Leuze’s HRTR46B Teach opto-sensor is two sensors in one unit

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The new HRTR 46B TEACH opto-sensor from Leuze electronic provides electronic adjustment using either the traditional teach-in method or across IO-Link, with its two individual switching points and outputs providing two sensors in one housing.

The scanning range and corresponding parameters of Leuze’s sensor can be adjusted in millimetres directly from the PLC using IO-Link, which simplifies and accelerates system start-up, plus providing easy restoration of device characteristics should a sensor need replacing.

This highly flexible sensor can be used for example to provide quick and automatic format conversions or two-stage positioning, with the two individually adjustable switching points offering simple and therefore low-cost options.

Information on electronic scanning range adjustment

Electronic scanning range adjustment in the teach sensor of series 46B is realised via an innovative, site-sensitive detector. This semiconductor component developed by Leuze electronic combines photosensitive receiver structures and logical evaluation functions in a single chip, and therefore there are no moving parts.

A new, patented evaluation algorithm ensures very robust behaviour even with glossy or extremely dark objects as well as with interference light. In addition, detection reliability is increased in the new HRTR 46B TEACH reflection light scanner, since in comparison with the differential signal of standard scanners, more evaluation signals are available.

For further information about the new HRTR 46B TEACH opto-sensor from Leuze electronic, visit the website at

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