Leuze's new PRK 3b is claimed to be the world's smallest opto-electronic/laser sensor capable of detecting components measuring less than 0.1mm. For standard applications with a scanning range up to 400 mm, the PRK 3b series has extremely good black-and-white performance and reliable switching operation irrespective of the object and background properties. This variant suits diverse applications in the assembly and handling sectors including conveying of miniature containers, as well as for printing or labelling applications.
In an XL version this exceptional sensor provides reliable detection of objects with gaps, boreholes and grooves, for instance when scanning pcb's, transparent films or bottles, or grid-type structures of the kind encountered in blister packs and objects with changeable positions. The S version has been optimized for the detection of small components and structured, coloured or shiny objects.
Within its extremely compact housing of just 32 x 11 x 17mm, the new sensor embraces the quest for product miniaturisation, faster and more precisedetection, and an ability to cope with interference from spurious light sources, reflective packaging as well as heavy soiling. The build has good sealing
properties ensuring conformity to IP 67 and IP 69K for areas where intensive cleaning cycles are deployed.