Leuze electronic MLC 520 EX Series - Preventing Mutual Interference between Adjacent Devices

Mounting
Leuze electronic MLC 520 EX 26
Table 6.2: Formula for calculating the minimum distance to reflective surfaces
6.1.5 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 (see figure 6.4).
1 Transmitter 1
2 Receiver 1
3 Transmitter 2
4 Receiver 2
Figure 6.4: Optical crosstalk between adjacent safety sensors (transmitter 1 influences receiver 2) due
to incorrect mounting
 Mount adjacent devices with a shield between them or install a dividing wall to prevent mutual interfer-
ence.
 Mount the adjacent devices opposite from one another to prevent mutual interference.
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]
NOTICE
Possible impairment of the availability due to systems mounted close to each other!
The transmitter of one system can influence the receiver of the other system.
 Prevent optical crosstalk between adjacent devices.
2
4
1
3