Table 12: Formula for calculating the minimum distance to reflective surfaces with automatic
c
alibration 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
Determining the minimum distance to reflective surfaces with dynamic protective
f
ield width
The minimum distance can be determined as follows:
b
Determine the distance between sender and receiver D in meters (m).
b
Calculate minimum distance a in millimeters (mm) based on the corresponding
formula from table 13 or table 14:
Table 13: Formula for calculating the minimum distance to reflective surfaces with dynamic
protective field width (resolution 14 mm)
Dynamic protective field
w
idth
Distance D between sender
and receiver in m
Calculation of the minimum
distance (a) from reflective sur‐
faces in mm
Small range: 0.15 m ... 4 m D ≤ 3 m a = 131 mm
D > 3 m a = tan (2.5°) × 1,000 mm/m
× D = 43.66 × 1 mm/m × D
Medium range: 1 m ... 8 m D ≤ 4 m a = 175 mm
D > 4 m a = tan (2.5°) × 1,000 mm/m
× D = 43.66 × 1 mm/m × D
Large range: 2 m ... 16 m D ≤ 8 m a = 350 mm
D > 8 m a = tan (2.5°) × 1,000 mm/m
× D = 43.66 × 1 mm/m × D
Table 14: Formula for calculating the minimum distance to reflective surfaces with dynamic
pr
otective field width (resolution 30 mm)
Dynamic protective field
w
idth
Distance D between sender
and receiver in m
Calculation of the minimum
distance (a) from reflective sur‐
faces in mm
Small range: 0 m ... 6 m D ≤ 3 m a = 131 mm
D > 3 m a = tan (2.5°) × 1,000 mm/m
× D = 43.66 × 1 mm/m × D
Medium range: 0 m ... 12 m D ≤ 6 m a = 262 mm
D > 6 m a = tan (2.5°) × 1,000 mm/m
× D = 43.66 × 1 mm/m × D
Large range: 0 m ... 24 m D ≤ 12 m a = 524 mm
D > 12 m a = tan (2.5°) × 1,000 mm/m
× D = 43.66 × 1 mm/m × D
4 PROJECT PLANNING
32
O P E R A T I N G I N S T R U C T I O N S | deTec4 Ex II 3GD 8023872/18YZ/2021-01-14 | SICK
Subject to change without notice
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