{"id":26682,"date":"2024-09-13T13:58:55","date_gmt":"2024-09-13T05:58:55","guid":{"rendered":"https:\/\/chimaytech.net\/?p=26682"},"modified":"2024-09-15T10:47:55","modified_gmt":"2024-09-15T02:47:55","slug":"how-to-calibrate-ph-meter","status":"publish","type":"post","link":"https:\/\/chimaytech.net\/vi\/how-to-calibrate-ph-meter\/","title":{"rendered":"c\u00e1ch hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o ph"},"content":{"rendered":"<h1 id=\"proper-techniques-for-calibrating-a-ph-meter-wpaicgheading\">K\u1ef9 thu\u1eadt hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o pH \u0111\u00fang c\u00e1ch<\/h1>\n<p>\nM\u00e1y \u0111o pH l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai l\u00e0m vi\u1ec7c trong m\u00f4i tr\u01b0\u1eddng ph\u00f2ng th\u00ed nghi\u1ec7m, v\u00ec n\u00f3 cho ph\u00e9p \u0111o ch\u00ednh x\u00e1c \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m c\u1ee7a dung d\u1ecbch. Tuy nhi\u00ean, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a k\u1ebft qu\u1ea3 \u0111o pH, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i hi\u1ec7u ch\u1ec9nh thi\u1ebft b\u1ecb th\u01b0\u1eddng xuy\u00ean. Hi\u1ec7u chu\u1ea9n l\u00e0 qu\u00e1 tr\u00ecnh \u0111i\u1ec1u ch\u1ec9nh m\u00e1y \u0111o pH \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 cung c\u1ea5p c\u00e1c ph\u00e9p \u0111o ch\u00ednh x\u00e1c v\u00e0 ch\u00ednh x\u00e1c. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1c k\u1ef9 thu\u1eadt th\u00edch h\u1ee3p \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o pH nh\u1eb1m \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c cho k\u1ebft qu\u1ea3 c\u1ee7a b\u1ea1n.<\/p>\n<p>Tr\u01b0\u1edbc khi hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o pH, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i thu th\u1eadp t\u1ea5t c\u1ea3 c\u00e1c v\u1eadt li\u1ec7u c\u1ea7n thi\u1ebft. B\u1ea1n s\u1ebd c\u1ea7n c\u00e1c dung d\u1ecbch hi\u1ec7u chu\u1ea9n c\u00f3 gi\u00e1 tr\u1ecb pH \u0111\u00e3 bi\u1ebft, th\u01b0\u1eddng l\u00e0 pH 4,01, pH 7,00 v\u00e0 pH 10,01. Nh\u1eefng dung d\u1ecbch n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c mua th\u01b0\u01a1ng m\u1ea1i ho\u1eb7c t\u1ef1 pha ch\u1ebf b\u1eb1ng dung d\u1ecbch \u0111\u1ec7m pH. Ngo\u00e0i ra, b\u1ea1n s\u1ebd c\u1ea7n m\u1ed9t c\u1ed1c th\u1ee7y tinh ho\u1eb7c v\u1eadt ch\u1ee9a s\u1ea1ch \u0111\u1ec3 \u0111\u1ef1ng dung d\u1ecbch hi\u1ec7u chu\u1ea9n c\u0169ng nh\u01b0 \u0111i\u1ec7n c\u1ef1c s\u1ea1ch v\u00e0 kh\u00f4 cho m\u00e1y \u0111o pH.<\/p>\n<p>\u0110\u1ec3 b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh hi\u1ec7u chu\u1ea9n, h\u00e3y b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch r\u1eeda \u0111i\u1ec7n c\u1ef1c b\u1eb1ng n\u01b0\u1edbc c\u1ea5t \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u1eb7n ho\u1eb7c ch\u1ea5t c\u1eb7n. ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m. Ti\u1ebfp theo, nh\u00fang \u0111i\u1ec7n c\u1ef1c v\u00e0o dung d\u1ecbch hi\u1ec7u chu\u1ea9n pH 7,00 v\u00e0 \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh trong v\u00e0i ph\u00fat. Sau khi ch\u1ec9 s\u1ed1 tr\u00ean m\u00e1y \u0111o pH \u1ed5n \u0111\u1ecbnh, h\u00e3y \u0111i\u1ec1u ch\u1ec9nh n\u00fam hi\u1ec7u ch\u1ec9nh tr\u00ean m\u00e1y \u0111o cho \u0111\u1ebfn khi m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb gi\u00e1 tr\u1ecb pH ch\u00ednh x\u00e1c l\u00e0 7,00. R\u1eeda s\u1ea1ch \u0111i\u1ec7n c\u1ef1c b\u1eb1ng n\u01b0\u1edbc c\u1ea5t m\u1ed9t l\u1ea7n n\u1eefa tr\u01b0\u1edbc khi chuy\u1ec3n sang b\u01b0\u1edbc ti\u1ebfp theo.<\/p>\n<p>Sau khi hi\u1ec7u chu\u1ea9n m\u00e1y \u0111o pH b\u1eb1ng dung d\u1ecbch pH 7,00, l\u1eb7p l\u1ea1i quy tr\u00ecnh v\u1edbi dung d\u1ecbch hi\u1ec7u chu\u1ea9n pH 4,01 v\u00e0 pH 10,01. Nh\u00fang \u0111i\u1ec7n c\u1ef1c v\u00e0o t\u1eebng dung d\u1ecbch, \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111i\u1ec1u ch\u1ec9nh n\u00fam hi\u1ec7u chu\u1ea9n tr\u00ean m\u00e1y \u0111o cho \u0111\u1ebfn khi m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb gi\u00e1 tr\u1ecb pH ch\u00ednh x\u00e1c cho t\u1eebng dung d\u1ecbch. R\u1eeda s\u1ea1ch \u0111i\u1ec7n c\u1ef1c b\u1eb1ng n\u01b0\u1edbc c\u1ea5t gi\u1eefa m\u1ed7i l\u1ea7n hi\u1ec7u chu\u1ea9n \u0111\u1ec3 tr\u00e1nh l\u00e0m nhi\u1ec5m b\u1ea9n c\u00e1c dung d\u1ecbch.<\/p>\n<p>Sau khi b\u1ea1n \u0111\u00e3 hi\u1ec7u chu\u1ea9n m\u00e1y \u0111o pH b\u1eb1ng c\u1ea3 ba dung d\u1ecbch hi\u1ec7u chu\u1ea9n, h\u00e3y r\u1eeda \u0111i\u1ec7n c\u1ef1c b\u1eb1ng n\u01b0\u1edbc c\u1ea5t l\u1ea7n cu\u1ed1i v\u00e0 lau kh\u00f4 b\u1eb1ng kh\u0103n gi\u1ea5y s\u1ea1ch. M\u00e1y \u0111o pH hi\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n v\u00e0 s\u1eb5n s\u00e0ng s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o \u0111\u1ed9 axit ho\u1eb7c ki\u1ec1m c\u1ee7a m\u1eabu.<\/p>\n<p>\u0110i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd l\u00e0 m\u00e1y \u0111o pH ph\u1ea3i \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n th\u01b0\u1eddng xuy\u00ean, l\u00fd t\u01b0\u1edfng nh\u1ea5t l\u00e0 tr\u01b0\u1edbc m\u1ed7i l\u1ea7n s\u1eed d\u1ee5ng, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00e9p \u0111o. Ngo\u00e0i ra, n\u00ean hi\u1ec7u chu\u1ea9n m\u00e1y \u0111o pH v\u1edbi \u00edt nh\u1ea5t hai \u0111i\u1ec3m hi\u1ec7u chu\u1ea9n, ch\u1eb3ng h\u1ea1n nh\u01b0 pH 4,01 v\u00e0 pH 7,00, \u0111\u1ec3 x\u1eed l\u00fd m\u1ecdi l\u1ed7i ti\u1ec1m \u1ea9n trong k\u1ebft qu\u1ea3 \u0111o.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>M\u00f4 h\u00ecnh<\/td>\n<td>M\u00e1y \u0111o pH\/ORP tr\u1ef1c tuy\u1ebfn pH\/ORP-5500<\/td>\n<\/tr>\n<tr>\n<td>Ph\u1ea1m vi<\/td>\n<td>pH:0,00~14,00 ; ORP: (-2000~+2000)mV; Nhi\u1ec7t \u0111\u1ed9.:(0,0~99,9)\\\u00b0C (Nhi\u1ec7t \u0111\u1ed9 b\u00f9: NTC10K)<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n<td>pH:0,01 ; ORP: 1mV; Nhi\u1ec7t \u0111\u1ed9.:0.1\\\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td>pH:+\/-0,1 ; ORP: +\/- 5mV (\u0111\u01a1n v\u1ecb \u0111i\u1ec7n t\u1eed); Nhi\u1ec7t \u0111\u1ed9.: +\/-0,5\\\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9. b\u1ed3i th\u01b0\u1eddng<\/td>\n<td>Ph\u1ea1m vi: (0~120)\\\u00b0C; ph\u1ea7n t\u1eed: Pt1000<\/td>\n<\/tr>\n<tr>\n<td>Dung d\u1ecbch \u0111\u1ec7m<\/td>\n<td>gi\u00e1 tr\u1ecb pH 9,18; 6,86; 4,01; 10 gi\u1edd; 7 gi\u1edd; 4 gi\u1edd 00<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh.<\/td>\n<td>(0~50)\\\u00b0C (v\u1edbi 25\\\u00b0C l\u00e0 ti\u00eau chu\u1ea9n) nhi\u1ec7t \u0111\u1ed9 th\u1ee7 c\u00f4ng\/t\u1ef1 \u0111\u1ed9ng. b\u1ed3i th\u01b0\u1eddng cho vi\u1ec7c l\u1ef1a ch\u1ecdn<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ea7u ra t\u01b0\u01a1ng t\u1ef1<\/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>\u0110\u1ea7u ra r\u01a1le k\u00e9p (B\u1eacT\/T\u1eaeT); AC 240V\/3A<\/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; \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i <95%RH (non-condensing)<\/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>DC 24V; \u0111i\u1ec7n xoay chi\u1ec1u 110V; AC220V<\/td>\n<\/tr>\n<tr>\n<td>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng<\/td>\n<td><3W<\/td>\n<\/tr>\n<tr>\n<td>M\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7<\/td>\n<td>IP65 (c\u00f3 n\u1eafp l\u01b0ng)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc<\/td>\n<td>96mmx96mmx105mm(HxWxD)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc l\u1ed7<\/td>\n<td>91mmx91mm(CxR)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p><\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"conductivity meter calibration\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/tQ9yGIYhMDU?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>T\u00f3m l\u1ea1i, hi\u1ec7u chu\u1ea9n m\u00e1y \u0111o pH l\u00e0 m\u1ed9t quy tr\u00ecnh \u0111\u01a1n gi\u1ea3n nh\u01b0ng c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a ph\u00e9p \u0111o c\u1ee7a b\u1ea1n. B\u1eb1ng c\u00e1ch l\u00e0m theo c\u00e1c k\u1ef9 thu\u1eadt th\u00edch h\u1ee3p \u0111\u01b0\u1ee3c n\u00eau trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 tin hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o pH v\u00e0 thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c trong c\u00f4ng vi\u1ec7c trong ph\u00f2ng th\u00ed nghi\u1ec7m c\u1ee7a m\u00ecnh. H\u00e3y nh\u1edb s\u1eed d\u1ee5ng c\u00e1c dung d\u1ecbch hi\u1ec7u chu\u1ea9n c\u00f3 gi\u00e1 tr\u1ecb pH \u0111\u00e3 bi\u1ebft, r\u1eeda s\u1ea1ch \u0111i\u1ec7n c\u1ef1c gi\u1eefa c\u00e1c l\u1ea7n hi\u1ec7u chu\u1ea9n v\u00e0 hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chimaytech.net\/wp-content\/uploads\/2023\/11\/CL-9500-Water-Quality-Test-Residual-Chlorine-Controller4.png\" alt=\"alt-2512\" class=\"wp-image-2512\" id=\"i2512\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>K\u1ef9 thu\u1eadt hi\u1ec7u ch\u1ec9nh m\u00e1y \u0111o pH \u0111\u00fang c\u00e1ch M\u00e1y \u0111o pH l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai l\u00e0m vi\u1ec7c trong m\u00f4i tr\u01b0\u1eddng ph\u00f2ng th\u00ed nghi\u1ec7m, v\u00ec n\u00f3 cho ph\u00e9p \u0111o ch\u00ednh x\u00e1c \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m c\u1ee7a dung d\u1ecbch. Tuy nhi\u00ean, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a&#8230;<\/p>\n","protected":false},"author":1,"featured_media":19987,"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":[203481,87669,203661],"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\/26682"}],"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=26682"}],"version-history":[{"count":16,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/26682\/revisions"}],"predecessor-version":[{"id":27056,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/26682\/revisions\/27056"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media\/19987"}],"wp:attachment":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media?parent=26682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/categories?post=26682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/tags?post=26682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}