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Automatic Level Sokkia B40

Model: Automatic Level Sokkia B40

General Introduction: 24x magnification, 2.0mm accuracy per 1km double run

Details

Specifications

Model	B20	B30	B40
Telescope
Length	8.46 in. (215mm)	8.46 in. (215mm)	8.46 in. (215mm)
Magnification	32x	28x	24x
Objective Aperture	1.65 in. (42mm)	1.42 in. (36mm)	1.26 in. (32mm)
Resolving Power	3"	3.5"	4"
Field of View @328ft/100m	1°20' (7.5ft/2.3m)	1°25' (8.2ft/2.5m)	1°25' (8.2ft/2.5m)
Minimum Focus (from end of telescope)	7.9 in. (0.2m)	7.9 in. (0.2m)	7.9 in. (0.2m)
Image	Erect	Erect	Erect
Recticle Pattern	Wedge	Cross Line	Cross Line
Stadia Constant	0	0	0
Stadia Ratio	100	100	100
Focusing Knob	2-Speed	1-Speed	1-Speed
Sighting Aid	Peep Sight	Peep Sight	Gun Sight
Lens Hood	Retractable	N/A	N/A
Accuracy (standard deviation for 1km double run leveling)
Without Micrometer	0.03 in. (0.7mm)	0.06 in. (1.5mm)	0.08 in. (2.0mm)
With Micrometer	0.02 in. (0.5mm)	N/A	N/A
Compensator
Type	Pendulum compensator with magnetic damping system
Setting Accuracy	0.3"	0.5"
Working Range	± 15'
Circular Level
Sensitivity	10'/2mm
Mirror	Pentaprism	Plane Mirror
Horizontal Circle
Diameter	4.1 in. (103mm)
Graduations	1°/1gon
General
Horizontal Motion Drive	Clampless, endless, double-sided knobs
Water Resistance	IPX6 (IEC 60529:2001)
Operating Temperature	-4 to +122°F (-20 to +50°C)
Size
Width	5.12 in. (130mm)
Length	8.46 in. (215mm)
Height	5.51 in. (140mm)	5.31 in. (135mm)
Weight	4.1 lb (1.85kg)	3.7 lb (1.7kg)/3.3 lb (1.5kg)