{"id":7610,"date":"2026-04-06T16:55:11","date_gmt":"2026-04-06T16:55:11","guid":{"rendered":"https:\/\/www.yunrui-controls.com\/?post_type=products&#038;p=7610"},"modified":"2026-04-06T16:55:35","modified_gmt":"2026-04-06T16:55:35","slug":"fisher-646-electro-pneumatic-transducer","status":"publish","type":"products","link":"https:\/\/www.yunrui-controls.com\/vi\/products\/fisher-646-electro-pneumatic-transducer\/","title":{"rendered":"C\u1ea3m bi\u1ebfn \u0111i\u1ec7n kh\u00ed n\u00e9n Fisher 646 | Nh\u00e0 cung c\u1ea5p van Fisher | C\u00f3 \u0111\u1ea7y \u0111\u1ee7 c\u00e1c s\u1ea3n ph\u1ea9m van Fisher."},"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\">Ki\u1ebfn tr\u00fac ch\u1ed1ng rung: M\u00f4-\u0111un chuy\u1ec3n \u0111\u1ed5i b\u00ean trong s\u1eed d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng th\u1ea5p \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng \u0111\u1ed1i x\u1ee9ng xung quanh m\u1ed9t \u0111i\u1ec3m tr\u1ee5c trung t\u00e2m. Thi\u1ebft k\u1ebf kh\u1ed1i l\u01b0\u1ee3ng c\u00e2n b\u1eb1ng n\u00e0y cho ph\u00e9p 646 duy tr\u00ec \u0111\u1ed9 l\u1ec7ch \u0111\u1ea7u ra nh\u1ecf h\u01a1n 1% ngay c\u1ea3 khi ch\u1ecbu rung \u0111\u1ed9ng c\u01a1 h\u1ecdc \u0111\u00e1ng k\u1ec3 (SAMA PMC 31.1, \u0110i\u1ec1u ki\u1ec7n 3).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,1,0\">L\u01b0u l\u01b0\u1ee3ng \u0111\u1ea7u ra cao: Kh\u00f4ng gi\u1ed1ng nh\u01b0 nhi\u1ec1u b\u1ed9 chuy\u1ec3n \u0111\u1ed5i nh\u1ecf kh\u00e1c c\u1ea7n b\u1ed9 t\u0103ng l\u01b0u l\u01b0\u1ee3ng ho\u1eb7c b\u1ed9 \u0111\u1ecbnh v\u1ecb th\u1ee9 c\u1ea5p \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n van, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i 646 cung c\u1ea5p l\u01b0u l\u01b0\u1ee3ng \u0111\u1ea7u ra \u0111\u1ee7 l\u1edbn \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n tr\u1ef1c ti\u1ebfp h\u1ea7u h\u1ebft c\u00e1c t\u1ed5 h\u1ee3p van\/b\u1ed9 truy\u1ec1n \u0111\u1ed9ng ti\u00eau chu\u1ea9n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,2,0\">Nh\u1ecf g\u1ecdn v\u00e0 nh\u1eb9: K\u00edch th\u01b0\u1edbc nh\u1ecf gi\u00fap d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t trong kh\u00f4ng gian ch\u1eadt h\u1eb9p ho\u1eb7c tr\u1ef1c ti\u1ebfp tr\u00ean b\u1ed9 truy\u1ec1n \u0111\u1ed9ng, c\u1ea3i thi\u1ec7n vi\u1ec7c s\u1eed d\u1ee5ng kh\u00f4ng gian t\u1ed5ng th\u1ec3 tr\u00ean c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng ph\u1ee9c t\u1ea1p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,3,0\">Thi\u1ebft k\u1ebf d\u1ea1ng m\u00f4-\u0111un c\u00f3 th\u1ec3 thay th\u1ebf t\u1ea1i ch\u1ed7: B\u1ed9 chuy\u1ec3n \u0111\u1ed5i b\u00ean trong l\u00e0 m\u1ed9t m\u00f4-\u0111un \u0111\u1ed9c l\u1eadp. N\u1ebfu thi\u1ebft b\u1ecb b\u1ecb h\u1ecfng ho\u1eb7c b\u1ecb t\u1eafc ngh\u1ebdn, m\u00f4-\u0111un c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf t\u1ea1i ch\u1ed7 m\u00e0 kh\u00f4ng c\u1ea7n th\u00e1o to\u00e0n b\u1ed9 v\u1ecf \u0111\u1ea7u d\u00f2 ra kh\u1ecfi d\u00e2y chuy\u1ec1n, gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,4,0\">Hi\u1ec7u qu\u1ea3 v\u1eadn h\u00e0nh: M\u00e1y 646 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ti\u00eau th\u1ee5 kh\u00ed n\u00e9n \u1edf tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh th\u1ea5p, \u0111i\u1ec1u n\u00e0y tr\u1ef1c ti\u1ebfp gi\u00fap gi\u1ea3m chi ph\u00ed s\u1eed d\u1ee5ng kh\u00ed n\u00e9n cho thi\u1ebft b\u1ecb trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a m\u00e1y.<\/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\">T\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o<\/span><\/td>\n<td><span data-path-to-node=\"7,1,1,0\">D\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u 4 \u0111\u1ebfn 20 mA<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,2,0,0\">T\u00edn hi\u1ec7u \u0111\u1ea7u ra<\/span><\/td>\n<td><span data-path-to-node=\"7,2,1,0\">0,2 \u0111\u1ebfn 1,0 bar (3 \u0111\u1ebfn 15 psig)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,3,0,0\">S\u1ef1 ch\u00ednh x\u00e1c<\/span><\/td>\n<td><span data-path-to-node=\"7,3,1,0\">Sai s\u1ed1 +\/- 0,5% c\u1ee7a d\u1ea3i \u0111\u1ea7u ra<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,4,0,0\">Hi\u1ec7n t\u01b0\u1ee3ng tr\u1ec5<\/span><\/td>\n<td><span data-path-to-node=\"7,4,1,0\">Kho\u1ea3ng c\u00f4ng su\u1ea5t \u0111\u1ea7u ra nh\u1ecf h\u01a1n 0,3%<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,5,0,0\">L\u01b0u l\u01b0\u1ee3ng t\u1ed1i \u0111a<\/span><\/td>\n<td><span data-path-to-node=\"7,5,1,0\">8,0 m3\/h (300 scfh) \u1edf \u00e1p su\u1ea5t cung c\u1ea5p 1,4 bar (20 psig)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,6,0,0\">Gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9<\/span><\/td>\n<td><span data-path-to-node=\"7,6,1,0\">-40 \u0111\u1ebfn 71\u00b0C (-40 \u0111\u1ebfn 160\u00b0F)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"7,7,0,0\">V\u1eadt li\u1ec7u x\u00e2y nh\u00e0<\/span><\/td>\n<td><span data-path-to-node=\"7,7,1,0\">H\u1ee3p kim nh\u00f4m h\u00e0m l\u01b0\u1ee3ng \u0111\u1ed3ng th\u1ea5p (l\u1edbp ph\u1ee7 Cromat\/Polyurethane)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr data-path-to-node=\"8\" \/>\n<h4 data-path-to-node=\"9\">\u1ee8ng d\u1ee5ng v\u00e0 c\u00e1c l\u0129nh v\u1ef1c c\u00f4ng nghi\u1ec7p<\/h4>\n<p data-path-to-node=\"10\">B\u1ed9 \u0111i\u1ec1u khi\u1ec3n 646 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 nh\u1ea5t trong c\u00e1c m\u1ea1ch c\u1ea7n giao di\u1ec7n \u0111\u01a1n gi\u1ea3n, \u0111\u00e1ng tin c\u1eady v\u00e0 ch\u1ed1ng rung gi\u1eefa h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n ph\u00e2n t\u00e1n (DCS) v\u00e0 van \u0111i\u1ec1u khi\u1ec3n kh\u00ed n\u00e9n.<\/p>\n<ul data-path-to-node=\"11\">\n<li>\n<p data-path-to-node=\"11,0,0\">Ng\u00e0nh h\u00f3a d\u1ea7u v\u00e0 l\u1ecdc d\u1ea7u: V\u1eadn h\u00e0nh c\u00e1c van \u0111i\u1ec1u khi\u1ec3n c\u1ee1 nh\u1ecf \u0111\u1ebfn trung b\u00ecnh trong c\u00e1c khu v\u1ef1c ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a rung \u0111\u1ed9ng t\u1eeb b\u01a1m ho\u1eb7c m\u00e1y n\u00e9n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,1,0\">Ph\u00e1t \u0111i\u1ec7n: \u0110i\u1ec1u khi\u1ec3n ch\u00ednh x\u00e1c c\u00e1c v\u00f2ng tu\u1ea7n ho\u00e0n h\u01a1i n\u01b0\u1edbc ph\u1ee5 tr\u1ee3 v\u00e0 n\u01b0\u1edbc l\u00e0m m\u00e1t.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,2,0\">Ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y v\u00e0 b\u1ed9t gi\u1ea5y: Qu\u1ea3n l\u00fd l\u01b0u l\u01b0\u1ee3ng v\u00e0 \u00e1p su\u1ea5t trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng gi\u1eb7t v\u00e0 t\u1ea9y tr\u1eafng t\u1ea1i nh\u00e0 m\u00e1y.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,3,0\">S\u1ea3n xu\u1ea5t chung: B\u1ea5t c\u1ee9 n\u01a1i n\u00e0o c\u1ea7n giao di\u1ec7n I\/P m\u1ea1nh m\u1ebd, \u00edt c\u1ea7n b\u1ea3o tr\u00ec cho h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a kh\u00ed n\u00e9n.<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"12\" \/>\n<h5 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<\/h5>\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 van Fisher, cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 c\u00e1c gi\u1ea3i ph\u00e1p 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 su\u1ea5t 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 chuy\u1ec3n \u0111\u1ed5i 646, 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 thay th\u1ebf m\u1ed9t thi\u1ebft b\u1ecb I\/P c\u0169 v\u00e0 c\u1ea7n x\u00e1c minh ki\u1ec3u b\u1ed1 tr\u00ed bu l\u00f4ng ho\u1eb7c kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch k\u1ebft n\u1ed1i kh\u00ed n\u00e9n v\u1edbi gi\u00e1 \u0111\u1ee1 hi\u1ec7n t\u1ea1i, vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i.<\/p>","protected":false},"excerpt":{"rendered":"<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u0111i\u1ec7n-kh\u00ed n\u00e9n (I\/P) hi\u1ec7u su\u1ea5t cao Fisher 646 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 k\u1ebft n\u1ed1i gi\u1eefa h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec7n t\u1eed v\u00e0 b\u1ed9 truy\u1ec1n \u0111\u1ed9ng kh\u00ed n\u00e9n. N\u00f3 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o DC ti\u00eau chu\u1ea9n t\u1eeb 4 \u0111\u1ebfn 20 mA th\u00e0nh t\u00edn hi\u1ec7u kh\u00ed n\u00e9n t\u1ef7 l\u1ec7 thu\u1eadn t\u1eeb 0,2 \u0111\u1ebfn 1,0 bar (3 \u0111\u1ebfn 15 psig), \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p c\u00f3 \u0111\u1ed9 rung cao.<\/p>","protected":false},"author":1,"featured_media":7611,"parent":0,"menu_order":22,"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":[381],"brands":[162,112],"model_series":[],"industries":[54,53,55,59],"product_cat":[122,258],"class_list":["post-7610","products","type-products","status-publish","format-standard","has-post-thumbnail","hentry","tag-fisher-valves-supplier","brands-controllers-and-instruments","brands-fisher","industries-chemical-petrochemical","industries-oil-gas","industries-power-generation","industries-water-wastewater","product_cat-control-valves-actuators","product_cat-controllers-and-instruments"],"acf":{"area_classification":"Explosion Proof, Intrinsically Safe, Non-incendive, General Purpose, Flame Proof","certifications":"CSA, FM, ATEX, IECEx, CUTR, Regional","communication_protocol":"4-20mA Analog","data_interface":"Wired","diagnostics":"No\r\n","input_signal":"Electric","max_outlet_pressure":"20 psig","mounting_type":"Remote Mount, Actuator Mount","operating_temperature":"Standard Temperature","position_control":"Modulating Control","process_control":"","power_source":"Local","supply_media":"Air","other_configurations":"Please contact us for other specifications or options for this product.","datasheet":7612},"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 646 Electro-Pneumatic Transducer | Fisher Valves supplier<\/title>\n<meta name=\"description\" content=\"Fisher 646 electro-pneumatic transducer from Yunrui Fisher Valves supplier - 100% genuine Emerson, competitive price. Converts 4-20mA signal to 3-15 psi pneumatic output.\" \/>\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-646-electro-pneumatic-transducer\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fisher 646 Electro-Pneumatic Transducer\uff5cFisher Valves supplier\uff5cFisher Valves full product range available\" \/>\n<meta property=\"og:description\" content=\"Fisher 646 electro-pneumatic transducer from Yunrui Fisher Valves supplier - 100% genuine Emerson, competitive price. 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