{"id":4861,"date":"2026-01-23T21:53:37","date_gmt":"2026-01-23T21:53:37","guid":{"rendered":"https:\/\/yunrui-controls.com\/?post_type=products&#038;p=4861"},"modified":"2026-03-29T16:14:33","modified_gmt":"2026-03-29T16:14:33","slug":"yokogawa-ejx438b","status":"publish","type":"products","link":"https:\/\/www.yunrui-controls.com\/vi\/products\/yokogawa-ejx438b\/","title":{"rendered":"Yokogawa EJX438B: \u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t k\u00edn m\u00e0ng ng\u0103n kh\u00f4ng d\u00e2y | Gi\u1ea3i ph\u00e1p c\u00e1ch ly t\u1eeb xa ISA100.11a"},"content":{"rendered":"<h3 data-path-to-node=\"2\">Nh\u1eefng l\u1ee3i \u00edch v\u00e0 \u01b0u \u0111i\u1ec3m ch\u00ednh<\/h3>\n<p data-path-to-node=\"3\">T\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng c\u00e1ch ly m\u00f4i ch\u1ea5t trong qu\u00e1 tr\u00ecnh: M\u00e0ng ch\u1eafn t\u1eeb xa \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t r\u00e0o c\u1ea3n ch\u1eafc ch\u1eafn gi\u1eefa ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh v\u00e0 ph\u1ea7n t\u1eed c\u1ea3m bi\u1ebfn c\u1ee7a b\u1ed9 truy\u1ec1n t\u00edn hi\u1ec7u. \u0110\u01b0\u1ee3c k\u1ebft n\u1ed1i th\u00f4ng qua c\u00e1c mao qu\u1ea3n ch\u1ee9a ch\u1ea5t l\u1ecfng, h\u1ec7 th\u1ed1ng n\u00e0y cho ph\u00e9p \u0111o \u00e1p su\u1ea5t ch\u00ednh x\u00e1c trong c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 vi\u1ec7c ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp c\u00f3 th\u1ec3 g\u00e2y t\u1eafc ngh\u1ebdn, \u0103n m\u00f2n ho\u1eb7c h\u01b0 h\u1ecfng do nhi\u1ec7t cho c\u1ea3m bi\u1ebfn.<\/p>\n<p data-path-to-node=\"4\"><span class=\"citation-1035 citation-end-1035\">Gi\u1ea3m thi\u1ec3u chi ph\u00ed l\u1eafp \u0111\u1eb7t v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng: L\u00e0 m\u1ed9t thi\u1ebft b\u1ecb kh\u00f4ng d\u00e2y, EJX438B gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf nhu c\u1ea7u \u0111i d\u00e2y, \u1ed1ng d\u1eabn v\u00e0 m\u00e1ng c\u00e1p.<\/span> \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t c\u00f3 l\u1ee3i cho c\u00e1c kho ch\u1ee9a d\u1ea7u quy m\u00f4 l\u1edbn, gi\u00e0n khoan ngo\u00e0i kh\u01a1i ho\u1eb7c c\u00e1c khu v\u1ef1c nguy hi\u1ec3m, n\u01a1i vi\u1ec7c l\u1eafp \u0111\u1eb7t h\u1ec7 th\u1ed1ng d\u00e2y d\u1eabn truy\u1ec1n th\u1ed1ng g\u1eb7p kh\u00f3 kh\u0103n ho\u1eb7c kh\u00f4ng an to\u00e0n.<\/p>\n<p data-path-to-node=\"5\"><span class=\"citation-1034 citation-end-1034\">M\u1ea1ng kh\u00f4ng d\u00e2y an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady: Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n ISA100.11a, EJX438B cung c\u1ea5p kh\u1ea3 n\u0103ng truy\u1ec1n th\u00f4ng hai chi\u1ec1u an to\u00e0n.<\/span> <span class=\"citation-1033 citation-end-1033\">N\u00f3 truy\u1ec1n t\u1ea3i c\u00e1c bi\u1ebfn s\u1ed1 quy tr\u00ecnh c\u0169ng nh\u01b0 c\u00e1c tham s\u1ed1 c\u1ea5u h\u00ecnh, \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd ho\u00e0n to\u00e0n t\u1eeb xa trong m\u1ed9t h\u1ec7 sinh th\u00e1i kh\u00f4ng d\u00e2y c\u00f4ng nghi\u1ec7p an to\u00e0n.<\/span><\/p>\n<p data-path-to-node=\"6\"><span class=\"citation-1032 citation-end-1032\">M\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng c\u1ef1c th\u1ea5p: \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi pin c\u00f3 tu\u1ed5i th\u1ecd cao, b\u1ed9 ph\u00e1t s\u1eed d\u1ee5ng hai pin lithium-thionyl chloride dung l\u01b0\u1ee3ng cao.<\/span> Ki\u1ebfn tr\u00fac hi\u1ec7u qu\u1ea3 cao n\u00e0y cho ph\u00e9p EJX438B ho\u1ea1t \u0111\u1ed9ng t\u1ef1 ch\u1ee7 trong nhi\u1ec1u n\u0103m, \u0111\u1ea3m b\u1ea3o t\u00ednh kh\u1ea3 d\u1ee5ng d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh v\u1edbi y\u00eau c\u1ea7u b\u1ea3o tr\u00ec t\u1ed1i thi\u1ec3u.<\/p>\n<p data-path-to-node=\"7\"><span class=\"citation-1031 citation-end-1031\">T\u1ed1c \u0111\u1ed9 xu\u1ea5t b\u1ea3n d\u1eef li\u1ec7u linh ho\u1ea1t: B\u1ed9 ph\u00e1t cho ph\u00e9p l\u1ef1a ch\u1ecdn th\u1eddi gian c\u1eadp nh\u1eadt t\u1eeb 0,5 gi\u00e2y \u0111\u1ebfn 60 ph\u00fat.<\/span> \u0110i\u1ec1u n\u00e0y cho ph\u00e9p ng\u01b0\u1eddi v\u1eadn h\u00e0nh t\u1ed1i \u01b0u h\u00f3a thi\u1ebft b\u1ecb \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n quy tr\u00ecnh t\u1ed1c \u0111\u1ed9 cao ho\u1eb7c \u0111\u1ec3 gi\u00e1m s\u00e1t h\u00e0ng t\u1ed3n kho s\u1ed1 l\u01b0\u1ee3ng l\u1edbn ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, t\u00f9y thu\u1ed9c v\u00e0o nhu c\u1ea7u \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p>\n<p data-path-to-node=\"8\">C\u00e1c t\u00f9y ch\u1ecdn l\u1eafp \u0111\u1eb7t linh ho\u1ea1t: H\u1ec7 th\u1ed1ng m\u00e0ng ch\u1eafn cho ph\u00e9p l\u1eafp \u0111\u1eb7t b\u1ed9 truy\u1ec1n t\u00edn hi\u1ec7u \u1edf kho\u1ea3ng c\u00e1ch xa so v\u1edbi \u0111i\u1ec3m k\u1ebft n\u1ed1i quy tr\u00ecnh. T\u00ednh linh ho\u1ea1t n\u00e0y r\u1ea5t l\u00fd t\u01b0\u1edfng \u0111\u1ec3 \u0111o \u00e1p su\u1ea5t trong c\u00e1c khu v\u1ef1c c\u00f3 \u0111\u1ed9 rung cao ho\u1eb7c tr\u00ean c\u00e1c b\u1ec3 ch\u1ee9a \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed cao, n\u01a1i c\u1ea7n \u0111\u1eb7t m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb \u1edf t\u1ea7m m\u1eaft cho \u0111\u1ed9i ng\u0169 b\u1ea3o tr\u00ec.<\/p>\n<h4 data-path-to-node=\"9\">\u0110\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt<\/h4>\n<p data-path-to-node=\"10\">Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng: \u0110o \u00e1p su\u1ea5t kh\u00f4ng d\u00e2y v\u1edbi ch\u1ee9c n\u0103ng c\u00e1ch ly m\u00e0ng ch\u1eafn t\u1eeb xa.<\/p>\n<p data-path-to-node=\"11\">Giao th\u1ee9c kh\u00f4ng d\u00e2y: Tu\u00e2n th\u1ee7 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a giao th\u1ee9c ISA100.11a.<\/p>\n<p data-path-to-node=\"12\">D\u1ecbch v\u1ee5: \u0110o l\u01b0\u1eddng ch\u1ea5t l\u1ecfng, kh\u00ed v\u00e0 h\u01a1i n\u01b0\u1edbc (\u00e1p su\u1ea5t, m\u1ee9c, l\u01b0u l\u01b0\u1ee3ng v\u00e0 m\u1eadt \u0111\u1ed9).<\/p>\n<p data-path-to-node=\"13\"><span class=\"citation-1030 citation-end-1030\">Ngu\u1ed3n \u0111i\u1ec7n: Hai pin lithium-thionyl clorua (Li-SOCl2) dung l\u01b0\u1ee3ng cao.<\/span><\/p>\n<p data-path-to-node=\"14\">Th\u1eddi gian c\u1eadp nh\u1eadt: C\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn t\u1eeb 0,5 gi\u00e2y \u0111\u1ebfn 60 ph\u00fat.<\/p>\n<p data-path-to-node=\"15\">C\u1ea5u h\u00ecnh: C\u1ea5u h\u00ecnh h\u1ed3ng ngo\u1ea1i (IR) an to\u00e0n v\u00e0 qu\u1ea3n l\u00fd th\u00f4ng s\u1ed1 t\u1eeb xa kh\u00f4ng d\u00e2y.<\/p>\n<p data-path-to-node=\"16\">Lo\u1ea1i gio\u0103ng: Gio\u0103ng m\u00e0ng t\u1eeb xa \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i th\u00f4ng qua c\u00e1c \u1ed1ng mao d\u1eabn.<\/p>\n<p data-path-to-node=\"17\">\u0110\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh: \u0110\u01b0\u1ee3c trang b\u1ecb c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn c\u1ed9ng h\u01b0\u1edfng silicon DPharp c\u1ee7a Yokogawa.<\/p>\n<h5 data-path-to-node=\"18\">L\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng<\/h5>\n<p data-path-to-node=\"19\">EJX438B l\u00e0 l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean cho vi\u1ec7c \u0111o \u00e1p su\u1ea5t kh\u00f4ng d\u00e2y trong tr\u01b0\u1eddng h\u1ee3p c\u1ea7n c\u00e1ch ly m\u00f4i ch\u1ea5t trong qu\u00e1 tr\u00ecnh v\u00e0 vi\u1ec7c \u0111\u1ea5u d\u00e2y tr\u1ef1c ti\u1ebfp kh\u00f4ng kh\u1ea3 thi.<br \/>\nC\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 \u1ee9ng d\u1ee5ng ch\u00ednh:<\/p>\n<ul data-path-to-node=\"21\">\n<li>\n<p data-path-to-node=\"21,0,0\">L\u1ecdc d\u1ea7u v\u00e0 h\u00f3a d\u1ea7u: Gi\u00e1m s\u00e1t \u00e1p su\u1ea5t v\u00e0 m\u1ee9c ch\u1ea5t l\u1ecfng trong c\u00e1c c\u1ed9t ch\u01b0ng c\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 b\u1ec3 ch\u1ee9a nh\u1ef1a \u0111\u01b0\u1eddng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"21,1,0\">Ng\u00e0nh th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ed3 u\u1ed1ng: Gi\u00e1m s\u00e1t \u00e1p su\u1ea5t v\u1ec7 sinh trong c\u00e1c th\u00f9ng tr\u1ed9n l\u1edbn v\u00e0 b\u1ec3 l\u00ean men, n\u01a1i c\u1ea7n l\u1eafp \u0111\u1eb7t t\u1eeb xa.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"21,2,0\">Ng\u00e0nh d\u1ea7u kh\u00ed: Theo d\u00f5i \u00e1p su\u1ea5t thi\u1ebft b\u1ecb t\u00e1ch v\u00e0 m\u1ee9c ch\u1ea5t l\u1ecfng trong b\u1ec3 ch\u1ee9a t\u1ea1i c\u00e1c \u0111\u1ecba \u0111i\u1ec3m s\u1ea3n xu\u1ea5t t\u1eeb xa, kh\u00f4ng ng\u01b0\u1eddi v\u1eadn h\u00e0nh.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"21,3,0\">S\u1ea3n xu\u1ea5t h\u00f3a ch\u1ea5t: \u0110o \u00e1p su\u1ea5t trong c\u00e1c l\u00f2 ph\u1ea3n \u1ee9ng x\u1eed l\u00fd axit \u0103n m\u00f2n ho\u1eb7c polyme \u0111\u00f4ng \u0111\u1eb7c \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"21,4,0\">Ng\u00e0nh d\u01b0\u1ee3c ph\u1ea9m: Qu\u1ea3n l\u00fd \u00e1p su\u1ea5t trong qu\u00e1 tr\u00ecnh s\u1ea5y ch\u00e2n kh\u00f4ng v\u00e0 bay h\u01a1i v\u00f4 tr\u00f9ng v\u1edbi nhu c\u1ea7u c\u1ea3m bi\u1ebfn t\u1eeb xa.<\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Yokogawa EJX438B l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111o \u00e1p su\u1ea5t kh\u00f4ng d\u00e2y hi\u1ec7u su\u1ea5t cao t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng m\u00e0ng ch\u1eafn k\u00edn t\u1eeb xa. Thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111o \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng, kh\u00ed ho\u1eb7c h\u01a1i n\u01b0\u1edbc \u0111\u1ed3ng th\u1eddi b\u1ea3o v\u1ec7 c\u1ea3m bi\u1ebfn kh\u1ecfi c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t trong quy tr\u00ecnh nh\u01b0 nhi\u1ec7t \u0111\u1ed9 cao, h\u00f3a ch\u1ea5t \u0103n m\u00f2n ho\u1eb7c ch\u1ea5t l\u1ecfng nh\u1edbt. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng giao th\u1ee9c kh\u00f4ng d\u00e2y ISA100.11a v\u00e0 ngu\u1ed3n pin b\u00ean trong, EJX438B lo\u1ea1i b\u1ecf nhu c\u1ea7u s\u1eed d\u1ee5ng c\u00e1p t\u00edn hi\u1ec7u v\u00e0 ngu\u1ed3n \u0111i\u1ec7n \u0111\u1eaft ti\u1ec1n, cung c\u1ea5p m\u1ed9t gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 linh ho\u1ea1t \u0111\u1ec3 gi\u00e1m s\u00e1t m\u1ee9c v\u00e0 \u00e1p su\u1ea5t t\u1eeb xa trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p kh\u1eafc nghi\u1ec7t nh\u1ea5t.<\/p>","protected":false},"author":1,"featured_media":4862,"parent":0,"menu_order":594,"comment_status":"open","ping_status":"open","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 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"tags":[324],"brands":[164,111],"model_series":[],"industries":[54,53,58],"product_cat":[94,92],"class_list":["post-4861","products","type-products","status-publish","format-standard","has-post-thumbnail","hentry","tag-yokogawa","brands-gauge-pressure-transmitters-yokogawa","brands-yokogawa","industries-chemical-petrochemical","industries-oil-gas","industries-pharmaceutical-life-sciences","product_cat-gauge-pressure-transmitters","product_cat-transmitters"],"acf":{"output":"","accuracy":"","range":"","power":"Two high-capacity lithium-thionyl chloride (Li-SOCl2) 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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>Yokogawa EJX438B | High Quality &amp; Best Price<\/title>\n<meta name=\"description\" content=\"Get the best price on the Yokogawa EJX438B: Wireless Diaphragm Sealed Gauge Pressure. As a leading distributor in China, Yunrui Control guarantees origi...\" \/>\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\/vi\/products\/yokogawa-ejx438b\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Yokogawa EJX438B: Wireless Diaphragm Sealed Gauge Pressure | ISA100.11a Remote Isolation Solution\" \/>\n<meta property=\"og:description\" content=\"Get the best price on the Yokogawa EJX438B: Wireless Diaphragm Sealed Gauge Pressure. 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