{"id":8018,"date":"2026-04-29T15:55:18","date_gmt":"2026-04-29T15:55:18","guid":{"rendered":"https:\/\/www.yunrui-controls.com\/?p=8018"},"modified":"2026-04-29T15:55:46","modified_gmt":"2026-04-29T15:55:46","slug":"yokogawa-eja-series-transmitters-troubleshooting","status":"publish","type":"post","link":"https:\/\/www.yunrui-controls.com\/th\/yokogawa-eja-series-transmitters-troubleshooting\/","title":{"rendered":"Yokogawa EJA Series Transmitters Troubleshooting: Diagnostic Codes and Corrective Actions"},"content":{"rendered":"<p data-path-to-node=\"2\">\u0e40\u0e14\u0e2d\u0e30 <a href=\"https:\/\/www.yunrui-controls.com\/th\/brands\/yokogawa\/\">\u0e42\u0e22\u0e42\u0e01\u0e01\u0e32\u0e27\u0e30<\/a> EJA series transmitters are a global standard for high-performance pressure and differential pressure measurement. While known for extreme durability, operational errors or hardware faults may occasionally trigger diagnostic messages via the local indicator or a BT200 communicator. This guide provides a systematic breakdown of these codes and the necessary steps to restore normal operation.<br \/>\n<img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-8019 aligncenter\" src=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb3-300x168.png\" alt=\"Original Yokogawa EJA Series Transmitters - China Supplier Yunrui - Large Stock Available\" width=\"888\" height=\"497\" srcset=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb3-300x168.png 300w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb3-1024x573.png 1024w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb3-768x430.png 768w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb3-1536x859.png 1536w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb3-2048x1145.png 2048w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb3-18x10.png 18w\" sizes=\"(max-width: 888px) 100vw, 888px\" \/><\/p>\n<hr data-path-to-node=\"3\" \/>\n<h2 data-path-to-node=\"4\">01 Diagnostic Code Reference Matrix<\/h2>\n<p data-path-to-node=\"5\">The following table outlines the most common error codes encountered in the field for <a href=\"https:\/\/www.yunrui-controls.com\/th\/brands\/yokogawa\/\">\u0e42\u0e22\u0e42\u0e01\u0e01\u0e32\u0e27\u0e30<\/a> EJA series transmitters.<\/p>\n<table data-path-to-node=\"6\">\n<thead>\n<tr>\n<td><strong>Indicator Display<\/strong><\/td>\n<td><strong>BT200 Display<\/strong><\/td>\n<td><strong>Cause<\/strong><\/td>\n<td><strong>Output Status<\/strong><\/td>\n<td><strong>Corrective Action<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"6,1,0,0\">NONE<\/span><\/td>\n<td><span data-path-to-node=\"6,1,1,0\">GOOD<\/span><\/td>\n<td><span data-path-to-node=\"6,1,2,0\">Normal operation<\/span><\/td>\n<td><span data-path-to-node=\"6,1,3,0\">Normal<\/span><\/td>\n<td><span data-path-to-node=\"6,1,4,0\">No action required<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,2,0,0\">ER.01<\/span><\/td>\n<td><span data-path-to-node=\"6,2,1,0\">CAP MODULE FAULT<\/span><\/td>\n<td><span data-path-to-node=\"6,2,2,0\">Capsule error<\/span><\/td>\n<td><span data-path-to-node=\"6,2,3,0\">Per D53 setting<\/span><\/td>\n<td><span data-path-to-node=\"6,2,4,0\">Replace capsule module<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,3,0,0\">ER.02<\/span><\/td>\n<td><span data-path-to-node=\"6,3,1,0\">AMP MODULE FAULT<\/span><\/td>\n<td><span data-path-to-node=\"6,3,2,0\">Amplifier error<\/span><\/td>\n<td><span data-path-to-node=\"6,3,3,0\">Per D53 setting<\/span><\/td>\n<td><span data-path-to-node=\"6,3,4,0\">Replace amplifier module<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,4,0,0\">ER.03<\/span><\/td>\n<td><span data-path-to-node=\"6,4,1,0\">OUT OF RANGE<\/span><\/td>\n<td><span data-path-to-node=\"6,4,2,0\">Input exceeds capsule limit<\/span><\/td>\n<td><span data-path-to-node=\"6,4,3,0\">Upper\/lower limit<\/span><\/td>\n<td><span data-path-to-node=\"6,4,4,0\">Check input pressure<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,5,0,0\">ER.04<\/span><\/td>\n<td><span data-path-to-node=\"6,5,1,0\">OUT OF SP RANGE<\/span><\/td>\n<td><span data-path-to-node=\"6,5,2,0\">Static pressure exceeds limit<\/span><\/td>\n<td><span data-path-to-node=\"6,5,3,0\">Current output<\/span><\/td>\n<td><span data-path-to-node=\"6,5,4,0\">Check static pressure<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,6,0,0\">ER.05<\/span><\/td>\n<td><span data-path-to-node=\"6,6,1,0\">OVER TEMP(CAP)<\/span><\/td>\n<td><span data-path-to-node=\"6,6,2,0\">Capsule temp out of range<\/span><\/td>\n<td><span data-path-to-node=\"6,6,3,0\">Current output<\/span><\/td>\n<td><span data-path-to-node=\"6,6,4,0\">Improve heat insulation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,7,0,0\">ER.06<\/span><\/td>\n<td><span data-path-to-node=\"6,7,1,0\">OVER TEMP(AMP)<\/span><\/td>\n<td><span data-path-to-node=\"6,7,2,0\">Amp temp out of range<\/span><\/td>\n<td><span data-path-to-node=\"6,7,3,0\">Current output<\/span><\/td>\n<td><span data-path-to-node=\"6,7,4,0\">Improve ventilation\/cooling<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,8,0,0\">ER.07<\/span><\/td>\n<td><span data-path-to-node=\"6,8,1,0\">OVER OUTPUT<\/span><\/td>\n<td><span data-path-to-node=\"6,8,2,0\">Output exceeds limit<\/span><\/td>\n<td><span data-path-to-node=\"6,8,3,0\">Upper\/lower limit<\/span><\/td>\n<td><span data-path-to-node=\"6,8,4,0\">Check input and range<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,9,0,0\">ER.08<\/span><\/td>\n<td><span data-path-to-node=\"6,9,1,0\">OVER DISPLAY<\/span><\/td>\n<td><span data-path-to-node=\"6,9,2,0\">Display value exceeds limit<\/span><\/td>\n<td><span data-path-to-node=\"6,9,3,0\">Upper\/lower limit<\/span><\/td>\n<td><span data-path-to-node=\"6,9,4,0\">Check display settings<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,10,0,0\">ER.09<\/span><\/td>\n<td><span data-path-to-node=\"6,10,1,0\">ILLEGAL LRV<\/span><\/td>\n<td><span data-path-to-node=\"6,10,2,0\">LRV exceeds setting range<\/span><\/td>\n<td><span data-path-to-node=\"6,10,3,0\">Hold output<\/span><\/td>\n<td><span data-path-to-node=\"6,10,4,0\">Correct the LRV setting<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,11,0,0\">ER.10<\/span><\/td>\n<td><span data-path-to-node=\"6,11,1,0\">ILLEGAL HRV<\/span><\/td>\n<td><span data-path-to-node=\"6,11,2,0\">HRV exceeds setting range<\/span><\/td>\n<td><span data-path-to-node=\"6,11,3,0\">Hold output<\/span><\/td>\n<td><span data-path-to-node=\"6,11,4,0\">Correct the HRV setting<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,12,0,0\">ER.11<\/span><\/td>\n<td><span data-path-to-node=\"6,12,1,0\">ILLEGAL SPAN<\/span><\/td>\n<td><span data-path-to-node=\"6,12,2,0\">Span exceeds setting range<\/span><\/td>\n<td><span data-path-to-node=\"6,12,3,0\">Hold output<\/span><\/td>\n<td><span data-path-to-node=\"6,12,4,0\">Correct the Span setting<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"6,13,0,0\">ER.12<\/span><\/td>\n<td><span data-path-to-node=\"6,13,1,0\">ZERO ADJ OVER<\/span><\/td>\n<td><span data-path-to-node=\"6,13,2,0\">Zero adjustment too large<\/span><\/td>\n<td><span data-path-to-node=\"6,13,3,0\">Current output<\/span><\/td>\n<td><span data-path-to-node=\"6,13,4,0\">Re-perform zero adjustment<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img decoding=\"async\" class=\"alignnone wp-image-8020\" src=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb31-225x300.jpg\" alt=\"Purchase original YOkogawa EJA Series Transmitters from Yunrui supplier.\" width=\"425\" height=\"567\" srcset=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb31-225x300.jpg 225w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb31-768x1024.jpg 768w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb31-1152x1536.jpg 1152w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb31-9x12.jpg 9w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb31.jpg 1440w\" sizes=\"(max-width: 425px) 100vw, 425px\" \/><img decoding=\"async\" class=\"alignnone wp-image-8021\" src=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb32-225x300.jpg\" alt=\"Original Yokogawa EJA Series - China Supplier Yunrui\" width=\"425\" height=\"567\" srcset=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb32-225x300.jpg 225w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb32-768x1024.jpg 768w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb32-1152x1536.jpg 1152w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb32-9x12.jpg 9w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb32.jpg 1440w\" sizes=\"(max-width: 425px) 100vw, 425px\" \/><\/p>\n<hr data-path-to-node=\"7\" \/>\n<h2 data-path-to-node=\"8\">02 Technical Deep Dive and Fail-Safe Logic<\/h2>\n<p data-path-to-node=\"9\">Understanding the underlying logic of the electronics in Yokogawa EJA series transmitters is essential for maintaining process safety and site reliability.<\/p>\n<ol start=\"1\" data-path-to-node=\"10\">\n<li>\n<p data-path-to-node=\"10,0,0\">Burnout Configuration (D53)<\/p>\n<p data-path-to-node=\"10,0,0\">Parameter D53 dictates the fail-safe state of the 4-20mA loop during critical hardware failures such as ER.01 or ER.02. To ensure the DCS or PLC can distinguish between a low pressure reading and a fault in the Yokogawa EJA series transmitters, the output is typically driven to High (<span class=\"math-inline\" data-math=\"\\ge\" data-index-in-node=\"313\">\u2265 <\/span> 21.6mA) or Low (\u2264 3.2mA). Standardizing this setting across your plant improves emergency response efficiency.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"10,1,0\">Managing Thermal Stress<\/p>\n<p data-path-to-node=\"10,1,0\">Diagnostic codes ER.05 and ER.06 indicate that the process heat or ambient temperature has exceeded the operating limits of the capsule or the amplifier. Frequent exposure to these limits will shorten the lifespan of the electronics in Yokogawa EJA series transmitters. In high-temperature applications, utilizing a remote diaphragm seal or an impulse line siphon is a recommended practice to dissipate heat before it reaches the transmitter body.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"10,2,0\">Static Pressure and Zero Stability<\/p>\n<p data-path-to-node=\"10,2,0\">For differential pressure units like the EJA110A, static pressure (ER.04) must remain within the Maximum Working Pressure (MWP) specified on the nameplate. It is also important to note that significant changes in static pressure can cause zero shifts in Yokogawa EJA series transmitters. Always perform a zero adjustment at the operating static pressure to ensure maximum accuracy.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-8022\" src=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb33-225x300.jpg\" alt=\"buy Yokogawa EJA Series Transmitters China Supplier Yunrui \" width=\"400\" height=\"533\" srcset=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb33-225x300.jpg 225w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb33-768x1024.jpg 768w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb33-1152x1536.jpg 1152w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb33-9x12.jpg 9w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb33.jpg 1440w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-8023\" src=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb34-225x300.jpg\" alt=\"buy Yokogawa EJA Series Transmitters China Supplier Yunrui large stock\" width=\"400\" height=\"533\" srcset=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb34-225x300.jpg 225w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb34-768x1024.jpg 768w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb34-1152x1536.jpg 1152w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb34-9x12.jpg 9w, https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/04\/\u6a2a\u6cb34.jpg 1280w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<\/li>\n<\/ol>\n<hr data-path-to-node=\"11\" \/>\n<h2 data-path-to-node=\"12\">03 Procurement and Technical Support<\/h2>\n<p data-path-to-node=\"13\">When sourcing replacement modules or new <a href=\"https:\/\/www.yunrui-controls.com\/th\/brands\/yokogawa\/\">\u0e42\u0e22\u0e42\u0e01\u0e01\u0e32\u0e27\u0e30<\/a> EJA series transmitters, technical verification of model suffixes and pressure ranges is critical to avoid illegal settings errors. Xi&#8217;an Yunrui Trading Co., Ltd. (Yunrui) provides professional assistance in selecting the correct configuration for industrial environments.<\/p>\n<p data-path-to-node=\"14\">Technical support includes assistance with LRV\/HRV calculations and verifying material compatibility for diaphragms and bolts. Maintaining a stock of common amplifier and capsule modules in the Xi&#8217;an warehouse ensures that field failures in Yokogawa EJA series transmitters can be addressed with minimal downtime. Global logistics and compliance management further ensure that critical instrumentation is delivered ready for installation.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Yokogawa EJA series transmitters are a global standard for high-performance pressure and differential pressure measurement. While known for extreme durability, operational errors or hardware faults may occasionally trigger diagnostic messages via the local indicator or a BT200 communicator. This guide provides a systematic breakdown of these codes and the necessary steps to restore normal [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8020,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[384,1],"tags":[],"class_list":["post-8018","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Troubleshooting Original Yokogawa EJA Series Transmitters - Yunrui Supplier<\/title>\n<meta name=\"description\" content=\"Comprehensive Guide to Original Yokogawa EJA Series Transmitter Fault Codes: Understanding Corrective Actions, Fail-safe Logic, and Maintenance Tips, provided by Yunrui Supplier\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.yunrui-controls.com\/th\/yokogawa-eja-series-transmitters-troubleshooting\/\" \/>\n<meta property=\"og:locale\" content=\"th_TH\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Yokogawa EJA Series Transmitters Troubleshooting: Diagnostic Codes and Corrective Actions\" \/>\n<meta property=\"og:description\" content=\"Comprehensive Guide to Original Yokogawa EJA Series Transmitter Fault Codes: Understanding Corrective Actions, Fail-safe Logic, and Maintenance Tips, provided by Yunrui Supplier\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.yunrui-controls.com\/th\/yokogawa-eja-series-transmitters-troubleshooting\/\" \/>\n<meta property=\"og:site_name\" content=\"Fisher, E+H &amp; 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