Retroreflective Area Sensor with IO-Link Detects Objects Regardless of Shape or Size

Pepperl+Fuchs, Twinsburg, OH, has introduced the model R305 retroreflective area sensor for reliable detection of thin and irregularly shaped objects from a height of just 2 mm. The R305 reportedly outperforms the single-point light beams of traditional retroreflective sensors, detecting very small or narrow objects not precisely aligned with the point-shaped detection area. For objects with irregular contours, a point-shaped beam may either miss the object entirely or detect it with a delay, which can trigger multiple switching operations. The R305, however, with its wide light band, always detects the leading edge of an object and avoids multiple switching.

Using a light band of five individual beams that can be switched off individually, the R305 sensor allows interfering objects to be blocked out or the detection height to be adapted to narrow openings. Its adjustable contrast level ensures reliable detection of challenging targets, while the High Resolution Mode extends this capability by detecting very thin objects. Beyond simple presence detection, the sensor measures object height and transmits values via IO-Link.

In Easy Alignment Mode, the light band can quickly be aligned with the reflector. A right-angle bracket with an integrated deviation mirror also enables mounting offset by 90 deg., creating a compact side-looker version for tight spaces. Its Auto-Teach function automatically adjusts the sensor to the application environment by saving central parameters after alignment, eliminating the need for reteaching after maintenance or downtime. In operation, automatic signal compensation continuously balances out dust, dirt, or changing light conditions by adapting the light intensity, ensuring consistently reliable detection.

See also: Pepperl+Fuchs, Inc.

Technologies: Sensing/Electronics/IOT

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