Electronic Design
Nano-Sized Photoelectric Sensors Include Background Evaluation

Nano-Sized Photoelectric Sensors Include Background Evaluation

The R2 Series of photoelectric sensors go where others cannot—in extremely tight spaces and close to moving objects—due to their size, mounting flexibility, and other features, says developer Pepperl+Fuchs. The sensors, available in fours sensing modes, come in a 24- by 7.5- by 11.2-mm housing and maintain a standard mounting footprint, a flush and wear-resistant antistatic glass lens, and a 45° cable outlet. The company claims the R2 is the only nano-sized photoelectric sensor with background evaluation (BGE) mode, which uses a fixed background such as a conveyor or machine as a reference. They have a secondary emitter LED that provides a laser-like spot size for high-precision applications. Polarized-retroreflective and background-suppression modes are available, too. No-load supply current is less than 10 mA. Maximum sensing distances vary by detection mode; thru-beam mode sensors range to 8.2 feet. Response time is 600 µs. They can operate from 10- to 30-V dc.


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