Banner Engineering is offering 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 a solution suitable for detecting small, inconspicuous marks in low-contrast, high-gloss sensing applications. All models feature Banner's advanced Teach-mode pushbutton programming for easy setup.
The R58 Expert sensor has three LEDs and automatically selects the correct one to use, based on the contrast between the colour of the registration mark and its background. Because the sensor automatically determines the sensing beam colour for the best performance in each application, the user can use a single sensor instead of constantly changing sensors to one that has the proper LED colour. The high contrast sensitivity of the R58 Expert makes it easy to detect critical features, even on difficult-to-sense material.
Applications for the R58 Expert Series sensors include colour registration mark detection, cutting mark detection and product orientation. These sensors see frequent use in the printing, packaging and pharmaceutical industries.
Several features of the R58 Expert Series sensors make them particularly easy to install and use:
* Fast (50 ms) response performs up to 10 000 actuations per second.
* ±3 mm shift from the 10 mm focal point accommodates web flutter and similar variations in the target's location.
* Setup is quick and easy using Teach pushbutton or remote cable.
* 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.
* Setup mode allows the user to program outputs for light/dark operate and on/off-delay.
* 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.
Specifications: R58 Expert sensors operate on 10 to 30 V d.c. 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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