Wednesday, 26. August 2009 R. STAHL and Pepperl+Fuchs agree to support the future technology DART
Waldenburg/Germany-based R. STAHL Schaltgeräte GmbH and Mannheim/Germany-based Pepperl+Fuchs GmbH are worldwide leading manufacturers of components and solutions for explosion hazardous areas in the process industry. Both companies have signed a license agreement for using the new DART technology (Dynamic Arc Recognition and Termination). The open DART licensing model allows the unlimited use of this patented technology in order to supports its fast international acceptance. Both companies also expressed their common interest to support the international standardisation of this technology.
In order to completely exclude the development of sparks strong enough to cause ignitions, conventional solutions for intrinsically safe electric circuits drastically limit the effective power available for devices within explosion hazardous areas. In contrast, DART recognises the typical current and voltage pattern which indicates the development of a spark. This technology immediately cuts off the power supply within a few micro seconds, thereby “extinguishing” the spark before it is able to develop sufficient energy to ignite any explosive mixture of gases. With DART technology, the requirements of IEC 60079-11 regarding the protection of devices by means of intrinsic safety are raised significantly, allowing the intrinsically safe supply of up to 50 watts of effective power to devices within the ex zone.
Contact:
R. STAHL
Kerstin Wolf
Am Bahnhof 30
74638 Waldenburg
Germany
Tel.: +49 7942 943 - 4300
Fax: +49 7942 943 - 404300
E-mail: presse@stahl.de
Internet: www.stahl.de