SICK deTec4 Core Ex II 3GD - Protection against Interference from Systems in Close Proximity to each Other

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:
500
400
300
200
100
a/mm
10 11 12 D/m1 2 3 4 5 6 7 8 9
Figure 11: Graph of minimum distance from reflective surfaces
Table 2: 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
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.
PROJECT PLANNING 4
8021796/1DCM/2022-10-27 | SICK O P E R A T I N G I N S T R U C T I O N S | deTec4 Core Ex II 3GD
21
Subject to change without notice