3 SYSTEM DESCRIPTION
8022965-17I6/2020-03-19|SICK
ORIGINAL OPERATING INSTRUCTIONS| VMS4200/5200 (Multicontroller)
Subject to change without notice
Fig. 52: Beam blockers for restricting the laser beams to the measuring range
▸
Attach beam blockers to the mounting frame to restrict LMS4x21 laser beams to the
application space.
NOTE! Detection of people or objects located outside the measuring range is not
permitted. This would otherwise distort the measurement result.
3.7.4 Object requirements
• Dimensionally stable (not deformable)
• Opaque surface (not transparent)
• Non-reflective surface (no shiny or reflective surface)
The radiance factor of the objects must be between 10% and max. 200%.
NOTE! Black objects with extremely low radiance factors (< 10%) cannot be measured
with high accuracy.
Object color Radiance factor [%]
Black cardboard 10
Blue 16
Red 75
White 98
Black with shiny tape 107
Beam restriction
Required object
properties
Radiance factor
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