差壓變送器的注意事項

1.切勿(wu)用(yong)(yong)高(gao)于36V電壓(ya)加到(dao)變(bian)送(song)(song)器(qi)(qi)上，導致(zhi)(zhi)變(bian)送(song)(song)器(qi)(qi)損(sun)壞(huai)；2.切勿(wu)用(yong)(yong)硬物(wu)碰(peng)觸(chu)(chu)膜(mo)(mo)片(pian)，導致(zhi)(zhi)隔離(li)膜(mo)(mo)片(pian)損(sun)壞(huai)；3.被(bei)測介質(zhi)不(bu)允許結(jie)冰(bing)，否(fou)則將(jiang)損(sun)傷(shang)傳(chuan)感器(qi)(qi)元(yuan)件隔離(li)膜(mo)(mo)片(pian)，導致(zhi)(zhi)變(bian)送(song)(song)器(qi)(qi)損(sun)壞(huai)，必(bi)要(yao)時需對變(bian)送(song)(song)器(qi)(qi)進行(xing)溫(wen)度保護，以(yi)(yi)防結(jie)冰(bing)；4.在測量(liang)蒸汽(qi)或(huo)其他(ta)高(gao)溫(wen)介質(zhi)時，其溫(wen)度不(bu)應(ying)超過(guo)變(bian)送(song)(song)器(qi)(qi)使(shi)用(yong)(yong)時的(de)極(ji)限溫(wen)度，高(gao)于變(bian)送(song)(song)器(qi)(qi)使(shi)用(yong)(yong)的(de)極(ji)限溫(wen)度必(bi)須使(shi)用(yong)(yong)散(san)熱(re)(re)裝(zhuang)置；5.測量(liang)蒸汽(qi)或(huo)其他(ta)高(gao)溫(wen)介質(zhi)時，應(ying)使(shi)用(yong)(yong)散(san)熱(re)(re)管(guan)(guan)，使(shi)變(bian)送(song)(song)器(qi)(qi)和管(guan)(guan)道連(lian)在一起，并使(shi)用(yong)(yong)管(guan)(guan)道上的(de)壓(ya)力傳(chuan)至變(bian)壓(ya)器(qi)(qi)。當被(bei)測介質(zhi)為(wei)水蒸氣時，散(san)熱(re)(re)管(guan)(guan)中要(yao)注(zhu)入適量(liang)的(de)水，以(yi)(yi)防過(guo)熱(re)(re)蒸汽(qi)直接(jie)與(yu)變(bian)送(song)(song)器(qi)(qi)接(jie)觸(chu)(chu)，損(sun)壞(huai)傳(chuan)感器(qi)(qi)；6.在壓(ya)力傳(chuan)輸(shu)過(guo)程中，應(ying)注(zhu)意以(yi)(yi)下幾點：a.變(bian)送(song)(song)器(qi)(qi)與(yu)散(san)熱(re)(re)管(guan)(guan)連(lian)接(jie)處，切勿(wu)漏氣；b.開(kai)始使(shi)用(yong)(yong)前，如果閥(fa)(fa)門是關閉的(de)，則使(shi)用(yong)(yong)時，應(ying)該非常(chang)小心、緩慢地打(da)開(kai)閥(fa)(fa)門，以(yi)(yi)免被(bei)測介質(zhi)直接(jie)沖(chong)擊傳(chuan)感器(qi)(qi)膜(mo)(mo)片(pian)，從(cong)而損(sun)壞(huai)傳(chuan)感器(qi)(qi)膜(mo)(mo)片(pian)；c.管(guan)(guan)路(lu)中必(bi)須保持暢通，管(guan)(guan)道中的(de)沉積物(wu)會彈出，并損(sun)壞(huai)傳(chuan)感器(qi)(qi)膜(mo)(mo)片(pian)。