Determining minimum distance from reflective surfaces with automated calibration of
t
he protective field width
The minimum distance can be determined as follows:
b
Determine the distance between sender and receiver D in meters (m).
b
Read the minimum distance a in millimeters (mm) in the graph or calculate using
the respective formula to determine the minimum distance to reflective surfaces:
1000
900
800
700
600
14 16 18 20 22 242 4 6 8 10 12
500
400
300
200
100
0
0
D/m
a/mm
Figure 13: Graph of minimum distance from reflective surfaces
T
able 8: Formula for calculating the minimum distance to reflective surfaces with automatic
calibration of the protective field width
Distance D between sender and
r
eceiver in m
Calculation of the minimum distance (a) to reflective
surfaces in mm
D ≤ 3 m a = 131 mm
D > 3 m a = tan (2.5°) × 1,000 mm/m × D = 43.66 × 1 mm/m ×
D
Further topics
•
"W
eld spark guard", page 87
4.3.4 Protection against interference from systems in close proximity to each other
Overview
Figure 14: Preventing mutual interference from system
1
and system
2
The infrared light beams of the sender of system 1 can interfere with the receiver of
system 2. This can disrupt the protective function of system 2. This would mean that
the operator is at risk.
PROJECT PLANNING 4
8027140/2021-11-04 | SICK O P E R A T I N G I N S T R U C T I O N S | deTec4
27
Subject to change without notice
To Next Page
Loading...
Need help?
General
