Photo Sensor Supports Complex Detection Tasks

Leuze Electronic's new HRTR 46B-Teach photo sensor - comprising two sensors integrated in one housing - is suitable for complex tasks such as detecting two location points in a storage rack. The photo sensor is able to return two independent switching signals. The sensor's scanning range is adjusted by a 'site-sensitive' detection method using a custom semiconductor. This design means that there are no moving parts within the sensor to make the range adjustments.

The functions of a photo-sensitive receiver structure and the logical processing are combined within this single semiconductor chip. In addition, a patented evaluation algorithm ensures robust behaviour even with glossy or dark objects, as well as coping with light interference such as from overhead windows and flashing beacons. Detection reliability has been further increased because more evaluation signals are processed within the new HRTR 46B-Teach sensor than in previous standard sensors.

In common with other members of the 46B range of sensors, high performance and careful design ensure robust performance in difficult real-world challenges, according to the company. The inclusion of IO-Link enables configuration, diagnostics and adjustment from the control panel. IO-Link not only makes commissioning straightforward but will also configure a new sensor should the original one be replaced, for example because of damage.

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