智能溫度變送模塊SBWR、SBWZ系列熱(re)(re)電偶(ou)、熱(re)(re)電阻(zu)(zu)溫(wen)度(du)變送(song)器是儀表中(zhong)的現場安裝式溫(wen)度(du)變送(song)器單(dan)元，與工(gong)業(ye)熱(re)(re)電偶(ou)、熱(re)(re)電阻(zu)(zu)配套(tao)使(shi)用，它采用二線制傳輸(shu)(shu)方式（兩(liang)根導線作為電源輸(shu)(shu)入和信(xin)(xin)號(hao)輸(shu)(shu)出(chu)的公用傳輸(shu)(shu)線）。將工(gong)業(ye)熱(re)(re)電偶(ou)、熱(re)(re)電阻(zu)(zu)信(xin)(xin)號(hao)轉換(huan)成與輸(shu)(shu)入信(xin)(xin)號(hao)或與溫(wen)度(du)信(xin)(xin)號(hao)成線性的4-20mA、0-10mA的輸(shu)(shu)出(chu)信(xin)(xin)號(hao).

該溫度變送器可直接安裝(zhuang)在熱(re)電(dian)偶、熱(re)電(dian)阻的接線盒內與之形成一體化結構。它作為新一代測溫儀表可廣泛(fan)應(ying)用與冶(ye)金、石油、化工、電(dian)力、輕工、紡織、食品(pin)、國(guo)防以及(ji)科研等工業部門。

二、主要特點：

溫度變送模塊采用硅橡膠或環氧樹脂密封結構，因此耐震、耐濕、適合在惡劣的現場環境安裝使用。

溫度變送器(qi)模塊現場安(an)裝在(zai)熱電偶、熱電阻的(de)(de)接(jie)線盒內(nei)使用，直接(jie)輸出4-20mA、0-10mA的(de)(de)輸出信號。這(zhe)樣既(ji)節約了昂貴的(de)(de)補償(chang)導線費(fei)用，又(you)提高了信號遠距離傳輸過程中(zhong)的(de)(de)抗干擾能力；

溫(wen)度變送(song)器(qi)模(mo)塊熱電偶變送(song)器(qi)具有(you)冷端溫(wen)度自動(dong)補償功能；

溫(wen)度(du)變送器模塊精度(du)高(gao)、功耗(hao)低(di)，使(shi)用環境溫(wen)度(du)范(fan)圍寬，工(gong)作穩(wen)定可靠；

溫度變送(song)器模(mo)塊適用(yong)范圍廣、既可以(yi)與(yu)熱電(dian)偶、熱電(dian)阻(zu)形成一體化現場安(an)(an)裝結構，也可以(yi)作為功能模(mo)塊安(an)(an)裝在檢(jian)測設備中和(he)儀表(biao)盤上使(shi)用(yong)；

溫度變(bian)送(song)器(qi)模塊智能型溫度變(bian)送(song)器(qi)可通過HART調(diao)制解調(diao)器(qi)與(yu)上(shang)位機通訊(xun)或(huo)與(yu)手持器(qi)和PC機對變(bian)送(song)器(qi)的型號、分(fen)度號、量程進行遠程信息管(guan)理、組態、變(bian)量監測、校準(zhun)和維(wei)護功能；

溫度變(bian)送(song)器(qi)模塊智(zhi)能型(xing)溫度變(bian)送(song)器(qi)可按用戶實際需要調整(zheng)變(bian)送(song)器(qi)的顯示(shi)方向，并顯示(shi)變(bian)送(song)器(qi)所測的介質溫度、傳感器(qi)值的變(bian)化、輸出電流(liu)和(he)百分比例；

三、工作原理：　

溫度(du)(du)(du)變(bian)(bian)送(song)器(qi)(qi)(qi)模塊，熱(re)電(dian)(dian)偶或熱(re)電(dian)(dian)阻(zu)傳(chuan)(chuan)感器(qi)(qi)(qi)將被測溫度(du)(du)(du)轉(zhuan)換(huan)成電(dian)(dian)信號(hao)，再將該信號(hao)送(song)入(ru)變(bian)(bian)送(song)器(qi)(qi)(qi)的(de)輸入(ru)網絡，該網絡包含調零(ling)和(he)熱(re)電(dian)(dian)偶補(bu)償等相(xiang)關電(dian)(dian)路。經(jing)調零(ling)后的(de)信號(hao)輸入(ru)到運(yun)算放(fang)大(da)器(qi)(qi)(qi)進行信號(hao)放(fang)大(da)，放(fang)大(da)的(de)信號(hao)一(yi)路經(jing)V/I轉(zhuan)換(huan)器(qi)(qi)(qi)計(ji)算處理后以(yi)4－20mA直流電(dian)(dian)流輸出；另(ling)一(yi)路經(jing)A/D轉(zhuan)換(huan)器(qi)(qi)(qi)處理后到表頭顯(xian)示(shi)。變(bian)(bian)送(song)器(qi)(qi)(qi)的(de)線(xian)(xian)性化(hua)電(dian)(dian)路有兩種，均(jun)采用(yong)(yong)反(fan)饋方式。對(dui)熱(re)電(dian)(dian)阻(zu)傳(chuan)(chuan)感器(qi)(qi)(qi)，用(yong)(yong)正反(fan)饋方式校正，對(dui)熱(re)電(dian)(dian)偶傳(chuan)(chuan)感器(qi)(qi)(qi)，用(yong)(yong)多段折線(xian)(xian)逼近(jin)法(fa)進行校正。一(yi)體(ti)化(hua)數字顯(xian)示(shi)溫度(du)(du)(du)變(bian)(bian)送(song)器(qi)(qi)(qi)有兩種顯(xian)示(shi)方式。LCD顯(xian)示(shi)的(de)溫度(du)(du)(du)變(bian)(bian)送(song)器(qi)(qi)(qi)用(yong)(yong)兩線(xian)(xian)制方式輸出，LED顯(xian)示(shi)的(de)溫度(du)(du)(du)變(bian)(bian)送(song)器(qi)(qi)(qi)用(yong)(yong)三線(xian)(xian)制方式輸出。