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　　1、高(gao)低(di)溫(wen)試驗(yan)設(she)備。在高(gao)溫(wen)試驗(yan)中，如(ru)果(guo)溫(wen)度(du)變(bian)化達不到(dao)試驗(yan)溫(wen)度(du)值，可以(yi)對(dui)電氣系統進行檢查(cha)，逐個排除故障。如(ru)果(guo)溫(wen)度(du)上(shang)升(sheng)緩慢(man)，檢查(cha)空氣循(xun)環系統，看看空氣循(xun)環的風門是(shi)否(fou)正常打(da)開。否(fou)則(ze)，檢查(cha)電機(ji)的空氣循(xun)環手術是(shi)否(fou)正常。如(ru)果(guo)溫(wen)度(du)超調嚴重，需要設(she)置PID整定參數，如(ru)果(guo)溫(wen)度(du)直接升(sheng)高(gao)，保護超溫(wen)，如(ru)果(guo)控制器(qi)失效，須更(geng)換控制儀表。

　　2、試驗(yan)運行中(zhong)，當高低溫試驗(yan)設(she)(she)備(bei)突然故(gu)(gu)障(zhang)(zhang)時，控制儀表(biao)上出(chu)現相應(ying)的(de)故(gu)(gu)障(zhang)(zhang)顯示(shi)提示(shi)和聲音報警提示(shi)。操作者在操作和使用設(she)(she)備(bei)時，可根(gen)據故(gu)(gu)障(zhang)(zhang)排除(chu)章節快速檢(jian)查故(gu)(gu)障(zhang)(zhang)類(lei)型(xing)，然后請人員排除(chu)故(gu)(gu)障(zhang)(zhang)，確保測(ce)試正常。其他環境試驗(yan)設(she)(she)備(bei)在使用過(guo)程中(zhong)還會(hui)出(chu)現其他現象，要對這些現象進(jin)行分析(xi)和消除(chu)。定(ding)期維(wei)護環境試驗(yan)設(she)(she)備(bei)，定(ding)期清洗制冷系(xi)統冷凝器，按說明書要求對移動部件進(jin)行潤滑，定(ding)期維(wei)護和檢(jian)查電氣(qi)控制系(xi)統等.

　　3、如果高低溫(wen)度測(ce)試(shi)儀(yi)器(qi)的(de)低溫(wen)不符(fu)合(he)測(ce)試(shi)指標，則應(ying)觀察溫(wen)度變化，在溫(wen)度達到一定值(zhi)后(hou)，是(shi)(shi)緩慢(man)下降還(huan)是(shi)(shi)上(shang)升。對于前(qian)者(zhe)，應(ying)在低溫(wen)測(ce)試(shi)前(qian)檢查(cha)工(gong)作室(shi)內是(shi)(shi)否干燥，然(ran)后(hou)將測(ce)試(shi)樣(yang)品放入工(gong)作室(shi)內進行進一步測(ce)試(shi)。測(ce)試(shi)樣(yang)本(ben)在房間工(gong)作產品是(shi)(shi)否放置太多,所(suo)(suo)以工(gong)作室(shi)的(de)空氣不能(neng)流(liu)通,消(xiao)除上(shang)述原因后(hou),要考(kao)慮是(shi)(shi)否在制冷系統故障,所(suo)(suo)以要問儀(yi)器(qi)廠(chang)家的(de)人員進行維護。后(hou)一種現象是(shi)(shi)設(she)備使(shi)(shi)用環(huan)境差(cha)造成的(de)。設(she)備的(de)環(huan)境溫(wen)度和位置(箱與(yu)墻的(de)距(ju)離)應(ying)符(fu)合(he)要求(qiu)(設(she)備使(shi)(shi)用說明書中規定)。

　　4、在濕(shi)(shi)熱高(gao)低溫箱的試驗中，實際濕(shi)(shi)度或實際濕(shi)(shi)度與目標濕(shi)(shi)度相差較(jiao)大，數值要(yao)低得(de)多(duo)。前一(yi)種現象(xiang):可(ke)能(neng)是(shi)濕(shi)(shi)球傳感器(qi)上的紗布(bu)干燥引起的，所以(yi)(yi)要(yao)檢(jian)查濕(shi)(shi)球傳感器(qi)的水(shui)(shui)(shui)(shui)(shui)箱是(shi)否(fou)缺水(shui)(shui)(shui)(shui)(shui)。水(shui)(shui)(shui)(shui)(shui)箱內(nei)水(shui)(shui)(shui)(shui)(shui)位由水(shui)(shui)(shui)(shui)(shui)位控(kong)制(zhi)器(qi)自(zi)動控(kong)制(zhi)，檢(jian)查水(shui)(shui)(shui)(shui)(shui)位控(kong)制(zhi)器(qi)供(gong)水(shui)(shui)(shui)(shui)(shui)是(shi)否(fou)正(zheng)(zheng)常(chang)(chang)，供(gong)水(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)(tong)供(gong)水(shui)(shui)(shui)(shui)(shui)是(shi)否(fou)正(zheng)(zheng)常(chang)(chang)，水(shui)(shui)(shui)(shui)(shui)位控(kong)制(zhi)器(qi)工(gong)作是(shi)否(fou)正(zheng)(zheng)常(chang)(chang)。另一(yi)種可(ke)能(neng)是(shi)濕(shi)(shi)球紗布(bu)由于使用時(shi)間長或供(gong)水(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)質純凈而變硬，使紗布(bu)無法吸水(shui)(shui)(shui)(shui)(shui)和干燥。只要(yao)更換或清洗紗布(bu)，上述現象(xiang)就可(ke)以(yi)(yi)消除。后者的現象(xiang)是(shi)加濕(shi)(shi)系(xi)統(tong)(tong)不(bu)工(gong)作。檢(jian)查加濕(shi)(shi)系(xi)統(tong)(tong)供(gong)水(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)(tong)，供(gong)水(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)(tong)是(shi)否(fou)有(you)一(yi)定量(liang)的水(shui)(shui)(shui)(shui)(shui)，加濕(shi)(shi)鍋(guo)爐水(shui)(shui)(shui)(shui)(shui)位控(kong)制(zhi)是(shi)否(fou)正(zheng)(zheng)常(chang)(chang)，加濕(shi)(shi)鍋(guo)爐水(shui)(shui)(shui)(shui)(shui)位是(shi)否(fou)正(zheng)(zheng)常(chang)(chang)。如以(yi)(yi)上各項正(zheng)(zheng)常(chang)(chang)，應檢(jian)查電(dian)氣控(kong)制(zhi)系(xi)統(tong)(tong)，由維修人(ren)員進行維修。