1、高低溫(wen)試驗(yan)(yan)(yan)設備。在(zai)高溫(wen)試驗(yan)(yan)(yan)中(zhong)，如(ru)果(guo)溫(wen)度(du)變化達(da)不到(dao)試驗(yan)(yan)(yan)溫(wen)度(du)值，可以(yi)對電(dian)氣系統進(jin)行檢查(cha)，逐(zhu)個排除故障。如(ru)果(guo)溫(wen)度(du)上(shang)升緩慢，檢查(cha)空(kong)(kong)氣循環系統，看看空(kong)(kong)氣循環的風門是(shi)否(fou)正常打開。否(fou)則(ze)，檢查(cha)電(dian)機的空(kong)(kong)氣循環手術(shu)是(shi)否(fou)正常。如(ru)果(guo)溫(wen)度(du)超調(diao)嚴重，需要設置PID整定參數，如(ru)果(guo)溫(wen)度(du)直接升高，保(bao)護(hu)超溫(wen)，如(ru)果(guo)控制器失效，須更換控制儀表(biao)。
2、試(shi)(shi)驗(yan)運(yun)行(xing)中，當高低溫(wen)試(shi)(shi)驗(yan)設備(bei)突然故(gu)(gu)(gu)障(zhang)時，控(kong)制儀表上出現(xian)相應的(de)故(gu)(gu)(gu)障(zhang)顯示提示和聲音報警提示。操作(zuo)者在(zai)操作(zuo)和使(shi)用設備(bei)時，可(ke)根據(ju)故(gu)(gu)(gu)障(zhang)排(pai)除章節快速檢查(cha)故(gu)(gu)(gu)障(zhang)類型(xing)，然后(hou)請人員排(pai)除故(gu)(gu)(gu)障(zhang)，確保(bao)測試(shi)(shi)正常。其(qi)他環境(jing)(jing)試(shi)(shi)驗(yan)設備(bei)在(zai)使(shi)用過程中還會出現(xian)其(qi)他現(xian)象(xiang)，要對這(zhe)些現(xian)象(xiang)進行(xing)分析和消(xiao)除。定期維護環境(jing)(jing)試(shi)(shi)驗(yan)設備(bei)，定期清洗制冷(leng)系統(tong)(tong)冷(leng)凝器，按說明書要求對移(yi)動部件進行(xing)潤滑，定期維護和檢查(cha)電氣(qi)控(kong)制系統(tong)(tong)等.
3、如果高低(di)溫(wen)(wen)度測(ce)(ce)試(shi)儀器(qi)的低(di)溫(wen)(wen)不符合測(ce)(ce)試(shi)指標，則(ze)應觀察(cha)溫(wen)(wen)度變(bian)化，在溫(wen)(wen)度達到一定值后，是(shi)緩(huan)慢(man)下降(jiang)還是(shi)上(shang)升。對于前(qian)者(zhe)，應在低(di)溫(wen)(wen)測(ce)(ce)試(shi)前(qian)檢查工(gong)作室內是(shi)否干燥，然后將測(ce)(ce)試(shi)樣品放(fang)入工(gong)作室內進(jin)(jin)行進(jin)(jin)一步測(ce)(ce)試(shi)。測(ce)(ce)試(shi)樣本(ben)在房間工(gong)作產品是(shi)否放(fang)置太(tai)多,所以工(gong)作室的空(kong)氣不能流通,消除上(shang)述原因后,要(yao)(yao)考慮是(shi)否在制冷系統故(gu)障,所以要(yao)(yao)問儀器(qi)廠家的人員(yuan)進(jin)(jin)行維護。后一種現(xian)象是(shi)設(she)(she)備(bei)(bei)使(shi)(shi)用環境差造(zao)成的。設(she)(she)備(bei)(bei)的環境溫(wen)(wen)度和位置(箱與墻的距(ju)離)應符合要(yao)(yao)求(設(she)(she)備(bei)(bei)使(shi)(shi)用說明書中規定)。
4、在(zai)濕(shi)熱高(gao)低溫箱的(de)試驗(yan)中，實際(ji)濕(shi)度或實際(ji)濕(shi)度與目標濕(shi)度相差較大，數值要(yao)低得(de)多。前(qian)一(yi)(yi)種(zhong)現(xian)(xian)象:可(ke)能(neng)是(shi)(shi)(shi)濕(shi)球(qiu)傳感(gan)器上的(de)紗(sha)布(bu)干(gan)燥(zao)引起的(de)，所以(yi)要(yao)檢(jian)(jian)查濕(shi)球(qiu)傳感(gan)器的(de)水(shui)(shui)(shui)(shui)(shui)(shui)箱是(shi)(shi)(shi)否(fou)缺(que)水(shui)(shui)(shui)(shui)(shui)(shui)。水(shui)(shui)(shui)(shui)(shui)(shui)箱內(nei)水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)由水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)控(kong)(kong)制(zhi)器自動控(kong)(kong)制(zhi)，檢(jian)(jian)查水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)控(kong)(kong)制(zhi)器供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)是(shi)(shi)(shi)否(fou)正(zheng)常(chang)(chang)(chang)，供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)是(shi)(shi)(shi)否(fou)正(zheng)常(chang)(chang)(chang)，水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)控(kong)(kong)制(zhi)器工作是(shi)(shi)(shi)否(fou)正(zheng)常(chang)(chang)(chang)。另一(yi)(yi)種(zhong)可(ke)能(neng)是(shi)(shi)(shi)濕(shi)球(qiu)紗(sha)布(bu)由于使用時間長(chang)或供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)(shui)質純凈而變硬，使紗(sha)布(bu)無法吸水(shui)(shui)(shui)(shui)(shui)(shui)和干(gan)燥(zao)。只要(yao)更換或清洗紗(sha)布(bu)，上述現(xian)(xian)象就可(ke)以(yi)消除。后者的(de)現(xian)(xian)象是(shi)(shi)(shi)加(jia)(jia)(jia)濕(shi)系(xi)統(tong)不工作。檢(jian)(jian)查加(jia)(jia)(jia)濕(shi)系(xi)統(tong)供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)，供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)是(shi)(shi)(shi)否(fou)有(you)一(yi)(yi)定量(liang)的(de)水(shui)(shui)(shui)(shui)(shui)(shui)，加(jia)(jia)(jia)濕(shi)鍋(guo)爐(lu)水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)控(kong)(kong)制(zhi)是(shi)(shi)(shi)否(fou)正(zheng)常(chang)(chang)(chang)，加(jia)(jia)(jia)濕(shi)鍋(guo)爐(lu)水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)是(shi)(shi)(shi)否(fou)正(zheng)常(chang)(chang)(chang)。如以(yi)上各項(xiang)正(zheng)常(chang)(chang)(chang)，應檢(jian)(jian)查電(dian)氣(qi)控(kong)(kong)制(zhi)系(xi)統(tong)，由維(wei)修(xiu)人(ren)員(yuan)進行維(wei)修(xiu)。
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