{"id":26151,"date":"2024-09-11T14:16:55","date_gmt":"2024-09-11T06:16:55","guid":{"rendered":"https:\/\/chimaytech.net\/?p=26151"},"modified":"2024-09-13T10:33:57","modified_gmt":"2024-09-13T02:33:57","slug":"ph-meter-error","status":"publish","type":"post","link":"https:\/\/chimaytech.net\/vi\/ph-meter-error\/","title":{"rendered":"l\u1ed7i \u0111o ph"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_50 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/chimaytech.net\/vi\/ph-meter-error\/#Cac_nguyen_nhan_pho_bien_gay_ra_loi_cua_may_do_pH\" title=\"C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i c\u1ee7a m\u00e1y \u0111o pH\">C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i c\u1ee7a m\u00e1y \u0111o pH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/chimaytech.net\/vi\/ph-meter-error\/#Cach_khac_phuc_loi_may_do_pH\" title=\"C\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i m\u00e1y \u0111o pH\">C\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i m\u00e1y \u0111o pH<\/a><\/li><\/ul><\/nav><\/div>\n<h1 id=\"common-causes-of-ph-meter-errors-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Cac_nguyen_nhan_pho_bien_gay_ra_loi_cua_may_do_pH\"><\/span>C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i c\u1ee7a m\u00e1y \u0111o pH<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nM\u00e1y \u0111o pH l\u00e0 c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, bao g\u1ed3m th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ed3 u\u1ed1ng, d\u01b0\u1ee3c ph\u1ea9m v\u00e0 gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y \u0111o \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m c\u1ee7a dung d\u1ecbch, cung c\u1ea5p th\u00f4ng tin c\u00f3 gi\u00e1 tr\u1ecb cho m\u1ee5c \u0111\u00edch nghi\u00ean c\u1ee9u v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng. Tuy nhi\u00ean, gi\u1ed1ng nh\u01b0 b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb n\u00e0o, m\u00e1y \u0111o pH d\u1ec5 m\u1eafc l\u1ed7i c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111o. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1 m\u1ed9t s\u1ed1 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i m\u00e1y \u0111o pH v\u00e0 c\u00e1ch ng\u0103n ng\u1eeba ch\u00fang.<\/p>\n<p>M\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y ra l\u1ed7i m\u00e1y \u0111o pH l\u00e0 hi\u1ec7u chu\u1ea9n kh\u00f4ng \u0111\u00fang. Hi\u1ec7u chu\u1ea9n l\u00e0 qu\u00e1 tr\u00ecnh \u0111i\u1ec1u ch\u1ec9nh m\u00e1y \u0111o pH \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 \u0111o ch\u00ednh x\u00e1c. N\u1ebfu m\u00e1y \u0111o pH kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n ch\u00ednh x\u00e1c, n\u00f3 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng ch\u00ednh x\u00e1c. \u0110\u1ec3 ng\u0103n ng\u1eeba l\u1ed7i n\u00e0y, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o pH th\u01b0\u1eddng xuy\u00ean b\u1eb1ng dung d\u1ecbch \u0111\u1ec7m ti\u00eau chu\u1ea9n. Ngo\u00e0i ra, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i tu\u00e2n theo h\u01b0\u1edbng d\u1eabn hi\u1ec7u chu\u1ea9n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111\u1ecdc.<\/p>\n<p>M\u1ed9t nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn kh\u00e1c g\u00e2y ra l\u1ed7i m\u00e1y \u0111o pH l\u00e0 nhi\u1ec5m b\u1ea9n \u0111i\u1ec7n c\u1ef1c. \u0110i\u1ec7n c\u1ef1c pH c\u00f3 th\u1ec3 b\u1ecb nhi\u1ec5m b\u1ea9n, d\u1ea7u ho\u1eb7c c\u00e1c ch\u1ea5t kh\u00e1c, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang. \u0110\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m \u0111i\u1ec7n c\u1ef1c, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i v\u1ec7 sinh \u0111i\u1ec7n c\u1ef1c th\u01b0\u1eddng xuy\u00ean b\u1eb1ng dung d\u1ecbch l\u00e0m s\u1ea1ch ph\u00f9 h\u1ee3p. Ngo\u00e0i ra, b\u1ea3o qu\u1ea3n \u0111i\u1ec7n c\u1ef1c \u0111\u00fang c\u00e1ch trong dung d\u1ecbch b\u1ea3o qu\u1ea3n c\u00f3 th\u1ec3 gi\u00fap ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a ch\u00fang.<\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"Brass Pressure Sensor For Havc Chimay\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/1jaH1uQP5kI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>S\u1ef1 dao \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra l\u1ed7i cho m\u00e1y \u0111o pH. C\u00e1c ph\u00e9p \u0111o pH ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9, ngh\u0129a l\u00e0 nh\u1eefng thay \u0111\u1ed5i v\u1ec1 nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111o. \u0110\u1ec3 ng\u0103n ng\u1eeba c\u00e1c l\u1ed7i li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 s\u1eed d\u1ee5ng m\u00e1y \u0111o pH b\u00f9 nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh th\u1ee7 c\u00f4ng c\u00e1c ch\u1ec9 s\u1ed1 d\u1ef1a tr\u00ean nhi\u1ec7t \u0111\u1ed9 c\u1ee7a dung d\u1ecbch. Ngo\u00e0i ra, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i gi\u1eef m\u00e1y \u0111o pH v\u00e0 dung d\u1ecbch \u1edf nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>S\u1ed1 m\u1eabu<\/td>\n<td colspan=\"2\">B\u1ed9 \u0111i\u1ec1u khi\u1ec3n tr\u1ef1c tuy\u1ebfn \u0111\u1ed9 d\u1eabn \/ n\u1ed3ng \u0111\u1ed9 c\u1ea3m \u1ee9ng CIT-8800<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"6\">Ph\u1ea1m vi \u0111o<\/td>\n<td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n<td>0,00\\\u03bcS\/cm ~ 2000mS\/cm<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">T\u1eadp trung<\/td>\n<td>1.NaOH\\\uff0c\\\uff080-15\\\uff09 ph\u1ea7n tr\u0103m ho\u1eb7c\\\uff0825-50\\\uff09 ph\u1ea7n tr\u0103m \\\uff1b<\/td>\n<\/tr>\n<tr>\n<td>2.HNO3\\\uff08l\u01b0u \u00fd kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a c\u1ea3m bi\u1ebfn\\\uff09\\\uff080-25\\\uff09 ph\u1ea7n tr\u0103m ho\u1eb7c\\\uff0836-82\\\uff09 ph\u1ea7n tr\u0103m \\\uff1b<\/td>\n<\/tr>\n<tr>\n<td>3.\u0110\u01b0\u1eddng cong n\u1ed3ng \u0111\u1ed9 do ng\u01b0\u1eddi d\u00f9ng x\u00e1c \u0111\u1ecbnh.<\/td>\n<\/tr>\n<tr>\n<td>TDS<\/td>\n<td>0,00ppm~1000ppt<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9.<\/td>\n<td>\\\uff080.0 ~ 120.0\\\uff09\\\u2103<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">\u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n<td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n<td>0,01\\\u03bcS\/cm<\/td>\n<\/tr>\n<tr>\n<td>T\u1eadp trung<\/td>\n<td>0.01%<\/td>\n<\/tr>\n<tr>\n<td>TDS<\/td>\n<td>0,01ppm<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9.<\/td>\n<td>0,1\\\u2103<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td rowspan=\"3\">\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n<td>0\\\u03bcS\/cm ~1000\\\u03bcS\/cm \\\u00b110\\\u03bcS\/cm<\/td>\n<\/tr>\n<tr>\n<td>1 mS\/cm~500 mS\/cm \\\u00b11,0 ph\u1ea7n tr\u0103m <\/td>\n<\/tr>\n<tr>\n<td>500mS\/cm~2000 mS\/cm \\\u00b11,0 ph\u1ea7n tr\u0103m <\/td>\n<\/tr>\n<tr>\n<td>TDS<\/td>\n<td>1,5 c\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9.<\/td>\n<td>\\\u00b10.5\\\u2103<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Nhi\u1ec7t \u0111\u1ed9. b\u1ed3i th\u01b0\u1eddng<\/td>\n<td>ph\u1ea7n t\u1eed<\/td>\n<td>Pt1000<\/td>\n<\/tr>\n<tr>\n<td>ph\u1ea1m vi<\/td>\n<td>\\\uff080.0~120.0\\\uff09\\\u2103 b\u00f9 tuy\u1ebfn t\u00ednh<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">\\\uff084~20\\\uff09mA D\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u ra<\/td>\n<td>k\u00eanh<\/td>\n<td>K\u00eanh \u0111\u00f4i<\/td>\n<\/tr>\n<tr>\n<td>t\u00ednh n\u0103ng<\/td>\n<td>C\u00e1ch ly, c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh, \u0111\u1ea3o ng\u01b0\u1ee3c, \u0111\u1ea7u ra 4-20MA, ch\u1ebf \u0111\u1ed9 thi\u1ebft b\u1ecb\/m\u00e1y ph\u00e1t.<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec7n tr\u1edf v\u00f2ng l\u1eb7p<\/td>\n<td>400\\\u03a9\\\uff08Max\\\uff09\\\uff0cDC 24V<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n<td>\\\u00b10.1mA<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">Ki\u1ec3m so\u00e1t li\u00ean h\u1ec7<\/td>\n<td>K\u00eanh<\/td>\n<td>Ba k\u00eanh<\/td>\n<\/tr>\n<tr>\n<td>Li\u00ean h\u1ec7<\/td>\n<td>\u0110\u1ea7u ra r\u01a1le quang \u0111i\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td>C\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh<\/td>\n<td>C\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh \\\uff08 nhi\u1ec7t \u0111\u1ed9 \\\u3001\u0111\u1ed9 d\u1eabn\/n\u1ed3ng \u0111\u1ed9\/TDS\\\u3001th\u1eddi gian\\\uff09\u0111\u1ea7u ra<\/td>\n<\/tr>\n<tr>\n<td>T\u00ednh n\u0103ng<\/td>\n<td>C\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t nhi\u1ec7t \u0111\u1ed9\\\u3001\u0111\u1ed9 d\u1eabn\/n\u1ed3ng \u0111\u1ed9\/TDS\\\u3001 \u0111\u1ecbnh th\u1eddi gian l\u1ef1a ch\u1ecdn NO\/NC\/ PID<\/td>\n<\/tr>\n<tr>\n<td>T\u1ea3i \u0111i\u1ec7n tr\u1edf<\/td>\n<td>50mA\\\uff08Max\\\uff09\\\uff0cAC\/DC 30V\\\uff08Max\\\uff09<\/td>\n<\/tr>\n<tr>\n<td>Giao ti\u1ebfp d\u1eef li\u1ec7u<\/td>\n<td colspan=\"2\">Giao th\u1ee9c RS485,MODBUS<\/td>\n<\/tr>\n<tr>\n<td>Ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td colspan=\"2\">DC 24V\\\u00b14V<\/td>\n<\/tr>\n<tr>\n<td>Ti\u00eau th\u1ee5<\/td>\n<td colspan=\"2\">5.5W<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/td>\n<td colspan=\"2\">Nhi\u1ec7t \u0111\u1ed9\\\uff1a\\\uff080~50\\\uff09\\\u2103 \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i\\\uff1a\\\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5 )<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 nh\u1edb<\/td>\n<td colspan=\"2\">Nhi\u1ec7t \u0111\u1ed9\\\uff1a(-20~60)\\\u2103 \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i\\\uff1a\\\u226485 ph\u1ea7n tr\u0103m RH (kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td>M\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7<\/td>\n<td colspan=\"2\">IP65\\\uff08c\u00f3 n\u1eafp sau\\\uff09<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc ph\u00e1c th\u1ea3o<\/td>\n<td colspan=\"2\">96mm\\\u00d796 mm\\\u00d794mm (H\\\u00d7W\\\u00d7D)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc l\u1ed7<\/td>\n<td colspan=\"2\">91mm\\\u00d791mm(H\\\u00d7W)<\/td>\n<\/tr>\n<tr>\n<td>C\u00e0i \u0111\u1eb7t<\/td>\n<td colspan=\"2\">G\u1eafn b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, l\u1eafp \u0111\u1eb7t nhanh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>\nNhi\u1ec5u \u0111i\u1ec7n l\u00e0 m\u1ed9t nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn kh\u00e1c g\u00e2y ra l\u1ed7i m\u00e1y \u0111o pH. Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb thi\u1ebft b\u1ecb ho\u1eb7c ngu\u1ed3n \u0111i\u1ec7n g\u1ea7n \u0111\u00f3 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3 \u0111o c\u1ee7a m\u00e1y \u0111o pH, d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng ch\u00ednh x\u00e1c. \u0110\u1ec3 tr\u00e1nh nhi\u1ec5u \u0111i\u1ec7n, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 s\u1eed d\u1ee5ng c\u00e1p c\u00f3 v\u1ecf b\u1ecdc v\u00e0 gi\u1eef m\u00e1y \u0111o pH tr\u00e1nh xa c\u00e1c ngu\u1ed3n g\u00e2y nhi\u1ec5u \u0111i\u1ec7n. Ngo\u00e0i ra, n\u1ed1i \u0111\u1ea5t m\u00e1y \u0111o pH \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m nguy c\u01a1 nhi\u1ec5u \u0111i\u1ec7n v\u00e0 \u0111\u1ea3m b\u1ea3o s\u1ed1 \u0111\u1ecdc ch\u00ednh x\u00e1c.<\/p>\n<p>Cu\u1ed1i c\u00f9ng, tu\u1ed5i t\u00e1c v\u00e0 s\u1ef1 hao m\u00f2n c\u0169ng c\u00f3 th\u1ec3 g\u00f3p ph\u1ea7n g\u00e2y ra l\u1ed7i cho m\u00e1y \u0111o pH. Theo th\u1eddi gian, m\u00e1y \u0111o pH c\u00f3 th\u1ec3 xu\u1ed1ng c\u1ea5p v\u00e0 m\u1ea5t \u0111\u1ed9 ch\u00ednh x\u00e1c, d\u1eabn \u0111\u1ebfn sai s\u1ed1 trong k\u1ebft qu\u1ea3 \u0111o. \u0110\u1ec3 ng\u0103n ch\u1eb7n v\u1ea5n \u0111\u1ec1 n\u00e0y, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i thay th\u1ebf c\u00e1c \u0111i\u1ec7n c\u1ef1c c\u1ee7a m\u00e1y \u0111o pH v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c th\u01b0\u1eddng xuy\u00ean. Ngo\u00e0i ra, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i b\u1ea3o qu\u1ea3n m\u00e1y \u0111o pH \u0111\u00fang c\u00e1ch khi kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u00e1nh h\u01b0 h\u1ecfng v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a m\u00e1y.<\/p>\n<p>T\u00f3m l\u1ea1i, l\u1ed7i m\u00e1y \u0111o pH c\u00f3 th\u1ec3 x\u1ea3y ra do nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m hi\u1ec7u chu\u1ea9n kh\u00f4ng \u0111\u00fang, nhi\u1ec5m b\u1ea9n \u0111i\u1ec7n c\u1ef1c, dao \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9, nhi\u1ec5u \u0111i\u1ec7n, tu\u1ed5i th\u1ecd v\u00e0 hao m\u00f2n. B\u1eb1ng c\u00e1ch hi\u1ec3u nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i c\u1ee7a m\u00e1y \u0111o pH v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba, ch\u1eb3ng h\u1ea1n nh\u01b0 hi\u1ec7u chu\u1ea9n, v\u1ec7 sinh v\u00e0 b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a k\u1ebft qu\u1ea3 \u0111o tr\u00ean m\u00e1y \u0111o pH. B\u1eb1ng c\u00e1ch l\u00e0m theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t v\u00e0 h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng m\u00e1y \u0111o pH, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u sai s\u00f3t v\u00e0 c\u00f3 \u0111\u01b0\u1ee3c s\u1ed1 \u0111o pH ch\u00ednh x\u00e1c cho \u1ee9ng d\u1ee5ng c\u1ee7a m\u00ecnh.<\/p>\n<h1 id=\"how-to-troubleshoot-ph-meter-errors-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Cach_khac_phuc_loi_may_do_pH\"><\/span>C\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i m\u00e1y \u0111o pH<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nM\u00e1y \u0111o pH l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, bao g\u1ed3m n\u00f4ng nghi\u1ec7p, th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ed3 u\u1ed1ng, d\u01b0\u1ee3c ph\u1ea9m v\u00e0 gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng. N\u00f3 \u0111o \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m c\u1ee7a dung d\u1ecbch, cung c\u1ea5p th\u00f4ng tin c\u00f3 gi\u00e1 tr\u1ecb cho m\u1ee5c \u0111\u00edch nghi\u00ean c\u1ee9u v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng. Tuy nhi\u00ean, gi\u1ed1ng nh\u01b0 b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb n\u00e0o kh\u00e1c, m\u00e1y \u0111o pH c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i c\u00e1c l\u1ed7i c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111o. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn c\u1ee7a m\u00e1y \u0111o pH v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<p>M\u1ed9t trong nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t m\u00e0 ng\u01b0\u1eddi d\u00f9ng g\u1eb7p ph\u1ea3i v\u1edbi m\u00e1y \u0111o pH l\u00e0 v\u1ea5n \u0111\u1ec1 hi\u1ec7u chu\u1ea9n. Hi\u1ec7u chu\u1ea9n l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111o. N\u1ebfu m\u00e1y \u0111o pH kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n ch\u00ednh x\u00e1c, n\u00f3 c\u00f3 th\u1ec3 cho k\u1ebft qu\u1ea3 kh\u00f4ng ch\u00ednh x\u00e1c. \u0110\u1ec3 kh\u1eafc ph\u1ee5c l\u1ed7i hi\u1ec7u chu\u1ea9n, ng\u01b0\u1eddi d\u00f9ng n\u00ean c\u1ea9n th\u1eadn l\u00e0m theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 s\u1eed d\u1ee5ng c\u00e1c dung d\u1ecbch hi\u1ec7u chu\u1ea9n ph\u00f9 h\u1ee3p. \u0110i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o pH th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a n\u00f3.<\/p>\n<p>M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn kh\u00e1c l\u00e0 nhi\u1ec5m b\u1ea9n \u0111i\u1ec7n c\u1ef1c. \u0110i\u1ec7n c\u1ef1c l\u00e0 b\u1ed9 ph\u1eadn c\u1ee7a m\u00e1y \u0111o pH ti\u1ebfp x\u00fac v\u1edbi dung d\u1ecbch \u0111ang \u0111\u01b0\u1ee3c ki\u1ec3m tra. N\u1ebfu \u0111i\u1ec7n c\u1ef1c b\u1ecb nhi\u1ec5m b\u1ea9n, n\u00f3 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111o. \u0110\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 nhi\u1ec5m b\u1ea9n \u0111i\u1ec7n c\u1ef1c, ng\u01b0\u1eddi d\u00f9ng n\u00ean v\u1ec7 sinh \u0111i\u1ec7n c\u1ef1c th\u01b0\u1eddng xuy\u00ean b\u1eb1ng dung d\u1ecbch v\u1ec7 sinh ph\u00f9 h\u1ee3p v\u00e0 b\u1ea3o qu\u1ea3n \u0111\u00fang c\u00e1ch khi kh\u00f4ng s\u1eed d\u1ee5ng. Vi\u1ec7c thay th\u1ebf \u0111i\u1ec7n c\u1ef1c khi n\u00f3 b\u1ecb m\u00f2n ho\u1eb7c h\u01b0 h\u1ecfng c\u0169ng l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft.<\/p>\n<p>Nhi\u1ec7t \u0111\u1ed9 c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111o tr\u00ean m\u00e1y \u0111o pH. M\u00e1y \u0111o pH \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n \u1edf nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3, th\u01b0\u1eddng l\u00e0 25 \u0111\u1ed9 C. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 c\u1ee7a dung d\u1ecbch \u0111ang \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 so v\u1edbi nhi\u1ec7t \u0111\u1ed9 hi\u1ec7u chu\u1ea9n th\u00ec c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn sai s\u00f3t. \u0110\u1ec3 kh\u1eafc ph\u1ee5c l\u1ed7i nhi\u1ec7t \u0111\u1ed9, ng\u01b0\u1eddi d\u00f9ng n\u00ean s\u1eed d\u1ee5ng m\u00e1y \u0111o pH b\u00f9 nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh ch\u1ec9 s\u1ed1 d\u1ef1a tr\u00ean nhi\u1ec7t \u0111\u1ed9 c\u1ee7a dung d\u1ecbch.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chimaytech.net\/wp-content\/uploads\/2024\/09\/CLA-7000-series-Total-chlorine-DPD-Online-1-1.png\" alt=\"alt-5818\" class=\"wp-image-5818\" id=\"i5818\" \/><\/p>\n<p>M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn kh\u00e1c l\u00e0 tr\u00f4i \u0111i\u1ec7n c\u1ef1c. S\u1ef1 tr\u00f4i \u0111i\u1ec7n c\u1ef1c x\u1ea3y ra khi ch\u1ec9 s\u1ed1 c\u1ee7a m\u00e1y \u0111o pH thay \u0111\u1ed5i d\u1ea7n theo th\u1eddi gian, ngay c\u1ea3 khi \u0111i\u1ec7n c\u1ef1c \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n \u0111\u00fang c\u00e1ch. \u0110\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 tr\u00f4i \u0111i\u1ec7n c\u1ef1c, ng\u01b0\u1eddi d\u00f9ng n\u00ean hi\u1ec7u ch\u1ec9nh l\u1ea1i m\u00e1y \u0111o pH th\u01b0\u1eddng xuy\u00ean v\u00e0 thay th\u1ebf \u0111i\u1ec7n c\u1ef1c n\u1ebfu c\u1ea7n thi\u1ebft. \u0110i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i b\u1ea3o qu\u1ea3n m\u00e1y \u0111o pH \u0111\u00fang c\u00e1ch khi kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng tr\u00f4i \u0111i\u1ec7n c\u1ef1c.<\/p>\n<p>Cu\u1ed1i c\u00f9ng, nhi\u1ec5u \u0111i\u1ec7n c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra l\u1ed7i khi \u0111\u1ecdc tr\u00ean m\u00e1y \u0111o pH. Nhi\u1ec5u \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u1ebfn t\u1eeb c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ho\u1eb7c ngu\u1ed3n \u0111i\u1ec7n g\u1ea7n \u0111\u00f3, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111o. \u0110\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 nhi\u1ec5u \u0111i\u1ec7n, ng\u01b0\u1eddi d\u00f9ng n\u00ean \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u00e1y \u0111o pH \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t \u0111\u00fang c\u00e1ch v\u00e0 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c ngu\u1ed3n nhi\u1ec5u b\u00ean ngo\u00e0i. \u0110i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i s\u1eed d\u1ee5ng m\u00e1y \u0111o pH ch\u1ea5t l\u01b0\u1ee3ng cao c\u00f3 t\u00ednh n\u0103ng gi\u1ea3m ti\u1ebfng \u1ed3n t\u00edch h\u1ee3p \u0111\u1ec3 gi\u1ea3m thi\u1ec3u nhi\u1ec5u \u0111i\u1ec7n.<\/p>\n<p>T\u00f3m l\u1ea1i, l\u1ed7i c\u1ee7a m\u00e1y \u0111o pH c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111\u1ecdc v\u00e0 l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a k\u1ebft qu\u1ea3. B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn c\u1ee7a m\u00e1y \u0111o pH v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c ph\u00e9p \u0111o c\u1ee7a m\u00e1y \u0111o pH. Hi\u1ec7u chu\u1ea9n th\u01b0\u1eddng xuy\u00ean, b\u1ea3o tr\u00ec th\u00edch h\u1ee3p v\u00e0 ch\u00fa \u00fd c\u1ea9n th\u1eadn \u0111\u1ebfn c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ng\u0103n ng\u1eeba sai s\u00f3t v\u00e0 \u0111\u1ea3m b\u1ea3o ph\u00e9p \u0111o pH ch\u00ednh x\u00e1c. B\u1eb1ng c\u00e1ch l\u00e0m theo c\u00e1c m\u1eb9o kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 n\u00e0y, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u1ed1i \u0111a h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y \u0111o pH v\u00e0 thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady cho \u1ee9ng d\u1ee5ng c\u1ee7a m\u00ecnh.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i c\u1ee7a m\u00e1y \u0111o pH M\u00e1y \u0111o pH l\u00e0 c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, bao g\u1ed3m th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ed3 u\u1ed1ng, d\u01b0\u1ee3c ph\u1ea9m v\u00e0 gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y \u0111o \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m c\u1ee7a&#8230;<\/p>\n","protected":false},"author":1,"featured_media":19712,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"default","_kad_post_title":"default","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"categories":[202],"tags":[203173,203228,87669,203661],"translation":{"provider":"WPGlobus","version":"2.12.0","language":"vi","enabled_languages":["en","es","de","fr","ru","pt","ar","ja","ko","it","id","hi","th","vi","tr"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"es":{"title":true,"content":true,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"fr":{"title":true,"content":true,"excerpt":false},"ru":{"title":true,"content":true,"excerpt":false},"pt":{"title":true,"content":true,"excerpt":false},"ar":{"title":true,"content":true,"excerpt":false},"ja":{"title":true,"content":true,"excerpt":false},"ko":{"title":true,"content":true,"excerpt":false},"it":{"title":true,"content":true,"excerpt":false},"id":{"title":true,"content":true,"excerpt":false},"hi":{"title":true,"content":true,"excerpt":false},"th":{"title":true,"content":true,"excerpt":false},"vi":{"title":true,"content":true,"excerpt":false},"tr":{"title":true,"content":true,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/26151"}],"collection":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/comments?post=26151"}],"version-history":[{"count":16,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/26151\/revisions"}],"predecessor-version":[{"id":26482,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/26151\/revisions\/26482"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media\/19712"}],"wp:attachment":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media?parent=26151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/categories?post=26151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/tags?post=26151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}