{"id":9796,"date":"2024-04-02T13:31:08","date_gmt":"2024-04-02T05:31:08","guid":{"rendered":"https:\/\/shchimay.com\/?p=9796"},"modified":"2024-04-09T17:04:29","modified_gmt":"2024-04-09T09:04:29","slug":"are-soil-ph-meters-accurate","status":"publish","type":"post","link":"https:\/\/shchimay.com\/vi\/are-soil-ph-meters-accurate\/","title":{"rendered":"m\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t c\u00f3 ch\u00ednh x\u00e1c kh\u00f4ng"},"content":{"rendered":"<p>&#8220;Nh\u1eadn k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c v\u1edbi m\u00e1y \u0111o pH \u0111\u1ea5t c\u1ee7a ch\u00fang t\u00f4i.&#8221;<\/p>\n<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:\/\/shchimay.com\/vi\/are-soil-ph-meters-accurate\/#Uu_diem_va_nhuoc_diem_cua_viec_su_dung_may_do_pH_dat_de_do_chinh_xac\" title=\"\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t \u0111\u1ec3 \u0111o ch\u00ednh x\u00e1c\">\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t \u0111\u1ec3 \u0111o ch\u00ednh x\u00e1c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/shchimay.com\/vi\/are-soil-ph-meters-accurate\/#Cach_hieu_chinh_va_bao_tri_may_do_do_pH_cua_dat_de_co_ket_qua_dang_tin_cay\" title=\"C\u00e1ch hi\u1ec7u ch\u1ec9nh v\u00e0 b\u1ea3o tr\u00ec m\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t \u0111\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady\">C\u00e1ch hi\u1ec7u ch\u1ec9nh v\u00e0 b\u1ea3o tr\u00ec m\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t \u0111\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady<\/a><\/li><\/ul><\/nav><\/div>\n<h1 id=\"pros-and-cons-of-using-soil-ph-meters-for-accurate-measurements-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Uu_diem_va_nhuoc_diem_cua_viec_su_dung_may_do_pH_dat_de_do_chinh_xac\"><\/span>\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t \u0111\u1ec3 \u0111o ch\u00ednh x\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nM\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb d\u00e0nh cho nh\u1eefng ng\u01b0\u1eddi l\u00e0m v\u01b0\u1eddn v\u00e0 n\u00f4ng d\u00e2n mu\u1ed1n \u0111o ch\u00ednh x\u00e1c \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m trong \u0111\u1ea5t c\u1ee7a h\u1ecd. Nh\u1eefng thi\u1ebft b\u1ecb n\u00e0y cung c\u1ea5p m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u00e0 d\u1ec5 d\u00e0ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y tr\u1ed3ng v\u00e0 s\u1ee9c kh\u1ecfe t\u1ed5ng th\u1ec3 c\u1ee7a \u0111\u1ea5t. Tuy nhi\u00ean, gi\u1ed1ng nh\u01b0 b\u1ea5t k\u1ef3 c\u00f4ng c\u1ee5 n\u00e0o, m\u00e1y \u0111o pH \u0111\u1ea5t \u0111\u1ec1u c\u00f3 nh\u1eefng \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>M\u00f4 h\u00ecnh<\/td>\n<td>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9 d\u1eabn\/\u0111i\u1ec7n tr\u1edf su\u1ea5t ch\u00ednh x\u00e1c cao EC-8851\/EC-9900<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Ph\u1ea1m vi<\/td>\n<td>0-200\/2000\/4000\/10000uS\/cm<\/td>\n<\/tr>\n<tr>\n<td>0-20\/200mS\/cm 0-18,25M\u03a9<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n: 1,5%; v\u00e0 nbsp; \u0110i\u1ec7n tr\u1edf su\u1ea5t:2,0% (FS)<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9. Comp.<\/td>\n<td>B\u00f9 nhi\u1ec7t \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng d\u1ef1a tr\u00ean 25\u2103<\/td>\n<\/tr>\n<tr>\n<td>Ho\u1ea1t \u0111\u1ed9ng. Nhi\u1ec7t \u0111\u1ed9<\/td>\n<td>B\u00ecnh th\u01b0\u1eddng 0\uff5e50\u2103; Nhi\u1ec7t \u0111\u1ed9 cao 0\uff5e120\u2103<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn<\/td>\n<td>0,01\/0,02\/0,1\/1,0\/10,0cm<sup>-1<\/sup><\/td>\n<\/tr>\n<tr>\n<td>Hi\u1ec3n th\u1ecb<\/td>\n<td>M\u00e0n H\u00ecnh LCD<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ea7u Ra Hi\u1ec7n T\u1ea1i<\/td>\n<td>\u0110\u1ea7u ra 4-20mA\/2-10V\/1-5V<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ea7u ra<\/td>\n<td>\u0110i\u1ec1u khi\u1ec3n r\u01a1le k\u00e9p gi\u1edbi h\u1ea1n Cao\/Th\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">S\u1ee9c m\u1ea1nh<\/td>\n<td>DC24V\/0.5A ho\u1eb7c<\/td>\n<\/tr>\n<tr>\n<td>AC85-265V\u00b110 ph\u1ea7n tr\u0103m 50\/60Hz<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/td>\n<td>Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng:0\uff5e50\u2103<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i\u226485 ph\u1ea7n tr\u0103m<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc<\/td>\n<td>96\u00d796\u00d772mm(H\u00d7W\u00d7L)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc l\u1ed7<\/td>\n<td>92\u00d792mm(H\u00d7W)<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ebf \u0110\u1ed9 C\u00e0i \u0110\u1eb7t<\/td>\n<td>\u0110\u00e3 nh\u00fang<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>\nM\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t l\u00e0 s\u1ef1 ti\u1ec7n l\u1ee3i m\u00e0 n\u00f3 mang l\u1ea1i. V\u1edbi m\u1ed9t \u0111\u1ea7u d\u00f2 \u0111\u01a1n gi\u1ea3n \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o \u0111\u1ea5t, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u1ecdc ngay m\u1ee9c \u0111\u1ed9 pH, cho ph\u00e9p h\u1ecd \u0111i\u1ec1u ch\u1ec9nh nhanh ch\u00f3ng \u0111\u1ea5t n\u1ebfu c\u1ea7n. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho nh\u1eefng ng\u01b0\u1eddi m\u1edbi l\u00e0m v\u01b0\u1eddn ho\u1eb7c tr\u1ed3ng tr\u1ecdt v\u00e0 c\u00f3 th\u1ec3 ch\u01b0a c\u00f3 nhi\u1ec1u kinh nghi\u1ec7m ki\u1ec3m tra \u0111\u1ea5t.<\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"plastic quick release coupling\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/fD4wrM4EtY8?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>\nM\u1ed9t l\u1ee3i \u00edch kh\u00e1c c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t l\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed. M\u1eb7c d\u00f9 c\u00e1c d\u1ecbch v\u1ee5 ki\u1ec3m tra \u0111\u1ea5t chuy\u00ean nghi\u1ec7p c\u00f3 th\u1ec3 t\u1ed1n k\u00e9m nh\u01b0ng m\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn t\u01b0\u01a1ng \u0111\u1ed1i h\u1ee3p l\u00fd cho nh\u1eefng ai mu\u1ed1n theo d\u00f5i \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t m\u1ed9t c\u00e1ch th\u01b0\u1eddng xuy\u00ean. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap ng\u01b0\u1eddi d\u00f9ng ti\u1ebft ki\u1ec7m ti\u1ec1n v\u1ec1 l\u00e2u d\u00e0i b\u1eb1ng c\u00e1ch cho ph\u00e9p h\u1ecd \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t v\u1ec1 vi\u1ec7c c\u1ea3i t\u1ea1o \u0111\u1ea5t v\u00e0 ph\u00e2n b\u00f3n.<\/p>\n<p><div style=\"width: 640px;\" class=\"wp-video\"><!--[if lt IE 9]><script>document.createElement('video');<\/script><![endif]-->\n<video class=\"wp-video-shortcode\" id=\"video-9796-1\" width=\"640\" height=\"360\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/EC-1800.mp4?_=1\" \/><a href=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/EC-1800.mp4\">http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/EC-1800.mp4<\/a><\/video><\/div>Tuy nhi\u00ean, b\u1ea5t ch\u1ea5p nh\u1eefng \u01b0u \u0111i\u1ec3m n\u00e0y, vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t \u0111\u1ec3 \u0111o ch\u00ednh x\u00e1c c\u0169ng c\u00f3 m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf. M\u1ed9t trong nh\u1eefng m\u1ed1i quan t\u00e2m ch\u00ednh l\u00e0 kh\u1ea3 n\u0103ng x\u1ea3y ra l\u1ed7i c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. M\u00e1y \u0111o pH \u0111\u1ea5t y\u00eau c\u1ea7u hi\u1ec7u chu\u1ea9n v\u00e0 k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ed1 \u0111\u1ecdc ch\u00ednh x\u00e1c v\u00e0 n\u1ebfu kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch, ch\u00fang c\u00f3 th\u1ec3 cung c\u1ea5p k\u1ebft qu\u1ea3 sai l\u1ec7ch. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c s\u1eeda \u0111\u1ed5i \u0111\u1ea5t kh\u00f4ng ch\u00ednh x\u00e1c, c\u00f3 th\u1ec3 c\u00f3 t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y tr\u1ed3ng.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/shchimay.com\/wp-content\/uploads\/2024\/04\/\u5fae\u4fe1\u56fe\u7247_20230508094108-scaled.jpg\" alt=\"alt-466\" class=\"wp-image-466\" id=\"i466\" \/><\/p>\n<p>M\u1ed9t v\u1ea5n \u0111\u1ec1 kh\u00e1c v\u1edbi m\u00e1y \u0111o pH \u0111\u1ea5t l\u00e0 ph\u1ea1m vi \u0111o h\u1ea1n ch\u1ebf c\u1ee7a ch\u00fang. H\u1ea7u h\u1ebft c\u00e1c m\u00e1y \u0111o pH \u0111\u1ea5t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111o trong ph\u1ea1m vi pH c\u1ee5 th\u1ec3, th\u01b0\u1eddng l\u00e0 t\u1eeb 3,0 \u0111\u1ebfn 8,0. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ch\u00fang c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c lo\u1ea1i \u0111\u1ea5t n\u1eb1m ngo\u00e0i ph\u1ea1m vi n\u00e0y, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ea5t c\u00f3 t\u00ednh axit ho\u1eb7c ki\u1ec1m cao. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i nh\u1edd \u0111\u1ebfn c\u00e1c d\u1ecbch v\u1ee5 ki\u1ec3m tra \u0111\u1ea5t chuy\u00ean nghi\u1ec7p \u0111\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n<p>B\u1ea5t ch\u1ea5p nh\u1eefng h\u1ea1n ch\u1ebf n\u00e0y, m\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t v\u1eabn c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 theo d\u00f5i \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra \u0111\u1ea5t kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 ph\u00e2n t\u00edch trong ph\u00f2ng th\u00ed nghi\u1ec7m ho\u1eb7c que th\u1eed, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap h\u1ecd \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t v\u1ec1 vi\u1ec7c c\u1ea3i t\u1ea1o \u0111\u1ea5t v\u00e0 ph\u00e2n b\u00f3n, gi\u00fap c\u00e2y tr\u1ed3ng kh\u1ecfe m\u1ea1nh h\u01a1n v\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea5t.<\/p>\n<p>T\u00f3m l\u1ea1i, m\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 h\u1eefu \u00edch \u0111\u1ec3 \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t, cung c\u1ea5p cho ng\u01b0\u1eddi d\u00f9ng k\u1ebft qu\u1ea3 nhanh ch\u00f3ng v\u00e0 thu\u1eadn ti\u1ec7n. Tuy nhi\u00ean, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb n\u00e0y v\u00e0 s\u1eed d\u1ee5ng ch\u00fang c\u00f9ng v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra \u0111\u1ea5t kh\u00e1c \u0111\u1ec3 c\u00f3 c\u00e1c ph\u00e9p \u0111o ch\u00ednh x\u00e1c h\u01a1n. B\u1eb1ng c\u00e1ch hi\u1ec3u \u0111\u01b0\u1ee3c nh\u1eefng \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t v\u1ec1 c\u00e1ch theo d\u00f5i v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 pH \u0111\u1ea5t t\u1ed1t nh\u1ea5t \u0111\u1ec3 c\u00e2y tr\u1ed3ng ph\u00e1t tri\u1ec3n t\u1ed1i \u01b0u v\u00e0 s\u1ee9c kh\u1ecfe c\u1ee7a \u0111\u1ea5t.<\/p>\n<h1 id=\"how-to-calibrate-and-maintain-soil-ph-meters-for-reliable-results-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Cach_hieu_chinh_va_bao_tri_may_do_do_pH_cua_dat_de_co_ket_qua_dang_tin_cay\"><\/span>C\u00e1ch hi\u1ec7u ch\u1ec9nh v\u00e0 b\u1ea3o tr\u00ec m\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t \u0111\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nM\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t l\u00e0 c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu \u0111\u1ec3 ng\u01b0\u1eddi l\u00e0m v\u01b0\u1eddn, n\u00f4ng d\u00e2n v\u00e0 nh\u00e0 nghi\u00ean c\u1ee9u \u0111o ch\u00ednh x\u00e1c \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m c\u1ee7a \u0111\u1ea5t. Duy tr\u00ec m\u1ee9c \u0111\u1ed9 pH ch\u00ednh x\u00e1c l\u00e0 r\u1ea5t quan tr\u1ecdng cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y tr\u1ed3ng v\u00e0 s\u1ee9c kh\u1ecfe t\u1ed5ng th\u1ec3 c\u1ee7a \u0111\u1ea5t. Tuy nhi\u00ean, \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00e1y \u0111o pH \u0111\u1ea5t c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nhau nh\u01b0 hi\u1ec7u chu\u1ea9n v\u00e0 b\u1ea3o tr\u00ec. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd th\u1ea3o lu\u1eadn c\u00e1ch hi\u1ec7u chu\u1ea9n v\u00e0 b\u1ea3o tr\u00ec m\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady.<\/p>\n<p>Hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o \u0111\u1ed9 pH c\u1ee7a \u0111\u1ea5t l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c. Hi\u1ec7u chu\u1ea9n bao g\u1ed3m vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh m\u00e1y \u0111o \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi dung d\u1ecbch chu\u1ea9n \u0111\u00e3 bi\u1ebft v\u1edbi m\u1ee9c \u0111\u1ed9 pH c\u1ee5 th\u1ec3. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u00e1y \u0111o \u0111o ch\u00ednh x\u00e1c \u0111\u1ed9 pH c\u1ee7a m\u1eabu \u0111\u1ea5t. \u0110\u1ec3 hi\u1ec7u chu\u1ea9n m\u00e1y \u0111o pH \u0111\u1ea5t, b\u1ea1n s\u1ebd c\u1ea7n c\u00e1c dung d\u1ecbch hi\u1ec7u chu\u1ea9n c\u00f3 \u0111\u1ed9 pH l\u00e0 4,01, 7,00 v\u00e0 10,01. B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch r\u1eeda \u0111i\u1ec7n c\u1ef1c b\u1eb1ng n\u01b0\u1edbc c\u1ea5t v\u00e0 sau \u0111\u00f3 nh\u00fang \u0111i\u1ec7n c\u1ef1c v\u00e0o dung d\u1ecbch hi\u1ec7u chu\u1ea9n pH 7,00. \u0110i\u1ec1u ch\u1ec9nh m\u00e1y \u0111o \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ed9 pH c\u1ee7a dung d\u1ecbch theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t. L\u1eb7p l\u1ea1i quy tr\u00ecnh n\u00e0y v\u1edbi c\u00e1c dung d\u1ecbch hi\u1ec7u chu\u1ea9n pH 4,01 v\u00e0 10,01 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c tr\u00ean nhi\u1ec1u m\u1ee9c \u0111\u1ed9 pH.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>M\u00f4 h\u00ecnh<\/td>\n<td>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n tr\u1ef1c tuy\u1ebfn \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n d\u00f2ng CCT-3300<\/td>\n<\/tr>\n<tr>\n<td>Kh\u00f4ng \u0111\u1ed5i<\/td>\n<td>0,01cm<sup>-1<\/sup>, 0,1 cm<sup>-1<\/sup>, 1,0cm<sup>-1<\/sup>, 10,0cm<sup>-1<\/sup><\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n<td>(0,5~20)mS\/cm,(0,5~2.000)uS\/cm, (0,5~200)uS\/cm, (0,05~18,25)MQ\u00b7cm<\/td>\n<\/tr>\n<tr>\n<td>TDS<\/td>\n<td>(250~10.000)ppm, (0,5~1.000)ppm, (0,25~100)ppm<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh.<\/td>\n<td>(0~50)\u2103<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n<td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n: 0,01uS\/cm, TDS:0,01ppm, Nhi\u1ec7t \u0111\u1ed9: 0,1\u2103<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n: 1,5 ph\u1ea7n tr\u0103m (FS), \u0110i\u1ec7n tr\u1edf su\u1ea5t: 2,0 ph\u1ea7n tr\u0103m (FS), TDS: 1,5 ph\u1ea7n tr\u0103m (FS), Nhi\u1ec7t \u0111\u1ed9: +\/- 0,5\u2103<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9. b\u1ed3i th\u01b0\u1eddng<\/td>\n<td>(0-50)\u00b0C (v\u1edbi 25\u2103 l\u00e0 Ti\u00eau chu\u1ea9n)<\/td>\n<\/tr>\n<tr>\n<td>Chi\u1ec1u d\u00e0i c\u00e1p<\/td>\n<td>\u22645m(MAX)<\/td>\n<\/tr>\n<tr>\n<td>\u0111\u1ea7u ra mA<\/td>\n<td>C\u00e1ch ly (4~20)mA, Thi\u1ebft b\u1ecb \/ M\u00e1y ph\u00e1t \u0111\u1ec3 l\u1ef1a ch\u1ecdn<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ea7u Ra \u0110i\u1ec1u Khi\u1ec3n<\/td>\n<td>ti\u1ebfp \u0111i\u1ec3m r\u01a1le: B\u1eacT\/T\u1eaeT, C\u00f4ng su\u1ea5t t\u1ea3i: AC 230V\/5A(Max)<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/td>\n<td>Nhi\u1ec7t \u0111\u1ed9 (0~50)\u2103;\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i \u226485 ph\u1ea7n tr\u0103m RH (kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef<\/td>\n<td>Nhi\u1ec7t \u0111\u1ed9.(-20~60)\u2103;\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i \u226485 ph\u1ea7n tr\u0103m RH (kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td>Ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td>CCT-3300:DC 24V; CCT-3310: AC 110V; CCT-3320: AC 220V<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc<\/td>\n<td>48mmx96mmx80mm(HxWxD)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc l\u1ed7<\/td>\n<td>44mmx92mm(CxR)<\/td>\n<\/tr>\n<tr>\n<td>C\u00e0i \u0111\u1eb7t<\/td>\n<td>G\u1eafn b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, l\u1eafp \u0111\u1eb7t nhanh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>\nSau khi hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o pH \u0111\u1ea5t, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i b\u1ea3o tr\u00ec m\u00e1y \u0111\u00fang c\u00e1ch \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady. B\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean bao g\u1ed3m l\u00e0m s\u1ea1ch \u0111i\u1ec7n c\u1ef1c sau m\u1ed7i l\u1ea7n s\u1eed d\u1ee5ng \u0111\u1ec3 lo\u1ea1i b\u1ecf b\u1ea5t k\u1ef3 h\u1ea1t \u0111\u1ea5t ho\u1eb7c m\u1ea3nh v\u1ee5n n\u00e0o c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 \u0111o. D\u00f9ng b\u00e0n ch\u1ea3i ho\u1eb7c v\u1ea3i m\u1ec1m \u0111\u1ec3 l\u00e0m s\u1ea1ch nh\u1eb9 \u0111i\u1ec7n c\u1ef1c v\u00e0 r\u1eeda s\u1ea1ch b\u1eb1ng n\u01b0\u1edbc c\u1ea5t. Tr\u00e1nh s\u1eed d\u1ee5ng h\u00f3a ch\u1ea5t m\u1ea1nh ho\u1eb7c v\u1eadt li\u1ec7u m\u00e0i m\u00f2n c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng \u0111i\u1ec7n c\u1ef1c. Ngo\u00e0i ra, h\u00e3y b\u1ea3o qu\u1ea3n m\u00e1y \u0111o pH \u0111\u1ea5t trong h\u1ed9p b\u1ea3o v\u1ec7 ho\u1eb7c dung d\u1ecbch b\u1ea3o qu\u1ea3n \u0111\u1ec3 tr\u00e1nh h\u01b0 h\u1ecfng v\u00e0 \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd.<\/p>\n<p>Ngo\u00e0i vi\u1ec7c hi\u1ec7u chu\u1ea9n v\u00e0 b\u1ea3o tr\u00ec, c\u1ea7n ph\u1ea3i xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00e1y \u0111o pH \u0111\u1ea5t. C\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng nh\u01b0 nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed3ng h\u1ed3. \u0110\u1ea3m b\u1ea3o r\u1eb1ng m\u00e1y \u0111o pH \u0111\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb v\u00e0 trong m\u00f4i tr\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c. Ngo\u00e0i ra, tr\u00e1nh \u0111\u1ec3 m\u00e1y \u0111o ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao ho\u1eb7c \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp v\u00ec \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/shchimay.com\/wp-content\/uploads\/2024\/04\/DO-1800-Dissolved-oxygen-measurement-and-control-instrument-4.png\" alt=\"alt-4618\" class=\"wp-image-4618\" id=\"i4618\" \/><\/p>\n<p>H\u01a1n n\u1eefa, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i tu\u00e2n theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. Vi\u1ec7c s\u1eed d\u1ee5ng kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 \u0111o kh\u00f4ng ch\u00ednh x\u00e1c v\u00e0 kh\u00f4ng \u0111\u00e1ng tin c\u1eady. H\u00e3y d\u00e0nh th\u1eddi gian l\u00e0m quen v\u1edbi c\u00e1c t\u00ednh n\u0103ng v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. N\u1ebfu b\u1ea1n kh\u00f4ng ch\u1eafc ch\u1eafn v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ea5t, h\u00e3y tham kh\u1ea3o h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn.<\/p>\n<p><div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-9796-2\" width=\"640\" height=\"360\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ROC-8221-Factory-supply-Single-Stage-Double-Channels-RO-Controller.mp4?_=2\" \/><a href=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ROC-8221-Factory-supply-Single-Stage-Double-Channels-RO-Controller.mp4\">http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ROC-8221-Factory-supply-Single-Stage-Double-Channels-RO-Controller.mp4<\/a><\/video><\/div>T\u00f3m l\u1ea1i, m\u00e1y \u0111o pH \u0111\u1ea5t l\u00e0 c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 \u0111o \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m c\u1ee7a \u0111\u1ea5t. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i hi\u1ec7u ch\u1ec9nh v\u00e0 b\u1ea3o tr\u00ec m\u00e1y \u0111o \u0111\u00fang c\u00e1ch. B\u1eb1ng c\u00e1ch l\u00e0m theo c\u00e1c b\u01b0\u1edbc \u0111\u01b0\u1ee3c n\u00eau trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c v\u00e0 duy tr\u00ec s\u1ee9c kh\u1ecfe c\u1ee7a c\u00e2y tr\u1ed3ng v\u00e0 \u0111\u1ea5t. H\u00e3y nh\u1edb hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o th\u01b0\u1eddng xuy\u00ean, v\u1ec7 sinh \u0111i\u1ec7n c\u1ef1c sau m\u1ed7i l\u1ea7n s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o qu\u1ea3n \u0111\u00fang c\u00e1ch \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a m\u00e1y. 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