Global sensor manufacturer SICK has introduced a ‘plug-and-play’ double sheet detector that promises to cut downtime and scrap in printing and packaging operations. The SICK UD18-2 can be set up easily by the user to be sensitive to a range of sheet thicknesses and to determine whether there are no sheets, or one, two or more layers of material present. The sensor uses ultrasonic technology to check for double layers, splices, labels or glue residues and offers reliable detection independent of the colour, gloss, transparency or reflectivity of the material. The UD18-2 comprises a compact ultrasonic sender and receiver that detect materials from 20gm/m2 to 2000gm/m2. LED indicators viewable at any angle indicate clearly whether 0, 1 or 2+ sheets are detected, making it easy to monitor double-sheet detections.
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