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DT20 – the precise analogue distance scanner for medium ranges
Waldkirch, April 2006 – With the new DT20, SICK has supplemented its product family of analogue distance sensors with a device for ranges of between 90 mm and 1,000 mm. The sensor not only combines high measurement accuracy, great robustness, immunity to ambient light, and simple installation but, on request, can also be pre-parameterised by SICK to meet application-specific requirements.

In its compact metal housing, the DT20 operates with an infrared transmission LED and has a switching output in addition to its 4 - 20 mA analogue output. A special front screen ensures the DT20’s high immunity to ambient light. The distance sensor’s high measurement accuracy, resulting from the use of a specially developed sensor chip with electronic reciever and evaluation technology, is of decisive importance for many applications. For example, +/- 4 mm accuracy within the measurement range of 90 mm to 600 mm (largely independently of object reflectivity). Thus numerous processes can be automated with a high level of precision, e.g. packaging applications, the measurement of filling levels, or the regulation of thread.

Trouble-free mounting

The DT20 offers unparalleled ease-of-installation. Transmitter/receiver markings on the housing act as an optical adjustment aid. The new plug technology combines functionality and flexibility: shorter and stronger, the 5-pin M12 device plug can now be rotated through 90° and connected in any position. As a result, the DT20 can be optimally aligned with the particular target objects. A special mounting bracket is available for exceptional mounting situations.

Intelligent type key for plug & play use

Users can order the DT 20 directly as a plug & play version. This has been made possible by the intelligent type key integrated in the device order number. This allows the 4 - 20 mA analogue output to be linked with an individually definable measurement range. Thus the user obtains a device that is immediately ready for operation and that can be re-ordered as an identical device years later – because the parameterisation data is contained in the type number on the device.

Within the programme of industrial distance sensors, the DT20 is positioned as a precise and, in very many ways, practical solution for analogue position detection at medium ranges.