VERTICAL
MEASUREMENT FOUNDATION
4
Limit deviation of the plumb up
Limit deviation of the plumb down
Accuracy of tubular level
Optics and laser plumb (zenith)
Image inverted
Angle of view 1° 50’
Effective aperture of lens 36 mm
0,8 m
Laser wavelength 635 nm
Range of laser viewing 70 m
Laser range in the daytime<200m ; at night<250m
Laser power 5mW
Diameter of laser spot
Error of misalignmen of optical and
vertical axis is less than
5”
Error of misalignmen of optical and
laser axis is less than
5”
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