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Photoelectric switches

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article image Resistant to both electromagnetic and passive sources of interference.
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SICK has released the W18-3 series of photoelectric switches. The WT18-3 photoelectric proximity switch integrates SICK chip technology and allows scanning distances to be set electronically with precise background suppression.

They offer improved immunity to both ambient light and mutual interference and housings with reinforced mounting hole. They have all-round LEDs and easily-cleaned flat optics. They are resistant to both electromagnetic and passive sources of interference as well as local high-frequency mechanical vibrations. The detection precision and adjustability of the WS/WE18-3 through-beam photoelectric switch and the WL18-3 photoelectric reflex switch have been considerably improved.

The WT 18-3 photoelectric proximity switch has chip technology that has been specially developed for scanners. This provides precise detection results and allows electronic setting of the scanning distance with more accurate background suppression. Teach-in of scanning parameters can be carried out with an adjustment element.

Scanner versions are available with one-button or two-button teach-in and additional fine adjustment. Regardless of the teach-in mode selected chip technology and electronic adjustment make definition of the work-points of all the scanners fast and precise. One-to-one mechanical and electrical integration allow simple upgrading to the new W18-3 when replacing the W18-2.

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