Depth of Field Comparison

Registration sensors, sometimes called contrast sensors, are photoelectric sensors that detect the difference in color between a registration mark and background material. For consumer goods manufacturers, registration sensors serve a critical role when packaging their products.  

At Sensors, we’re about sharing our expertise. One of the latest sensors we’re most excited about is the SICK KTX, which has a number of impressive improvements from its predecessor the KT5. This page will showcase those improvements.

Sensor Products

Applications the KTS Solves

Registration marks are placed strategically on large webs of packaging materials. As the web of material is fed down the production line, packaging machines cut them into individual labels. Registration marks feature slight contrasts of color that communicate to registration sensors where packaging machines should cut, fold, seal, and glue the web of materials to ensure the label is assembled properly  

Manufacturers face a complex challenge, as registration marks need to serve both a factory and marketing function. The marks must feature enough contrast that registration sensors can detect the difference between them and the background material, while also being disguised to blend into the overall brand packaging and provide shelf appeal for end consumers. 

However, as consumer goods manufacturers know all too well, the registrations sensors can sometimes confuse the colors on the registration marks. If the registration sensor is unable to accurately identify key directions on the registration mark, packaging errors occur, which can lead to costly product contamination. In order to reduce packaging mistakes and ensure high-quality shelf appeal, manufacturers turn to SICK for high-precision registration sensors. Two of the most popular models of registration sensors include the KT5 and the KTX.

Which one is best? 

KTX Has Double the Sensing Range as the KT5

One of the primary advantages the KTX have over their predecessor the KT5 is an 6mm depth of field, which is double the KT5’s 3mm distance tolerance.

What Else Makes the KTX Unique?

  • High speed up to 50 kHz
  • Digital display and set point
  • IO-Link versions available

How can we help?

Is your company struggling with an application? Sensors can help. Any application, any time. Reach out and let us know about your application.