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The WLL170-2 fibre-optic series with improved performance features
Waldkirch, October 2005 The recognition of small objects, of objects in front of an interfering background, of colour marks and transparent objects are just some of the strengths of the WLL170-2 fibre-optic series. The sensor family, fully compatible with its predecessor series, offers longer ranges, manual sensitivity adjustment by potentiometer, and a switching frequency that has been doubled to 2 KHz for even more rapid processes. With its potential combination with more than 80 different LL3 fibre-optic cable designs, and its new increased enclosure rating of IP 66, even detection tasks in harsh environments can be solved.

Not only have the connection systems of the WLL170-2 retained full compatibility, but also the user interface both prerequisites for a user-oriented conversion to the new series. The expanded performance data of the individual devices, and a sensor for red-sensitive marks and objects, are new.

Three new versions for a wide variety of applications
The WLL170-2 series consists of three different sensor versions. The device with a red-light transmitter covers a broad range of standard industrial applications. There is now, for the first time, a fibre-optic sensor with a green-light LED for tasks in which red marks or objects are to be detected. If high detection speeds are important, the high-speed version with a switching frequency of 10 KHz is the right choice. Depending on its intended use, the WLL170-2 can be combined with more than 80 different LL3 series fibre-optic cables. Thus meeting differing requirements regarding, for example, diameter, bending radius, end sleeve design, resistance to chemicals or temperatures, or optical design. There are even versions with an integrated 90 corner.

Fibre-optic systems with the WLL170-2 and LL3 solve automation tasks
Fibre-optic photoelectric switches represent an ideal solution wherever special physical and chemical properties are required. For example, object detection where space is limited or mounting positions are difficult to reach, or low weight is essential to reduce kinetic energy when the device is mounted on a robot axle.

Thus the WLL170-2 meets a wide range of requirements in, among other areas, the semiconductor industry, packaging machine construction, handling and assembly systems, electronic production, precision engineering and in special machine construction.