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ATEX for Gas Detection Systems – Easy to understand!
Gas detection systems are very often used in hazardous areas and are subject to regulations applicable to such areas. Middle of the
year 2003 all these individual regulations have been fixed for Europe under Directive 94/9/EU - better known as ATEX.
The user classifies first all hazardous areas into Zone 0, 1 or 2 by means of a risk analysis. The grade of hazard decreases from Zone
0 to Zone 2. You could use detection systems within these zones which correspond to the minimum re- quirements of the ATEX. The different requirements of the Zones are reflected in corresponding Device Categories
(see Picture 1).
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