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WLL170-2: the new, faster fibre-optic series
Waldkirch, April 2005 The detection of small objects, of objects against an interfering background, of coloured marks and transparent objects are among the strengths of the new WLL 170-2 fibre-optic series. This family of sensors, fully compatible with its predecessor series, also offers long ranges, manual sensitivity adjustment by potentiometer, and a switching frequency that has been doubled to 2 kHz for even more rapid processes. Detection tasks in harsh environments can also be solved thanks to combinability with up to 90 different LL3 fibre-optic cable designs, and an enclosure rating that has been increased to IP 66.

The connector technology and user interface of the WLL 170-2 have been retained both factors that simplify upgrades to the new series. The individual device performance has been improved, e.g. the range (now up to 4,000 mm), and there is a new sensor for red-sensitive marks and objects.

For standard and special applications

The WLL 170-2 series consists of four different sensor versions. The device with a red light transmitter covers a wide range of standard industrial applications. A fibre-optic sensor with a green light LED is available for tasks involving the detection of red marks or objects. If high detection speeds are necessary, the high-speed version (with a switching frequency of 10 kHz) is the right choice. The appropriate device is also available if analogue signals are to be supplied. The series can be combined with about 90 different fibre-optic cables of the LL30 series, according to the type of use intended.

They are thus suitable for a variety of requirements regarding, for example, diameter, bending radius, end-sleeve design, media and temperature resistance, or optical design. There are also versions with an integrated 90 deflection.

Where fibre-optic photoelectric switches are the ideal solution

Fibre-optic photoelectric switches are the ideal solution wherever devices have to be mounted in locations where space is limited or difficult to reach, or where weight has to be minimised, e.g. to reduce the kinetic energy when mounting on a robot axis. This is why the WLL 170-2 enjoys a wide range of uses in the semi-conductor industry, in packaging machine construction, in handling and assembly systems, in electronics production, in precision mechanics and in special machine construction.