Leuze's new 'two-in-one' sensor offers high-reliability detection
22 June 2011
Leuze electronic’s new HRTR 46B-TEACH photo sensor is in fact two sensors integrated into one housing. This enables it to return two independent switching signals, making it possible to achieve complex tasks such as detecting two location points in, for example, a storage rack. Doing this with only one sensor instead of two saves money, space and simplifies installation.

The sensor’s scanning range is adjusted by means of a ‘site-sensitive’ detection method using a custom semiconductor developed by Leuze electronic. This design means that there are no moving parts within the sensor for range adjustments.
The functions of photosensitive receiver and logic are combined within this single semiconductor chip. Additionally, a new embedded algorithm ensures reliable detection of glossy or extremely dark objects, and immunity to light interference such as that from overhead windows and flashing beacons.
The inclusion of IO-Link enables configuration, diagnostics and adjustment from the control panel. This not only makes commissioning easy, but will also configure a new sensor should the original one be replaced.
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