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Sensors register colour contrasts

A Banner Engineering product story
Edited by the Engineeringtalk editorial team May 4, 2006

Banner Engineering Corp has introduced its R58 Expert Series colour register mark sensors for detecting colour contrast in common product and material registration applications.

Banner Engineering Corp 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 3.8mm 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 pushbutton programming for easy setup and are only $239.

"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", said Steve Giere, Senior Application Engineer for Banner.

"Because the sensor automatically determines the sensing beam colour for the best performance in each application, you can use a single sensor instead of constantly changing sensors to one that has the proper LED colour".

Giere added: "The excellent contrast sensitivity of the R58 Expert makes it easy to detect critical features, even on difficult-to-sense material".

R58 Expert Series sensors can detect small colour marks and differentiate low-contrast colours, making them ideal for challenging applications, including colour registration mark detection, cutting mark detection and product orientation.

R58 Expert sensors are often used in the printing, packaging and pharmaceutical industries.

R58 Expert sensors operate from 10 to 30V DC 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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