{"id":1347,"date":"2013-10-25T10:32:23","date_gmt":"2013-10-25T09:32:23","guid":{"rendered":"https:\/\/blog.wika.com\/en\/?p=1347"},"modified":"2021-11-30T10:34:24","modified_gmt":"2021-11-30T09:34:24","slug":"important-choose-explosion-proof-pressure-transmitters-carefully","status":"publish","type":"post","link":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/","title":{"rendered":"Why it is important to choose explosion-proof pressure transmitters carefully \u2026"},"content":{"rendered":"<p><strong>In 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\u00a0possessing the Ex-d protection type, also known as \u201cFlameproof\u201d \u00a0or \u201cExplosion proof\u201d. These are transmitters that are designed to be suitable for hazardous areas designated as Zone 1(21) or 2 (22) in accordance with the ATEX classification, and can be used in Class I, II or III areas in accordance with the North American classification.<\/strong><\/p>\n<h4>But what really makes an \u201cEx-d\u201c pressure transmitter so special?<\/h4>\n<p>An Ex-d pressure\u00a0sensor must have a flameproof \/ explosion-proof enclosure. This simply means that the transmitter\u2019s electronic components should be mounted inside a housing that has been carefully designed to ensure that, should an explosion occur within the enclosure, there is no possibility of the flame propagating outside the enclosure. The flame will be completely contained within the enclosure!<\/p>\n<ul>\n<li>A critical factor in the design of explosion-proof enclosures (Ex-d protection method) is the need for Flame Paths. These enable burnt gases, resulting from the explosion inside the pressure transmitter housing, to cool down as they exit the enclosure so that they are no longer able to ignite the potentially explosive atmosphere outside (the combustible fuel-air mixture in the surrounding area). The design of flame paths requires a great attention to detail to ensure they are long enough and narrow enough to cool down the \u2018escaping\u2019 gases to a level that ensures the safety of the application.<\/li>\n<li>Another important factor is the thickness of the enclosure walls, which must be carefully designed to ensure that heat transfer from within the enclosure &#8211; in the event of an internal explosion &#8211; will\u00a0not raise the temperature of the outer surface of the housing to a level where the combustible fuel-air mixture surrounding the pressure transmitter can be ignited.<\/li>\n<\/ul>\n<p>All of these factors mean that when you are looking for an explosion-proof pressure transmitter, you should find a reliable manufacturer with sufficient engineering experience to ensure that both the design and the manufacture of the transmitter meets the required standards and ensures the safety of your plant.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In 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\u00a0possessing the Ex-d protection type, also known as \u201cFlameproof\u201d \u00a0or \u201cExplosion proof\u201d. These are [&hellip;]<\/p>\n","protected":false},"author":43,"featured_media":1349,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[254,77],"class_list":["post-1347","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowhow","tag-ex-protection","tag-pressure-sensor"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Selection of explosion-proof pressure transmitters - WIKA blog<\/title>\n<meta name=\"description\" content=\"In 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\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Selection of explosion-proof pressure transmitters - WIKA blog\" \/>\n<meta property=\"og:description\" content=\"In 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\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/\" \/>\n<meta property=\"og:site_name\" content=\"WIKA blog\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"801\" \/>\n\t<meta property=\"og:image:height\" content=\"548\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Ahmad Desuki\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ahmad Desuki\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/\"},\"author\":{\"name\":\"Ahmad Desuki\",\"@id\":\"https:\/\/blog.wika.com\/en\/#\/schema\/person\/57ea89e0b49ba4a032c02321011b5cb6\"},\"headline\":\"Why it is important to choose explosion-proof pressure transmitters carefully \u2026\",\"datePublished\":\"2013-10-25T09:32:23+00:00\",\"dateModified\":\"2021-11-30T09:34:24+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/\"},\"wordCount\":379,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg\",\"keywords\":[\"Ex protection\",\"Pressure sensor\"],\"articleSection\":[\"Know-how\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/\",\"url\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/\",\"name\":\"Selection of explosion-proof pressure transmitters - WIKA blog\",\"isPartOf\":{\"@id\":\"https:\/\/blog.wika.com\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg\",\"datePublished\":\"2013-10-25T09:32:23+00:00\",\"dateModified\":\"2021-11-30T09:34:24+00:00\",\"author\":{\"@id\":\"https:\/\/blog.wika.com\/en\/#\/schema\/person\/57ea89e0b49ba4a032c02321011b5cb6\"},\"description\":\"In 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\",\"breadcrumb\":{\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#primaryimage\",\"url\":\"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg\",\"contentUrl\":\"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg\",\"width\":801,\"height\":548,\"caption\":\"illustration: Ex-d\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/blog.wika.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Why it is important to choose explosion-proof pressure transmitters carefully \u2026\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blog.wika.com\/en\/#website\",\"url\":\"https:\/\/blog.wika.com\/en\/\",\"name\":\"WIKA blog\",\"description\":\"Our blog offers many interesting articles on pressure, temperature, level, force, flow measurement calibration technology and provides insights into the WIKA Group.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blog.wika.com\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/blog.wika.com\/en\/#\/schema\/person\/57ea89e0b49ba4a032c02321011b5cb6\",\"name\":\"Ahmad Desuki\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/blog.wika.com\/en\/files\/2015\/03\/default_avatar-140x140.png\",\"url\":\"https:\/\/blog.wika.com\/en\/files\/2015\/03\/default_avatar-140x140.png\",\"contentUrl\":\"https:\/\/blog.wika.com\/en\/files\/2015\/03\/default_avatar-140x140.png\",\"caption\":\"Ahmad Desuki\"},\"url\":\"https:\/\/blog.wika.com\/en\/author\/addi\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Selection of explosion-proof pressure transmitters - WIKA blog","description":"In 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","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/","og_locale":"en_GB","og_type":"article","og_title":"Selection of explosion-proof pressure transmitters - WIKA blog","og_description":"In 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","og_url":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/","og_site_name":"WIKA blog","og_image":[{"width":801,"height":548,"url":"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg","type":"image\/jpeg"}],"author":"Ahmad Desuki","twitter_misc":{"Written by":"Ahmad Desuki","Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#article","isPartOf":{"@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/"},"author":{"name":"Ahmad Desuki","@id":"https:\/\/blog.wika.com\/en\/#\/schema\/person\/57ea89e0b49ba4a032c02321011b5cb6"},"headline":"Why it is important to choose explosion-proof pressure transmitters carefully \u2026","datePublished":"2013-10-25T09:32:23+00:00","dateModified":"2021-11-30T09:34:24+00:00","mainEntityOfPage":{"@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/"},"wordCount":379,"commentCount":0,"image":{"@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#primaryimage"},"thumbnailUrl":"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg","keywords":["Ex protection","Pressure sensor"],"articleSection":["Know-how"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/","url":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/","name":"Selection of explosion-proof pressure transmitters - WIKA blog","isPartOf":{"@id":"https:\/\/blog.wika.com\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#primaryimage"},"image":{"@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#primaryimage"},"thumbnailUrl":"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg","datePublished":"2013-10-25T09:32:23+00:00","dateModified":"2021-11-30T09:34:24+00:00","author":{"@id":"https:\/\/blog.wika.com\/en\/#\/schema\/person\/57ea89e0b49ba4a032c02321011b5cb6"},"description":"In 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","breadcrumb":{"@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#primaryimage","url":"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg","contentUrl":"https:\/\/blog.wika.com\/en\/files\/2013\/10\/Ex-d.jpg","width":801,"height":548,"caption":"illustration: Ex-d"},{"@type":"BreadcrumbList","@id":"https:\/\/blog.wika.com\/en\/knowhow\/important-choose-explosion-proof-pressure-transmitters-carefully\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/blog.wika.com\/en\/"},{"@type":"ListItem","position":2,"name":"Why it is important to choose explosion-proof pressure transmitters carefully \u2026"}]},{"@type":"WebSite","@id":"https:\/\/blog.wika.com\/en\/#website","url":"https:\/\/blog.wika.com\/en\/","name":"WIKA blog","description":"Our blog offers many interesting articles on pressure, temperature, level, force, flow measurement calibration technology and provides insights into the WIKA Group.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blog.wika.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Person","@id":"https:\/\/blog.wika.com\/en\/#\/schema\/person\/57ea89e0b49ba4a032c02321011b5cb6","name":"Ahmad Desuki","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/blog.wika.com\/en\/files\/2015\/03\/default_avatar-140x140.png","url":"https:\/\/blog.wika.com\/en\/files\/2015\/03\/default_avatar-140x140.png","contentUrl":"https:\/\/blog.wika.com\/en\/files\/2015\/03\/default_avatar-140x140.png","caption":"Ahmad Desuki"},"url":"https:\/\/blog.wika.com\/en\/author\/addi\/"}]}},"_links":{"self":[{"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/posts\/1347","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/users\/43"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/comments?post=1347"}],"version-history":[{"count":7,"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/posts\/1347\/revisions"}],"predecessor-version":[{"id":12546,"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/posts\/1347\/revisions\/12546"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/media\/1349"}],"wp:attachment":[{"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/media?parent=1347"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/categories?post=1347"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.wika.com\/en\/wp-json\/wp\/v2\/tags?post=1347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}