{"id":6002,"date":"2026-09-21T19:05:59","date_gmt":"2026-09-21T11:05:59","guid":{"rendered":"https:\/\/www.sj-gauge.com\/?p=6002"},"modified":"2026-09-21T19:06:00","modified_gmt":"2026-09-21T11:06:00","slug":"pressure-gauge-condensation-fogging","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-condensation-fogging\/","title":{"rendered":"Kim \u0111\u1ed3ng h\u1ed3 \u00e1p su\u1ea5t b\u1ecb m\u1edd? \u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ch\u1ee9a ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 gi\u00fap \u00edch kh\u00f4ng?"},"content":{"rendered":"<p>Khi \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t b\u1ecb m\u1edd, tr\u01b0\u1edbc ti\u00ean h\u00e3y x\u00e1c \u0111\u1ecbnh xem h\u01a1i \u1ea9m \u0111\u1ebfn t\u1eeb b\u00ean ngo\u00e0i hay b\u00ean trong c\u1eeda s\u1ed5. Th\u00f4ng th\u01b0\u1eddng, c\u00f3 th\u1ec3 ki\u1ec3m tra hi\u1ec7n t\u01b0\u1ee3ng ng\u01b0ng t\u1ee5 b\u00ean ngo\u00e0i b\u1eb1ng c\u00e1ch lau b\u1ec1 m\u1eb7t. N\u1ebfu v\u1eabn c\u00f2n gi\u1ecdt n\u01b0\u1edbc ho\u1eb7c s\u01b0\u01a1ng m\u00f9 b\u00ean trong, h\u00e3y ki\u1ec3m tra h\u01a1i \u1ea9m trong v\u1ecf, t\u00ecnh tr\u1ea1ng gio\u0103ng v\u00e0 s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9. N\u1ebfu ch\u1ec9 s\u1ed1 b\u1ecb che khu\u1ea5t, \u0111\u1eebng cho r\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1eabn ho\u1ea1t \u0111\u1ed9ng t\u1ed1t ch\u1ec9 v\u00ec s\u01b0\u01a1ng m\u00f9 sau \u0111\u00f3 bi\u1ebfn m\u1ea5t.<\/p>\n\n\n\n<p>M\u1ed9t \u0111\u1ed3ng h\u1ed3 \u0111o \u0111\u01b0\u1ee3c b\u1ecbt k\u00edn v\u00e0 ch\u1ee9a \u0111\u1ea7y ch\u1ea5t l\u1ecfng ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a s\u1ef1 ng\u01b0ng t\u1ee5 b\u00ean trong v\u1ecf v\u00e0 l\u00e0m gi\u1ea3m s\u1ef1 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a kim ch\u1ec9 th\u1ecb do rung \u0111\u1ed9ng g\u00e2y ra. Vi\u1ec7c ch\u1ee9a ch\u1ea5t l\u1ecfng kh\u00f4ng l\u00e0m cho \u0111\u1ed3ng h\u1ed3 \u0111o ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc ho\u00e0n to\u00e0n: kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 c\u1ee7a v\u1ecf, gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 v\u00e0 y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t v\u1eabn ph\u1ee5 thu\u1ed9c v\u00e0o t\u1eebng lo\u1ea1i thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\" style=\"width:640px;max-width:100%;margin:32px auto\"><img fetchpriority=\"high\" decoding=\"async\" width=\"2560\" height=\"1443\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauges-pipework-field-scaled.jpg\" alt=\"Two pressure gauges installed on a panel with valves and industrial pipework\" class=\"wp-image-6000\" sizes=\"(max-width: 640px) 100vw, 640px\" loading=\"eager\" style=\"display:block;width:100%;height:auto;aspect-ratio:3\/2;object-fit:cover;object-position:58% center\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauges-pipework-field-scaled.jpg 2560w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauges-pipework-field-300x169.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauges-pipework-field-1024x577.jpg 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauges-pipework-field-768x433.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauges-pipework-field-1536x866.jpg 1536w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauges-pipework-field-2048x1154.jpg 2048w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauges-pipework-field-18x10.jpg 18w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauges-pipework-field-600x338.jpg 600w\" \/><figcaption class=\"wp-element-caption\" style=\"text-align:center\">H\u00ecnh 1 | M\u1ed9t h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t th\u1ef1c t\u1ebf. \u0110\u00e1nh gi\u00e1 \u0111\u1ed3ng h\u1ed3 \u0111o c\u00f9ng v\u1edbi \u0111\u01b0\u1eddng \u1ed1ng g\u1ea7n \u0111\u00f3, s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 \u0111i\u1ec1u ki\u1ec7n v\u1ec7 sinh; h\u00ecnh \u1ea3nh kh\u00f4ng cho th\u1ea5y l\u1ed7i ng\u01b0ng t\u1ee5.<\/figcaption><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"B\u1eadt\/t\u1eaft M\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">B\u1eadt\/T\u1eaft<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #7b1e1c;color:#7b1e1c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #7b1e1c;color:#7b1e1c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-condensation-fogging\/#why-does-a-pressure-gauge-fog-up\" >T\u1ea1i sao \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t l\u1ea1i b\u1ecb m\u1edd?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-condensation-fogging\/#distinguish-external-moisture-internal-condensation-and-fill-fluid-problems\" >Ph\u00e2n bi\u1ec7t c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ed9 \u1ea9m b\u00ean ngo\u00e0i, ng\u01b0ng t\u1ee5 b\u00ean trong v\u00e0 ch\u1ea5t l\u1ecfng n\u1ea1p.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-condensation-fogging\/#how-does-liquid-filling-help-with-moisture\" >Vi\u1ec7c s\u1eed d\u1ee5ng ch\u1ea5t l\u1ecfng \u0111\u1ec3 l\u00e0m \u0111\u1ea7y gi\u00fap ki\u1ec3m so\u00e1t \u0111\u1ed9 \u1ea9m nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-condensation-fogging\/#can-a-fogged-gauge-stay-in-service\" >Li\u1ec7u \u0111\u1ed3ng h\u1ed3 \u0111o b\u1ecb m\u1edd s\u01b0\u01a1ng c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-condensation-fogging\/#international-standards-references\" >T\u00e0i li\u1ec7u tham kh\u1ea3o ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-condensation-fogging\/#frequently-asked-questions\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-condensation-fogging\/#conclusion\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"why-gauges-fog\"><span class=\"ez-toc-section\" id=\"why-does-a-pressure-gauge-fog-up\"><\/span>T\u1ea1i sao \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t l\u1ea1i b\u1ecb m\u1edd?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>S\u01b0\u01a1ng m\u00f9 ho\u1eb7c gi\u1ecdt n\u01b0\u1edbc c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh khi c\u00f3 h\u01a1i \u1ea9m b\u00ean trong v\u1ecf m\u00e1y v\u00e0 c\u1eeda s\u1ed5 tr\u1edf n\u00ean \u0111\u1ee7 l\u1ea1nh \u0111\u1ec3 ng\u01b0ng t\u1ee5. S\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 t\u1eeb ng\u00e0y sang \u0111\u00eam, kh\u00f4ng kh\u00ed \u1ea9m xung quanh \u0111\u01b0\u1eddng \u1ed1ng l\u1ea1nh v\u00e0 s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 trong qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng ho\u1eb7c t\u1eaft m\u00e1y l\u00e0 nh\u1eefng \u0111i\u1ec1u ki\u1ec7n h\u1eefu \u00edch c\u1ea7n ghi l\u1ea1i.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u1ecb tr\u00ed ngo\u00e0i tr\u1eddi ho\u1eb7c n\u01a1i \u1ea9m \u01b0\u1edbt khi\u1ebfn thi\u1ebft b\u1ecb d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi m\u01b0a, kh\u00f4ng kh\u00ed \u1ea9m ho\u1eb7c s\u01b0\u01a1ng.<\/li>\n\n\n\n<li>C\u1eeda s\u1ed5, n\u00fat b\u1ecbt ho\u1eb7c gio\u0103ng b\u1ecb c\u0169, l\u1ecfng l\u1ebbo ho\u1eb7c h\u01b0 h\u1ecfng c\u00f3 th\u1ec3 cho ph\u00e9p h\u01a1i \u1ea9m x\u00e2m nh\u1eadp.<\/li>\n\n\n\n<li>C\u00e1c tia n\u01b0\u1edbc phun tr\u1ef1c ti\u1ebfp c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n\n\n\n<li>Sau khi l\u1eafp r\u00e1p ho\u1eb7c b\u1ea3o d\u01b0\u1ee1ng, h\u01a1i \u1ea9m c\u00f3 th\u1ec3 v\u1eabn c\u00f2n s\u00f3t l\u1ea1i, ho\u1eb7c l\u1edbp ni\u00eam phong ban \u0111\u1ea7u c\u00f3 th\u1ec3 ch\u01b0a \u0111\u01b0\u1ee3c ph\u1ee5c h\u1ed3i ho\u00e0n to\u00e0n.<\/li>\n<\/ul>\n\n\n\n<p>Hi\u1ec7n t\u01b0\u1ee3ng m\u1edd \u0111\u1ee5c b\u00ean trong cho th\u1ea5y c\u00f3 h\u01a1i \u1ea9m b\u00ean trong v\u1ecf m\u00e1y; n\u00f3 kh\u00f4ng t\u1ef1 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed gio\u0103ng b\u1ecb h\u1ecfng c\u1ee5 th\u1ec3. H\u00e3y ghi l\u1ea1i th\u1eddi \u0111i\u1ec3m x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y, \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft, ho\u1ea1t \u0111\u1ed9ng v\u1ec7 sinh v\u00e0 t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh ki\u1ec3m tra.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"identify-moisture\"><span class=\"ez-toc-section\" id=\"distinguish-external-moisture-internal-condensation-and-fill-fluid-problems\"><\/span>Ph\u00e2n bi\u1ec7t c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ed9 \u1ea9m b\u00ean ngo\u00e0i, ng\u01b0ng t\u1ee5 b\u00ean trong v\u00e0 ch\u1ea5t l\u1ecfng n\u1ea1p.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u1ede n\u01a1i an to\u00e0n \u0111\u1ec3 ti\u1ebfp c\u1eadn thi\u1ebft b\u1ecb, h\u00e3y lau b\u00ean ngo\u00e0i c\u1eeda s\u1ed5 b\u1eb1ng m\u1ed9t mi\u1ebfng v\u1ea3i m\u1ec1m, kh\u00f4. N\u1ebfu vi\u1ec7c n\u00e0y gi\u00fap kh\u00f4i ph\u1ee5c t\u1ea7m nh\u00ecn v\u00e0 kh\u00f4ng c\u00f2n gi\u1ecdt n\u01b0\u1edbc n\u00e0o b\u00ean trong, h\u00e3y ki\u1ec3m tra xem c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng ng\u01b0ng t\u1ee5 b\u00ean ngo\u00e0i hay kh\u00f4ng. S\u01b0\u01a1ng m\u00f9 dai d\u1eb3ng, gi\u1ecdt n\u01b0\u1edbc ho\u1eb7c ch\u1ea5t l\u1ecfng \u0111\u1ecdng l\u1ea1i c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra k\u1ef9 h\u01a1n. C\u0169ng c\u1ea7n lo\u1ea1i tr\u1eeb c\u00e1c v\u1ebft x\u01b0\u1edbc, b\u1ee5i b\u1ea9n v\u00e0 ph\u1ea3n chi\u1ebfu thay v\u00ec coi m\u1ecdi hi\u1ec7n t\u01b0\u1ee3ng m\u1edd \u0111\u1ee5c l\u00e0 do ng\u01b0ng t\u1ee5.<\/p>\n\n\n\n<p>\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ch\u1ee9a ch\u1ea5t l\u1ecfng \u0111\u00e3 c\u00f3 s\u1eb5n ch\u1ea5t l\u1ecfng d\u00f9ng \u0111\u1ec3 \u0111\u1ed5 \u0111\u1ea7y v\u1ecf. M\u1ee9c ch\u1ea5t l\u1ecfng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c ho\u1eb7c kho\u1ea3ng kh\u00f4ng kh\u00ed kh\u00f4ng t\u1ef1 n\u00f3 cho th\u1ea5y c\u00f3 n\u01b0\u1edbc x\u00e2m nh\u1eadp. Ng\u01b0\u1ee3c l\u1ea1i, ch\u1ea5t l\u1ecfng b\u1ecb \u0111\u1ee5c ho\u1eb7c nh\u0169 h\u00f3a, m\u1ea5t ch\u1ea5t l\u1ecfng \u0111\u00e1ng k\u1ec3 ho\u1eb7c r\u00f2 r\u1ec9 li\u00ean t\u1ee5c kh\u00f4ng n\u00ean b\u1ecb coi l\u00e0 b\u1ecdt kh\u00ed th\u00f4ng th\u01b0\u1eddng. H\u00e3y so s\u00e1nh t\u00ecnh tr\u1ea1ng v\u1edbi m\u1ee9c ch\u1ea5t l\u1ecfng ban \u0111\u1ea7u, y\u00eau c\u1ea7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 c\u00e1c b\u1ee9c \u1ea3nh tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\" style=\"width:640px;max-width:100%;margin:32px auto\"><img loading=\"lazy\" decoding=\"async\" width=\"1108\" height=\"1477\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-liquid-filled-gauge-level-inspection.jpg\" alt=\"Installed SJ pressure gauge with a visible case-fill liquid level and process connection\" class=\"wp-image-6001\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" style=\"display:block;width:100%;height:auto;aspect-ratio:3\/2;object-fit:cover;object-position:center 91%\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-liquid-filled-gauge-level-inspection.jpg 1108w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-liquid-filled-gauge-level-inspection-225x300.jpg 225w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-liquid-filled-gauge-level-inspection-768x1024.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-liquid-filled-gauge-level-inspection-9x12.jpg 9w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-liquid-filled-gauge-level-inspection-300x400.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-liquid-filled-gauge-level-inspection-600x800.jpg 600w\" \/><figcaption class=\"wp-element-caption\" style=\"text-align:center\">H\u00ecnh 2 | M\u1ee9c ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y qua c\u1eeda s\u1ed5. H\u00e3y ki\u1ec3m tra l\u1ea1i so v\u1edbi m\u1ee9c \u0111\u1ed5 \u0111\u1ea7y ban \u0111\u1ea7u v\u00e0 y\u00eau c\u1ea7u c\u1ee7a ki\u1ec3u m\u00e1y; h\u00ecnh \u1ea3nh n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 v\u00ed d\u1ee5 v\u1ec1 m\u1ee9c \u0111\u1ed5 \u0111\u1ea7y b\u00ecnh th\u01b0\u1eddng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"liquid-fill-protection\"><span class=\"ez-toc-section\" id=\"how-does-liquid-filling-help-with-moisture\"><\/span>Vi\u1ec7c s\u1eed d\u1ee5ng ch\u1ea5t l\u1ecfng \u0111\u1ec3 l\u00e0m \u0111\u1ea7y gi\u00fap ki\u1ec3m so\u00e1t \u0111\u1ed9 \u1ea9m nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ch\u1ee9a ch\u1ea5t l\u1ecfng s\u1eed d\u1ee5ng glycerin, d\u1ea7u silicon ho\u1eb7c m\u1ed9t ch\u1ea5t l\u1ecfng \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh kh\u00e1c \u0111\u1ec3 chi\u1ebfm ph\u1ea7n l\u1edbn th\u1ec3 t\u00edch v\u1ecf. V\u1edbi l\u1edbp ni\u00eam phong ph\u00f9 h\u1ee3p, \u0111i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m kh\u00f4ng gian ch\u1ee9a kh\u00f4ng kh\u00ed \u1ea9m v\u00e0 gi\u00fap h\u1ea1n ch\u1ebf s\u1ef1 ng\u01b0ng t\u1ee5 b\u00ean trong. Ch\u1ea5t l\u1ecfng c\u0169ng l\u00e0m gi\u1ea3m rung \u0111\u1ed9ng c\u01a1 h\u1ecdc \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng \u0111\u1ecdc kim ch\u1ec9 th\u1ecb. \u1ede \u0111\u00e2y, vi\u1ec7c ch\u1ee9a ch\u1ea5t l\u1ecfng c\u00f3 ngh\u0129a l\u00e0 \u0111\u1ed5 \u0111\u1ea7y v\u1ecf, ph\u1ee5c v\u1ee5 m\u1ee5c \u0111\u00edch kh\u00e1c v\u1edbi ch\u1ea5t l\u1ecfng truy\u1ec1n \u00e1p su\u1ea5t trong h\u1ec7 th\u1ed1ng m\u00e0ng ng\u0103n k\u00edn.<\/p>\n\n\n\n<p>H\u00e3y l\u1ef1a ch\u1ecdn dung d\u1ecbch ch\u00e2m \u0111\u1ea7y ph\u00f9 h\u1ee3p v\u1edbi c\u1ea3 y\u00eau c\u1ea7u v\u1ec1 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh. \u0110\u1ed9 nh\u1edbt t\u0103ng l\u00ean \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p v\u00e0 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 nh\u1ea1y c\u1ee7a kim ch\u1ec9 th\u1ecb. Ch\u1ec9 ri\u00eang t\u00ean g\u1ecdi \u201cglycerin\u201d v\u00e0 \u201cd\u1ea7u silicon\u201d kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh gi\u1edbi h\u1ea1n ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb, v\u00e0 kh\u00f4ng n\u00ean thay \u0111\u1ed5i dung d\u1ecbch ch\u00e2m \u0111\u1ea7y n\u1ebfu kh\u00f4ng c\u00f3 h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5, <a href=\"https:\/\/www.sj-gauge.com\/vi\/product\/prs\/\">\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t v\u1ecf th\u00e9p kh\u00f4ng g\u1ec9 PRS<\/a> Cung c\u1ea5p c\u00e1c t\u00f9y ch\u1ecdn d\u1ea1ng kh\u00f4, ch\u1ee9a glycerin v\u00e0 ch\u1ee9a silicone cho m\u00e1y b\u01a1m, m\u00e1y n\u00e9n v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng n\u00f3i chung. \u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac v\u1edbi ch\u1ea5t l\u1ecfng b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9, th\u00ec... <a href=\"https:\/\/www.sj-gauge.com\/vi\/product\/prss\/\">\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t PRSS v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac v\u1edbi ch\u1ea5t l\u1ecfng b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 316L.<\/a> M\u1ed9t l\u1ef1a ch\u1ecdn kh\u00e1c c\u1ea7n xem x\u00e9t l\u00e0 ki\u1ec3m tra kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a ph\u01b0\u01a1ng ti\u1ec7n l\u01b0u tr\u1eef, nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1c y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o v\u1eadt li\u1ec7u v\u1ecf ho\u1eb7c s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ch\u1ea5t l\u1ecfng b\u00ean trong.<\/p>\n\n\n\n<p>Vi\u1ec7c \u0111\u1ed5 \u0111\u1ea7y ch\u1ea5t l\u1ecfng kh\u00f4ng cho ph\u00e9p s\u1eed d\u1ee5ng li\u00ean t\u1ee5c ho\u1eb7c r\u1eeda b\u1eb1ng n\u01b0\u1edbc \u1edf \u00e1p su\u1ea5t cao, nhi\u1ec7t \u0111\u1ed9 cao. N\u1ebfu c\u00f3 ch\u1ec9 \u0111\u1ecbnh x\u1ebfp h\u1ea1ng IP, h\u00e3y ki\u1ec3m tra \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m v\u00e0 y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t; kh\u1ea3 n\u0103ng ch\u1ed1ng x\u00e2m nh\u1eadp v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ng\u01b0ng t\u1ee5 b\u00ean trong l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 kh\u00e1c nhau c\u1ea7n xem x\u00e9t. H\u00e3y l\u00e0m theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ed1i v\u1edbi c\u00e1c n\u00fat b\u1ecbt v\u00e0 c\u00e1c t\u00ednh n\u0103ng b\u00f9 \u00e1p, kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ef1 \u00fd b\u1ecbt k\u00edn ho\u1eb7c c\u1eaft ch\u00fang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"when-to-inspect\"><span class=\"ez-toc-section\" id=\"can-a-fogged-gauge-stay-in-service\"><\/span>Li\u1ec7u \u0111\u1ed3ng h\u1ed3 \u0111o b\u1ecb m\u1edd s\u01b0\u01a1ng c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi hi\u1ec7n t\u01b0\u1ee3ng ng\u01b0ng t\u1ee5 h\u01a1i n\u01b0\u1edbc b\u00ean ngo\u00e0i c\u00f3 th\u1ec3 lau s\u1ea1ch, h\u00e3y ki\u1ec3m tra m\u1ee9c \u0111\u1ed9 ti\u1ebfp x\u00fac v\u1edbi m\u01b0a, th\u00f4ng gi\u00f3 v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p v\u1ec7 sinh, sau \u0111\u00f3 theo d\u00f5i xem hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y c\u00f3 t\u00e1i di\u1ec5n hay kh\u00f4ng. Hi\u1ec7n t\u01b0\u1ee3ng m\u1edd s\u01b0\u01a1ng b\u00ean trong l\u1eb7p \u0111i l\u1eb7p l\u1ea1i c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra. M\u1ed9t k\u1ebft qu\u1ea3 \u0111o c\u00f3 v\u1ebb b\u00ecnh th\u01b0\u1eddng kh\u00f4ng ch\u1ee9ng minh r\u1eb1ng hi\u1ec7u su\u1ea5t \u0111o v\u00e0 \u0111i\u1ec1u ki\u1ec7n an to\u00e0n v\u1eabn c\u00f2n nguy\u00ean v\u1eb9n.<\/p>\n\n\n\n<p>N\u1ebfu c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ecdng n\u01b0\u1edbc, \u0103n m\u00f2n, h\u01b0 h\u1ecfng c\u1eeda k\u00ednh, kim ch\u1ec9 th\u1ecb b\u1ecb k\u1eb9t, v\u1ea1ch s\u1ed1 0 b\u1ea5t th\u01b0\u1eddng ho\u1eb7c ch\u1ec9 b\u00e1o kh\u00f4ng \u0111\u1ecdc \u0111\u01b0\u1ee3c, h\u00e3y ng\u1eebng s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111\u1ec3 ki\u1ec3m tra ho\u1eb7c thay th\u1ebf theo quy tr\u00ecnh t\u1ea1i ch\u1ed7. Tr\u01b0\u1edbc khi th\u00e1o g\u1ee1, nh\u00e2n vi\u00ean c\u00f3 chuy\u00ean m\u00f4n ph\u1ea3i c\u00e1ch ly v\u00e0 x\u1ea3 \u00e1p su\u1ea5t \u0111\u01b0\u1eddng \u1ed1ng, \u0111\u1ed3ng th\u1eddi x\u00e1c nh\u1eadn r\u1eb1ng m\u00f4i ch\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 an to\u00e0n. Kh\u00f4ng \u0111\u01b0\u1ee3c th\u00e1o \u0111\u1ed3ng h\u1ed3 \u0111o \u0111ang ch\u1ecbu \u00e1p su\u1ea5t ho\u1eb7c s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p gia nhi\u1ec7t hay n\u1ea1p l\u1ea1i kh\u00f4ng \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t \u0111\u1ec3 che gi\u1ea5u s\u1ef1 c\u1ed1.<\/p>\n\n\n\n<p>Ki\u1ec3m tra \u0111\u1ed3ng th\u1eddi c\u1eeda s\u1ed5, n\u00fat b\u1ecbt, gio\u0103ng, dung d\u1ecbch ch\u00e2m v\u00e0 v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t. Vi\u1ec7c ch\u1ec9 thay th\u1ebf \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t c\u00f3 th\u1ec3 kh\u00f4ng ng\u0103n ng\u1eeba s\u1ef1 t\u00e1i ph\u00e1t n\u1ebfu v\u1ea5n \u0111\u1ec1 v\u1eabn c\u00f2n do ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc r\u1eeda, chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c v\u1ea5n \u0111\u1ec1 v\u1ec1 gio\u0103ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"standards\"><span class=\"ez-toc-section\" id=\"international-standards-references\"><\/span>T\u00e0i li\u1ec7u tham kh\u1ea3o ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/landingpage.bsigroup.com\/LandingPage\/Undated?UPI=000000000001250674\">Ti\u00eau chu\u1ea9n EN 837-1<\/a>: T\u00e0i li\u1ec7u tham kh\u1ea3o v\u1ec1 k\u00edch th\u01b0\u1edbc, ph\u01b0\u01a1ng ph\u00e1p \u0111o, y\u00eau c\u1ea7u v\u00e0 th\u1eed nghi\u1ec7m c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t \u1ed1ng Bourdon. Ki\u1ec3m tra t\u00ednh ph\u00f9 h\u1ee3p v\u1ec1 m\u00f4i tr\u01b0\u1eddng so v\u1edbi m\u00f4 h\u00ecnh c\u1ee5 th\u1ec3 v\u00e0 t\u00e0i li\u1ec7u th\u1eed nghi\u1ec7m c\u1ee7a n\u00f3.<\/li>\n\n\n\n<li><a href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/b40-100-pressure-gauges-gauge-attachments\">Ti\u00eau chu\u1ea9n ASME B40.100-2022<\/a>N\u1ed9i dung bao g\u1ed3m thu\u1eadt ng\u1eef, an to\u00e0n, c\u1ea5u t\u1ea1o, l\u1eafp \u0111\u1eb7t v\u00e0 ki\u1ec3m tra \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t v\u00e0 c\u00e1c ph\u1ee5 ki\u1ec7n k\u00e8m theo, cung c\u1ea5p b\u1ed1i c\u1ea3nh k\u1ef9 thu\u1eadt cho vi\u1ec7c l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng.<\/li>\n\n\n\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/2452\">IEC 60529<\/a>: t\u00e0i li\u1ec7u tham kh\u1ea3o v\u1ec1 ph\u00e2n lo\u1ea1i v\u00e0 ki\u1ec3m tra IP c\u1ee7a v\u1ecf thi\u1ebft b\u1ecb. Khi m\u1ed9t s\u1ea3n ph\u1ea9m c\u00f4ng b\u1ed1 x\u1ebfp h\u1ea1ng IP, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u00e0 t\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c n\u00eau r\u00f5; ch\u1ec9 ri\u00eang vi\u1ec7c \u0111\u1ed5 \u0111\u1ea7y ch\u1ea5t l\u1ecfng kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh x\u1ebfp h\u1ea1ng \u0111\u00f3.<\/li>\n<\/ul>\n\n\n\n<p>H\u00e3y x\u00e1c nh\u1eadn ph\u1ea1m vi v\u00e0 phi\u00ean b\u1ea3n \u00e1p d\u1ee5ng so v\u1edbi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt l\u1eafp \u0111\u1eb7t, quy tr\u00ecnh v\u00e0 mua h\u00e0ng. C\u00e1c ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c tr\u00edch d\u1eabn nh\u01b0 t\u00e0i li\u1ec7u tham kh\u1ea3o k\u1ef9 thu\u1eadt; \u0111i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ee9ng nh\u1eadn c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong \u1ea3nh ho\u1eb7c m\u1ecdi s\u1ea3n ph\u1ea9m c\u1ee7a SJ.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\"><span class=\"ez-toc-section\" id=\"frequently-asked-questions\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Kho\u1ea3ng kh\u00f4ng kh\u00ed nh\u1ecf b\u00ean trong \u0111\u1ed3ng h\u1ed3 \u0111o ch\u1ee9a ch\u1ea5t l\u1ecfng c\u00f3 ph\u1ea3i l\u00e0 \u0111i\u1ec1u b\u00ecnh th\u01b0\u1eddng kh\u00f4ng?<\/h3>\n\n\n\n<p>Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y c\u00f3 th\u1ec3 l\u00e0 b\u00ecnh th\u01b0\u1eddng. Ch\u1ea5t l\u1ecfng d\u00f9ng \u0111\u1ec3 ch\u00e2m th\u00eam s\u1ebd gi\u00e3n n\u1edf theo nhi\u1ec7t \u0111\u1ed9, v\u00ec v\u1eady nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i m\u1ed9t kho\u1ea3ng kh\u00f4ng kh\u00ed ho\u1eb7c cung c\u1ea5p t\u00ednh n\u0103ng b\u00f9 \u00e1p su\u1ea5t. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 m\u1ecdi k\u00edch th\u01b0\u1edbc kho\u1ea3ng kh\u00f4ng kh\u00ed \u0111\u1ec1u \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn. N\u1ebfu m\u1ef1c ch\u1ea5t l\u1ecfng gi\u1ea3m \u0111\u00e1ng k\u1ec3 so v\u1edbi m\u1ee9c ban \u0111\u1ea7u, c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 r\u1ec9 ho\u1eb7c ch\u1ea5t l\u1ecfng b\u1ecb \u0111\u1ee5c, c\u1ea7n ph\u1ea3i ki\u1ec3m tra. H\u00e3y l\u00e0m theo h\u01b0\u1edbng d\u1eabn c\u1ee7a t\u1eebng m\u1eabu s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3 \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 xem c\u00f3 c\u1ea7n ch\u00e2m th\u00eam ch\u1ea5t l\u1ecfng hay kh\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Li\u1ec7u m\u1ecdi \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ngo\u00e0i tr\u1eddi \u0111\u1ec1u c\u1ea7n ch\u1ea5t l\u1ecfng b\u00ean trong?<\/h3>\n\n\n\n<p>Kh\u00f4ng. C\u1ea7n \u0111\u00e1nh gi\u00e1 \u0111\u1ed3ng th\u1eddi c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 m\u01b0a, \u0111\u1ed9 \u1ea9m, s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9, \u0111i\u1ec1u ki\u1ec7n l\u1ea1nh v\u00e0 rung \u0111\u1ed9ng; vi\u1ec7c \u0111\u1ed5 \u0111\u1ea7y ch\u1ea5t l\u1ecfng l\u00e0 m\u1ed9t c\u1ea5u h\u00ecnh kh\u1ea3 thi. C\u1ea7n ki\u1ec3m tra th\u00eam v\u1ec1 kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 v\u1ecf thi\u1ebft b\u1ecb, gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 ch\u1ea5t l\u1ecfng, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi m\u00f4i ch\u1ea5t v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t. Vi\u1ec7c \u0111\u1eb7t ngo\u00e0i tr\u1eddi kh\u00f4ng l\u00e0m cho m\u1ecdi \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ch\u1ee9a ch\u1ea5t l\u1ecfng \u0111\u1ec1u ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\"><span class=\"ez-toc-section\" id=\"conclusion\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Tr\u01b0\u1edbc ti\u00ean, h\u00e3y x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed h\u01a1i \u1ea9m b\u00ean trong ho\u1eb7c b\u00ean ngo\u00e0i c\u1eeda s\u1ed5, sau \u0111\u00f3 ki\u1ec3m tra s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9, t\u00ecnh tr\u1ea1ng ni\u00eam phong v\u00e0 v\u1ec7 sinh. Ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u00e1c \u0111\u1ed9ng c\u1ee7a s\u1ef1 ng\u01b0ng t\u1ee5 v\u00e0 rung \u0111\u1ed9ng, nh\u01b0ng kh\u00f4ng th\u1ec3 thay th\u1ebf vi\u1ec7c b\u1ea3o v\u1ec7 v\u00e0 b\u1ea3o tr\u00ec v\u1ecf b\u1ecdc ph\u00f9 h\u1ee3p. N\u1ebfu ch\u1ec9 b\u00e1o b\u1ecb che khu\u1ea5t ho\u1eb7c c\u00f3 h\u01b0 h\u1ecfng r\u00f5 r\u00e0ng, c\u1ea7n ph\u1ea3i \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady c\u1ee7a ph\u00e9p \u0111o tr\u01b0\u1edbc khi ti\u1ebfp t\u1ee5c s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.sj-gauge.com\/vi\/contact\/\">Li\u00ean h\u1ec7 SJ Gauge<\/a> V\u1edbi h\u00ecnh \u1ea3nh l\u1eafp \u0111\u1eb7t, th\u00f4ng tin v\u1ec1 m\u00f4i ch\u1ea5t, \u00e1p su\u1ea5t ho\u1ea1t \u0111\u1ed9ng, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 nhi\u1ec7t \u0111\u1ed9 qu\u00e1 tr\u00ecnh, c\u0169ng nh\u01b0 b\u1ea5t k\u1ef3 \u0111i\u1ec1u ki\u1ec7n ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi ho\u1eb7c vi\u1ec7c r\u1eeda tr\u00f4i n\u00e0o, \u0111\u1ed9i ng\u0169 c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 gi\u00fap \u0111\u00e1nh gi\u00e1 c\u00e1c l\u1ef1a ch\u1ecdn ch\u1ea5t l\u1ecfng l\u00e0m \u0111\u1ea7y v\u00e0 bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p><strong>\u0110\u1ecdc th\u00eam:<\/strong> <a href=\"https:\/\/www.sj-gauge.com\/vi\/liquid-filled-gauge-troubleshooting\/\">Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ch\u1ee9a ch\u1ea5t l\u1ecfng<\/a>; <a href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-pointer-vibration\/\">T\u1ea1i sao kim ch\u1ec9 th\u1ecb \u00e1p su\u1ea5t c\u1ee7a t\u00f4i l\u1ea1i rung?<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>When a pressure gauge fogs up, first identify whether the moisture is outside or inside the window. External condensation can usually be checked by wiping the surface. If droplets or fog remain inside, investigate moisture in the case, seal condition and temperature changes. If the reading is obscured, do not assume the gauge is fit [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":6000,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[71],"class_list":["post-6002","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-pressure"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Pressure Gauge Fogging: Causes and Solutions | SJ Gauge<\/title>\n<meta name=\"description\" content=\"Check inside and outside condensation, seals and washdown exposure. Learn how liquid fill helps, how to assess the fill level and when to stop using a gauge.\" \/>\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.sj-gauge.com\/vi\/pressure-gauge-condensation-fogging\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pressure Gauge Fogging Up? Can Liquid-Filled Gauges Help?\" \/>\n<meta property=\"og:description\" content=\"Check inside and outside condensation, seals and washdown exposure. 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Can Liquid-Filled Gauges Help?\",\"datePublished\":\"2026-09-21T11:05:59+00:00\",\"dateModified\":\"2026-09-21T11:06:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/pressure-gauge-condensation-fogging\\\/\"},\"wordCount\":1126,\"publisher\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/pressure-gauge-condensation-fogging\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/sj-pressure-gauges-pipework-field-scaled.jpg\",\"keywords\":[\"Pressure\"],\"articleSection\":[\"Knowledge\"],\"inLanguage\":\"vi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/pressure-gauge-condensation-fogging\\\/\",\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/pressure-gauge-condensation-fogging\\\/\",\"name\":\"Pressure Gauge Fogging: Causes and Solutions | SJ Gauge\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/pressure-gauge-condensation-fogging\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/pressure-gauge-condensation-fogging\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/sj-pressure-gauges-pipework-field-scaled.jpg\",\"datePublished\":\"2026-09-21T11:05:59+00:00\",\"dateModified\":\"2026-09-21T11:06:00+00:00\",\"description\":\"Check inside and outside condensation, seals and washdown exposure. 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