{"id":6537,"date":"2023-09-18T18:49:43","date_gmt":"2023-09-18T10:49:43","guid":{"rendered":"https:\/\/www.dcl-controls.com\/?p=6537"},"modified":"2023-09-18T18:49:43","modified_gmt":"2023-09-18T10:49:43","slug":"gb-t-3369-1-2008-iec-60381-1-1982","status":"publish","type":"post","link":"https:\/\/dcl-actuator.com\/en_us\/2023\/09\/18\/gb-t-3369-1-2008-iec-60381-1-1982\/","title":{"rendered":"Electric actuator current signal 4-20mA Applicable standards - GB\/T 3369.1-2008\/IEC 60381-1:1982"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"6537\" class=\"elementor elementor-6537\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4ad6800 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"4ad6800\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-448b26a\" data-id=\"448b26a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2d2988c elementor-widget elementor-widget-text-editor\" data-id=\"2d2988c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Electric actuator current signal 4-20mA applicable standards:<\/p><ul><li>Analog signals for process control systems Part 1: DC current signals (GB\/T 3369.1-2008\/IEC 60381-1:1982)<\/li><li>Analogue signals for process control systems-Part 1: Direct current signals (IEC 60381-1:1982, IDT)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d95a9b elementor-widget elementor-widget-image\" data-id=\"6d95a9b\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"678\" height=\"1028\" src=\"https:\/\/dcl-actuator.com\/wp-content\/uploads\/2023\/09\/gbt3369-1-2008-IEC-60381-1-1982.png\" class=\"attachment-full size-full wp-image-6539\" alt=\"GB\/T 3369.1-2008\/IEC 60381-1:1982 - Analog signals for process control systems - Part 1: DC current signals\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-314b810 elementor-widget elementor-widget-heading\" data-id=\"314b810\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Preface<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-303746d elementor-widget elementor-widget-text-editor\" data-id=\"303746d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>GB\/T 3369 Analog Signals for Process Control Systems is divided into the following two parts:<br \/>-Part 1: DC current signals;<br \/>-Part 2: DC voltage signals.<br \/>This part is Part 1 of GB\/T 3369.<br \/>This part is equivalent to IEC 60381-1:1982 \"Analog signals for process control systems, Part 1: DC current signals\".<br \/>According to GB\/T1.1-2000 Guidelines for Standardized Work, Part 1: Structure of Standards and Rules for their Preparation, IEC 60381-1.<br \/>1982 The following editorial changes were made:<br \/>(a) The words \"this standard\" have been replaced by the words \"this part\".<br \/>b) The preamble to IEC 60381-1:1982 was deleted;<br \/>c) Wherever \"IEC 60381\" appears, replace it with \"GB\/T 3369\".<br \/>d) Replace the comma \",\" with a decimal point \". \"instead of a comma as a decimal point\",\".<br \/>This part replaces GB\/T 3369-1989 Analog DC Current Signal for Industrial Automation Instrumentation.<br \/>Compared with GB\/T 3369-1989, the main changes are as follows:<br \/>--The name of the standard was changed from Analog DC Current Signal for Industrial Automation Instrumentation to Analog Signal for Process Control System Part 1:<br \/>DC Current Signals;.<br \/>-- The words \"this standard\" have been replaced by the words \"this part\".<br \/>- Scope of application: GB\/T 3369-1989 adopts IEC 60381-1:1982 with reference to the scope of industrial automation instrumentation; this standard is equivalent to IEC 60381-1:1982 with the scope of industrial process measurement and control system. (Chapter 1 of GB\/T 3369-1989; Chapter 1 of this part).<br \/>--Replace \"Industrial automation instruments\" with \"Components\" in the scope (Chapter 1 of GB\/T3369-1989; Chapter 1 of this Part). (Chapter 1 of GB\/T3369-1989; Chapter 1 of this Part).<br \/>--The terms and definitions \"power supply\" and \"ripple content of the power supply voltage\" have been added to the terms and definitions section (2.9, 2.10 of this Part); \"power supply\" has been added to the terms and definitions section. The terms and definitions of \"power supply\" and \"ripple content of the power supply voltage\" have been added to the Terminology and Definitions section (2.9, 2.10 of this Part).<br \/>--The requirement for \"power supply\" has been added to the Technical Requirements section (3.7 of this section).<br \/>This part is proposed by the China Machinery Industry Federation.<br \/>This part is under the purview of the Second Sub-Technical Committee of the National Technical Committee for Standardization of Industrial Process Measurement and Control.<br \/>Responsible drafting unit of this part: Southwest University, China SIL Instrumentation Group.<br \/>Participants in the drafting of this part: Mechanical Industry Instrumentation Comprehensive Technology and Economy Research Institute, Beijing Mechanical Industry Automation Research Institute. Main drafters of this part: Liu Feng, Zhang Jiancheng, Zhu Peijun, Liu Jin.<br \/>Participants in the drafting of this part: Xiaosheng Feng and Bingbing Xie.<br \/>The successive issuances of the standards replaced by this part are:<br \/>-GB 3369- 1982.<br \/>-GB\/T 3369- 1989.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b08d07 elementor-widget elementor-widget-heading\" data-id=\"0b08d07\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Analog signals for process control systems<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17ad0d2 elementor-widget elementor-widget-text-editor\" data-id=\"17ad0d2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Part 1: DC current signals<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4e86d7 elementor-widget elementor-widget-heading\" data-id=\"a4e86d7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1 Scope<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43fc67c elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"43fc67c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>This part specifies analog direct current signals for use in the transmission of information between system components in industrial process measurement and control systems. This part does not apply to signals used entirely within a component.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b85ba9 elementor-widget elementor-widget-heading\" data-id=\"8b85ba9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2 Terminology and definitions<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0f75134 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"0f75134\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The following terms and definitions apply to this part.<br><strong>2.1<\/strong><br><strong>elements of industrial-process measurement and control systems<\/strong><br>Functional units for the conversion, processing or transmission of measured values, control variables, controlled variables and reference variables and their integrated combinations.<br><strong>2.2<\/strong><br><strong>Analogue direct current signal analogue direct current signal<\/strong><br>In industrial process measurement and control systems, a DC current signal used to transmit information that varies in a continuous manner over its range.<br><strong>2.3<\/strong><br><strong>range of an analogue direct current signal<\/strong><br>All values that lie within the defined limits.<br><strong>2.4<\/strong><br><strong>lower limit<\/strong><br>Specified range minimums.<br>Note: The lower limit value can be zero or a finite value, if it is zero, it is called \"true zero\", if it is a finite value, it is called \"live zero\".<br><strong>2.5<\/strong><br><strong>upper limit<\/strong><br>Maximum value of the specified range.<br><strong>2.6<\/strong><br><strong>Load impedance<\/strong><br>The sum of the impedance of all connected receiving elements and connecting wires within the signal circuit.<br><strong>2.7<\/strong><br><strong>ripple content of the direct current signal<\/strong><br>The ratio of the peak-to-peak value of the AC component to the range of the analog DC current signal.<br><strong>2.8<\/strong><br><strong>signal circuit common<\/strong><br>Multiple \"signal\" circuits may have a common direct electrical connection, which may or may not be grounded.<\/p>\n<p><strong>2.9<\/strong><br><strong>power supply<\/strong><br>Enables system components to generate DC current signals by providing the required DC power supply.<\/p>\n<p><strong>2.10<\/strong><br><strong>ripple content of the power supply voltage<\/strong><br>The ratio of the peak-to-peak value of the AC component to the actual supply voltage.<br><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5007d73 elementor-widget elementor-widget-heading\" data-id=\"5007d73\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3 Technical requirements<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-213a228 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"213a228\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>3.1 Range of analog DC current signals<\/strong><\/p><p>Table 1 gives the range that an analog DC current signal should have.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17b0424 elementor-widget elementor-widget-shortcode\" data-id=\"17b0424\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-48\" class=\"tablepress tablepress-id-48 tbody-has-connected-cells\">\n<thead>\n<tr class=\"row-1\">\n\t<th colspan=\"2\" class=\"column-1\">\u8868 1 \u76f4\u6d41\u7535\u6d41\u4fe1\u53f7\u7684\u8303\u56f4<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">\u4e0b\u9650\/mA<\/td><td class=\"column-2\">\u4e0a\u9650\/mA<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">4<br \/>\n0<\/td><td class=\"column-2\">20(a)<br \/>\n20(b)<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td colspan=\"2\" class=\"column-1\">a \u9996\u9009\u503c\u3002<br \/>\nb \u975e\u9996\u9009\u503c\uff0c\u4eca\u540e\u5c06\u4f1a\u88ab\u53d6\u6d88\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-48 from cache --><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3fb269b elementor-widget elementor-widget-text-editor\" data-id=\"3fb269b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong><span style=\"font-style: inherit; font-family: var( --e-global-typography-text-font-family ), Sans-serif; background-color: var(--ast-global-color-5);\">3.2 Simulating values outside the range of DC current signals<\/span><\/strong><\/p>\n<p>Where the preferred signal is used, the value of 0mA is reserved exclusively for indicating a signal circuit fault or power supply failure.<br \/><strong>3.3 Ripple content of DC current signals<\/strong><br \/>The ripple content of the signal shall be specified and shall not exceed 31 TP3T.<br \/>In cases where the information is taken from the instantaneous value of the signal, e.g., in fast multiplexed digital system components, provision should be made for the element's ripple<br \/>Wave content.<br \/><strong>3.4 Signal Common<\/strong><br \/>The signal common should be the lowest potential point in the signal circuit. If the signal common is connected to a power supply, it should be connected to the negative side of the power supply (or the 0 V side of a bipolar power supply).<br \/><strong>3.5 Grounding<\/strong><br \/>If the signal circuit requires grounding, the signal common or the negative end of the power supply (or the 0V end of a bipolar power supply) should be grounded.<br \/><strong>3.6 Load Impedance<\/strong><br \/>A variable or control system element shall be capable of continuously driving any load between 0\u03a9 and 300\u03a9.<br \/><strong>3.7 Power supply<\/strong><br \/>Any transformer system component using an external power supply shall operate normally when the supply voltage varies between 20 V (D.C.) and 30 V (D.C.).<br \/>The ripple content of the supply voltage shall be specified and shall not exceed 10% of the nominal supply voltage.<br \/>A stable power supply should be used.<br \/>For evaluation and comparison of system component characteristics, a reference supply voltage of 24 V (D.C.) is recommended.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2240b30 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2240b30\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d8e194 elementor-widget elementor-widget-text-editor\" data-id=\"0d8e194\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Related Technical Articles:<\/p><ul><li><a href=\"\/en_us\/tech\/why-voltage-signal-oscillate\/\">Why do voltage-type output signals oscillate under certain operating conditions?<\/a><\/li><li><a href=\"\/en_us\/tech\/actuator-immunity-4-20ma-vs-2-10v\/\">Electric actuator anti-interference performance competition (4-20mA VS 2-10V)<\/a><\/li><\/ul><p>Relevant technical standards<\/p><ul><li><a href=\"\/en_us\/tech\/gb-t-3369-2-2008-iec-60381-2-1978\/\">GB\/T 3369.2-2008\/IEC 60381-2:1978 Analog signals for process control systems - Part 2: DC voltage signals<\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Electric actuator current signal 4-20mA applicable standards: process control system with analog signal Part 1: DC current signal (GB\/T 336 [...]<\/p>","protected":false},"author":1,"featured_media":6539,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8],"tags":[52,53,55,57,65,66],"class_list":["post-6537","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","tag-fast-move-actuator","tag-actuator","tag-tech-ref","tag-general-actuator","tag-very-small-actuator-tag","tag-explosion-proof-actuator"],"acf":[],"_links":{"self":[{"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/posts\/6537","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/comments?post=6537"}],"version-history":[{"count":0,"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/posts\/6537\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/media\/6539"}],"wp:attachment":[{"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/media?parent=6537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/categories?post=6537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dcl-actuator.com\/en_us\/wp-json\/wp\/v2\/tags?post=6537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}