{"id":12507,"date":"2024-04-22T10:49:08","date_gmt":"2024-04-22T02:49:08","guid":{"rendered":"https:\/\/shchimay.com\/?p=12507"},"modified":"2024-04-22T13:22:45","modified_gmt":"2024-04-22T05:22:45","slug":"ph-sensor-for-water","status":"publish","type":"post","link":"https:\/\/shchimay.com\/vi\/ph-sensor-for-water\/","title":{"rendered":"c\u1ea3m bi\u1ebfn ph c\u1ee7a n\u01b0\u1edbc"},"content":{"rendered":"

T\u1ea7m quan tr\u1ecdng c\u1ee7a c\u1ea3m bi\u1ebfn pH trong gi\u00e1m s\u00e1t ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc<\/h1>\n

\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 \u0111\u1ed1i v\u1edbi c\u00e1c ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau nh\u01b0 u\u1ed1ng r\u01b0\u1ee3u, n\u00f4ng nghi\u1ec7p v\u00e0 c\u00e1c quy tr\u00ecnh c\u00f4ng nghi\u1ec7p. Tuy nhi\u00ean, ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec1u ch\u1ea5t \u00f4 nhi\u1ec5m kh\u00e1c nhau, c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng b\u1ea5t l\u1ee3i \u0111\u1ebfn s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi v\u00e0 m\u00f4i tr\u01b0\u1eddng. M\u1ed9t th\u00f4ng s\u1ed1 quan tr\u1ecdng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0 \u0111\u1ed9 pH.<\/p>\n

pH l\u00e0 th\u01b0\u1edbc \u0111o \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m c\u1ee7a dung d\u1ecbch, v\u1edbi ph\u1ea1m vi t\u1eeb 0 \u0111\u1ebfn 14. \u0110\u1ed9 pH b\u1eb1ng 7 \u0111\u01b0\u1ee3c coi l\u00e0 trung t\u00ednh, trong khi gi\u00e1 tr\u1ecb d\u01b0\u1edbi 7 l\u00e0 c\u00f3 t\u00ednh axit v\u00e0 gi\u00e1 tr\u1ecb tr\u00ean 7 c\u00f3 t\u00ednh ki\u1ec1m. \u0110\u1ed9 pH c\u1ee7a n\u01b0\u1edbc c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 h\u00f2a tan c\u1ee7a kho\u00e1ng ch\u1ea5t v\u00e0 ch\u1ea5t dinh d\u01b0\u1ee1ng, s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a sinh v\u1eadt d\u01b0\u1edbi n\u01b0\u1edbc v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh x\u1eed l\u00fd n\u01b0\u1edbc.
\nhttp:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/TU-650-\u4f4e\u91cf\u7a0b\u6d4a\u5ea6-\u663e\u793a\u4e00\u4f53\u5f0f\u5e26. mp4<\/a>
\n\u0110\u1ec3 theo d\u00f5i \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c, c\u1ea3m bi\u1ebfn pH \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y l\u00e0 thi\u1ebft b\u1ecb \u0111o n\u1ed3ng \u0111\u1ed9 ion hydro trong dung d\u1ecbch v\u00e0 chuy\u1ec3n \u0111\u1ed5i n\u00f3 th\u00e0nh gi\u00e1 tr\u1ecb pH. C\u1ea3m bi\u1ebfn pH c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 trong nh\u00e0 m\u00e1y x\u1eed l\u00fd n\u01b0\u1edbc, gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng v\u00e0 ph\u00f2ng th\u00ed nghi\u1ec7m nghi\u00ean c\u1ee9u.<\/p>\n

\"alt-414\"<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Ph\u1ea1m vi \u0111o<\/td>\nPh\u01b0\u01a1ng ph\u00e1p quang ph\u1ed5 N,N-Diethyl-1,4-phenylenediamine (DPD)<\/td>\n<\/tr>\n
M\u00f4 h\u00ecnh<\/td>\nCLA-7112<\/td>\nCLA-7212<\/td>\nCLA-7113<\/td>\nCLA-7213<\/td>\n<\/tr>\n
K\u00eanh \u0111\u1ea7u v\u00e0o<\/td>\nK\u00eanh \u0111\u01a1n<\/td>\nK\u00eanh \u0111\u00f4i<\/td>\nK\u00eanh \u0111\u01a1n<\/td>\nK\u00eanh \u0111\u00f4i<\/td>\n<\/tr>\n
Ph\u1ea1m vi \u0111o<\/td>\nClorin t\u1ef1 do\uff1a(0,0-2,0)mg\/L, t\u00ednh b\u1eb1ng Cl2;<\/td>\nClo t\u1ef1 do:(0,5-10,0)mg\/L, t\u00ednh b\u1eb1ng Cl2;<\/td>\n<\/tr>\n
pH\uff1a\uff080-14\uff09\uff1bNhi\u1ec7t \u0111\u1ed9\uff1a\uff080-100\uff09\u2103<\/td>\n<\/tr>\n
\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\nClor d\u01b0:\u00b110 ph\u1ea7n tr\u0103m ho\u1eb7c \u00b10,05mg\/L(l\u1ea5y gi\u00e1 tr\u1ecb l\u1edbn),T\u00ednh theo Cl2;<\/td>\nClorin t\u1ef1 do:\u00b110 ph\u1ea7n tr\u0103m ho\u1eb7c\u00b10,25mg\/L(l\u1ea5y gi\u00e1 tr\u1ecb l\u1edbn),T\u00ednh theo Cl2;<\/td>\n<\/tr>\n
pH:\u00b10.1pH\uff1bNhi\u1ec7t \u0111\u1ed9\uff1a\u00b10.5\u2103<\/td>\n<\/tr>\n
Th\u1eddi gian \u0111o<\/td>\n\u22642.5 ph\u00fat<\/td>\n<\/tr>\n
Kho\u1ea3ng th\u1eddi gian l\u1ea5y m\u1eabu<\/td>\nC\u00f3 th\u1ec3 \u0111\u1eb7t kho\u1ea3ng th\u1eddi gian (1\uff5e999) ph\u00fat t\u00f9y \u00fd<\/td>\n<\/tr>\n
Chu k\u1ef3 b\u1ea3o tr\u00ec<\/td>\nKhuy\u1ebfn ngh\u1ecb m\u1ed7i th\u00e1ng m\u1ed9t l\u1ea7n (xem ch\u01b0\u01a1ng b\u1ea3o tr\u00ec)<\/td>\n<\/tr>\n
Y\u00eau c\u1ea7u v\u1ec1 m\u00f4i tr\u01b0\u1eddng<\/td>\nPh\u00f2ng th\u00f4ng tho\u00e1ng, kh\u00f4 r\u00e1o, kh\u00f4ng rung l\u1eafc m\u1ea1nh;Nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng khuy\u1ebfn ngh\u1ecb\uff1a\uff0815\uff5e28\uff09\u2103\uff1b\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i\uff1a\u226485% \uff08Kh\u00f4ng ng\u01b0ng t\u1ee5\uff09<\/td>\n<\/tr>\n
D\u00f2ng m\u1eabu n\u01b0\u1edbc<\/td>\n\uff08200-400\uff09 mL\/ph\u00fat<\/td>\n<\/tr>\n
\u00c1p su\u1ea5t \u0111\u1ea7u v\u00e0o<\/td>\n\uff080.1-0.3\uff09 thanh<\/td>\n<\/tr>\n
Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc \u0111\u1ea7u v\u00e0o<\/td>\n\uff080-40\uff09\u2103<\/td>\n<\/tr>\n
Ngu\u1ed3n \u0111i\u1ec7n<\/td>\nAC (100-240)V\uff1b 50\/60Hz<\/td>\n<\/tr>\n
S\u1ee9c m\u1ea1nh<\/td>\n120W<\/td>\n<\/tr>\n
K\u1ebft n\u1ed1i ngu\u1ed3n<\/td>\nD\u00e2y ngu\u1ed3n 3 l\u00f5i c\u00f3 ph\u00edch c\u1eafm \u0111\u01b0\u1ee3c n\u1ed1i v\u00e0o \u1ed5 \u0111i\u1ec7n b\u1eb1ng d\u00e2y n\u1ed1i \u0111\u1ea5t<\/td>\n<\/tr>\n
\u0110\u1ea7u ra d\u1eef li\u1ec7u<\/td>\nRS232\/RS485\/\uff084\uff5e20\uff09mA<\/td>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc<\/td>\nH*W*D\uff1a\uff08800*400*200\uff09mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

M\u1ed9t trong nh\u1eefng l\u1ee3i \u00edch ch\u00ednh c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn pH \u0111\u1ec3 theo d\u00f5i ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ch\u00fang. C\u1ea3m bi\u1ebfn pH c\u00f3 th\u1ec3 cung c\u1ea5p d\u1eef li\u1ec7u theo th\u1eddi gian th\u1ef1c v\u1ec1 \u0111\u1ed9 pH c\u1ee7a n\u01b0\u1edbc, cho ph\u00e9p th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c n\u1ebfu \u0111\u1ed9 pH n\u1eb1m ngo\u00e0i ph\u1ea1m vi mong mu\u1ed1n. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap ng\u0103n ng\u1eeba nh\u1eefng t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c c\u1ee7a n\u01b0\u1edbc c\u00f3 t\u00ednh axit ho\u1eb7c ki\u1ec1m \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi v\u00e0 m\u00f4i tr\u01b0\u1eddng.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
M\u1eabu nh\u1ea1c c\u1ee5<\/td>\nFET-8920<\/td>\n<\/tr>\n
Ph\u1ea1m vi \u0111o<\/td>\nD\u00f2ng ch\u1ea3y t\u1ee9c th\u1eddi<\/td>\n(0~2000)m3\/h<\/td>\n<\/tr>\n
D\u00f2ng t\u00edch l\u0169y<\/td>\n(0~99999999)m3<\/td>\n<\/tr>\n
T\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y<\/td>\n(0,5~5)m\/s<\/td>\n<\/tr>\n
\u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n0,001m3\/h<\/td>\n<\/tr>\n
M\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c<\/td>\nD\u01b0\u1edbi 2,5% RS ho\u1eb7c 0,025m\/s, t\u00f9y theo gi\u00e1 tr\u1ecb n\u00e0o l\u1edbn nh\u1ea5t<\/td>\n<\/tr>\n
\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n v\u00e0 gt;20\u03bcS\/cm<\/td>\n<\/tr>\n
(4~20)\u0111\u1ea7u ra mA<\/td>\nS\u1ed1 l\u01b0\u1ee3ng k\u00eanh<\/td>\nK\u00eanh \u0111\u01a1n<\/td>\n<\/tr>\n
T\u00ednh n\u0103ng k\u1ef9 thu\u1eadt<\/td>\nC\u00e1ch ly, \u0111\u1ea3o ng\u01b0\u1ee3c, \u0111i\u1ec1u ch\u1ec9nh, \u0111\u1ed3ng h\u1ed3 \u0111o\/h\u1ed9p s\u1ed1 v\u00e0 ch\u1ebf \u0111\u1ed9 k\u00e9p<\/td>\n<\/tr>\n
\u0110i\u1ec7n tr\u1edf v\u00f2ng l\u1eb7p<\/td>\n400\u03a9\uff08Max\uff09, DC 24V<\/td>\n<\/tr>\n
\u0110\u1ed9 ch\u00ednh x\u00e1c truy\u1ec1n<\/td>\n\u00b10.1mA<\/td>\n<\/tr>\n
\u0110\u1ea7u ra \u0111i\u1ec1u khi\u1ec3n<\/td>\nS\u1ed1 l\u01b0\u1ee3ng k\u00eanh<\/td>\nK\u00eanh \u0111\u01a1n<\/td>\n<\/tr>\n
Ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n<\/td>\nR\u01a1le quang \u0111i\u1ec7n b\u00e1n d\u1eabn<\/td>\n<\/tr>\n
Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i<\/td>\n50mA\uff08Max\uff09, DC 30V<\/td>\n<\/tr>\n
Ch\u1ebf \u0111\u1ed9 \u0111i\u1ec1u khi\u1ec3n<\/td>\nC\u1ea3nh b\u00e1o gi\u1edbi h\u1ea1n tr\u00ean\/d\u01b0\u1edbi s\u1ed1 l\u01b0\u1ee3ng t\u1ee9c th\u1eddi<\/td>\n<\/tr>\n
\u0110\u1ea7u ra k\u1ef9 thu\u1eadt s\u1ed1<\/td>\nRS485(giao th\u1ee9c MODBUS), \u0111\u1ea7u ra xung1KHz<\/td>\n<\/tr>\n
C\u00f4ng su\u1ea5t l\u00e0m vi\u1ec7c<\/td>\nNgu\u1ed3n \u0111i\u1ec7n<\/td>\nDC 9~28V<\/td>\n<\/tr>\n
ngu\u1ed3n<\/td>\nTi\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng<\/td>\n\u22643.0W<\/td>\n<\/tr>\n
\u3000<\/td>\n\u0110\u01b0\u1eddng k\u00ednh<\/td>\nDN40~DN300(c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh)<\/td>\n<\/tr>\n
M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/td>\nNhi\u1ec7t \u0111\u1ed9:(0~50) v\u00e0 nbsp;\u2103; \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i: v\u00e0 nbsp;\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n
M\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef<\/td>\nNhi\u1ec7t \u0111\u1ed9:(-20~60) v\u00e0 nbsp;\u2103; \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i: v\u00e0 nbsp;\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n
C\u1ea5p b\u1ea3o v\u1ec7<\/td>\nIP65<\/td>\n<\/tr>\n
Ph\u01b0\u01a1ng ph\u00e1p c\u00e0i \u0111\u1eb7t<\/td>\nCh\u00e8n v\u00e0 nbsp;pipeline v\u00e0 nbsp;c\u00e0i \u0111\u1eb7t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

\nC\u1ea3m bi\u1ebfn pH c\u0169ng d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o tr\u00ec. H\u1ea7u h\u1ebft c\u00e1c c\u1ea3m bi\u1ebfn pH \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 ch\u1ed1ng b\u00e1m b\u1ea9n, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 x\u1ea3y ra khi ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m t\u00edch t\u1ee5 tr\u00ean b\u1ec1 m\u1eb7t c\u1ea3m bi\u1ebfn v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a n\u00f3. Hi\u1ec7u chu\u1ea9n v\u00e0 b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean c\u1ea3m bi\u1ebfn pH c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u00fang cung c\u1ea5p c\u00e1c ph\u00e9p \u0111o \u0111\u00e1ng tin c\u1eady v\u00e0 ch\u00ednh x\u00e1c theo th\u1eddi gian.<\/p>\n