試驗中常(chang)見的4個(ge)問(wen)題的解(jie)決(jue)

1、恒溫(wen)恒濕試(shi)驗箱(xiang)在試(shi)驗運行(xing)(xing)過程中突(tu)然(ran)出(chu)現(xian)故障(zhang)(zhang)時，控制儀表(biao)上出(chu)現(xian)對(dui)應的(de)(de)故障(zhang)(zhang)顯示提示并有(you)聲訊報警(jing)提示。操作人(ren)員(yuan)可(ke)以對(dui)照設備的(de)(de)操作使(shi)用中的(de)(de)故障(zhang)(zhang)排除(chu)一(yi)章中快速檢查出(chu)屬于哪一(yi)類故障(zhang)(zhang)，即(ji)可(ke)請(qing)專業人(ren)員(yuan)快速排除(chu)故障(zhang)(zhang)，以確保試(shi)驗的(de)(de)正常進行(xing)(xing)。其它(ta)環境(jing)試(shi)驗設備在使(shi)用中還會有(you)其它(ta)的(de)(de)現(xian)象(xiang)，那(nei)就要(yao)具體(ti)現(xian)象(xiang)，具體(ti)分析(xi)和排除(chu)。

2、在高溫試(shi)驗中，如溫度變化達不到(dao)試(shi)驗溫度值時，可以檢(jian)查電器(qi)系(xi)統(tong)(tong)，逐一(yi)排除故障。如恒溫恒濕試(shi)驗箱溫度升得很慢，就要查看風(feng)循(xun)環(huan)(huan)系(xi)統(tong)(tong)，看一(yi)下風(feng)循(xun)環(huan)(huan)的(de)調(diao)節擋板(ban)是否(fou)開啟正(zheng)常，反(fan)之(zhi)，就檢(jian)查風(feng)循(xun)環(huan)(huan)的(de)電機運轉(zhuan)是否(fou)正(zheng)常。如溫度過沖厲害那么(me)就需要整(zheng)定(ding)PID的(de)設置參數。如果溫度直接上升，那么(me)控制(zhi)器(qi)出故障，須更(geng)換控制(zhi)儀表。

3、恒(heng)(heng)(heng)溫恒(heng)(heng)(heng)濕(shi)(shi)(shi)試(shi)驗(yan)箱在做濕(shi)(shi)(shi)熱試(shi)驗(yan)中，出現(xian)實際濕(shi)(shi)(shi)度(du)會(hui)(hui)達到100%或者實際濕(shi)(shi)(shi)度(du)與目標(biao)濕(shi)(shi)(shi)度(du)相差很大(da)，數值低(di)得很多，前者的(de)(de)(de)(de)現(xian)象：可(ke)能是(shi)(shi)濕(shi)(shi)(shi)球(qiu)(qiu)傳感(gan)器(qi)上(shang)的(de)(de)(de)(de)紗(sha)布(bu)干燥(zao)(zao)引起，那就要(yao)檢查濕(shi)(shi)(shi)球(qiu)(qiu)傳感(gan)器(qi)的(de)(de)(de)(de)水(shui)(shui)(shui)(shui)槽中是(shi)(shi)否(fou)(fou)缺水(shui)(shui)(shui)(shui)，水(shui)(shui)(shui)(shui)槽中的(de)(de)(de)(de)水(shui)(shui)(shui)(shui)位(wei)是(shi)(shi)由一水(shui)(shui)(shui)(shui)位(wei)控(kong)(kong)制(zhi)器(qi)自動控(kong)(kong)制(zhi)的(de)(de)(de)(de)，查水(shui)(shui)(shui)(shui)位(wei)控(kong)(kong)制(zhi)器(qi)供(gong)(gong)水(shui)(shui)(shui)(shui)系(xi)(xi)統(tong)(tong)是(shi)(shi)否(fou)(fou)供(gong)(gong)水(shui)(shui)(shui)(shui)正(zheng)常，水(shui)(shui)(shui)(shui)位(wei)控(kong)(kong)制(zhi)器(qi)工作是(shi)(shi)否(fou)(fou)正(zheng)常。另(ling)一種可(ke)能就是(shi)(shi)濕(shi)(shi)(shi)球(qiu)(qiu)紗(sha)布(bu)因使用時(shi)間(jian)長，或供(gong)(gong)水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質(zhi)純凈度(du)的(de)(de)(de)(de)原因，會(hui)(hui)使紗(sha)布(bu)變(bian)硬，使紗(sha)布(bu)無法吸(xi)收水(shui)(shui)(shui)(shui)份而干燥(zao)(zao)，只要(yao)更換(huan)或清(qing)洗紗(sha)布(bu)即可(ke)排(pai)除以(yi)上(shang)現(xian)象。后(hou)者的(de)(de)(de)(de)現(xian)象主要(yao)是(shi)(shi)恒(heng)(heng)(heng)溫恒(heng)(heng)(heng)濕(shi)(shi)(shi)試(shi)驗(yan)箱的(de)(de)(de)(de)加(jia)(jia)濕(shi)(shi)(shi)系(xi)(xi)統(tong)(tong)不(bu)工作，查看加(jia)(jia)濕(shi)(shi)(shi)系(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)供(gong)(gong)水(shui)(shui)(shui)(shui)系(xi)(xi)統(tong)(tong)，供(gong)(gong)水(shui)(shui)(shui)(shui)系(xi)(xi)統(tong)(tong)內是(shi)(shi)否(fou)(fou)有一定(ding)的(de)(de)(de)(de)水(shui)(shui)(shui)(shui)量，控(kong)(kong)制(zhi)加(jia)(jia)濕(shi)(shi)(shi)鍋爐水(shui)(shui)(shui)(shui)位(wei)的(de)(de)(de)(de)水(shui)(shui)(shui)(shui)位(wei)控(kong)(kong)制(zhi)是(shi)(shi)否(fou)(fou)正(zheng)常，加(jia)(jia)濕(shi)(shi)(shi)鍋爐內的(de)(de)(de)(de)水(shui)(shui)(shui)(shui)位(wei)是(shi)(shi)否(fou)(fou)正(zheng)常。如以(yi)上(shang)一切都正(zheng)常，那就要(yao)檢查電器(qi)控(kong)(kong)制(zhi)系(xi)(xi)統(tong)(tong)，這要(yao)請(qing)專(zhuan)業維修人員進行(xing)檢修。

4、恒(heng)溫恒(heng)濕試(shi)(shi)(shi)驗箱(xiang)(xiang)低溫達不(bu)到(dao)試(shi)(shi)(shi)驗的(de)(de)(de)(de)指標，那你就(jiu)要(yao)(yao)觀察溫度(du)(du)的(de)(de)(de)(de)變化，分清楚是(shi)(shi)溫度(du)(du)降的(de)(de)(de)(de)很慢，還(huan)是(shi)(shi)溫度(du)(du)到(dao)一定(ding)值后(hou)溫度(du)(du)有回升的(de)(de)(de)(de)趨勢。前者就(jiu)要(yao)(yao)檢查一下，做低溫試(shi)(shi)(shi)驗前是(shi)(shi)否將工作(zuo)(zuo)(zuo)室烘干，使(shi)工作(zuo)(zuo)(zuo)室保持干燥(zao)后(hou)再將試(shi)(shi)(shi)驗樣品(pin)放入工作(zuo)(zuo)(zuo)室內(nei)再做試(shi)(shi)(shi)驗，工作(zuo)(zuo)(zuo)室內(nei)的(de)(de)(de)(de)試(shi)(shi)(shi)驗樣品(pin)是(shi)(shi)否放置的(de)(de)(de)(de)過多，使(shi)工作(zuo)(zuo)(zuo)室內(nei)的(de)(de)(de)(de)風不(bu)能充分循(xun)環，在排除上(shang)述(shu)原因后(hou)，就(jiu)要(yao)(yao)考慮是(shi)(shi)否是(shi)(shi)制冷系統(tong)中的(de)(de)(de)(de)故障了，這樣就(jiu)要(yao)(yao)請廠家的(de)(de)(de)(de)專(zhuan)業人員(yuan)進行檢修。后(hou)者的(de)(de)(de)(de)現(xian)象是(shi)(shi)恒(heng)溫恒(heng)濕試(shi)(shi)(shi)驗箱(xiang)(xiang)設備(bei)的(de)(de)(de)(de)使(shi)用環境不(bu)好所致(zhi)，設備(bei)放置的(de)(de)(de)(de)環境溫度(du)(du)，放置的(de)(de)(de)(de)位置（箱(xiang)(xiang)體后(hou)與墻的(de)(de)(de)(de)距離）要(yao)(yao)滿足要(yao)(yao)求（在設備(bei)操作(zuo)(zuo)(zuo)使(shi)用說(shuo)明中都有規(gui)定(ding)）。