Copy at-B4 Auto Level Dumpy Level (AT-B4)

• Accuracy: 2mm
• Magnification: 24 ×
• Compensator: Magnetic
• Water Protection: IP66
• Transport Package: Standard Export Carton
• Specification: L*W*H: 215*130*135mm
• Model NO.: AT-B4
• Trademark: Neutro Packing
• Origin: China
• HS Code: 9015300000

Product Description

Copy AT-B4 Auto Level Dumpy Level (AT-B4)
 

Model		AT-B4	AT-B3	AT-B2
Telescope	Objective aperture	32mm(1.26 in)	36mm(1.42 in)	42mm(1.65 in)
	Magnification	24 ×	28 ×	32 ×
	Image	Erect
	Field of view	1°25'		1°20'
	Resolving power	4 .0"	3 .5"	3.0"
	Shortest focus	0.3m (1.0 ft)(from center of instrument)
	Stadia multiplication constant	100
	Stadia additive constant	0
	Coarse sighting	without	with	with
Compensator	Damping system	magnetic
	Working range	±15'
	Setting accurancy	0.5 "		0.3"
Leveling accurancy		2.0mm	1.5mm	1.0mm
Horizontal circle	Diameter	103mm(4.1in)
	Graduation/estimation	1°(1 gon)/ 0.1°((0.1 gon)
	Sensitivity of circular level	10'/2mm
	Horizontal fine motion screw	Double-sided endless drive
General	Water resistance	IP66
	Base	Concave and flat
	Base screw	¢5/8in
	Size(W*D*H)	215*130*135mm	215*130*140mm
	Weight	1.70kg		1.85kg
	Case	1.38kg

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