{"id":9455,"date":"2023-11-01T14:27:57","date_gmt":"2023-11-01T14:27:57","guid":{"rendered":"https:\/\/volleyballvnl.com\/?p=9455"},"modified":"2023-11-01T14:27:57","modified_gmt":"2023-11-01T14:27:57","slug":"what-is-the-best-ignition-protection-type-for-uhp-pressure-transducers","status":"publish","type":"post","link":"https:\/\/volleyballvnl.com\/?p=9455","title":{"rendered":"What is the best ignition protection type for UHP pressure transducers?"},"content":{"rendered":"\n<p>The leading ignition protection type is critical for the electrical connection of a pressure sensor with explosion protection. It does not necessarily have to be the main one with the stricter requirements. This applies, for instance, for the UHP pressure transducers of the WU series from WIKA. They have been designed for use in semiconductor production.<br\/>Explosion protection can be an indispensable safety precaution there. This is due to the substances required for manufacturing include highly flammable gases. Consequently, there is a threat of an explosive atmosphere forming.<br\/>Explosion protection concept<br\/>UHP pressure transducers for such processes should be made with the corresponding safety. In addition to their small design and specific process connections, the models WUC-1x and WU-2x have a comprehensive explosion protection concept. The marking of the instruments provides information on this:<br\/>II 3G Ex ec ic IIC T6\/T5\/T4 Gc X<br\/>The abbreviations listed in them mean, in greater detail:<br\/>II 3G:<br\/>Equipment group 2 (all areas except mining), may be used in zone 2 (rare and short-term Ex atmosphere).<br\/>Ex ec ic:<br\/>Ignition protection types ?ec? (increased safety) and ?ic? (intrinsically  <a href=\"http:\/\/gourmetgatheringspro.xyz\">\u0e40\u0e01\u0e08\u0e27\u0e31\u0e14\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e19\u0e49\u0e3310\u0e1a\u0e32\u0e23\u0e4c<\/a> ).<br\/>?Ex ec? has replaced the ignition protection type ?Ex nA? (non-sparking) because the start of 2022. However, this will not affect the Ex concept of the instruments.<br\/>IIC:<br\/>Explosion group (here: gases, resistive ignition energy of 40 \u00ef\u00bf\u00bdJ, suitable for hydrogen\/acetylene).<br\/>T6\/T5\/T4:<br\/>Temperature classes. T6 because the highest requirement means a maximum permissible surface temperature in the Ex environment < 85 \u00ef\u00bf\u00bdC (max. surface temperature of the WUC-1x and WU-2x: 40 \u00ef\u00bf\u00bdC).<br\/>Gc:<br\/>?Equipment Protection Level? (EPL) for zone 2 per IEC 60079-0<br\/>X:<br\/>Specific requirements which are listed in the operating instructions (for instance, the best mating connector).<br\/>?ec? is the leading ignition protection type<br\/>It really is noticeable that the marking contains two ignition protection types. However, only 1 is pertinent for the electrical connection: the best ignition protection type. Regarding the pressure transducers from the WU series, this can be the Ex ec (Ex nA up to 2022) mentioned first and not the stricter Ex ic. This can also be seen in the connection values in the info sheet and operating instructions. Only the specification of the utmost supply voltage UN = 30 V, that is also stated in the IECEx certificate, is relevant here.<br\/>What does the classification ?Ex ic? are a symbol of? It only pertains to the potentiometer of the transducer. The resistive component comes with an intrinsically safe circuit and may therefore be adjusted to improve zero drift during operation. Within their overall form, the WU models usually do not require an intrinsically safe circuit. However, they need to never be disconnected from the circuit during operation or when an Ex atmosphere exists.<br\/>Note<br\/>More info on the WUC-1x and WU-2x UHP pressure transducers and on the subject of hydrogen are available on the WIKA website. For those who have any questions, your contact will gladly help you.<br\/>Also read our articles<br\/>Ex protection: The most frequent ignition protection types for sensors in gas hazardous areas<br\/>Ex protection: The difference between your zone and division model<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The leading ignition protection type is critical for the electrical connection of a pressure sensor with explosion protection. It does not necessarily have to be the main one with the stricter requirements. This applies, for instance, for the UHP pressure transducers of the WU series from WIKA. They have been designed for use in semiconductor [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9455","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=\/wp\/v2\/posts\/9455","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9455"}],"version-history":[{"count":1,"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=\/wp\/v2\/posts\/9455\/revisions"}],"predecessor-version":[{"id":9456,"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=\/wp\/v2\/posts\/9455\/revisions\/9456"}],"wp:attachment":[{"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9455"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9455"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/volleyballvnl.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9455"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}