{"id":18531,"date":"2024-01-29T11:37:43","date_gmt":"2024-01-29T04:37:43","guid":{"rendered":"https:\/\/vn-tech.com.vn\/?p=18531"},"modified":"2024-01-29T11:37:43","modified_gmt":"2024-01-29T04:37:43","slug":"coc-do-nhiet-do-pt100-dau-ra-analog","status":"publish","type":"post","link":"https:\/\/vn-tech.com.vn\/?p=18531","title":{"rendered":"C\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100 \u0111\u1ea7u ra analog"},"content":{"rendered":"<p>Vi\u1ec7c s\u1eed d\u1ee5ng c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 hi\u1ec7n nay \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00e1 nhi\u1ec1u trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p \u0111\u1ec3 thay th\u1ebf cho c\u00e1c ph\u01b0\u01a1ng th\u1ee9c gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 th\u1ee7 c\u00f4ng l\u00fac tr\u01b0\u1edbc. V\u00e0 \u0111\u1ed1i v\u1edbi c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9, c\u0169ng c\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i: lo\u1ea1i \u0111\u1ea7u d\u00f2, lo\u1ea1i d\u00e2y, lo\u1ea1i que,\u2026V\u00e0 trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd c\u00f9ng nhau t\u00ecm hi\u1ec3u v\u1ec1 c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100 lo\u1ea1i \u0111\u1ea7u d\u00f2 v\u00e0 lo\u1ea1i d\u00e2y. T\u00f9y v\u00e0o m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng, ch\u00fang ta s\u1ebd ch\u1ecdn lo\u1ea1i t\u01b0\u01a1ng \u1ee9ng<\/p>\n<h1><span id=\"Coc_do_nhiet_do_PT100_la_gi\"><span id=\"Cam_bien_nhiet_do_pt100_la_gi\">C\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100 l\u00e0 g\u00ec?<\/span><\/span><\/h1>\n<p>C\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100 l\u00e0 m\u1ed9t lo\u1ea1i<a href=\"https:\/\/congnghiephoa.com.vn\/cam-bien-nhiet-do-pt100\/\" target=\"_blank\" rel=\"noopener\">c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9\u00a0<\/a>c\u00f3 s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao. PT100 ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean thay \u0111\u1ed5i \u0111i\u1ec7n tr\u1edf c\u1ee7a v\u1eadt li\u1ec7u d\u1eabn \u0111i\u1ec7n khi nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i.<\/p>\n<p>\u0110\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn PT100 sang t\u00edn hi\u1ec7u analog, b\u1ea1n c\u1ea7n s\u1eed d\u1ee5ng m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC (Analog-to-Digital Converter). Quy tr\u00ecnh n\u00e0y gi\u00fap chuy\u1ec3n \u0111\u1ed5i gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf c\u1ee7a PT100 th\u00e0nh t\u00edn hi\u1ec7u s\u1ed1 c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c b\u1edfi c\u00e1c vi \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c vi x\u1eed l\u00fd.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3228 size-medium\" src=\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2024\/01\/Automotive-Banner-Landscape-711x400.png\" sizes=\"(max-width: 711px) 100vw, 711px\" srcset=\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2024\/01\/Automotive-Banner-Landscape-711x400.png 711w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2024\/01\/Automotive-Banner-Landscape-768x432.png 768w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2024\/01\/Automotive-Banner-Landscape-600x338.png 600w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2024\/01\/Automotive-Banner-Landscape.png 800w\" alt=\"c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9\" width=\"711\" height=\"400\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t h\u01b0\u1edbng d\u1eabn t\u1ed5ng quan v\u1ec1 c\u00e1ch k\u1ebft n\u1ed1i c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100 v\u1edbi m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC th\u00f4ng qua giao di\u1ec7n analog:<\/p>\n<ol>\n<li><strong>K\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn PT100:<\/strong>\n<ul>\n<li>Ch\u00e2n 1 v\u00e0 ch\u00e2n 3 c\u1ee7a PT100 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi ngu\u1ed3n c\u1ea5p \u0111i\u1ec7n DC (v\u00ed d\u1ee5: 5V).<\/li>\n<li>Ch\u00e2n 2 c\u1ee7a PT100 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi ch\u00e2n GND (\u0111\u1ea5t).<\/li>\n<\/ul>\n<\/li>\n<li><strong>K\u1ebft n\u1ed1i v\u1edbi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC:<\/strong>\n<ul>\n<li>Ch\u00e2n 1 c\u1ee7a PT100 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi ch\u00e2n A0 (ho\u1eb7c ch\u00e2n analog t\u01b0\u01a1ng \u1ee9ng) c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC.<\/li>\n<li>Ch\u00e2n GND c\u1ee7a PT100 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi ch\u00e2n GND c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Ngu\u1ed3n c\u1ea5p \u0111i\u1ec7n cho b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC:<\/strong>\n<ul>\n<li>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC c\u1ea7n \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n (v\u00ed d\u1ee5: 5V) v\u00e0 ch\u00e2n GND c\u1ee7a n\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi ch\u00e2n GND c\u1ee7a PT100.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Ch\u01b0\u01a1ng tr\u00ecnh vi \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c vi x\u1eed l\u00fd:<\/strong>\n<ul>\n<li>B\u1ea1n c\u1ea7n l\u1eadp tr\u00ecnh vi \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c vi x\u1eed l\u00fd \u0111\u1ec3 \u0111\u1ecdc gi\u00e1 tr\u1ecb analog t\u1eeb b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<figure id=\"attachment_3210\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-3210\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3210\" src=\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2024\/01\/Trang-va-Mau-nhat-Anh-ghep-don-gian-Bai-dang-Facebook-560x400.png\" sizes=\"(max-width: 560px) 100vw, 560px\" srcset=\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2024\/01\/Trang-va-Mau-nhat-Anh-ghep-don-gian-Bai-dang-Facebook-560x400.png 560w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2024\/01\/Trang-va-Mau-nhat-Anh-ghep-don-gian-Bai-dang-Facebook-600x429.png 600w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2024\/01\/Trang-va-Mau-nhat-Anh-ghep-don-gian-Bai-dang-Facebook.png 700w\" alt=\"\" width=\"560\" height=\"400\" \/><figcaption id=\"caption-attachment-3210\" class=\"wp-caption-text\">C\u00e1c lo\u1ea1i c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 TA<\/figcaption><\/figure>\n<h2><span id=\"Ung_dung_cua_coc_do_nhiet_do_PT100\"><span id=\"Ung_dung_cua_cam_bien_nhiet_do_pt100\">\u1ee8ng d\u1ee5ng c\u1ee7a c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100?<\/span><\/span><\/h2>\n<p>Gi\u1ed1ng nh\u01b0 t\u00ean g\u1ecdi, c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 gi\u00e1m s\u00e1t t\u00edn hi\u1ec7u nhi\u1ec7t \u0111\u1ed9 \u1edf m\u1ed9t khu v\u1ef1c trong nh\u00e0 m\u00e1y. T\u00edn hi\u1ec7u output c\u1ee7a c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 sau \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n sang t\u00edn hi\u1ec7u 4-20mA \u0111\u1ec3 \u0111\u01b0a v\u1ec1 PLC x\u1eed l\u00fd ho\u1eb7c hi\u1ec3n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh gi\u00e1m s\u00e1t.<\/p>\n<figure id=\"attachment_2974\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"lazy size-full wp-image-2974 lazy-loaded\" src=\"https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do.png\" sizes=\"(max-width: 596px) 100vw, 596px\" srcset=\"https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do.png 596w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do-510x305.png 510w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do-210x125.png 210w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do-340x203.png 340w\" alt=\"\u1ee8ng d\u1ee5ng c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 pt100\" width=\"596\" height=\"356\" data-lazy-type=\"image\" data-lazy-src=\"https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do.png\" data-lazy-srcset=\"https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do.png 596w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do-510x305.png 510w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do-210x125.png 210w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/08\/bo-hien-thi-tin-hieu-nhiet-do-340x203.png 340w\" data-lazy-sizes=\"(max-width: 596px) 100vw, 596px\" \/><figcaption class=\"wp-caption-text\">\u1ee8ng d\u1ee5ng c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100<\/figcaption><\/figure>\n<h1><span id=\"Cac_loai_coc_do_nhiet_do_PT100_cong_nghiep\"><span id=\"Cac_loai_cam_bien_nhiet_do_pt100_cong_nghiep\">C\u00e1c lo\u1ea1i\u00a0<a href=\"https:\/\/congnghiephoa.com.vn\/cam-bien-nhiet-do-pt100\/\" target=\"_blank\" rel=\"noopener\">c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100<\/a>\u00a0c\u00f4ng nghi\u1ec7p:<\/span><\/span><\/h1>\n<p>Theo h\u00ecnh d\u1ea1ng v\u00e0 d\u1ea3i \u0111o, ta c\u00f3 th\u1ec3 chia c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100 ra th\u00e0nh 2 lo\u1ea1i:<\/p>\n<h2><span id=\"coc_do_nhiet_do_PT100_loai_dau_do\"><span id=\"Cam_bien_nhiet_do_pt100_loai_dau_do\">c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100 lo\u1ea1i \u0111\u1ea7u d\u00f2:<\/span><\/span><\/h2>\n<figure id=\"attachment_1733\" class=\"wp-caption alignnone\" aria-describedby=\"caption-attachment-1733\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1733 size-medium\" src=\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2020\/05\/heinz-ta-topgb11-1-400x400.jpg\" sizes=\"(max-width: 400px) 100vw, 400px\" srcset=\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2020\/05\/heinz-ta-topgb11-1-400x400.jpg 400w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2020\/05\/heinz-ta-topgb11-1-800x800.jpg 800w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2020\/05\/heinz-ta-topgb11-1-280x280.jpg 280w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2020\/05\/heinz-ta-topgb11-1-768x768.jpg 768w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2020\/05\/heinz-ta-topgb11-1-600x600.jpg 600w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2020\/05\/heinz-ta-topgb11-1-100x100.jpg 100w, https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2020\/05\/heinz-ta-topgb11-1.jpg 910w\" alt=\"C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 pt100 lo\u1ea1i \u0111\u1ea7u d\u00f2\" width=\"400\" height=\"400\" \/><figcaption id=\"caption-attachment-1733\" class=\"wp-caption-text\">C\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100 lo\u1ea1i \u0111\u1ea7u d\u00f2<\/figcaption><\/figure>\n<p>L\u00e0 m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 d\u1ea1ng 1 thanh th\u1eb3ng; c\u00f3 ph\u1ea7n \u0111\u1ea7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf to v\u00e0 1 que nh\u1ecf \u0111\u1ec3 ch\u1ecdc v\u00e0o nh\u1eefng ch\u1ed7 c\u1ea7n \u0111o nhi\u1ec7t \u0111\u1ed9.<\/p>\n<p>V\u1edbi d\u1ea3i \u0111o nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn 650oC; c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 d\u1ea1ng \u0111\u1ea7u d\u00f2 \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n \u0111o nhi\u1ec7t \u0111\u1ed9 cao. V\u1edbi thi\u1ebft k\u1ebf ch\u1eafc ch\u1eafn c\u00f9ng v\u1edbi v\u1ecf b\u1ecdc b\u00ean ngo\u00e0i b\u1eb1ng Inox; t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n<h2><span id=\"Coc_do_nhiet_do_pt100_loai_day_do\"><span id=\"Cam_bien_nhiet_do_pt100_loai_day_do\">C\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100 lo\u1ea1i d\u00e2y d\u00f2:<\/span><\/span><\/h2>\n<figure id=\"attachment_2695\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"lazy wp-image-2695 size-medium lazy-loaded\" src=\"https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide-336x320.jpg\" sizes=\"(max-width: 336px) 100vw, 336px\" srcset=\"https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide-336x320.jpg 336w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide-510x486.jpg 510w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide-202x192.jpg 202w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide.jpg 754w\" alt=\"d\u00e2y d\u00f2 c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 pt100\" width=\"336\" height=\"320\" data-lazy-type=\"image\" data-lazy-src=\"https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide-336x320.jpg\" data-lazy-srcset=\"https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide-336x320.jpg 336w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide-510x486.jpg 510w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide-202x192.jpg 202w, https:\/\/cambiendo.vn\/wp-content\/uploads\/2018\/07\/day-do-nhiet-do-pt100-slide.jpg 754w\" data-lazy-sizes=\"(max-width: 336px) 100vw, 336px\" \/><figcaption class=\"wp-caption-text\">d\u00e2y d\u00f2 c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100<\/figcaption><\/figure>\n<p>B\u00ean c\u1ea1nh lo\u1ea1i c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100 lo\u1ea1i \u0111\u1ea7u d\u00f2; ch\u00fang ta c\u00f2n th\u1ea5y c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100 lo\u1ea1i d\u00e2y d\u00f2. \u0110\u00e2y l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 thi\u1ebft k\u1ebf d\u1ea1ng d\u00e2y; 1 \u0111\u1ea7u c\u00f3 \u0111\u00ednh k\u00e8m 1 que c\u1ea3m bi\u1ebfn \u0111\u1ec3 ch\u1ecdc v\u00e0o ch\u1ed7 c\u1ea7n \u0111o; 1 \u0111\u1ea7u s\u1ebd c\u00f3 c\u00e1c d\u00e2y k\u1ebft n\u1ed1i.<\/p>\n<p>V\u1edbi \u0111\u1eb7c t\u00ednh d\u1ec5 u\u1ed1n cong, kh\u00f4ng t\u1ed1n nhi\u1ec1u di\u1ec7n t\u00edch khi l\u1eafp \u0111\u1eb7t; c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100 d\u1ea1ng d\u00e2y d\u00f2 th\u00edch h\u1ee3p d\u00f9ng trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u1ea7n \u0111o nh\u1eefng n\u01a1i c\u00f3 di\u1ec7n t\u00edch ti\u1ebfp x\u00fac nh\u1ecf m\u00e0 lo\u1ea1i \u0111\u1ea7u d\u00f2 kh\u00f4ng \u0111\u01b0a v\u00e0o \u0111\u01b0\u1ee3c.<\/p>\n<h2><span id=\"Cach_chon_coc_do_nhiet_do_chuan\"><span id=\"Cach_chon_cam_bien_nhiet_do_chuan\">C\u00e1ch ch\u1ecdn c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 chu\u1ea9n:<\/span><\/span><\/h2>\n<p>\u0110\u1ec3 ch\u1ecdn mua thi\u1ebft b\u1ecb c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100, ta n\u00ean l\u01b0u \u00fd m\u1ed9t s\u1ed1 \u0111i\u1ec3m sau:<\/p>\n<ul>\n<li>D\u00e3y \u0111o nhi\u1ec7t \u0111\u1ed9 l\u1edbn nh\u1ea5t c\u1ea7n \u0111o l\u00e0 bao nhi\u00eau?\u00a0\u0110i\u1ec1u n\u00e0y l\u00e0 quan tr\u1ecdng nh\u1ea5t v\u00ec s\u1ebd quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n c\u0169ng nh\u01b0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a thi\u1ebft b\u1ecb.\u00a0M\u1ed9t l\u01b0u \u00fd nh\u1ecf l\u00e0 ta n\u00ean ch\u1ecdn \u1ee9ng d\u1ee5ng \u0111o trong d\u00e3y \u0111o ch\u1ec9 b\u1eb1ng 80-85% so v\u1edbi d\u00e3y \u0111o th\u1ef1c t\u1ebf c\u1ee7a s\u1ea3n ph\u1ea9m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n l\u00e2u d\u00e0i cho s\u1ea3n ph\u1ea9m.<\/li>\n<li>\u0110\u01b0\u1eddng k\u00ednh que \u0111o c\u1ee7a c\u1ea3m bi\u1ebfn?<\/li>\n<li>Chi\u1ec1u d\u00e0i c\u1ee7a c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9: c\u00f3 nhi\u1ec1u k\u00edch th\u01b0\u1edbc 50 , 100, 200, 300, 400, \u0111\u1ebfn 1000mm<\/li>\n<li>Ph\u1ea7n k\u1ebft n\u1ed1i l\u00e0 d\u1ea1ng g\u00ec v\u00ec c\u00f3 nhi\u1ec1u lo\u1ea1i : ren 1\/2\u2033 , ren 3\/4 \u201d ,\u2026<\/li>\n<li>C\u00f3 d\u00f9ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i sang 4-20mA hay kh\u00f4ng ?<\/li>\n<li>\u0110o cho m\u00f4i tr\u01b0\u1eddng n\u00e0o; (\u0111\u1ed1i v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng \u0103n m\u00f2n kim lo\u1ea1i th\u00ec n\u00ean d\u00f9ng th\u00eam 1 \u1ed1ng thermowell \u0111\u1ec3 b\u1ea3o v\u1ec7).<\/li>\n<\/ul>\n<h2><span id=\"Chuyen_doi_tin_hieu_Pt100\">Chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u Pt100<\/span><\/h2>\n<h2><span id=\"Bo_chuyen_doi_tin_hieu_coc_do_nhiet_dopt100_ra_analog\"><span id=\"Bo_chuyen_doi_tin_hieu_cam_bien_nhiet_do_pt100_ra_analog\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9<a href=\"https:\/\/congnghiephoa.com.vn\/cam-bien-nhiet-do-pt100\/\" target=\"_blank\" rel=\"noopener\">\u00a0pt100<\/a>\u00a0ra analog<\/span><\/span><\/h2>\n<p>Khi c\u1ea7n chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u output c\u1ee7a c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 pt100 (v\u1edbi t\u00edn hi\u1ec7u output m\u1eb7c \u0111\u1ecbnh l\u00e0 t\u00edn hi\u1ec7u \u0111i\u1ec7n tr\u1edf); ta c\u00f3 th\u1ec3 d\u00f9ng th\u00eam b\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 ra 4-20mA. Th\u00f4ng tin v\u1ec1 s\u1ea3n ph\u1ea9m n\u00e0y c\u00f3 th\u1ec3 tham kh\u1ea3o theo \u0111\u01b0\u1eddng link:<\/p>\n<h1><span id=\"Ket_luan\">K\u1ebft lu\u1eadn<\/span><\/h1>\n<div>\n<p><strong>VNTECH GROUP<\/strong>\u00a0cung c\u1ea5p c\u00e1c thi\u1ebft b\u1ecb c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100 c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p v\u1edbi ti\u00eau chu\u1ea9n ch\u00e2u \u00e2u cho \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 ch\u1ebf \u0111\u1ed9 b\u1ea3o h\u00e0nh l\u00ean \u0111\u1ebfn 5 n\u0103m cho Qu\u00fd kh\u00e1ch h\u00e0ng c\u00f3 th\u1ec3 y\u00ean t\u00e2m s\u1eed d\u1ee5ng l\u00e2u d\u00e0i.<\/p>\n<p>V\u1edbi c\u00e1c nhu c\u1ea7u \u0111\u00f3 ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c thi\u1ebft b\u1ecb c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9<a href=\"https:\/\/congnghiephoa.com.vn\/cam-bien-nhiet-do-pt100\/\" target=\"_blank\" rel=\"noopener\">\u00a0Pt100<\/a>\u00a0c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p v\u1edbi ti\u00eau chu\u1ea9n ch\u00e2u \u00e2u cho \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 ch\u1ebf \u0111\u1ed9 b\u1ea3o h\u00e0nh l\u00ean \u0111\u1ebfn 5 n\u0103m cho Qu\u00fd kh\u00e1ch h\u00e0ng c\u00f3 th\u1ec3 y\u00ean t\u00e2m s\u1eed d\u1ee5ng l\u00e2u d\u00e0i.<\/p>\n<p>V\u1edbi kim ch\u1ec9 nam l\u00e0 lu\u00f4n mang l\u1ea1i nh\u1eefng s\u1ea3n ph\u1ea9m t\u1ed1t nh\u1ea5t \u0111\u1ebfn v\u1edbi kh\u00e1ch h\u00e0ng, VN TECH Group \u0111\u00e3 v\u00e0 \u0111ang l\u1eafng nghe v\u00e0 th\u1ea5u hi\u1ec3u t\u00e2m l\u00fd c\u0169ng nh\u01b0 nhu c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng\u00a0 H\u1ed7 tr\u1ee3 l\u1eafp \u0111\u1eb7t v\u00e0 \u0111\u01b0a ra gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u nh\u1ea5t l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng khi h\u1ee3p t\u00e1c v\u1edbi VN TECH c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n<h2><span id=\"Lien_he\"><strong>Li\u00ean h\u1ec7<\/strong><\/span><\/h2>\n<p>Hi\u1ec7n t\u1ea1i s\u1ea3n ph\u1ea9m PT100 \u0111\u01b0\u1ee3c VN TECH l\u00e0 \u0111\u01a1n v\u1ecb \u0111\u1ed9c quy\u1ec1n \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i s\u1ea3n ph\u1ea9m \u1edf Vi\u1ec7t Nam. H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 v\u00e0 c\u00f3 gi\u00e1 th\u00e0nh t\u1ed1t nh\u1ea5t.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2023\/04\/ta-1536x1034-1-1188x800.jpg\" alt=\"Ch\u1ee9ng nh\u1eadn \u0111\u1ea1i di\u1ec7n\" width=\"678\" height=\"457\" \/><\/p>\n<p><strong>VN TECH GROUP<\/strong>\u00a0lu\u00f4n t\u00e2m ni\u1ec7m s\u1ef1 h\u00e0i l\u00f2ng c\u1ee7a kh\u00e1ch h\u00e0ng l\u00e0 m\u1ee5c ti\u00eau quan tr\u1ecdng. Ch\u00fang t\u00f4i cam k\u1ebft \u0111em l\u1ea1i nh\u1eefng s\u1ea3n ph\u1ea9m v\u00e0 d\u1ecbch v\u1ee5 v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t cho Qu\u00fd kh\u00e1ch h\u00e0ng.<\/p>\n<p>H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 c\u00f3 gi\u1ea3i ph\u00e1p t\u1ed1t nh\u1ea5t cho y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n c\u00f9ng v\u1edbi gi\u00e1 c\u1ea3 c\u1ea1nh tranh nh\u1ea5t th\u1ecb tr\u01b0\u1eddng<\/p>\n<p><strong>Xem th\u00eam:<\/strong><\/p>\n<p class=\"mb-2\"><a href=\"https:\/\/vntechgroup.com.vn\/cam-bien-do-muc-lien-tuc-4-20-ma\/\" target=\"_blank\" rel=\"noopener\">C\u1ea3m bi\u1ebfn \u0111o m\u1ee9c li\u00ean t\u1ee5c 4-20 mA<\/a><\/p>\n<p><a href=\"https:\/\/congnghiephoa.com.vn\/bo-chuyen-doi-tin-hieu\/\" target=\"_blank\" rel=\"noopener\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u\u00a0<\/a><\/p>\n<p><a href=\"https:\/\/vntechgroup.com.vn\/gioi-thieu-bo-pr-3202-bo-cach-ly-xung-bo-khuech-dai-cong-tac\/\" target=\"_blank\" rel=\"noopener\">S\u1ea3n ph\u1ea9m m\u1edbi PR Electronics<\/a><\/p>\n<p><a href=\"https:\/\/vn-tech.com.vn\/bo-chuyen-doi-tin-hieu-da-nang-pr4116.html\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111a n\u0103ng PR4116<\/a><\/p>\n<p><a href=\"https:\/\/vn-tech.com.vn\/10-cau-hoi-man-hinh-hien-thi-tin-hieu-pr-4511.html\">10 c\u00e2u h\u1ecfi \u0111\u00e1p v\u1ec1 m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb t\u00edn hi\u1ec7u PR 4511<\/a><\/p>\n<p><a href=\"https:\/\/vn-tech.com.vn\/bo-chuyen-doi-tin-hieu-xung-da-nang-pr-4225.html\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u xung \u0111a n\u0103ng PR 4225<\/a><\/p>\n<div class=\"meta-box\">\n<div class=\"cats\">\n<section class=\"elementor-section elementor-top-section elementor-element elementor-element-408f724 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"408f724\" data-element_type=\"section\">\n<div class=\"elementor-container elementor-column-gap-default\">\n<div class=\"elementor-row\">\n<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-258388a6\" data-id=\"258388a6\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n<div class=\"elementor-column-wrap elementor-element-populated\">\n<div class=\"elementor-widget-wrap\">\n<div class=\"elementor-element elementor-element-6f2ebe96 elementor-widget elementor-widget-theme-post-content\" data-id=\"6f2ebe96\" data-element_type=\"widget\" data-widget_type=\"theme-post-content.default\">\n<div class=\"elementor-widget-container\">\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2013<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<div dir=\"auto\"><strong>VNTECH GROUP \u2013 Your Partner For Automation, Instrumentation &amp; Industrial Valves<\/strong><\/div>\n<div dir=\"auto\">C\u00f4ng Ty Thi\u1ebft B\u1ecb C\u00f4ng Nghi\u1ec7p Vi\u1ec7t Nh\u1eadt<\/div>\n<div dir=\"auto\">Hotline: 0918 113 733<\/div>\n<div dir=\"auto\">Email: info@vntechgroup.com.vn<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c s\u1eed d\u1ee5ng c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 hi\u1ec7n nay \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00e1 nhi\u1ec1u trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p \u0111\u1ec3 thay th\u1ebf cho c\u00e1c ph\u01b0\u01a1ng th\u1ee9c gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 th\u1ee7 c\u00f4ng l\u00fac tr\u01b0\u1edbc. V\u00e0 \u0111\u1ed1i v\u1edbi c\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9, c\u0169ng c\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i: lo\u1ea1i \u0111\u1ea7u d\u00f2, lo\u1ea1i d\u00e2y, lo\u1ea1i que,\u2026V\u00e0 trong &#8230; <a title=\"C\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100 \u0111\u1ea7u ra analog\" class=\"read-more\" href=\"https:\/\/vn-tech.com.vn\/?p=18531\" aria-label=\"More on C\u1ecdc d\u00f2 nhi\u1ec7t \u0111\u1ed9 PT100 \u0111\u1ea7u ra analog\">\u0110\u1ecdc ti\u1ebfp<\/a><\/p>\n","protected":false},"author":9,"featured_media":18532,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[229],"tags":[],"class_list":["post-18531","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"lang":"vi","translations":{"vi":18531},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/posts\/18531"}],"collection":[{"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18531"}],"version-history":[{"count":1,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/posts\/18531\/revisions"}],"predecessor-version":[{"id":18533,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/posts\/18531\/revisions\/18533"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/media\/18532"}],"wp:attachment":[{"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}