雙(shuang)法(fa)蘭(lan)液(ye)位(wei)變(bian)送(song)器(qi)產(chan)品(pin)概(gai)述(shu)
1151/3351DP/GP型(xing)雙(shuang)法(fa)蘭(lan)液(ye)位(wei)變(bian)送(song)器(qi)是(shi)用(yong)於(yu)防(fang)止(zhi)管(guan)道(dao)中(zhong)的(di)介(jie)質(zhi)直(zhi)接(jie)進(jin)入(ru)變(bian)送(song)器(qi)裏(li)的(di)壓(ya)力(li)傳(zhuan)感(gan)器(qi)組(zu)件(jian)，它(ta)與(yu)變(bian)送(song)器(qi)之(zhi)間(jian)是(shi)靠(kao)注(zhu)滿(man)流(liu)體(ti)的(di)毛(mao)細(xi)管(guan)連(lian)接(jie)起(qi)來(lai)的(di)。用(yong)於(yu)測(ce)量(liang)液(ye)體(ti)、氣(qi)體(ti)或(huo)蒸(zheng)汽(qi)的(di)液(ye)位(wei)、流(liu)量(liang)和(hu)壓(ya)力(li)，然(ran)後(hou)將(qiang)其(qi)轉(zhuan)變(bian)成(cheng)4～20mA DC信(xin)號(hao)輸(shu)出(chu)。
    差(chai)壓(ya)/壓(ya)力(li)變(bian)送(song)器(qi)帶(dai)上(shang)遠(yuan)傳(zhuan)密(mi)封(feng)裝(zhuang)置(zhi)後(hou)，就(jiu)成(cheng)為(wei)雙(shuang)法(fa)蘭(lan)液(ye)位(wei)變(bian)送(song)器(qi)，它(ta)仍(reng)具(ju)有(you)差(chai)壓(ya)/壓(ya)力(li)變(bian)送(song)器(qi)的(di)各(ge)種(zhong)特(te)點(dian)。可(ke)與(yu)HART手(shou)操(cao)器(qi)相(xiang)互(hu)通(tong)訊(xun)，通(tong)過(guo)它(ta)進(jin)行(hang)設(she)定(ding)，監(jian)控(kong)。
    可(ke)避(bi)免(wen)被(bei)測(ce)介(jie)質(zhi)直(zhi)接(jie)和(hu)變(bian)送(song)器(qi)的(di)隔(ge)離(li)膜(mo)片(pian)接(jie)觸(chu)，這(zhe)種(zhong)測(ce)量(liang)方(fang)法(fa)適(kuo)用(yong)於(yu)下(xia)述(shu)幾(ji)種(zhong)情(qing)況(kuang)：
1、被(bei)測(ce)介(jie)質(zhi)對(dui)變(bian)送(song)器(qi)敏(min)感(gan)元(yuan)件(jian)有(you)腐(fu)蝕(shi)作(zuo)用(yong)
2、需(xu)要(yao)將(qiang)高(gao)溫(wen)被(bei)測(ce)介(jie)質(zhi)與(yu)變(bian)送(song)器(qi)隔(ge)離(li)
3、被(bei)測(ce)介(jie)質(zhi)中(zhong)有(you)固(gu)體(ti)懸(xuan)浮(fu)物(wu)或(huo)高(gao)粘(nian)度(duo)介(jie)質(zhi)
4、被(bei)測(ce)介(jie)質(zhi)由(you)引(yin)壓(ya)管(guan)引(yin)同(tong)時(shi)易(yi)固(gu)化(hua)或(huo)結(jie)晶(jing)
5、更(geng)換(huan)被(bei)測(ce)介(jie)質(zhi)需(xu)嚴(yan)格(ge)淨(jing)化(hua)測(ce)量(liang)頭(tou)
6、測(ce)量(liang)頭(tou)必(bi)須(xu)保(bao)持(chi)衛(wei)生(sheng)，嚴(yan)禁(jin)汙(wu)染(ran)。使(shi)用(yong)對(dui)象(xiang)：腐(fu)蝕(shi)性(xing)或(huo)粘(nian)性(xing)的(di)液(ye)體(ti)
注(zhu)意(yi)：真(zhen)空(kong)場(chang)合(ge)不(bu)宜(yi)采(cai)用(yong)遠(yuan)傳(zhuan)變(bian)送(song)器(qi)。
雙(shuang)法(fa)蘭(lan)液(ye)位(wei)變(bian)送(song)器(qi)的(di)遠(yuan)傳(zhuan)裝(zhuang)置(zhi)形(xing)式(shi)有(you)四(si)種(zhong)：
1、1191PFW扁(pian)平(ping)式(shi)遠(yuan)傳(zhuan)裝(zhuang)置(zhi)（標(biao)準(zhun)3″、工(gong)作(zuo)壓(ya)力(li)2.5MPa）
2、1191RTW型(xing)螺(luo)紋(wen)安(an)裝(zhuang)式(shi)遠(yuan)傳(zhuan)裝(zhuang)置(zhi)（大(dai)工(gong)作(zuo)壓(ya)力(li)10MPa）
3、1191RFW型(xing)法(fa)蘭(lan)安(an)裝(zhuang)式(shi)遠(yuan)傳(zhuan)裝(zhuang)置(zhi)
4、1191EFW型(xing)插(cha)入(ru)筒(tong)式(shi)遠(yuan)傳(zhuan)裝(zhuang)置(zhi)（標(biao)準(zhun)3″或(huo)4″，工(gong)作(zuo)壓(ya)力(li)2.5MPa）
◆選(xuan)型(xing)方(fang)式(shi)

液(ye)位(wei)變(bian)送(song)器(qi)係(ji)列(lie)產(chan)品(pin)有(you)：投(tou)入(ru)式(shi)液(ye)位(wei)變(bian)送(song)器(qi)、單(shan)法(fa)蘭(lan)液(ye)位(wei)變(bian)送(song)器(qi)、雙(shuang)法(fa)蘭(lan)液(ye)位(wei)變(bian)送(song)器(qi)、法(fa)蘭(lan)式(shi)陶(tao)瓷(ci)液(ye)位(wei)變(bian)送(song)器(qi)、射(she)頻(pin)電(dian)容(rong)液(ye)位(wei)變(bian)送(song)器(qi)、電(dian)感(gan)式(shi)液(ye)位(wei)變(bian)送(song)器(qi)