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高低溫試驗箱常見故障排除
點擊次數:1301 更新時間:2020-12-10

1.在高溫試(shi)驗中,如溫度(du)變化達不到試(shi)驗溫度(du)值時,可(ke)以檢(jian)查電(dian)器(qi)系統,逐一排除故障。如溫度(du)升得很慢,就(jiu)要查看風(feng)循(xun)(xun)環系統,看一下風(feng)循(xun)(xun)環的調節擋板是否開(kai)啟正常(chang),反之,就(jiu)檢(jian)查風(feng)循(xun)(xun)環的電(dian)機(ji)運轉是否正常(chang)。如溫度(du)過沖厲害那么就(jiu)需要整(zheng)定PID 的設置參數(shu)。如果溫度(du)直(zhi)接上升,過溫保護,那么,控(kong)(kong)制器(qi)出故障,須更換控(kong)(kong)制儀表。

2.低溫(wen)達不到試(shi)驗(yan)的(de)(de)(de)指(zhi)標,那(nei)你(ni)就要(yao)(yao)觀察溫(wen)度的(de)(de)(de)變化,是(shi)溫(wen)度降的(de)(de)(de)很慢(man),還是(shi)溫(wen)度到一(yi)定(ding)(ding)值后溫(wen)度有(you)回升的(de)(de)(de)趨(qu)勢(shi),前者(zhe)就要(yao)(yao)檢查(cha)一(yi)下(xia),做(zuo)低溫(wen)試(shi)驗(yan)前是(shi)否將工(gong)(gong)作室(shi)烘干,使(shi)工(gong)(gong)作室(shi)保持干燥后再將試(shi)驗(yan)樣(yang)(yang)品放(fang)(fang)(fang)入工(gong)(gong)作室(shi)內再做(zuo)試(shi)驗(yan),工(gong)(gong)作室(shi)內的(de)(de)(de)試(shi)驗(yan)樣(yang)(yang)品是(shi)否放(fang)(fang)(fang)置的(de)(de)(de)過多,使(shi)工(gong)(gong)作室(shi)內的(de)(de)(de)風不能充分循(xun)環(huan),在(zai)排除上述原因后,就要(yao)(yao)考(kao)慮是(shi)否是(shi)制冷(leng)系(xi)統(tong)中的(de)(de)(de)故障了,這樣(yang)(yang)就要(yao)(yao)請廠家的(de)(de)(de)專業人員進行(xing)檢修。后者(zhe)的(de)(de)(de)現象是(shi)設(she)(she)備(bei)的(de)(de)(de)使(shi)用(yong)環(huan)境不好所致,設(she)(she)備(bei)放(fang)(fang)(fang)置的(de)(de)(de)環(huan)境溫(wen)度,放(fang)(fang)(fang)置的(de)(de)(de)位置(箱體后與墻的(de)(de)(de)距離)要(yao)(yao)滿(man)足要(yao)(yao)求(在(zai)設(she)(she)備(bei)操作使(shi)用(yong)說明中都有(you)規定(ding)(ding))。

3.在做濕(shi)(shi)熱試(shi)驗中(zhong)(zhong),出現(xian)(xian)(xian)實際濕(shi)(shi)度會達到100%或者實際濕(shi)(shi)度與目(mu)標濕(shi)(shi)度相(xiang)差很大,數值低得(de)很多,前者的(de)(de)現(xian)(xian)(xian)象:可(ke)(ke)能是(shi)濕(shi)(shi)球傳感器(qi)上的(de)(de)紗(sha)布(bu)干燥引起(qi),那就要(yao)檢查濕(shi)(shi)球傳感器(qi)的(de)(de)水(shui)(shui)(shui)(shui)槽中(zhong)(zhong)是(shi)否缺水(shui)(shui)(shui)(shui),水(shui)(shui)(shui)(shui)槽中(zhong)(zhong)的(de)(de)水(shui)(shui)(shui)(shui)位(wei)是(shi)由(you)一(yi)(yi)水(shui)(shui)(shui)(shui)位(wei)控(kong)制(zhi)(zhi)器(qi)自動控(kong)制(zhi)(zhi)的(de)(de),查水(shui)(shui)(shui)(shui)位(wei)控(kong)制(zhi)(zhi)器(qi)供水(shui)(shui)(shui)(shui)系(xi)統(tong)(tong)是(shi)否供水(shui)(shui)(shui)(shui)正常(chang)(chang)(chang)(chang),水(shui)(shui)(shui)(shui)位(wei)控(kong)制(zhi)(zhi)器(qi)工作是(shi)否正常(chang)(chang)(chang)(chang)。另一(yi)(yi)種可(ke)(ke)能就是(shi)濕(shi)(shi)球紗(sha)布(bu)因使(shi)用(yong)時間長,或供水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質純凈度的(de)(de)原因,會使(shi)紗(sha)布(bu)變(bian)硬,使(shi)紗(sha)布(bu)無法吸收水(shui)(shui)(shui)(shui)份(fen)而干燥,只要(yao)更(geng)換或清(qing)洗紗(sha)布(bu)即可(ke)(ke)排除以上現(xian)(xian)(xian)象。后者的(de)(de)現(xian)(xian)(xian)象主要(yao)是(shi)加濕(shi)(shi)系(xi)統(tong)(tong)不(bu)工作,查看加濕(shi)(shi)系(xi)統(tong)(tong)的(de)(de)供水(shui)(shui)(shui)(shui)系(xi)統(tong)(tong),供水(shui)(shui)(shui)(shui)系(xi)統(tong)(tong)內是(shi)否有一(yi)(yi)定的(de)(de)水(shui)(shui)(shui)(shui)量,控(kong)制(zhi)(zhi)加濕(shi)(shi)鍋(guo)爐(lu)(lu)水(shui)(shui)(shui)(shui)位(wei)的(de)(de)水(shui)(shui)(shui)(shui)位(wei)控(kong)制(zhi)(zhi)是(shi)否正常(chang)(chang)(chang)(chang),加濕(shi)(shi)鍋(guo)爐(lu)(lu)內的(de)(de)水(shui)(shui)(shui)(shui)位(wei)是(shi)否正常(chang)(chang)(chang)(chang)。如以上一(yi)(yi)切都正常(chang)(chang)(chang)(chang),那就要(yao)檢查電器(qi)控(kong)制(zhi)(zhi)系(xi)統(tong)(tong),這要(yao)請專業維(wei)修人員進行檢修。

4.設備在試(shi)(shi)驗(yan)(yan)運(yun)行過程中突然(ran)出(chu)現故障(zhang)時,控(kong)制儀表(biao)上出(chu)現對應的(de)故障(zhang)顯示提(ti)(ti)示并有聲訊報警提(ti)(ti)示。操作人員(yuan)可以對照設備的(de)操作使用中的(de)故障(zhang)排除一(yi)章中快速檢查出(chu)屬于(yu)哪一(yi)類(lei)故障(zhang),即可請專(zhuan)業人員(yuan)快速排除故障(zhang),以確保試(shi)(shi)驗(yan)(yan)的(de)正常進行。

其它(ta)(ta)環境試(shi)驗設備(bei)在使用中還(huan)會有(you)其它(ta)(ta)的(de)現(xian)象,那就要(yao)具(ju)(ju)體現(xian)象,具(ju)(ju)體分析(xi)和(he)排除。環境試(shi)驗設備(bei)還(huan)要(yao)定期(qi)進行維護保養,制冷(leng)系統的(de)冷(leng)凝器(qi)定期(qi)清理,對(dui)于活動(dong)部件應按說明書加油潤滑(hua),電(dian)器(qi)控制系統定期(qi)維護檢查等等,這些(xie)工作(zuo)是*的(de)。

本文出自(zi):南京環科試驗設備有(you)限公司,轉載請注明出處(chu),謝(xie)謝(xie)!