Differing minimum distance to reflective surfaces for devices with a resolution of
30 mm w
ith weld spark guard
If a device with a resolution of 30 mm is used with the weld spark guard, the following
applies in contrast to other specifications in order to determine the minimum distance
from reflective surfaces:
1. Determine the distance D between sender and receiver in meters (m).
2. Read the minimum distance a in millimeters (mm) in the graph or calculate it
based on the respective formula (see table 42).
2000
1800
1600
1400
1200
14 16 18 20 22 242 4 6 8 10 12
1000
800
600
400
200
0
0
D/m
a/mm
Figure 45: Diagram minimum distance to reflective surfaces for devices with a resolution of
30 mm w
ith weld spark guard
Table 42: Formula for calculating the minimum distance to reflective surfaces for devices with a
resolution of 30 mm with weld spark guard
Distance D between sender and
r
eceiver in m
Calculation of the minimum distance (a) from reflective
surfaces in mm
D ≤ 3 m a = 262 mm
D > 3 m a = tan (5°) × 1000 mm/m × D = 87,49 × 1 mm/m × D
Table 43: Weld spark guard ordering information
Part Part number
Weld spark guard 2069268
15 ACCESSORIES
88
O P E R A T I N G I N S T R U C T I O N S | deTec4 8027140/2021-11-04 | SICK
Subject to change without notice
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