久久精品国产99久久6_无遮挡高潮国产免费观看_精品一区二区三区自拍图片区_凹厕所XXXXBBBB偷拍视频

SBWR-2470sd/24KD防爆(bao)變(bian)(bian)送(song)器(qi) SBWR熱(re)電(dian)偶(ou)(ou)溫度(du)變(bian)(bian)送(song)器(qi)、SBWZ熱(re)電(dian)阻溫度(du)變(bian)(bian)送(song)器(qi)是DDZ-S系列儀表中(zhong)的(de)現場(chang)安裝式溫度(du)變(bian)(bian)送(song)單元。它采用(yong)二線(xian)傳(chuan)送(song)方式（兩根導線(xian)作為電(dian)源輸(shu)入，信(xin)(xin)號(hao)輸(shu)出的(de)公用(yong)傳(chuan)輸(shu)線(xian)）。將熱(re)電(dian)偶(ou)(ou)、熱(re)電(dian)阻信(xin)(xin)號(hao)變(bian)(bian)換成(cheng)輸(shu)入電(dian)信(xin)(xin)號(hao)或被測溫度(du)或成(cheng)線(xian)性(xing)的(de)4～20mA的(de)輸(shu)出信(xin)(xin)號(hao)，變(bian)(bian)送(song)器(qi)可(ke)以(yi)安裝于(yu)熱(re)電(dian)偶(ou)(ou)、熱(re)電(dian)阻的(de)接線(xian)盒(he)內與之形(xing)成(cheng)一體化結構。