Belden has launched the Hirschmann OZD Profi G12 ATEX Profibus FO repeaters certified for use in hazardous locations, zones 1, 2, 21 and 22. The optical ports are intrinsically safe and have got op-is approval. With a transfer rate of up to 12 Mbps, the repeater is available with a stainless steel or plastic housing. The optical function module, which has its own Ex approval, is also available without a housing. This enables it to be installed in the same housing as other components, so saving valuable space. The optical performance of the FO repeater can be continuously monitored using signal strength outputs which can be integrated in the process control system. As the repeaters also support ring redundancy, it is now possible to implement highly available Profibus networks using ring or line topologies in potentially explosive environments such as those found in the oil and gas sectors and in some areas of the food industry.
Edited by: Jürgen Wirtz
