With the key phrase “potentially explosive atmospheres”, many users immediately think about areas that contain flammable gases and now know that only ATEX-approved pressure sensors may be used in plant and machinery in these areas. Frequently, however, they …
Ex protection
Proof of intrinsic safety for an ATEX-approved pressure sensor
Stefan Heusel | Know-howIn the European Union, the ATEX Directive 94/9/CE is compulsory for plants or machines, in which hazardous substances are processed or produced. It states that only ATEX-approved instruments must be used in hazardous areas within Europe. One frequently selected …
Worldwide use of Ex instruments and Ex pressure sensors due to international IECEx approval
Stefan Heusel | Know-howPressure sensors and electronic devices may only be used in hazardous areas if they have been tested and approved by a recognised authority in terms of their explosion protection features. So far, this was mostly carried out by a national institution which, after …
When does a sensor modification require changes to the approval?
Stefan Heusel | Know-howGenerally, all pressure sensors which are distributed in the EU market have to comply with the requirements of the “ pressure equipment directive ” as well as the EMC directive 2004/108/EC. Depending on the application or location of operation, a variety of …
Why it is important to choose explosion-proof pressure transmitters carefully …
Ahmad Desuki | Know-howIn order to be safe for use in the hazardous locations, pressure sensors that are suitable for use in that hazardous area need to comply with one of the many protection types available. A common route is to use a pressure sensor possessing the Ex-d protection type, …