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了解(jie)SAMSON定(ding)位器(qi)調(diào)節(jié)閥(fa)的特(te)點(diǎn)(dian)及(ji)校驗(yàn)(yan)步驟(zhou)
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SAMSON定位器(qi)調(diào)節(jié)閥(fa)的特(te)點(diǎn)(dian)及(ji)校驗(yàn)(yan)步驟(zhou) SAMSON定位器(qi)直行程(cheng)調(diào)節(jié)閥(fa)的自(zi)動(dòng)(dong)初始(shi)化調(diào)校首先(xian)按住鍵(jian)5秒以上(shang)進(jìn)(jin)入組(zu)態(tài)菜(cai)單(dan)。雙作(zuo)用(yong)執(zhí)(zhi)行機(jī)(ji)構(gòu)(gou)需要對(duì)定(ding)位器(qi)的放(fang)大器(qi)進(jìn)(jin)行調(diào)整(zheng)。進(jìn)行自(zi)動(dòng)(dong)行程(cheng)校驗(yàn)(yan)。使用(yong) HART375進(jìn)(jin)行通(tong)訊時(shí),接線(xian)時(shí)註意信(xin)號(hào)(hao)發(fā)(fa)生(sheng)器(qi)和HART375同時(shí)接(jie)到(dao) LOOP端子(zi)的“ +” ,“ - ”極(ji)上(shang)。進(jìn)入(ru)儀表 Online (在線(xian))菜(cai)單(dan)將375手操(cao)器(qi)與 定位器(qi)的通(tong)訊線(xian)路連接好(hao),並(bing)給(gei)儀表供電。打(da)開手操(cao)器(qi),雙擊主菜(cai)單(dan),就(jiu)會(huì)(hui)顯(xian)示(shi)儀(yi)表的位號(hào)(hao)與(yu)該(gai) HART儀(yi)表的 Online(在線(xian))菜(cai)單(dan),如(ru)果找(zhao)不(bu)到(dao)儀表,按照(zhao)提示(shi)解(jie)決(jue)問題(ti),然(ran)後重(zhong)新(xin)進(jìn)(jin)HART應(yīng)(ying)用(yong)菜(cai)單(dan)。
SAMSON定位器(qi)直通(tong)雙座(zuo)調(diào)節(jié)閥(fa)的特(te)點(diǎn)(dian)主要有:許(xu)用(yong)壓差大,因(yin)可抵(di)消(xiao)許(xu)多不(bu)平(ping)衡力。DN100的閥(fa)△P為280KPa。流通(tong)能力大。DN100的KV為160。泄(xie)漏(lou)量(liang)大,原(yuan)因(yin)有兩個(gè)閥(fa)芯(xin)不(bu)能(neng)同時(shí)密(mi)封。標(biāo)(biao)準(zhǔn)(zhun)泄(xie)流(liu)量為0.1%KV,為單座(zuo)閥(fa)10的倍。直通(tong)雙座(zuo)調(diào)節(jié)閥(fa)主要應(yīng)用(yong)於(yu)高(gao)壓差,泄(xie)漏(lou)量(liang)要求不(bu)嚴(yán)(yan)的場(chǎng)(chang)合(he)。直行程(cheng)閥(fa)閥(fa)芯(xin)是(shi)垂直節(jié)流(liu),而介(jie)質(zhì)(zhi)是(shi)水平(ping)流進(jìn)流(liu)出(chu),閥(fa)腔(qiang)內(nèi)(nei)流道(dao)必然(ran)轉(zhuǎn)(zhuan)彎倒(dao)拐(guai),使閥(fa)的流(liu)路(lu)變得相(xiang)當(dāng)復(fù)雜(za)。
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