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Banner Engineering: Q20-2 Polarized Retroreflective Sensor

May 8, 2023

The Q20-2 is a new polarized retroreflective photoelectric sensor designed for reliable detection, quick installation, and precise beam alignment.

Its bright, visible red LED features best-in-class bore sighting, ensuring that the beam spot hits repeatably where it is intended. The Q20-2 features an industry-standard compact housing and robust threaded 3-mm mounting holes.

Reduces Missed Detections

The Q20-2’s retroreflective polarized optics and long-range sensing detects targets regardless of color, texture, and reflectivity to ensure robust, reliable performance.

Simplifies Machine Design

The Q20-2 emitter’s best-in-class optical-to-mechanical alignment is up to five times more consistent than other sensors on the market, allowing machine builders to mount it into tighter spaces with simpler and more cost-effective brackets that require less adjustment.

Installs Faster

The Q20-2 is designed to be easy to install, align, and adjust. Wiring is only required on the sensor side of the machine, and the bright red, bore-sighted beam spot aids with reflector alignment. Its industry-standard 25.4-mm mounting-hole spacing and robust threaded 3-mm mounting holes, multiple mounting-bracket options, and single-turn potentiometer make both new installations and sensor replacement easy.

Lowers Maintenance Costs

Should the sensor ever get damaged, the repeatable and tightly controlled beam alignment allows for quick and easy drop-in replacement without requiring much time, effort, or experience to realign the sensor.


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