Leuze CRT 648 colour sensors

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Colour sensors detect the colour of an object or print mark and compare it to a set reference value. They are a cost-effective and compact alternative to image processing systems and are suitable for many industries including mechanical engineering as well as the plastics, pharmaceutical and packaging industries.

The Leuze CRT 648 colour sensors are designed to be easy and intuitive to operate with a large, integrated LC display with keypad. The status of the switching outputs, a current colour value output or the signal quality can be displayed as selected. If different product variants are tested in one system, up to seven colour settings can be saved on the sensor and tested simultaneously.

The large operating range opens up further possibilities. This means that one sensor can be used for different tasks, reducing the need for additional sensors and set-up times.

The CRT 648-32.G colour sensors are equipped with a polarisation filter to improve the reliability of detection on glossy objects. The evaluation of an object’s brightness, depending on its distance from the sensor, poses a further colour recognition challenge, so the CRT 648 colour sensors’ brightness evaluation with autocorrect provides distance-independent colour detection up to 65 mm.

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