第一種是壓力上去，壓力傳感器輸shu也ye上shang不bu去qu

，先xian應ying檢jian查zha壓ya力li接jie口kou是shi否fou漏lou氣qi或huo者zhe被bei堵du住zhu
，如ru果guo確que認ren不bu是shi
，檢jian查zha接jie線xian方fang式shi和he檢jian查zha電dian源yuan
，如ru電dian源yuan正zheng常chang則ze進jin行xing簡jian單dan加jia壓ya看kan輸shu出chu是shi否fou變bian化hua，或huo者zhe察cha看kan傳chuan感gan器qi零ling位wei是shi否fou有you輸shu出chu，若ruo無wu變bian化hua則ze傳chuan感gan器qi已yi損sun壞huai
，可ke能neng是shi儀yi表biao損sun壞huai或huo者zhe整zheng個ge係xi統tong的de其qi他ta環huan節jie的de問wen題ti;

　　第(di)二(er)種(zhong)是(shi)加(jia)壓(ya)變(bian)送(song)器(qi)輸(shu)出(chu)不(bu)變(bian)化(hua)，再(zai)加(jia)壓(ya)變(bian)送(song)器(qi)輸(shu)出(chu)突(tu)然(ran)變(bian)化(hua)
，泄(xie)壓(ya)變(bian)送(song)器(qi)零(ling)位(wei)回(hui)不(bu)去(qu)，很(hen)有(you)可(ke)能(neng)是(shi)壓(ya)力(li)傳(chuan)感(gan)器(qi)密(mi)封(feng)圈(quan)的(de)問(wen)題(ti)，常(chang)見(jian)的(de)是(shi)由(you)於(yu)密(mi)封(feng)圈(quan)規(gui)格(ge)原(yuan)因(yin)，傳(chuan)感(gan)器(qi)擰(ning)緊(jin)之(zhi)後(hou)密(mi)封(feng)圈(quan)被(bei)壓(ya)縮(suo)到(dao)傳(chuan)感(gan)器(qi)引(yin)壓(ya)口(kou)裏(li)麵(mian)堵(du)塞(sai)傳(chuan)感(gan)器(qi)，加(jia)壓(ya)時(shi)壓(ya)力(li)介(jie)質(zhi)進(jin)不(bu)去(qu)
，但(dan)在(zai)壓(ya)力(li)大(da)時(shi)突(tu)然(ran)衝(chong)開(kai)密(mi)封(feng)圈(quan)，壓(ya)力(li)傳(chuan)感(gan)器(qi)受(shou)到(dao)壓(ya)力(li)而(er)變(bian)化(hua)
，排(pai)除(chu)這(zhe)種(zhong)故(gu)障(zhang)的(de)最(zui)佳(jia)方(fang)法(fa)是(shi)將(jiang)傳(chuan)感(gan)器(qi)卸(xie)下(xia)
，直(zhi)接(jie)察(cha)看(kan)零(ling)位(wei)是(shi)否(fou)正(zheng)常(chang)
，若(ruo)零(ling)位(wei)正(zheng)常(chang)可(ke)更(geng)換(huan)密(mi)封(feng)圈(quan)再(zai)試(shi);

　　第(di)三(san)種(zhong)是(shi)變(bian)送(song)器(qi)輸(shu)出(chu)信(xin)號(hao)不(bu)穩(wen)
，這(zhe)種(zhong)故(gu)障(zhang)有(you)肯(ken)是(shi)壓(ya)力(li)源(yuan)的(de)問(wen)題(ti)。壓(ya)力(li)源(yuan)本(ben)身(shen)是(shi)一(yi)個(ge)不(bu)穩(wen)定(ding)的(de)壓(ya)力(li)，很(hen)有(you)可(ke)能(neng)是(shi)儀(yi)表(biao)或(huo)壓(ya)力(li)傳(chuan)感(gan)器(qi)抗(kang)幹(gan)擾(rao)能(neng)力(li)不(bu)強(qiang)、傳感器本身振動很厲害和傳感器故障;第四種是變送器與指針式壓力表對照偏差大
，出現偏差是正常的現象，確認正常的偏差範圍即可;

　　最(zui)後(hou)一(yi)種(zhong)易(yi)出(chu)現(xian)的(de)故(gu)障(zhang)是(shi)壓(ya)力(li)傳(chuan)感(gan)器(qi)安(an)裝(zhuang)位(wei)置(zhi)對(dui)零(ling)位(wei)輸(shu)出(chu)的(de)影(ying)響(xiang)
，微(wei)差(cha)壓(ya)變(bian)送(song)器(qi)由(you)於(yu)其(qi)測(ce)量(liang)範(fan)圍(wei)很(hen)小(xiao)，變(bian)送(song)器(qi)中(zhong)傳(chuan)感(gan)元(yuan)件(jian)會(hui)影(ying)響(xiang)到(dao)微(wei)差(cha)壓(ya)變(bian)送(song)器(qi)的(de)輸(shu)出(chu)，安(an)裝(zhuang)時(shi)應(ying)使(shi)變(bian)送(song)器(qi)的(de)壓(ya)力(li)敏(min)感(gan)件(jian)軸(zhou)向(xiang)垂(chui)直(zhi)於(yu)重(zhong)力(li)方(fang)向(xiang)
，安(an)裝(zhuang)固(gu)定(ding)後(hou)調(tiao)整(zheng)變(bian)送(song)器(qi)零(ling)位(wei)到(dao)標(biao)準(zhun)值(zhi)。