Datalogic SG2 BASE series Original Instructions Manual

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Datalogic SG2 BASE series Original Instructions Manual Manual pdf 21 page image

SG2 MUTING21/962.2.2 Distance between homologous devicesThe following graphic shows the distance from the interfering devices (Ddo) according to the operating distance(Ddo) of the couple ( TXA – RXA ).If different safety devices have to be installed in adjacent areas, the emitter of one device must not interferedangerously 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 15 - Distance between homologous devicesThis minimum Ddo distance depends on: the operating distance between emitter (TXA) and receiver (RXA) the effective aperture angle of the ESPE (EAA)The following graphic shows the distance from the interfering devices (Ddo) according to the operating distance(Ddo) of the couple ( TXA – RXA ).Fig 16 - ESPE Type2The following table shows, for convenience, the values of the minimum installation distances relative to someoperating distances:Operating distance (m) Minimum installation distance (m)3 0,36 0,410 0,519 0,6The interfering device (TXB) must be positioned at the same Ddo distance, calculated asshown above, even if closer to TXA respect to RXA.Installation precautions have to be taken to avoid interference between homologousdevices. A typical situation is represented by the installation areas of several adjacentsafety devices aligned one next to the other, for example in plants with differentmachines.