簡要描述:帶溫度(du)(du)變(bian)送器(qi)熱(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)/熱(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)阻又(you)稱(cheng)一(yi)體(ti)(ti)化(hua)熱(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)/熱(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)阻,一(yi)體(ti)(ti)化(hua)熱(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)/熱(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)阻是指在熱(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)偶(ou)或熱(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)阻的防水或隔爆(bao)接(jie)線(xian)盒內裝入放大變(bian)送模塊(即溫度(du)(du)變(bian)送器(qi)),與傳(chuan)感(gan)器(qi)連(lian)接(jie)形成一(yi)體(ti)(ti)化(hua),輸出(chu)標準(zhun)4-20mA 電(dian)(dian)(dian)(dian)(dian)流信號或也(ye)可以輸出(chu)0-5V或1-5V的電(dian)(dian)(dian)(dian)(dian)壓信號。通常和(he)顯示儀表(biao)、記錄儀表(biao)、電(dian)(dian)(dian)(dian)(dian)子計算機等配套用,直(zhi)接(jie)測(ce)量各種生(sheng)產過程中的0度(du)(du)-1300度(du)(du)范圍內的液體(ti)(ti)、蒸(zheng)汽和(he)氣體(ti)(ti)介質以及固體(ti)(ti)表(biao)面(mian)溫度(du)(du)。
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帶溫度變送器防爆熱電偶(阻)--無固定裝置無顯示熱電偶(阻)
一、行業應用:
通常和顯示儀表、記錄儀表、電子計算機等配套用,輸出4~20mA。直接測量生產現場(chang)存在碳氯化合物等爆炸物的-200~1300℃范圍內液體、蒸汽和氣體介質及固體表面測溫。
二、產品特點:
1、二線制輸出4~20mA,抗干擾能力強;
2、節省補償導線及安裝溫度變送器費用;
3、安全可靠,使用壽命長;
4、冷鍛溫度自動補償,非線性校正電阻;
三、工作原理:
熱電偶的電極由兩根不同導體材質組成。當測量端與參比端存在溫(wen)差對,就會產生(sheng)熱(re)電勢,工(gong)作儀(yi)表便(bian)顯(xian)示出熱(re)電勢所(suo)對應(ying)的溫(wen)度差。
電阻是利用物質在溫度變化時,其電阻也隨著發生變化的特征來測量溫度的,當阻值(zhi)(zhi)變化時,工作儀表便(bian)顯示(shi)出阻值(zhi)(zhi)所(suo)對(dui)應的溫度值(zhi)(zhi)。
四、技術參數:
產品執行標準:IEC584、IEC751、JB/T5518-1991、JB/T7391-1994。
四、產品選型:
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