多欽儀表電磁流量計常見故障以及解除方法

多欽儀表（上海）有限公司專注於流量計與服務   技術之窗

dianciliuliangjizaishiyongguochengzhonghuifashengyixiemaobingyingxiangwaibiaodezhengchangzuoye，ruanzaimaobingdebeimianxunmifashengdeyinsushiyixiangfeichangzhongyaodezuoye，zanmenjiuxuyaotongguogezhongbutongleixingdezhakanbanfalaijiayibianren
，yibanzhuangkuangxia，zanmenguanyudianciliuliangjiguanlizhakan
，yibanbaohandianjichumodianzu，dianjidejihuadianya，xinhaodianlanjiaorao，cedingyouwujiedidianweiheguandaozasandianliuliuxiangwugefangmian，zhewugefangmianjinenggoudandujinxing，benlaiyebiciguanlian，renheyixiangyaosudegaibiandouyoukenengdaozhiqitafangaibian，zheyidiantishiwomenzaizhakanshitebieyaoyuyizhuyi：

  一
、電(dian)極(ji)觸(chu)摸(mo)電(dian)阻(zu)丈(zhang)量(liang)丈(zhang)量(liang)，電(dian)極(ji)與(yu)液(ye)體(ti)觸(chu)摸(mo)電(dian)阻(zu)值(zhi)，能(neng)夠(gou)不(bu)從(cong)管(guan)道(dao)卸(xie)下(xia)流(liu)量(liang)傳(chuan)感(gan)器(qi)而(er)直(zhi)接(jie)估(gu)汁(zhi)電(dian)極(ji)和(he)襯(chen)裏(li)層(ceng)外(wai)表(biao)大(da)體(ti)狀(zhuang)況(kuang)，有(you)助(zhu)於(yu)剖(pou)析(xi)毛(mao)病(bing)因(yin)素(su)。

  zhangliangdianjiyuyetichumodianzuzhi，nenggoubucongguandaoxiexialiuliangchuanganqierzhijiepinggudianjihechenlicengwaibiaodatizhuangkuang
，youzhuyupouximaobingyinsu。tebiegeidakoujingdianciliuliangjidezhakandailaijidabianli。zhezhongbanfakeguliangliuliangchuanganqizhangliangguanneiwaibiaozhuangkuangrudianjihechenlicengshibushiyouduijiceng，duijicengshidaodianxingzhiderengshijueyuanxingzhide，dianjiwaibiaowuranzhuangkuangdeng。

  二

、電dian極ji的de極ji化hua電dian壓ya丈zhang量liang電dian極ji與yu液ye體ti間jian極ji化hua電dian壓ya將jiang有you助zhu於yu判pan別bie零ling點dian不bu穩wen或huo輸shu出chu晃huang動dong的de毛mao病bing是shi不bu是shi因yin為wei電dian極ji被bei汙wu染ran或huo掩yan蓋gai所suo導dao致zhi的de。用yong數shu字zi式shi萬wan用yong表biao2V直流檔，分別測兩電極與地之間的極化電壓(電磁流量計能夠不停電測，也可停電測)。假如兩次丈量值挨近簡直持平，闡明電極未被汙染或被掩蓋，否則闡明電極被汙染或被掩蓋。極化電壓巨細決定於電極材料的"電極電位"和液體的性質
，丈量值可能在幾mV至幾百mVzhijian。yinweishijishangyunxingzhongliangdianjibeiwuranzhuangkuangbukenengwanquanxiangtongduicheng，yushiliangdianjishangdedianyaxingchenglebuduichengdegongmodianya。buduichengdegongmodianyajiubianchengchamoxinhao，xingchenglingdianpianyi。

  三
、信xin號hao電dian纜lan攪jiao擾rao的de測ce定ding信xin號hao電dian纜lan受shou外wai界jie靜jing電dian感gan應ying和he電dian磁ci感gan應ying攪jiao擾rao會hui使shi電dian磁ci流liu量liang計ji零ling點dian改gai變bian。為wei判pan別bie零ling點dian改gai變bian是shi不bu是shi因yin為wei受shou信xin號hao電dian纜lan攪jiao擾rao電dian勢shi影ying響xiang，需xu測ce定ding攪jiao擾rao大da體ti規gui模mo和he對dui電dian磁ci流liu量liang計ji的de影ying響xiang程cheng度du。

  四
、測定有無接地電位電磁流量汁在正常使用過程中，如傳感器鄰近電(力)機狀況改變(如漏電)，接地電位會發生改變而導致零點改變。查看是不是有這方麵影響，可將轉換器作業接地C端子與維護接地G端子短路
，以零點(或指示值)改變判別有否接地電位。

  五
、guandaozasandianliuliuxiangpanbieyoushihouweixunmiguandaozasandejiaoraoyuanzailiuliangchuanganqishangyouhaizuzaixialiu

，yijianxiaozhazhaoguimo

，shefajianxiaohuoxiaochuzasandianliujiaoraoyingxiang。