Banner Engineering has introduced its R58 Expert series colour register mark sensors for detecting colour contrast in common product and material registration applications. The R58 Expert accurately detects 16 levels of grey scale by automatically selecting the sensor’s red, green or blue LED, based on the contrast of the background and the registration mark being sensed. Its ability to perform up to 10 000 actuations per second, coupled with its small 1,2 x 3,8 mm sensing image, makes the R58 Expert an ideal solution for detecting small, inconspicuous marks in low-contrast, high-gloss sensing applications. All models feature Banner’s advanced TEACH-mode push-button programming for easy setup.
The sensors are ideal for challenging applications, including colour registration mark detection, cutting mark detection and product orientation, and are often used in the printing, packaging and pharmaceutical industries.
Several features of the R58 Expert series make them particularly easy to install and use:
* ±3 mm shift from the 10 mm focal point accommodates web flutter and similar variations in the target’s location.
* Dynamic TEACH mode allows the sensor to learn two sensing conditions on-the-fly and automatically set the switch-point.
* Static TEACH mode allows the user to set two distinct switch-points.
* 8-segment light bar indicator shows continuous readout of operating status.
* Lenses on both the front and bottom of each sensor and models with either a vertical or horizontal light spot provide convenient and flexible mounting.
* Zinc alloy die-cast housing with high quality acrylic lens is rated IP67 for food processing applications.
R58 Expert sensors operate from a 10–30 V d.c. supply and feature solid-state bipolar discrete outputs: one current sinking (NPN) and one current sourcing (PNP). Indicator lights provide ongoing readout of operating status, light or dark operate and ON or OFF delay.
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