{"id":44281,"date":"2026-02-03T17:48:07","date_gmt":"2026-02-03T15:48:07","guid":{"rendered":"https:\/\/elainnovation.com\/atex-regulations-what-you-need-to-know\/"},"modified":"2026-02-03T17:54:27","modified_gmt":"2026-02-03T15:54:27","slug":"atex-regulations-what-you-need-to-know","status":"publish","type":"post","link":"https:\/\/elainnovation.com\/en\/atex-regulations-what-you-need-to-know\/","title":{"rendered":"ATEX regulations: what you need to know"},"content":{"rendered":"\n<p>In industry, certain zones are classified as &#8220;explosive atmospheres&#8221;: a simple spark or overheating can cause an explosion. The ATEX standard provides a precise framework for the design, marketing and use of equipment in these high-risk environments. For integrators of IoT solutions, understanding ATEX is essential before deploying sensors, beacons or beacons in oil &amp; gas, chemical, agri-food or hazardous materials logistics sites.  <\/p>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\"><strong>What is the ATEX standard?<\/strong><\/h2>\n\n<ul class=\"wp-block-list\">\n<li>EU: for manufacturers of equipment intended for use in potentially explosive atmospheres (marking, design, testing).<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Directive 1999\/92\/EC: for operators (classification of zones, organization of work, staff training).<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>These texts are mandatory in the European Union, as well as in several countries such as Switzerland and Turkey.<br\/>Internationally, the IECEx standard plays a similar role: it is a voluntary certification system that facilitates the export of ATEX equipment through mutual recognition of tests between member countries.<\/p>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\"><strong>Understanding the ATEX standard and its zones<\/strong><\/h2>\n\n<p>ATEX regulations distinguish two main types of explosive atmospheres:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Flammable gases, vapors and mists (category G).<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Combustible dusts (category D).<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>For each type, zones are classified according to the frequency and duration of the presence of the explosive atmosphere, as defined <a href=\"https:\/\/www.inrs.fr\/risques\/explosion\/zonage-marquage-materiel-atex.html\" type=\"link\" id=\"https:\/\/www.inrs.fr\/risques\/explosion\/zonage-marquage-materiel-atex.html\">by the inrs<\/a>.<\/p>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p>ATEX zones for flammable gases, vapours and mists :<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>ATEX zone<\/strong><\/td><td><strong>Risk level<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><tr><td>Zone 0<\/td><td>High<\/td><td>Explosive atmosphere present continuously, frequently or for long periods (over 1,000 h\/year).  <\/td><\/tr><tr><td>Zone 1<\/td><td>Medium<\/td><td>Explosive atmosphere likely to occur occasionally during normal operation (between 10 and 1,000 h\/year).  <\/td><\/tr><tr><td>Zone 2<\/td><td>Low<\/td><td>Explosive atmosphere unlikely to occur during normal operation, and if it does, only briefly (less than 10 h\/year).  <\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p>In practice, zones 0 and 1 cover locations close to tanks, pipelines or gas release points, while zone 2 covers peripheral areas where the risk is much more limited.<\/p>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p>ATEX zones for combustible dusts :<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>ATEX zone<\/strong><\/td><td><strong>Risk level<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><tr><td>Zone 20<\/td><td>High<\/td><td>Combustible dust cloud present permanently, frequently or for long periods.  <\/td><\/tr><tr><td>Zone 21<\/td><td>Medium<\/td><td>Occasional formation of dust clouds during normal operation.  <\/td><\/tr><tr><td>Zone 22<\/td><td>Low<\/td><td>Explosive atmosphere unlikely in normal operation, and if it does occur, briefly.  <\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p>In the food, chemical and mineral industries, zones 20 and 21 are often found inside or in the immediate vicinity of silos, conveyors or filling stations.<\/p>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\"><strong>Why is ATEX a key issue for industrial IoT?<\/strong><\/h2>\n\n<p>Deploying sensors in an ATEX zone imposes severe constraints:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Equipment must be ATEX (or IECEx) certified for the zone concerned.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>They must not produce sparks or overheat in such a way as to ignite the surrounding atmosphere.<\/li>\n<\/ul>\n\n<p>Yet the IoT brings major benefits to these environments:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Real-time monitoring of equipment (pumps, valves, tanks) and environmental conditions (temperature, pressure, humidity).<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Predictive maintenance: detecting anomalies before they become breakdowns or incidents.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Operator safety: automatic alerts in the event of dangerous conditions and traceability of interventions.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>By choosing <strong>ATEX-compliant<\/strong> sensors, integrators secure their IoT solutions while complying with regulatory requirements.<\/p>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\"><strong>Bluetooth Low Energy: technology for ATEX zones<\/strong><\/h2>\n\n<p>Bluetooth Low Energy (BLE) technology is particularly well suited to ATEX environments for several reasons:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Low energy consumption, enabling long autonomies and reducing the number of interventions in hazardous areas.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Wireless transmission, compatible with smartphones, Wi-Fi routers, GPS trackers or gateways, facilitating interoperability and integration.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>An ATEX-certified BLE sensor can therefore transmit temperature, movement, opening or presence data without compromising site security, while integrating seamlessly into a global industrial IoT solution.<\/p>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\"><strong>Typical applications in ATEX environments<\/strong><\/h2>\n\n<p>Here are a few concrete examples of where connected ATEX sensors can play a central role:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Critical equipment monitoring<\/strong>: real-time monitoring of compressors, generators, valves or pumps to detect anomalies and plan maintenance before breakdowns occur.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Control of hazardous product containers<\/strong>: monitoring the pressure, temperature or integrity of tanks and drums containing flammable or toxic products.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Temperature monitoring in storage areas<\/strong>: automatic detection of abnormal temperature variations in ATEX zones (paints, pharmaceuticals, sensitive chemicals).<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Detection of valve, hatch or door opening<\/strong>: alerts in the event of unauthorized opening of tanker trucks, doors to protected areas or sensitive access.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Operator geolocation<\/strong>: real-time tracking of personnel positions in hazardous areas, with alerts in the event of entry into a dangerous zone or emergency situation.<\/li>\n<\/ul>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\"><strong><strong>ELA Innovation launches its range of ATEX BLE sensors for industrial IoT<\/strong><\/strong><\/h2>\n\n<p>Aware of these challenges, ELA Innovation is leveraging its nearly 25 years of expertise in heavy-duty IoT sensors to offer a new ATEX-certified range.<br\/>Developed for ATEX 1* zones, this range is based on Bluetooth Low Energy technology and consists of four complementary products:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Blue PUCK ID Ex: equipment identification and traceability.<\/li>\n\n\n\n<li>Blue PUCK T Ex : temperature measurement.<\/li>\n\n\n\n<li>Blue PUCK MAG Ex: opening detection (valves, doors, hatches).<\/li>\n\n\n\n<li>Blue PUCK MOV Ex: motion and position detection.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p><a href=\"https:\/\/elainnovation.com\/en\/products-catalog\/?cats[]=ATEX\">More information on our ATEX range<\/a><\/p>\n\n<p>These sensors are <strong>wireless<\/strong>, <strong>100% autonomous<\/strong> and designed to operate for several years on battery power (over 10 years depending on operating conditions), which drastically reduces the need for maintenance in high-risk areas.<br\/><strong>IP68 certified<\/strong>, they withstand the most demanding environments: high-pressure washing, humidity, dust, extreme temperature variations.<\/p>\n\n<p>This ATEX BLE range is particularly suited to the oil &amp; gas, industrial chemicals, food processing and hazardous materials logistics sectors, where safety, robustness and regulatory compliance are non-negotiable.<\/p>\n\n<p><em>*Clarification on Zone 1: for the products presented in this article, ATEX certification concerns only explosive atmospheres of flammable gases, vapors and mists (category G).<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In industry, certain zones are classified as &#8220;explosive atmospheres&#8221;: a simple spark or overheating can cause an explosion. The ATEX standard provides a precise framework for the design, marketing and use of equipment in these high-risk environments. For integrators of IoT solutions, understanding ATEX is essential before deploying sensors, beacons or beacons in oil &amp; [&hellip;]<\/p>\n","protected":false},"author":543,"featured_media":44277,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[52],"tags":[],"class_list":["post-44281","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ATEX standard: definition, zones and challenges for industrial IoT<\/title>\n<meta name=\"description\" content=\"Find out more about the ATEX standard, risk zones (0, 1, 2, 20, 21, 22) and the challenges of industrial IoT in explosive atmospheres.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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