Colour Marks
R55 Expert sensors detect the most difficult color mark contrasts, including 20% yellow on white. Tolerates a ±3 mm shift from the 10 mm focal point to accommodate web flutter and similar variations in target location. Provides a sensing image that measures 1.2 x 3.8 mm at 10 mm from the lens. Detects very small and inconspicuous color marks with a small sensing image and fast 50 microsecond response time. Offers choice of models with a visible green, blue or white LED and features push-button programming for easy-to-set static, dynamic, single-point and remote TEACH. Uses push-button manual sensitivity adjustment. Provides 10 to 30V dc supply voltage with bipolar NPN or PNP outputs. Includes a 0-10 mA analog output for indication of signal strength. Features two lens positions and a choice of sensing image orientations.