SG4E Full Rev01.pdf - Datasensor

2
SG4-E INSTRUCTION MANUAL
The minimum distance depends on:
operating distance between emitter (TX) and receiver (RX);
real aperture angle of ESPE (EAA); especially:
for ESPE type 4 EAA = 5° ( = ± 2,5°)
Diagram of Fig. 10 shows the minimum distance from the reflecting surface (Dsr), based on
the operating distance:
ESPE
Type 4
Fig. 10
The formula to get Dsr is the following:
Dsr (m) = 0.15
Dsr (m) = 0.5 x operating distance (m) x tg 2
for operative distances < 3 m
for operative distances 3 m
2.2.2 Distance between homologous devices
If different safety devices have to be installed in adjacent areas, the emitter of one device
must not interfere dangerously with the receiver of the other device.
The TXB interfering device must be positioned outside a minimum Ddo distance from the
TXA – RXA emitter-receiver couple axis.
Fig. 11 – Distance between homologous devices
This minimum Ddo distance depends on:
the operating distance between emitter (TXA) and receiver (RXA)
the effective aperture angle of the ESPE (EAA)
12