怎么正確選購陶瓷芯壓力變送器

正(zheng)確(que)(que)選(xuan)購(gou)陶瓷芯壓(ya)(ya)(ya)力(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)時(shi)應(ying)(ying)該(gai)注意(yi)點一(yi)(yi)般有以(yi)(yi)下幾點： 一(yi)(yi)、壓(ya)(ya)(ya)力(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)要(yao)(yao)(yao)(yao)(yao)丈量(liang)什么(me)(me)(me)樣(yang)(yang)(yang)(yang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)(li)(li) 一(yi)(yi)般而言需要(yao)(yao)(yao)(yao)(yao)選(xuan)擇(ze)一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)具有比最(zui)大(da)(da)(da)值(zhi)還(huan)要(yao)(yao)(yao)(yao)(yao)大(da)(da)(da)1.5倍左(zuo)右的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)(li)(li)量(liang)程(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)。這(zhe)主要(yao)(yao)(yao)(yao)(yao)是(shi)(shi)(shi)(shi)許多(duo)系(xi)(xi)統中(zhong)(zhong)， 先(xian)確(que)(que)定(ding)(ding)(ding)(ding)系(xi)(xi)統中(zhong)(zhong)測量(liang)壓(ya)(ya)(ya)力(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)最(zui)大(da)(da)(da)值(zhi)。尤其(qi)(qi)是(shi)(shi)(shi)(shi)水壓(ya)(ya)(ya)丈量(liang)和加工(gong)(gong)處(chu)置中(zhong)(zhong)，有峰值(zhi)和繼(ji)續不規則(ze)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)上下動搖，這(zhe)種(zhong)瞬間(jian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)峰值(zhi)能(neng)破壞壓(ya)(ya)(ya)力(li)(li)(li)(li)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)。繼(ji)續的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)高(gao)壓(ya)(ya)(ya)力(li)(li)(li)(li)值(zhi)或(huo)稍微超(chao)出(chu)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)標定(ding)(ding)(ding)(ding)最(zui)大(da)(da)(da)值(zhi)會(hui)縮短(duan)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)壽命，這(zhe)樣(yang)(yang)(yang)(yang)做還(huan)會(hui)使(shi)(shi)精(jing)度(du)(du)(du)(du)(du)下降。于(yu)是(shi)(shi)(shi)(shi)可以(yi)(yi)用(yong)(yong)(yong)(yong)(yong)一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)緩沖器(qi)(qi)(qi)(qi)(qi)來(lai)降低壓(ya)(ya)(ya)力(li)(li)(li)(li)毛(mao)刺，但這(zhe)樣(yang)(yang)(yang)(yang)會(hui)降低傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)響(xiang)(xiang)應(ying)(ying)速度(du)(du)(du)(du)(du)。所以(yi)(yi)在(zai)選(xuan)擇(ze)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)時(shi)要(yao)(yao)(yao)(yao)(yao)充分(fen)考(kao)慮(lv)壓(ya)(ya)(ya)力(li)(li)(li)(li)范(fan)(fan)圍(wei)(wei)、精(jing)度(du)(du)(du)(du)(du)與(yu)其(qi)(qi)穩(wen)定(ding)(ding)(ding)(ding)性(xing)(xing)(xing)(xing)(xing)。 二、什么(me)(me)(me)樣(yang)(yang)(yang)(yang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)(li)(li)介質 溶(rong)劑或(huo)有腐蝕性(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)物質會(hui)不會(hui)破壞變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)中(zhong)(zhong)與(yu)這(zhe)些(xie)介質直接(jie)(jie)(jie)(jie)接(jie)(jie)(jie)(jie)觸的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)資料。以(yi)(yi)上這(zhe)些(xie)因素(su)將(jiang)決(jue)定(ding)(ding)(ding)(ding)是(shi)(shi)(shi)(shi)否(fou)(fou)選(xuan)擇(ze)直接(jie)(jie)(jie)(jie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)隔離(li)(li)膜(mo)及直接(jie)(jie)(jie)(jie)與(yu)介質接(jie)(jie)(jie)(jie)觸的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)資料。 黏性(xing)(xing)(xing)(xing)(xing)液體、泥漿(jiang)會(hui)堵上壓(ya)(ya)(ya)力(li)(li)(li)(li)接(jie)(jie)(jie)(jie)口(kou)。 三、壓(ya)(ya)(ya)力(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)需要(yao)(yao)(yao)(yao)(yao)多(duo)大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)精(jing)度(du)(du)(du)(du)(du) 非線性(xing)(xing)(xing)(xing)(xing)， 決(jue)定(ding)(ding)(ding)(ding)精(jing)度(du)(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)有。遲滯性(xing)(xing)(xing)(xing)(xing)，非重(zhong)復(fu)性(xing)(xing)(xing)(xing)(xing)，溫(wen)(wen)度(du)(du)(du)(du)(du)、零點偏(pian)置刻度(du)(du)(du)(du)(du)，溫(wen)(wen)度(du)(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)影響(xiang)(xiang)。但主要(yao)(yao)(yao)(yao)(yao)由(you)非線性(xing)(xing)(xing)(xing)(xing)，遲滯性(xing)(xing)(xing)(xing)(xing)，非重(zhong)復(fu)性(xing)(xing)(xing)(xing)(xing)，精(jing)度(du)(du)(du)(du)(du)越高(gao)，價格也就越高(gao)。 四、壓(ya)(ya)(ya)力(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)度(du)(du)(du)(du)(du)范(fan)(fan)圍(wei)(wei) 其(qi)(qi)中(zhong)(zhong)一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)溫(wen)(wen)度(du)(du)(du)(du)(du)段是(shi)(shi)(shi)(shi)正(zheng)常工(gong)(gong)作溫(wen)(wen)度(du)(du)(du)(du)(du)， 通常一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)會(hui)標定(ding)(ding)(ding)(ding)兩個(ge)(ge)(ge)(ge)(ge)溫(wen)(wen)確(que)(que)段。另外一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)是(shi)(shi)(shi)(shi)溫(wen)(wen)度(du)(du)(du)(du)(du)彌(mi)補范(fan)(fan)圍(wei)(wei)，正(zheng)常工(gong)(gong)作溫(wen)(wen)度(du)(du)(du)(du)(du)范(fan)(fan)圍(wei)(wei)是(shi)(shi)(shi)(shi)指(zhi)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)在(zai)工(gong)(gong)作狀態(tai)下不被破壞的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)時(shi)候的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)度(du)(du)(du)(du)(du)范(fan)(fan)圍(wei)(wei)，超(chao)出(chu)溫(wen)(wen)度(du)(du)(du)(du)(du)彌(mi)補范(fan)(fan)圍(wei)(wei)時(shi)可能(neng)會(hui)達(da)不到(dao)其(qi)(qi)應(ying)(ying)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)性(xing)(xing)(xing)(xing)(xing)能(neng)指(zhi)標。 五、壓(ya)(ya)(ya)力(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)超(chao)時(shi)工(gong)(gong)作后(hou)(hou)(hou)需要(yao)(yao)(yao)(yao)(yao)堅持穩(wen)定(ding)(ding)(ding)(ding)度(du)(du)(du)(du)(du) 這(zhe)種(zhong)預先(xian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)作能(neng)減少將(jiang)來(lai)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)中(zhong)(zhong)會(hui)出(chu)現的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)種(zhong)種(zhong)麻煩。 大(da)(da)(da)部(bu)分(fen)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)在(zai)經過(guo)超(chao)額工(gong)(gong)作后(hou)(hou)(hou)會(hui)產(chan)生“漂移(yi)(yi)”因此很有必要(yao)(yao)(yao)(yao)(yao)在(zai)購(gou)買(mai)前了(le)解(jie)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)穩(wen)定(ding)(ding)(ding)(ding)性(xing)(xing)(xing)(xing)(xing)。 六、壓(ya)(ya)(ya)力(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)封裝 往往容易(yi)忽略是(shi)(shi)(shi)(shi)機架(jia)， 變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)封裝。然而這(zhe)一(yi)(yi)點在(zai)以(yi)(yi)后(hou)(hou)(hou)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)中(zhong)(zhong)會(hui)逐漸流露出(chu)其(qi)(qi)缺(que)點。選(xuan)購(gou)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)時(shi)一(yi)(yi)定(ding)(ding)(ding)(ding)要(yao)(yao)(yao)(yao)(yao)考(kao)慮(lv)到(dao)將(jiang)來(lai)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)作環境，濕度(du)(du)(du)(du)(du)如(ru)何，怎(zen)(zen)(zen)樣(yang)(yang)(yang)(yang)裝置變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)，會(hui)不會(hui)有強烈的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)撞擊(ji)或(huo)振(zhen)動等(deng)。 七、壓(ya)(ya)(ya)力(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)與(yu)其(qi)(qi)它電(dian)(dian)(dian)(dian)子設備間(jian)采(cai)用(yong)(yong)(yong)(yong)(yong)怎(zen)(zen)(zen)樣(yang)(yang)(yang)(yang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)連(lian)接(jie)(jie)(jie)(jie) 否(fou)(fou)需要(yao)(yao)(yao)(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)連(lian)接(jie)(jie)(jie)(jie)器(qi)(qi)(qi)(qi)(qi)? 否(fou)(fou)需要(yao)(yao)(yao)(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)短(duan)距離(li)(li)連(lian)接(jie)(jie)(jie)(jie)?若是(shi)(shi)(shi)(shi)采(cai)用(yong)(yong)(yong)(yong)(yong)長距離(li)(li)連(lian)接(jie)(jie)(jie)(jie)。 一(yi)(yi)是(shi)(shi)(shi)(shi)零點漂移(yi)(yi)， 溫(wen)(wen)度(du)(du)(du)(du)(du)彌(mi)補范(fan)(fan)圍(wei)(wei)是(shi)(shi)(shi)(shi)一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)比工(gong)(gong)作溫(wen)(wen)度(du)(du)(du)(du)(du)范(fan)(fan)圍(wei)(wei)小的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)典(dian)型范(fan)(fan)圍(wei)(wei)。這(zhe)個(ge)(ge)(ge)(ge)(ge)范(fan)(fan)圍(wei)(wei)內工(gong)(gong)作變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)肯定(ding)(ding)(ding)(ding)會(hui)達(da)到(dao)其(qi)(qi)應(ying)(ying)有的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)性(xing)(xing)(xing)(xing)(xing)能(neng)指(zhi)標。溫(wen)(wen)度(du)(du)(du)(du)(du)變(bian)(bian)(bian)(bian)(bian)(bian)從兩方面影響(xiang)(xiang)著其(qi)(qi)輸(shu)(shu)出(chu)。二是(shi)(shi)(shi)(shi)影響(xiang)(xiang)滿量(liang)程(cheng)輸(shu)(shu)出(chu)。如(ru)：滿量(liang)程(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)+/-X%/℃，讀數的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)+/-X%/℃，超(chao)出(chu)溫(wen)(wen)度(du)(du)(du)(du)(du)范(fan)(fan)圍(wei)(wei)時(shi)滿量(liang)程(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)+/-X%溫(wen)(wen)度(du)(du)(du)(du)(du)彌(mi)補范(fan)(fan)圍(wei)(wei)內時(shi)讀數的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)+/-X%如(ru)果(guo)(guo)沒有這(zhe)些(xie)參數，會(hui)導至(zhi)在(zai)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不確(que)(que)定(ding)(ding)(ding)(ding)性(xing)(xing)(xing)(xing)(xing)。變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)輸(shu)(shu)出(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)化(hua)到(dao)度(du)(du)(du)(du)(du)是(shi)(shi)(shi)(shi)由(you)壓(ya)(ya)(ya)力(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)化(hua)引(yin)起(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)還(huan)是(shi)(shi)(shi)(shi)由(you)溫(wen)(wen)度(du)(du)(du)(du)(du)變(bian)(bian)(bian)(bian)(bian)(bian)化(hua)引(yin)起(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)度(du)(du)(du)(du)(du)影響(xiang)(xiang)是(shi)(shi)(shi)(shi)解(jie)如(ru)何使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)時(shi)最(zui)復(fu)雜(za)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)部(bu)分(fen)。 八、需要(yao)(yao)(yao)(yao)(yao)得到(dao)壓(ya)(ya)(ya)力(li)(li)(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)怎(zen)(zen)(zen)樣(yang)(yang)(yang)(yang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)(shu)出(chu)信號 選(xuan)擇(ze)怎(zen)(zen)(zen)樣(yang)(yang)(yang)(yang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)(shu)出(chu)取決(jue)于(yu)多(duo)種(zhong)因素(su)， mVVmA 及頻(pin)(pin)率輸(shu)(shu)出(chu)數字(zi)輸(shu)(shu)出(chu)。包括變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)與(yu)系(xi)(xi)統控制(zhi)器(qi)(qi)(qi)(qi)(qi)或(huo)顯(xian)示(shi)器(qi)(qi)(qi)(qi)(qi)間(jian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)距離(li)(li)，否(fou)(fou)存(cun)在(zai)噪聲”或(huo)其(qi)(qi)他電(dian)(dian)(dian)(dian)子干擾(rao)信號，否(fou)(fou)需要(yao)(yao)(yao)(yao)(yao)放大(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)，放大(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)位置等(deng)。對于(yu)許多(duo)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)和控制(zhi)器(qi)(qi)(qi)(qi)(qi)間(jian)距離(li)(li)較(jiao)短(duan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)OEM設備采(cai)用(yong)(yong)(yong)(yong)(yong)mA 輸(shu)(shu)出(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)最(zui)為經濟而有效(xiao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)解(jie)決(jue)方法(fa)。 最(zui)好采(cai)用(yong)(yong)(yong)(yong)(yong)具有內置放大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)。對于(yu)遠距離(li)(li)傳(chuan)(chuan)(chuan)輸(shu)(shu)或(huo)存(cun)在(zai)較(jiao)強的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)子干擾(rao)信號最(zui)好采(cai)用(yong)(yong)(yong)(yong)(yong)mA 級(ji)輸(shu)(shu)出(chu)或(huo)頻(pin)(pin)率輸(shu)(shu)出(chu)。 如(ru)果(guo)(guo)需要(yao)(yao)(yao)(yao)(yao)將(jiang)輸(shu)(shu)出(chu)信號放大(da)(da)(da)。 如(ru)果(guo)(guo)在(zai)RFI或(huo)EMI指(zhi)標很高(gao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)環境中(zhong)(zhong)除了(le)要(yao)(yao)(yao)(yao)(yao)注意(yi)到(dao)要(yao)(yao)(yao)(yao)(yao)選(xuan)擇(ze)mA 或(huo)頻(pin)(pin)率輸(shu)(shu)出(chu)外還(huan)要(yao)(yao)(yao)(yao)(yao)考(kao)慮(lv)到(dao)特殊的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)維護或(huo)過(guo)濾器(qi)(qi)(qi)(qi)(qi)。 九、選(xuan)擇(ze)怎(zen)(zen)(zen)樣(yang)(yang)(yang)(yang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)勵的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)磁電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya) 因此其(qi)(qi)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)范(fan)(fan)圍(wei)(wei)較(jiao)大(da)(da)(da)。有些(xie)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)是(shi)(shi)(shi)(shi)定(ding)(ding)(ding)(ding)量(liang)配(pei)置， 輸(shu)(shu)出(chu)信號的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)類(lei)型決(jue)定(ding)(ding)(ding)(ding)選(xuan)擇(ze)怎(zen)(zen)(zen)么(me)(me)(me)樣(yang)(yang)(yang)(yang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)勵磁電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)。許多(duo)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)有內置的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)調節裝置。需要(yao)(yao)(yao)(yao)(yao)一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)穩(wen)定(ding)(ding)(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)作電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，因此，工(gong)(gong)作電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)決(jue)定(ding)(ding)(ding)(ding)是(shi)(shi)(shi)(shi)否(fou)(fou)采(cai)用(yong)(yong)(yong)(yong)(yong)帶有調節器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)(qi)(qi)(qi)，選(xuan)擇(ze)傳(chuan)(chuan)(chuan)送器(qi)(qi)(qi)(qi)(qi)時(shi)要(yao)(yao)(yao)(yao)(yao)綜合考(kao)慮(lv)工(gong)(gong)作電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)與(yu)系(xi)(xi)統造價。 十、否(fou)(fou)需要(yao)(yao)(yao)(yao)(yao)具備互換性(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi) 尤其(qi)(qi)是(shi)(shi)(shi)(shi)對于(yu)OEM產(chan)品(pin)。一(yi)(yi)旦將(jiang)產(chan)品(pin)送到(dao)客戶手中(zhong)(zhong)那(nei)么(me)(me)(me)客戶用(yong)(yong)(yong)(yong)(yong)來(lai)校準的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)花銷是(shi)(shi)(shi)(shi)相當大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)如(ru)果(guo)(guo)產(chan)品(pin)具有良好的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)互換性(xing)(xing)(xing)(xing)(xing)， 確(que)(que)定(ding)(ding)(ding)(ding)所需的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)是(shi)(shi)(shi)(shi)否(fou)(fou)能(neng)夠適(shi)應(ying)(ying)多(duo)個(ge)(ge)(ge)(ge)(ge)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)系(xi)(xi)統。一(yi)(yi)般來(lai)講這(zhe)一(yi)(yi)點很重(zhong)要(yao)(yao)(yao)(yao)(yao)。那(nei)么(me)(me)(me)即使(shi)(shi)改變(bian)(bian)(bian)(bian)(bian)(bian)所用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)(qi)(qi)(qi)也不會(hui)影響(xiang)(xiang)整(zheng)個(ge)(ge)(ge)(ge)(ge)系(xi)(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)效(xiao)果(guo)(guo)。

壓力變送器工作中的注意事項

首先(xian)(xian)我們(men)來(lai)了解下常(chang)規壓(ya)(ya)(ya)(ya)力(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi) 的(de)(de)(de)(de)(de)結構(gou)以及作(zuo)用。壓(ya)(ya)(ya)(ya)力(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)主要(yao)是由壓(ya)(ya)(ya)(ya)力(li)(li)傳(chuan)感(gan)器(qi)(qi)(qi)、測(ce)量(liang)轉換電(dian)(dian)(dian)路和過程連接部(bu)件三個部(bu)分(fen)組成(cheng)的(de)(de)(de)(de)(de)。它的(de)(de)(de)(de)(de)作(zuo)用是能將壓(ya)(ya)(ya)(ya)力(li)(li)傳(chuan)感(gan)器(qi)(qi)(qi)感(gan)受的(de)(de)(de)(de)(de)氣體(ti)(ti)、液(ye)體(ti)(ti)等物理(li)壓(ya)(ya)(ya)(ya)力(li)(li)參數轉變(bian)(bian)(bian)(bian)(bian)(bian)成(cheng)標(biao)準的(de)(de)(de)(de)(de)電(dian)(dian)(dian)信號，以供給顯(xian)示報警儀(yi)、DCS系(xi)統、記錄儀(yi)、PLC系(xi)統等進行顯(xian)示、測(ce)量(liang)、控(kong)制調節等目的(de)(de)(de)(de)(de)。在(zai)(zai)(zai)這些工作(zuo)中(zhong)，可能會發生很多不同的(de)(de)(de)(de)(de)問題，這個時(shi)候就需要(yao)注(zhu)(zhu)意壓(ya)(ya)(ya)(ya)力(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)在(zai)(zai)(zai)工作(zuo)中(zhong)的(de)(de)(de)(de)(de)保養和防(fang)(fang)護(hu)。 下面我們(men)來(lai)分(fen)析(xi)具(ju)體(ti)(ti)的(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)在(zai)(zai)(zai)使用中(zhong)的(de)(de)(de)(de)(de)注(zhu)(zhu)意事項。 1、首先(xian)(xian)檢查壓(ya)(ya)(ya)(ya)力(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)周圍有無信號干擾(rao)，如果有，盡(jin)量(liang)排除，或盡(jin)可能讓傳(chuan)感(gan)器(qi)(qi)(qi)屏蔽線與(yu)金屬外(wai)殼相連，增強抗干擾(rao)能力(li)(li)。 2、要(yao)定期清(qing)洗安(an)裝孔(kong)，保證安(an)裝孔(kong)的(de)(de)(de)(de)(de)清(qing)潔．防(fang)(fang)止變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)與(yu)腐蝕性或過熱的(de)(de)(de)(de)(de)介(jie)質(zhi)接觸(chu)； 3、接線時(shi)，將電(dian)(dian)(dian)纜(lan)(lan)穿過防(fang)(fang)水接頭(附件)或繞性管(guan)(guan)(guan)(guan)并擰緊密封螺帽，以防(fang)(fang)雨(yu)水等通(tong)過電(dian)(dian)(dian)纜(lan)(lan)滲漏進變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)殼體(ti)(ti)內。 4、測(ce)量(liang)氣體(ti)(ti)壓(ya)(ya)(ya)(ya)力(li)(li)時(shi)，取壓(ya)(ya)(ya)(ya)口(kou)應(ying)開(kai)在(zai)(zai)(zai)流(liu)程管(guan)(guan)(guan)(guan)道(dao)頂(ding)端，并且變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)也應(ying)安(an)裝在(zai)(zai)(zai)流(liu)程管(guan)(guan)(guan)(guan)道(dao)上部(bu)，以便積累的(de)(de)(de)(de)(de)液(ye)體(ti)(ti)容(rong)(rong)易(yi)注(zhu)(zhu)入(ru)流(liu)程管(guan)(guan)(guan)(guan)道(dao)中(zhong)。 5、測(ce)量(liang)液(ye)體(ti)(ti)壓(ya)(ya)(ya)(ya)力(li)(li)時(shi)，取壓(ya)(ya)(ya)(ya)口(kou)應(ying)開(kai)在(zai)(zai)(zai)流(liu)程管(guan)(guan)(guan)(guan)道(dao)側面，以避(bi)免(mian)沉(chen)淀積渣。 6、壓(ya)(ya)(ya)(ya)力(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)上不能使用高(gao)于(yu)36V的(de)(de)(de)(de)(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，容(rong)(rong)易(yi)導(dao)致損(sun)壞(huai)。 7、冬(dong)季發生冰凍(dong)(dong)時(shi)，安(an)裝在(zai)(zai)(zai)室外(wai)的(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)必需采取防(fang)(fang)凍(dong)(dong)措施，避(bi)免(mian)引壓(ya)(ya)(ya)(ya)口(kou)內的(de)(de)(de)(de)(de)液(ye)體(ti)(ti)因結冰體(ti)(ti)積膨脹(zhang)，導(dao)至傳(chuan)感(gan)器(qi)(qi)(qi)損(sun)壞(huai)。 8、測(ce)量(liang)蒸汽(qi)或其它高(gao)溫(wen)介(jie)質(zhi)時(shi)，需接加緩(huan)沖(chong)管(guan)(guan)(guan)(guan)(盤管(guan)(guan)(guan)(guan))等冷(leng)凝器(qi)(qi)(qi)，不應(ying)使變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)工作(zuo)溫(wen)度(du)(du)超過極限。而(er)且緩(huan)沖(chong)管(guan)(guan)(guan)(guan)需要(yao)注(zhu)(zhu)入(ru)適量(liang)水，防(fang)(fang)止過熱蒸汽(qi)與(yu)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)接觸(chu)。而(er)且緩(huan)沖(chong)散熱管(guan)(guan)(guan)(guan)不能漏氣。 測(ce)量(liang)蒸汽(qi)管(guan)(guan)(guan)(guan)道(dao)的(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)安(an)裝示例 9.測(ce)量(liang)液(ye)體(ti)(ti)壓(ya)(ya)(ya)(ya)力(li)(li)時(shi)，變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)安(an)裝位置應(ying)避(bi)免(mian)液(ye)體(ti)(ti)的(de)(de)(de)(de)(de)沖(chong)擊(水錘現象(xiang))，以免(mian)傳(chuan)感(gan)器(qi)(qi)(qi)過壓(ya)(ya)(ya)(ya)損(sun)壞(huai)。 10、導(dao)壓(ya)(ya)(ya)(ya)管(guan)(guan)(guan)(guan)應(ying)安(an)裝在(zai)(zai)(zai)溫(wen)度(du)(du)波(bo)動小的(de)(de)(de)(de)(de)地方； 11、防(fang)(fang)止渣滓在(zai)(zai)(zai)導(dao)管(guan)(guan)(guan)(guan)內沉(chen)積； 12、壓(ya)(ya)(ya)(ya)力(li)(li)變(bian)(bian)(bian)(bian)(bian)(bian)送(song)(song)(song)器(qi)(qi)(qi)測(ce)量(liang)的(de)(de)(de)(de)(de)介(jie)質(zhi)不能冷(leng)凍(dong)(dong)結冰，一(yi)旦結冰，會容(rong)(rong)易(yi)損(sun)壞(huai)膜(mo)片(pian)(pian)，因為膜(mo)片(pian)(pian)一(yi)般都很薄。

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