Mounting
Leuze electronic
MLD 300, MLD 500
35
Table 6.3:
Formula for calculating the minimum distance to reflective surfaces
6.1.6 Preventing mutual interference between adjacent devices
If a receiver is located in the beam path of an adjacent transmitter, optical crosstalk, and thus erroneous
switching and failure of the protective function, may result.
a
Required minimum distance to reflective surfaces [mm]
b
Protective field width [m]
Figure 6.5: Minimum distance to reflective surfaces as a function of the protective field width up to 70 m
a
500
3500
1000
1500
2500
2000
3000
3
20
40
60
70
b
131
10
30
50
Distance (b) transmit
-
ter-receiver
Calculation of the minimum distance (a) to reflective surfaces
b
£
3 m
a [mm] = 131
b > 3 m
a [mm] = tan(2.5°)
×
1000
×
b [m] = 43.66
×
b [m]
1
Transmitter 1
2
Receiver 1
3
Transmitter 2
4
Receiver 2
Figure 6.6: Optical crosstalk between adjacent safety sensors due to incorrect mounting
WARNING
With systems that are mounted spatially close to one another, a transmitter of one system can influence
the receiver of the other system, thereby affecting the protective function!
Prevent optical crosstalk between adjacent devices.
2
4
1
3
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