With Micrometer 0.5mm (0.02 in.) 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 103mm (4.1 in.)
Minimum Division 1°/1gon
General
Water Resistance IPX6 (IEC 60529:2001)
Operating Temperature -20°C to +50°C (-4°F to +122°F)
Size Width 130mm (5.12 in.)
Length 215mm (8.46 in.)
Height 140mm (5.51 in.) 135mm (5.31 in.)
Weight 1.85kg (4.1 lbs.) 1.7kg (3.7 lbs.)

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