{"id":7772,"date":"2017-09-28T03:07:48","date_gmt":"2017-09-28T06:07:48","guid":{"rendered":"https:\/\/blog.wika.com\/pt\/\/?p=7772"},"modified":"2024-07-02T10:37:10","modified_gmt":"2024-07-02T13:37:10","slug":"4-20-ma-2-fios-3-fios","status":"publish","type":"post","link":"https:\/\/blog.wika.com\/pt\/know-how\/4-20-ma-2-fios-3-fios\/","title":{"rendered":"Diferen\u00e7a do sinal de sa\u00edda de 4-20 mA em tecnologia de 2 fios e 3 fios nos sensores de press\u00e3o"},"content":{"rendered":"<p><strong>Qual \u00e9 exatamente a diferen\u00e7a entre o sinal de sa\u00edda de 4-20 mA em tecnologia de 2 e 3 fios? Esta quest\u00e3o \u00e9 melhor respondida do ponto de vista do usu\u00e1rio: um sinal de sa\u00edda na tecnologia de 2 fios significa:<\/strong><\/p>\n<ul style=\"list-style-type: square\">\n<li>Uma menor quantidade de cabos \u00e9 necess\u00e1ria.<\/li>\n<li>Melhor prote\u00e7\u00e3o EMC, uma vez que as interfer\u00eancias podem ser filtradas mais facilmente.<\/li>\n<li>Melhor prote\u00e7\u00e3o contra erros de fia\u00e7\u00e3o<\/li>\n<\/ul>\n<p>A \u00fanica vantagem da tecnologia de 3 fios \u00e9 a possibilidade de cargas resistivas mais elevadas, isto \u00e9, o loop de corrente tamb\u00e9m pode ser operado em um instrumento de medi\u00e7\u00e3o de imped\u00e2ncia de entrada relativamente alta. <br \/>\nConclus\u00e3o: com exce\u00e7\u00e3o do requisito de carga resistiva alta, 4-20 mA a tecnologia de 2 fios oferece vantagens claras do usu\u00e1rio &#8211; tamb\u00e9m em rela\u00e7\u00e3o a outros sinais, como 0-10 V.<\/p>\n<p>Consulte nosso site sobre os <a href=\"https:\/\/www.wika.com\/pt-br\/sensores_de_pressao.WIKA\" target=\"_blank\" rel=\"noopener external nofollow\" class=\"ext-link\" onclick=\"this.target=&#039;_blank&#039;;\">sensores de press\u00e3o<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Qual \u00e9 exatamente a diferen\u00e7a entre o sinal de sa\u00edda de 4-20 mA em tecnologia de 2 e 3 fios? Esta quest\u00e3o \u00e9 melhor respondida do ponto de vista do usu\u00e1rio: um sinal de sa\u00edda na tecnologia de 2 fios significa: Uma menor quantidade de cabos \u00e9 necess\u00e1ria. Melhor prote\u00e7\u00e3o EMC, uma vez que as [&hellip;]<\/p>\n","protected":false},"author":145,"featured_media":7773,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13],"tags":[364,77],"class_list":["post-7772","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-know-how","tag-conexo-eltrica","tag-sensor-pressao"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sinal de sa\u00edda nos sensores de press\u00e3o: diferen\u00e7as- WIKA blog<\/title>\n<meta name=\"description\" content=\"Qual \u00e9 exatamente a diferen\u00e7a entre o sinal de sa\u00edda de 4-20 mA em tecnologia de 2 e 3 fios? 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