霍尼韋爾變送器現貨

變(bian)送(song)(song)(song)器(qi)(qi)(transmitter)是把傳(chuan)感(gan)器(qi)(qi)的輸(shu)出信號(hao)轉變(bian)為可被控(kong)(kong)制(zhi)器(qi)(qi)識別的信號(hao)(或將傳(chuan)感(gan)器(qi)(qi)輸(shu)入(ru)的非電(dian)量(liang)轉換成電(dian)信號(hao)同(tong)時放大以便供遠(yuan)方測量(liang)和(he)控(kong)(kong)制(zhi)的信號(hao)源)的轉換器(qi)(qi)。傳(chuan)感(gan)器(qi)(qi)和(he)變(bian)送(song)(song)(song)器(qi)(qi)同(tong)構成自動控(kong)(kong)制(zhi)的監測信號(hao)源。同(tong)的物理(li)量(liang)需要同(tong)的傳(chuan)感(gan)器(qi)(qi)和(he)相應的變(bian)送(song)(song)(song)器(qi)(qi)。變(bian)送(song)(song)(song)器(qi)(qi)的種類很多，用在工控(kong)(kong)儀表上面的變(bian)送(song)(song)(song)器(qi)(qi)主要有溫度變(bian)送(song)(song)(song)器(qi)(qi)、壓力變(bian)送(song)(song)(song)器(qi)(qi)、流(liu)(liu)量(liang)變(bian)送(song)(song)(song)器(qi)(qi)、電(dian)流(liu)(liu)變(bian)送(song)(song)(song)器(qi)(qi)、電(dian)壓變(bian)送(song)(song)(song)器(qi)(qi)等(deng)等(deng)。

霍尼韋爾變送器現貨

保護功(gong)能

1、輸 變(bian)送(song)器（圖(tu)2）入過載保護；

2、輸出過(guo)流限制(zhi)保護(hu)；

3、輸出(chu)電流長時(shi)間短路保護；

4、兩線制(zhi)端口瞬(shun)態感應雷與浪(lang)涌電流TVS抑制(zhi)保(bao)護；

5、工作電源過壓(ya)限保護≤35V；

6、工(gong)作電源反接保(bao)護。

原理(li)

變(bian)送(song)器是(shi)中文(wen)名字，英(ying)文(wen)是(shi)：TRANSMITTER

顧名思義，變(bian)送器含有“變(bian)"和“送"之意(yi)。

所謂“變"，是指將各種(zhong)從(cong)傳感器來的物理(li)量，轉(zhuan)變為種(zhong)電(dian)信(xin)(xin)號。比(bi)如：利(li)用(yong)熱電(dian)偶，將溫(wen)度轉(zhuan)變為電(dian)勢；利(li)用(yong)電(dian)流(liu)(liu)互感器，將大電(dian)流(liu)(liu)轉(zhuan)換為小電(dian)流(liu)(liu)。由于電(dian)信(xin)(xin)號容易(yi)處理(li)，所以，現代變送器，均將各種(zhong)物理(li)信(xin)(xin)號，轉(zhuan)變成電(dian)信(xin)(xin)號。因此，我們(men)說的變送器，通常都變成了“電(dian)"。

所謂(wei)“送"，是(shi)指將(jiang)各種(zhong)已變成的電信號(hao)，為了便于其他儀表(biao)或控制裝置(zhi)接(jie)收和傳送，又(you)次通(tong)過(guo)電子(zi)線路(lu)，將(jiang)傳感器(qi)(qi)來(lai)的電信號(hao)，統化（比(bi)如4-20MA）。方法是(shi)通(tong)過(guo)多(duo)個運算放大器(qi)(qi)來(lai)實現(xian)(xian)。這(zhe)種(zhong)“變"+“送"，就組成了現(xian)(xian)代(dai)zui常用的變送器(qi)(qi)。

比如：SST3-AD 就是(shi)種將電流互感器的輸出電流，轉變成標準(zhun)的4-20MA的電流變送器；再比如：SST4-LD，可以將重(zhong)量(liang)傳感器來的重(zhong)量(liang)信號，轉變成標準(zhun)的4-20MA的重(zhong)量(liang)變送器。[1]