Contrast
and Colour Sensors
Contrast Sensing
In many processes in industrial automation, print registration marks play a major role. Therefore it's
all the more important to detect them in a reliable and repeatable way. For
that purpose, the contrast sensor FT 20 WT
uses a white light LED. It reliably detects marks in different colours and
intensities and can detect even the fi nest contrast
differences. Particularly helpful, thanks to its depth of focus of +/- 2 mm, the sensor is highly resistant to vibrations.
This sensor has all the advantages of the F 20 range: Compact plastic casing,
teach-in operation and a comprehensive range of accessories. With
dynamic teach-in, parameterization in running processes is particularly easy.