{"id":22368,"date":"2024-08-17T08:20:55","date_gmt":"2024-08-17T00:20:55","guid":{"rendered":"https:\/\/chimaytech.net\/?p=22368"},"modified":"2024-08-17T17:08:16","modified_gmt":"2024-08-17T09:08:16","slug":"ph-tester-for-water","status":"publish","type":"post","link":"https:\/\/chimaytech.net\/vi\/ph-tester-for-water\/","title":{"rendered":"m\u00e1y \u0111o \u0111\u1ed9 ph c\u1ee7a n\u01b0\u1edbc"},"content":{"rendered":"<h1 id=\"the-importance-of-using-a-ph-tester-for-water-quality-testing-wpaicgheading\">T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ec3 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc<\/h1>\n<p>\nN\u01b0\u1edbc l\u00e0 ngu\u1ed3n t\u00e0i nguy\u00ean thi\u1ebft y\u1ebfu cho m\u1ecdi sinh v\u1eadt s\u1ed1ng tr\u00ean Tr\u00e1i \u0111\u1ea5t. N\u00f3 r\u1ea5t quan tr\u1ecdng cho s\u1ef1 s\u1ed1ng c\u00f2n c\u1ee7a ch\u00fang ta v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc ch\u00fang ta ti\u00eau th\u1ee5 c\u00f3 th\u1ec3 c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn s\u1ee9c kh\u1ecfe c\u1ee7a ch\u00fang ta. M\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng quy\u1ebft \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0 \u0111\u1ed9 pH. \u0110\u1ed9 pH l\u00e0 th\u01b0\u1edbc \u0111o m\u1ee9c \u0111\u1ed9 axit ho\u1eb7c ki\u1ec1m c\u1ee7a m\u1ed9t ch\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c \u0111o theo thang \u0111i\u1ec3m t\u1eeb 0 \u0111\u1ebfn 14, v\u1edbi 7 l\u00e0 trung t\u00ednh. N\u01b0\u1edbc c\u00f3 \u0111\u1ed9 pH d\u01b0\u1edbi 7 \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f3 t\u00ednh axit, trong khi n\u01b0\u1edbc c\u00f3 \u0111\u1ed9 pH tr\u00ean 7 \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f3 t\u00ednh ki\u1ec1m.<\/p>\n<p>[nh\u00fang]http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/TU-650-\\\u4f4e\\\u91cf\\\u7a0b\\\u6d4a\\\u5ea6-\\\u663e\\\u793a\\\\ u4e00\\\u4f53\\\u5f0f\\\u5e26.mp4[\/embed]<\/p>\n<p>Ki\u1ec3m tra \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc r\u1ea5t quan tr\u1ecdng v\u00ec nhi\u1ec1u l\u00fd do. \u0110\u1ea7u ti\u00ean v\u00e0 quan tr\u1ecdng nh\u1ea5t, \u0111 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u00f9i v\u1ecb v\u00e0 m\u00f9i c\u1ee7a n\u01b0\u1edbc. N\u01b0\u1edbc qu\u00e1 axit ho\u1eb7c qu\u00e1 ki\u1ec1m c\u00f3 th\u1ec3 c\u00f3 v\u1ecb kim lo\u1ea1i ho\u1eb7c v\u1ecb \u0111\u1eafng, c\u00f3 th\u1ec3 kh\u00f4ng h\u1ea5p d\u1eabn khi u\u1ed1ng. Ngo\u00e0i ra, n\u01b0\u1edbc c\u00f3 \u0111\u1ed9 pH kh\u00f4ng ph\u00f9 h\u1ee3p c\u0169ng c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ecfng h\u1ec7 th\u1ed1ng \u1ed1ng n\u01b0\u1edbc v\u00e0 thi\u1ebft b\u1ecb theo th\u1eddi gian. N\u01b0\u1edbc c\u00f3 t\u00ednh axit c\u00f3 th\u1ec3 \u0103n m\u00f2n \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 thi\u1ebft b\u1ecb c\u1ed1 \u0111\u1ecbnh, trong khi n\u01b0\u1edbc ki\u1ec1m c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i c\u1eb7n kho\u00e1ng c\u00f3 th\u1ec3 l\u00e0m t\u1eafc ngh\u1ebdn \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb.<\/p>\n<p>H\u01a1n n\u1eefa, \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh kh\u1eed tr\u00f9ng. C\u00e1c c\u01a1 s\u1edf x\u1eed l\u00fd n\u01b0\u1edbc s\u1eed d\u1ee5ng c\u00e1c h\u00f3a ch\u1ea5t nh\u01b0 clo \u0111\u1ec3 ti\u00eau di\u1ec7t vi khu\u1ea9n v\u00e0 m\u1ea7m b\u1ec7nh c\u00f3 h\u1ea1i trong n\u01b0\u1edbc u\u1ed1ng. Tuy nhi\u00ean, hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00e1c h\u00f3a ch\u1ea5t n\u00e0y c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc. N\u01b0\u1edbc qu\u00e1 axit ho\u1eb7c qu\u00e1 ki\u1ec1m c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 kh\u1eed tr\u00f9ng, khi\u1ebfn n\u01b0\u1edbc d\u1ec5 b\u1ecb \u00f4 nhi\u1ec5m.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chimaytech.net\/wp-content\/uploads\/2023\/11\/BSQ-2019-3.webp\" alt=\"alt-925\" class=\"wp-image-925\" id=\"i925\" \/><\/p>\n<p>\n\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o ngu\u1ed3n n\u01b0\u1edbc ch\u00fang ta ti\u00eau th\u1ee5 l\u00e0 an to\u00e0n v\u00e0 t\u1ed1t cho s\u1ee9c kh\u1ecfe, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra \u0111\u1ed9 pH c\u1ee7a ngu\u1ed3n n\u01b0\u1edbc. M\u1ed9t trong nh\u1eefng c\u00e1ch thu\u1eadn ti\u1ec7n v\u00e0 ch\u00ednh x\u00e1c nh\u1ea5t \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c n\u00e0y l\u00e0 s\u1eed d\u1ee5ng m\u00e1y \u0111o \u0111\u1ed9 pH \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 ki\u1ec3m tra n\u01b0\u1edbc. Nh\u1eefng m\u00e1y ki\u1ec3m tra n\u00e0y r\u1ea5t d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 cung c\u1ea5p k\u1ebft qu\u1ea3 nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c, cho ph\u00e9p b\u1ea1n theo d\u00f5i ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc m\u1ed9t c\u00e1ch th\u01b0\u1eddng xuy\u00ean.<\/p>\n<p>C\u00f3 m\u1ed9t s\u1ed1 lo\u1ea1i m\u00e1y ki\u1ec3m tra \u0111\u1ed9 pH kh\u00e1c nhau hi\u1ec7n c\u00f3 tr\u00ean th\u1ecb tr\u01b0\u1eddng, t\u1eeb c\u00e1c thi\u1ebft b\u1ecb c\u1ea7m tay \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn cao c\u1ea5p h\u01a1n m\u00e1y \u0111o k\u1ef9 thu\u1eadt s\u1ed1. M\u00e1y \u0111o pH c\u1ea7m tay th\u01b0\u1eddng c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn \u0111\u1ec3 s\u1eed d\u1ee5ng t\u1ea1i nh\u00e0. Nh\u1eefng m\u00e1y ki\u1ec3m tra n\u00e0y th\u01b0\u1eddng bao g\u1ed3m m\u1ed9t \u0111\u1ea7u d\u00f2 \u0111\u01b0\u1ee3c nh\u00fang v\u00e0o m\u1eabu n\u01b0\u1edbc v\u00e0 m\u00e0n h\u00ecnh k\u1ef9 thu\u1eadt s\u1ed1 hi\u1ec3n th\u1ecb m\u1ee9c \u0111\u1ed9 pH. M\u1eb7t kh\u00e1c, m\u00e1y \u0111o pH k\u1ef9 thu\u1eadt s\u1ed1 cung c\u1ea5p c\u00e1c ph\u00e9p \u0111o ch\u00ednh x\u00e1c h\u01a1n v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng chuy\u00ean nghi\u1ec7p nh\u01b0 ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 c\u01a1 s\u1edf x\u1eed l\u00fd n\u01b0\u1edbc.<\/p>\n<p>Khi s\u1eed d\u1ee5ng m\u00e1y \u0111o pH \u0111\u1ec3 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i tu\u00e2n th\u1ee7 c\u1ea9n th\u1eadn h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c. B\u1ea1n c\u0169ng n\u00ean hi\u1ec7u ch\u1ec9nh m\u00e1y ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a n\u00f3. Ngo\u00e0i ra, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i ki\u1ec3m tra \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc t\u1ea1i c\u00e1c \u0111i\u1ec3m kh\u00e1c nhau trong h\u1ec7 th\u1ed1ng n\u01b0\u1edbc c\u1ee7a b\u1ea1n, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ea1i ngu\u1ed3n, t\u1ea1i c\u00e1c v\u00f2i kh\u00e1c nhau v\u00e0 sau b\u1ea5t k\u1ef3 quy tr\u00ecnh x\u1eed l\u00fd n\u00e0o, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u01b0\u1edbc v\u1eabn an to\u00e0n \u0111\u1ec3 ti\u00eau d\u00f9ng.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>T\u00ean s\u1ea3n ph\u1ea9m<\/td>\n<td colspan=\"3\">B\u1ed9 \u0111i\u1ec1u khi\u1ec3n m\u00e1y ph\u00e1t pH\/ORP-8500A<\/td>\n<\/tr>\n<tr>\n<td>Th\u00f4ng s\u1ed1 \u0111o<\/td>\n<td>Ph\u1ea1m vi \u0111o<\/td>\n<td>T\u1ef7 l\u1ec7 ph\u00e2n gi\u1ea3i<\/td>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<\/tr>\n<tr>\n<td>pH<\/td>\n<td>0.00\\\uff5e14.00<\/td>\n<td>0.01<\/td>\n<td>\\\u00b10.1<\/td>\n<\/tr>\n<tr>\n<td>ORP<\/td>\n<td>(-1999\\\uff5e+1999)mV<\/td>\n<td>1mV<\/td>\n<td>\\\u00b15mV(\u0110\u1ed3ng h\u1ed3 \u0111i\u1ec7n)<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9<\/td>\n<td>(0.0\\\uff5e100.0)\\\u2103<\/td>\n<td>0,1\\\u2103<\/td>\n<td>\\\u00b10.5\\\u2103<\/td>\n<\/tr>\n<tr>\n<td>Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a dung d\u1ecbch \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m<\/td>\n<td colspan=\"3\">(0.0\\\uff5e100.0)\\\u2103<\/td>\n<\/tr>\n<tr>\n<td>Th\u00e0nh ph\u1ea7n nhi\u1ec7t \u0111\u1ed9<\/td>\n<td colspan=\"3\">Ph\u1ea7n t\u1eed nhi\u1ec7t NTC10K<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">(4~20)mA D\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u ra<\/td>\n<td>S\u1ed1 k\u00eanh<\/td>\n<td colspan=\"2\">2 k\u00eanh<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">\u0110\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt<\/td>\n<td colspan=\"2\">B\u1ecb c\u00f4 l\u1eadp, ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh, \u0111\u1ea3o ng\u01b0\u1ee3c,<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">ch\u1ebf \u0111\u1ed9 k\u00e9p c\u00f3 th\u1ec3 \u0111\u1ecbnh c\u1ea5u h\u00ecnh, thi\u1ebft b\u1ecb \/ truy\u1ec1n<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec7n tr\u1edf v\u00f2ng l\u1eb7p<\/td>\n<td colspan=\"2\">400\\\u03a9(T\u1ed1i \u0111a)\\\uff0cDC 24V<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c truy\u1ec1n<\/td>\n<td colspan=\"2\">\\\u00b10.1mA<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">Ki\u1ec3m so\u00e1t li\u00ean h\u1ec7<\/td>\n<td>K\u00eanh S\u1ed0<\/td>\n<td colspan=\"2\">3 K\u00eanh<\/td>\n<\/tr>\n<tr>\n<td>Ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n<\/td>\n<td colspan=\"2\">C\u00f4ng t\u1eafc quang \u0111i\u1ec7n b\u00e1n d\u1eabn<\/td>\n<\/tr>\n<tr>\n<td>C\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh<\/td>\n<td colspan=\"2\">M\u1ed7i k\u00eanh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh v\u00e0 tr\u1ecf t\u1edbi (nhi\u1ec7t \u0111\u1ed9, pH\/ORP, th\u1eddi gian)<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt<\/td>\n<td colspan=\"2\">C\u00e0i \u0111\u1eb7t tr\u01b0\u1edbc tr\u1ea1ng th\u00e1i\/xung\/\u0111i\u1ec1u ch\u1ec9nh PID th\u01b0\u1eddng m\u1edf\/th\u01b0\u1eddng \u0111\u00f3ng<\/td>\n<\/tr>\n<tr>\n<td>Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i<\/td>\n<td colspan=\"2\">50mA(T\u1ed1i \u0111a)AC\/DC 30V<\/td>\n<\/tr>\n<tr>\n<td>D\u1eef li\u1ec7u\\\u00a0giao ti\u1ebfp<\/td>\n<td colspan=\"3\">Giao th\u1ee9c chu\u1ea9n MODBUS, RS485<\/td>\n<\/tr>\n<tr>\n<td>Ngu\u1ed3n \u0111i\u1ec7n l\u00e0m vi\u1ec7c<\/td>\n<td colspan=\"3\">DC 24V\\\u00b14V<\/td>\n<\/tr>\n<tr>\n<td>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng t\u1ed5ng th\u1ec3<\/td>\n<td colspan=\"3\">5.5W<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/td>\n<td colspan=\"3\">Nhi\u1ec7t \u0111\u1ed9: (0~50) \\\u2103<\/td>\n<\/tr>\n<tr>\n<td colspan=\"3\">\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i: \\\u2264 85% RH (kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">M\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef<\/td>\n<td colspan=\"3\">Nhi\u1ec7t \u0111\u1ed9: (-20~60) \\\u2103<\/td>\n<\/tr>\n<tr>\n<td colspan=\"3\">\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i: \\\u2264 85% 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=\"3\">IP65 (c\u00f3 n\u1eafp l\u01b0ng)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc h\u00ecnh d\u1ea1ng<\/td>\n<td colspan=\"3\">96mm\\\u00d796 mm\\\u00d794mm (H\\\u00d7W\\\u00d7D)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc m\u1edf<\/td>\n<td colspan=\"3\">91mm\\\u00d791mm(H\\\u00d7W)<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ebf \u0111\u1ed9 c\u1ed1 \u0111\u1ecbnh<\/td>\n<td colspan=\"3\">Lo\u1ea1i g\u1eafn b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh nhanh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>\nT\u00f3m l\u1ea1i, ki\u1ec3m tra \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 an to\u00e0n cho n\u01b0\u1edbc u\u1ed1ng c\u1ee7a ch\u00fang ta. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u00e1y \u0111o \u0111\u1ed9 pH \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 ki\u1ec3m tra n\u01b0\u1edbc, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 theo d\u00f5i \u0111\u1ed9 pH c\u1ee7a ngu\u1ed3n n\u01b0\u1edbc v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p th\u00edch h\u1ee3p \u0111\u1ec3 gi\u1ea3i quy\u1ebft m\u1ecdi v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 ph\u00e1t sinh. 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