{"id":7554,"date":"2026-04-04T15:32:07","date_gmt":"2026-04-04T15:32:07","guid":{"rendered":"https:\/\/www.yunrui-controls.com\/?post_type=products&#038;p=7554"},"modified":"2026-04-04T15:33:57","modified_gmt":"2026-04-04T15:33:57","slug":"fisher-l2-and-l2sj-liquid-level-controllers","status":"publish","type":"products","link":"https:\/\/www.yunrui-controls.com\/vi\/products\/fisher-l2-and-l2sj-liquid-level-controllers\/","title":{"rendered":"B\u1ed9 \u0111i\u1ec1u khi\u1ec3n m\u1ee9c ch\u1ea5t l\u1ecfng Fisher L2 v\u00e0 L2sj"},"content":{"rendered":"<h2 data-path-to-node=\"3\">\u01afu \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i<\/h2>\n<ul data-path-to-node=\"4\">\n<li>\n<p data-path-to-node=\"4,0,0\">H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n logic \u0111\u00e1ng tin c\u1eady: R\u01a1le t\u1ef7 l\u1ec7 hai c\u1ea5p v\u1edbi t\u00e1c \u0111\u1ed9ng t\u00edch ph\u00e2n \u0111\u1ea3m b\u1ea3o b\u1ed9 \u0111i\u1ec1u khi\u1ec3n ph\u1ea3n h\u1ed3i m\u1ed9t c\u00e1ch c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c \u0111\u1ed1i v\u1edbi c\u00e1c thay \u0111\u1ed5i m\u1ee9c \u0111\u1ed9, mang l\u1ea1i ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 khi \u0111i\u1ec1u ki\u1ec7n quy tr\u00ecnh bi\u1ebfn \u0111\u1ed9ng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,1,0\">Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu \u00e1p su\u1ea5t v\u00e0 rung \u0111\u1ed9ng: Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c c\u00f4ng t\u1eafc phao \u0111\u01a1n gi\u1ea3n h\u01a1n, thi\u1ebft k\u1ebf L2 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a ma s\u00e1t v\u00f2ng ch\u1eef O v\u00e0 \u0111\u1ed9 nh\u1ea1y \u00e1p su\u1ea5t trong qu\u00e1 tr\u00ecnh. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 v\u1eabn \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 khi \u00e1p su\u1ea5t trong b\u00ecnh thay \u0111\u1ed5i, v\u00e0 n\u00f3 v\u1eabn ho\u1ea1t \u0111\u1ed9ng &quot;\u00eam \u00e1i&quot; trong c\u00e1c t\u00ecnh hu\u1ed1ng rung \u0111\u1ed9ng m\u1ea1nh.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,2,0\">Kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p su\u1ea5t c\u1ef1c cao: Khi \u0111\u01b0\u1ee3c trang b\u1ecb b\u1ed9 ph\u1eadn d\u1ecbch chuy\u1ec3n b\u1eb1ng Polyvinylclorua (PVC), c\u1ee5m c\u1ea3m bi\u1ebfn \u0111\u1ea1t ti\u00eau chu\u1ea9n ASME B16.34 CL1500. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft b\u1ecb t\u00e1ch v\u00e0 l\u1ecdc kh\u00ed \u00e1p su\u1ea5t cao.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,3,0\">T\u00ednh linh ho\u1ea1t t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng: B\u1ed9 \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u1ed9 d\u1ecbch chuy\u1ec3n \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh l\u1ea1i t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng thu\u1eadn ho\u1eb7c ngh\u1ecbch, l\u1eafp \u0111\u1eb7t theo chi\u1ec1u d\u1ecdc ho\u1eb7c chi\u1ec1u ngang \u2014 m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i \u0111\u1eb7t mua th\u00eam ph\u1ee5 t\u00f9ng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,4,0\">T\u00ednh th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng: Do kh\u00ed th\u1ea3i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u1eabn \u0111i b\u1eb1ng \u0111\u01b0\u1eddng \u1ed1ng, c\u00e1c thi\u1ebft b\u1ecb n\u00e0y r\u1ea5t l\u00fd t\u01b0\u1edfng cho c\u00e1c \u0111\u1ecba \u0111i\u1ec3m xa x\u00f4i n\u01a1i s\u1eed d\u1ee5ng kh\u00ed t\u1ef1 nhi\u00ean ng\u1ecdt l\u00e0m m\u00f4i ch\u1ea5t cung c\u1ea5p thay v\u00ec kh\u00ed n\u00e9n.<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"5\" \/>\n<h3 data-path-to-node=\"6\">C\u1ed1t l\u00f5i k\u1ef9 thu\u1eadt<\/h3>\n<table data-path-to-node=\"7\">\n<thead>\n<tr>\n<td><strong>T\u00ednh n\u0103ng<\/strong><\/td>\n<td><strong>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \/ Chi ti\u1ebft<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"7,1,0,0\">Lo\u1ea1i c\u1ea3m bi\u1ebfn<\/span><\/td>\n<td><span data-path-to-node=\"7,1,1,0\">Ki\u1ec3u d\u1ecbch chuy\u1ec3n (L\u1ef1c n\u1ed5i)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,2,0,0\">\u00c1p su\u1ea5t t\u1ed1i \u0111a<\/span><\/td>\n<td><span data-path-to-node=\"7,2,1,0\">CL1500 (v\u1edbi b\u1ed9 ph\u1eadn \u0111\u1ea9y PVC)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,3,0,0\">Cung c\u1ea5p ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng<\/span><\/td>\n<td><span data-path-to-node=\"7,3,1,0\">Kh\u00f4ng kh\u00ed ho\u1eb7c Kh\u00ed t\u1ef1 nhi\u00ean ng\u1ecdt<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,4,0,0\">H\u00e0nh \u0111\u1ed9ng ki\u1ec3m so\u00e1t<\/span><\/td>\n<td><span data-path-to-node=\"7,4,1,0\">C\u00f3 th\u1ec3 \u0111\u1ea3o chi\u1ec1u t\u1eeb tr\u01b0\u1eddng (thu\u1eadn ho\u1eb7c ngh\u1ecbch)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,5,0,0\">L\u1eafp \u0111\u1eb7t<\/span><\/td>\n<td><span data-path-to-node=\"7,5,1,0\">Theo chi\u1ec1u d\u1ecdc ho\u1eb7c chi\u1ec1u ngang (c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh t\u1ea1i ch\u1ed7)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,6,0,0\">Lo\u1ea1i d\u1ecbch v\u1ee5<\/span><\/td>\n<td><span data-path-to-node=\"7,6,1,0\">M\u1ee9c ch\u1ea5t l\u1ecfng ho\u1eb7c giao di\u1ec7n ch\u1ea5t l\u1ecfng-ch\u1ea5t l\u1ecfng<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,7,0,0\">B\u1ea2O TR\u00cc<\/span><\/td>\n<td><span data-path-to-node=\"7,7,1,0\">Thi\u1ebft k\u1ebf d\u1ea1ng m\u00f4-\u0111un gi\u00fap d\u1ec5 d\u00e0ng ki\u1ec3m tra gio\u0103ng.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,8,0,0\">T\u00edn hi\u1ec7u \u0111\u1ea7u ra<\/span><\/td>\n<td><span data-path-to-node=\"7,8,1,0\">T\u1ef7 l\u1ec7 kh\u00ed n\u00e9n<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr data-path-to-node=\"8\" \/>\n<h3 data-path-to-node=\"9\">\u1ee8ng d\u1ee5ng v\u00e0 c\u00e1c l\u0129nh v\u1ef1c c\u00f4ng nghi\u1ec7p<\/h3>\n<p data-path-to-node=\"10\">L2 v\u00e0 L2sj l\u00e0 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ti\u00eau chu\u1ea9n trong l\u0129nh v\u1ef1c v\u1eadn chuy\u1ec3n v\u00e0 khai th\u00e1c d\u1ea7u kh\u00ed, n\u01a1i \u0111\u1ed9 tin c\u1eady l\u00e0 y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 thi\u1ebfu.<\/p>\n<ul data-path-to-node=\"11\">\n<li>\n<p data-path-to-node=\"11,0,0\">S\u1ea3n xu\u1ea5t kh\u00ed t\u1ef1 nhi\u00ean: Qu\u1ea3n l\u00fd n\u1ed3ng \u0111\u1ed9 trong c\u00e1c thi\u1ebft b\u1ecb t\u00e1ch v\u00e0 gia nhi\u1ec7t \u00e1p su\u1ea5t cao.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,1,0\">N\u00e9n kh\u00ed: Gi\u00e1m s\u00e1t c\u00e1c thi\u1ebft b\u1ecb l\u1ecdc kh\u00ed \u0111\u1ec3 ng\u0103n ch\u1ea5t l\u1ecfng l\u1eabn v\u00e0o m\u00e1y n\u00e9n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,2,0\">Nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn: Ki\u1ec3m so\u00e1t giao di\u1ec7n l\u1ecfng-l\u1ecfng trong b\u1ec3 t\u00e1ch d\u1ea7u.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,3,0\">\u0110\u01b0\u1eddng \u1ed1ng d\u1eabn t\u1eeb xa: V\u1eadn h\u00e0nh \u0111\u00e1ng tin c\u1eady t\u1ea1i c\u00e1c tr\u1ea1m kh\u00f4ng ng\u01b0\u1eddi l\u00e1i s\u1eed d\u1ee5ng kh\u00ed c\u00f4ng nghi\u1ec7p l\u00e0m ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng.<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"12\" \/>\n<h3 data-path-to-node=\"13\">C\u00f4ng ty TNHH Th\u01b0\u01a1ng m\u1ea1i Xi&#039;an Yunrui - H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt<\/h3>\n<p data-path-to-node=\"14\">C\u00f4ng ty TNHH Th\u01b0\u01a1ng m\u1ea1i Xi&#039;an Yunrui l\u00e0 nh\u00e0 cung c\u1ea5p ch\u00ednh c\u00e1c s\u1ea3n ph\u1ea9m mang th\u01b0\u01a1ng hi\u1ec7u Fisher. Ch\u00fang t\u00f4i chuy\u00ean cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p t\u1ef1 \u0111\u1ed9ng h\u00f3a Emerson ch\u00ednh h\u00e3ng, hi\u1ec7u qu\u1ea3 cao cho kh\u00e1ch h\u00e0ng c\u00f4ng nghi\u1ec7p. B\u00ean c\u1ea1nh vi\u1ec7c cung c\u1ea5p c\u00e1c ph\u1ea7n c\u1ee9ng c\u1ed1t l\u00f5i nh\u01b0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n m\u1ee9c ch\u1ea5t l\u1ecfng L2 v\u00e0 L2sj, ch\u00fang t\u00f4i t\u1eadn d\u1ee5ng chuy\u00ean m\u00f4n k\u1ef9 thu\u1eadt s\u00e2u r\u1ed9ng \u0111\u1ec3 cung c\u1ea5p h\u1ed7 tr\u1ee3 chuy\u00ean nghi\u1ec7p v\u00e0 h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn m\u00f4 h\u00ecnh cho c\u00e1c d\u1ef1 \u00e1n mua s\u1eafm v\u00e0 k\u1ef9 thu\u1eadt. B\u1eb1ng c\u00e1ch t\u1ed1i \u01b0u h\u00f3a chu\u1ed7i cung \u1ee9ng, ch\u00fang t\u00f4i mang l\u1ea1i l\u1ee3i th\u1ebf c\u1ea1nh tranh v\u1ec1 gi\u00e1 c\u1ea3, \u0111\u1ea3m b\u1ea3o cung c\u1ea5p m\u1ee9c gi\u00e1 cao nh\u1ea5t \u0111\u1ed3ng th\u1eddi h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c n\u00e2ng c\u1ea5p k\u1ef9 thu\u1eadt s\u1ed1.<\/p>\n<p data-path-to-node=\"15\">N\u1ebfu b\u1ea1n \u0111ang ph\u00e2n v\u00e2n gi\u1eefa L2 (ti\u00eau chu\u1ea9n) v\u00e0 L2sj (c\u1ea3m bi\u1ebfn ng\u1eafn) cho \u1ee9ng d\u1ee5ng c\u00f3 kh\u00f4ng gian h\u1ea1n ch\u1ebf, ho\u1eb7c n\u1ebfu b\u1ea1n c\u1ea7n x\u00e1c nh\u1eadn kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a gio\u0103ng cho m\u1ed9t quy tr\u00ecnh kh\u00ed chua c\u1ee5 th\u1ec3, vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n chuy\u00ean m\u00f4n.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Fisher L2 and L2sj are the &#8220;workhorses&#8221; of the oil and gas industry, specifically engineered for the high-pressure, high-vibration environments found in natural gas production and processing. They utilize a displacer-type sensor that works on the principle of buoyancy\u2014sensing the change in weight of a submerged displacer to accurately detect either a single liquid level or the interface between two liquids (like oil and water).<\/p>","protected":false},"author":1,"featured_media":7555,"parent":0,"menu_order":33,"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 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":""},"tags":[336],"brands":[162,112],"model_series":[],"industries":[54,53,55,60],"product_cat":[122,258],"class_list":["post-7554","products","type-products","status-publish","format-standard","has-post-thumbnail","hentry","tag-fisher-supplier","brands-controllers-and-instruments","brands-fisher","industries-chemical-petrochemical","industries-oil-gas","industries-power-generation","industries-pulp-paper","product_cat-control-valves-actuators","product_cat-controllers-and-instruments"],"acf":{"area_classification":"Group II Category 2 Gas and Dust","certifications":"ATEX, PED, CUTR","communication_protocol":"","data_interface":"Wired","diagnostics":"No","input_signal":"","max_outlet_pressure":"35 psi \/ 50 psi","mounting_type":"Process Vessel Mounted","operating_temperature":"Standard Temperature","position_control":"On\/Off, Monitoring","process_control":"Level","power_source":"","supply_media":"Air, Natural Gas","other_configurations":"Please contact us for other specifications or options for this product.","datasheet":7556},"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>Fisher\u2122 L2 and L2sj Liquid Level Controllers | Fisher Supplier | Genuine Emerson<\/title>\n<meta name=\"description\" content=\"Fisher L2 and L2sj liquid level controllers - Displacer-operated design for oil &amp; gas and chemical industries. Genuine Emerson from authorized Fisher 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\/vi\/products\/fisher-l2-and-l2sj-liquid-level-controllers\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fisher L2 and L2sj Liquid Level Controllers\" \/>\n<meta property=\"og:description\" content=\"Fisher L2 and L2sj liquid level controllers - Displacer-operated design for oil &amp; gas and chemical industries. 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