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Photoelectric switch sets new standards

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THE new W18-3 series of photoelectric switches, available from SICK Australia , sets a new standard in accuracy and operating properties.

The WT 18-3 photoelectric proximity switch is the technological highlight of the series -- integration of the latest SICK chip technology offers the opportunity of reliably solving demanding tasks with a high level of sensor availability under variable ambient conditions.

The application experience gained from the forerunner families has been consistently implemented in powerful system technology throughout the W 18-3 series.

Thus, features such as further improved immunity to both ambient light and mutual interference are as standard for this device as its optimised housing with reinforced mounting holes, its reader-friendly all-round LED, and its easy-to-clean flat optics.

In addition to its mechanical strength, the device's resistance to both electromagnetic and passive sources of interference, as well as to local high-frequency mechanical vibrations, has also been increased.

The detection precision and adjustability (key words: smaller red-light spot) of the WS/WE 18-3 through-beam photoelectric switch and the WL 18-3 photoelectric reflex switch have been considerably improved.

The sensors of the W18-3 series offer versatile use within a temperature range of -40ºC to 60ºC.

The WT 18-3 photoelectric proximity switch is the first device of its kind with chip technology that has been specially developed for scanners.

This not only provides considerably more precise detection results - it also allows electronic setting of the scanning distance with more accurate background suppression.

Teach-in of scanning parameters can be carried out using the potentiometer or, as an option, via teach-in.

Regardless of the teach-in mode selected - chip technology and electronic adjustment now make definition of the work-points of all the scanners faster and more precise.

Thus raising machine availability and allowing greater productivity.

During development of the W 18-3, a great deal of attention was given to compatibility with predecessor series.

One-to-one mechanical and electrical integration allows simple upgrading to the new W 18-3 when replacing the "old" W 18-2.

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