Determining minimum distance from reflective surfaces with automated calibration of
the 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:
a
[mm]
1100
1000
900
800
700
600
500
400
300
200
100
0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 5,5 6 6,5 7 7,5 8 8,5 9 9,5 10
11
12
D
[m]
Figure 11: Graph of minimum distance from reflective surfaces
Table 2: Formula for calculating the minimum distance to reflective surfaces
Distance between sender and
receiver D in m
Calculating the minimum distance to reflective surfaces
a in mm
D ≤ 3 m
a = 262 mm
D > 3 m
a = tan (5°) × 1,000 mm/m × D = 87.49 × 1 mm/m × D
4.3.4
Protection against interference from systems in close proximity to each other
Overview
s
r
s
r
1
2
Figure 12: 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.
Avoid such installation situations or take appropriate action, e.g., install optically opa‐
que partitions or reverse the direction of transmission of a system.
4
PROJECT PLANNING
20
O P E R A T I N G I N S T R U C T I O N S | senSe2
8027557/2022-11-11 | SICK
Subject to change without notice