Chromatotec®, with operations in the United States, has proposed a version of its MEDOR® analyser in Exp cabinet for hazardous areas. This solution dedicated for monitoring and online analysis of sulfurs and odorous compounds in natural gas has now received the European directive for controlling explosive atmospheres (ATEX)-certification for zone 1. MEDOR® was already certified for zone 2 since 2014.
The ATEX directive consists of two EU directives describing what equipment and work environment are allowed with an explosive atmosphere. It guarantees risk controls regarding explosion in this type of atmospheres, according to areas classified into zones. Zone 1 and 2 are areas where a mixture of dangerous substances with air, in the form of gases, vapors or mist in which, after ignition has occurred, combustion spreads to the entire unburned mixture. Zone 1 is for an area in which an explosive mixture is likely to occur in normal operation; zone 2 is for an area in which this explosive mixture is likely to exist in normal operation for a short time.
This online analyser, in continuous flow and completely automatic, is integrated in an Exp cabinet, pressurized and diluted continuously. The purging system includes a pressure regulator with a flow restrictor to control the inlet dilution. For zone 1, a flow controller is located at the valve outlet to validate the flow out of the cabinet.
With the ATEX certification for its MEDOR® Exp range, Chromatotec® has got now the authorization for mass production of any device certified as ATEX and capabilities to expand more largely its solutions.