Photon controls [i] has introduced photoelectrical switches for various applications such as position sensing, object counting, safety, security, edge sensing, guiding, limit switching, etc. The unit includes modulated infrared transmitter and receiver with different arrangements such as using scan, retroreflective and diffused scan methods. The units are selected depending on availability of space in machine and the object to be sensed in process. The units come with a variety of specifications like ac/dc supply and relay, transistor output various sizes and shapes to suit oem requirements and replacement. The units are designed according to the international standards so as to meet a variety of customer`s requirements. In thru beam type range can be offered up to 100 metres, in retroreflective up to 8 metres and in diffused scan switches up to 1 metre. Diffused scan switches are widely known as proximity switches. The basic advantage of these switches is that it can sense non-metallic things also irrespective of whether it is transparent or opaque. Proximity switches are available with standard variable sensing range of 100/200 mm output, pnp/npn transistor output [100 ma] and m18 dia. The slot sensors are special application of the through beam sensor with fixed distance and variable sensitivity. The sensors come in ms/brass with chrome plated abs plastic housing to meet requirements of various sizes and shapes.
