恒溫恒濕試驗箱，主要是用於做高溫
，低溫
，濕度試驗，測試電子電工
，LED光guang電dian
，化hua工gong
，塑su膠jiao等deng產chan品pin的de可ke靠kao性xing能neng，提ti高gao產chan品pin質zhi量liang。但dan是shi在zai運yun行xing過guo程cheng中zhong
，如ru果guo遇yu到dao恒heng溫wen恒heng濕shi試shi驗yan箱xiang溫wen度du達da不bu到dao指zhi標biao
，低di溫wen降jiang溫wen慢man，濕shi度du不bu能neng按an照zhao預yu定ding運yun行xing三san大da故gu障zhang
，勤qin卓zhuo環huan測ce科ke技ji根gen據ju多duo年nian的de研yan發fa生sheng產chan經jing驗yan，對dui此ci作zuo出chu以yi下xia詳xiang細xi分fen析xi
，以yi供gong恒heng溫wen恒heng濕shi試shi驗yan箱xiang用yong戶hu參can考kao借jie鑒jian。
 

      故障一：恒溫恒濕試驗箱在濕熱試驗過程中
，濕度達不到指定要求，是哪裏出現問題?

      分析：恒溫恒濕試驗箱在做濕熱試驗中
，出現實際濕度會達到100%或者實際濕度與目標濕度相差很大，數值低得很多，前者的現象：kenengshishiqiuchuanganqishangdeshabuganzaoyinqi
，najiuyaojianzhashiqiuchuanganqideshuicaozhongshifouqueshui，shuicaozhongdeshuiweishiyouyishuiweikongzhiqizidongkongzhide，zhashuiweikongzhiqigongshuixitongshifougongshuizhengchang，shuiweikongzhiqigongzuoshifouzhengchang。lingyizhongkenengjiushishiqiushabuyinshiyongshijianchang，huogongshuishuizhichunjingdudeyuanyin
，huishishabubianying
，shishabuwufaxishoushuifenerganzao，zhiyaogenghuanhuoqingxishabujikepaichuyishangxianxiang。houzhedexianxiangzhuyaoshihengwenhengshishiyanxiangdejiashixitongbugongzuo
，zhakanjiashixitongdegongshuixitong，gongshuixitongneishifouyouyidingdeshuiliang，kongzhijiashiguolushuiweideshuiweikongzhishifouzhengchang，jiashiguoluneideshuiweishifouzhengchang。ruyishangyiqiedouzhengchang
，najiuyaojianzhadianqikongzhixitong，zheyaoqingzhuanyeweixiurenyuanjinxingjianxiu。
 

      故障二，恒溫恒濕試驗箱低溫達不到指標，降溫很慢，如何解決?

       分析：danghengwenhengshishiyanxiangdiwendabudaoshiyandezhibiao
，nanijiuyaoguanchawendudebianhua，shiwendujiangdehenman，haishiwendudaoyidingzhihouwenduyouhuishengdequshi
，qianzhejiuyaojianzhayixia
，zuodiwenshiyanqianshifoujianggongzuoshihonggan，shigongzuoshibaochiganzaohouzaijiangshiyanyangpinfangrugongzuoshineizaizuoshiyan

，gongzuoshineideshiyanyangpinshifoufangzhideguoduo


，shigongzuoshineidefengbunengchongfenxunhuan，zaipaichushangshuyuanyinhou，jiuyaokaolvshifoushizhilengxitongzhongdeguzhangle，zheyangjiuyaoqingchangjiadezhuanyerenyuanjinxingjianxiu。houzhedexianxiangshihengwenhengshishiyanxiangshebeideshiyonghuanjingbuhaosuozhi，shebeifangzhidehuanjingwendu，fangzhideweizhi(箱體後與牆的距離)要滿足要求(在設備操作使用說明中都有規定)。
 

      故障三

，恒溫恒濕試驗箱在運行過程中，溫度變化達不到試驗溫度值，如何解決?

      分析：在(zai)高(gao)溫(wen)試(shi)驗(yan)中(zhong)
，如(ru)溫(wen)度(du)變(bian)化(hua)達(da)不(bu)到(dao)試(shi)驗(yan)溫(wen)度(du)值(zhi)時(shi)，可(ke)以(yi)檢(jian)查(zha)電(dian)器(qi)係(xi)統(tong)，逐(zhu)一(yi)排(pai)除(chu)故(gu)障(zhang)。如(ru)恒(heng)溫(wen)恒(heng)濕(shi)試(shi)驗(yan)箱(xiang)溫(wen)度(du)升(sheng)得(de)很(hen)慢(man)，就(jiu)要(yao)查(zha)看(kan)風(feng)循(xun)環(huan)係(xi)統(tong)，看(kan)一(yi)下(xia)風(feng)循(xun)環(huan)的(de)調(tiao)節(jie)擋(dang)板(ban)是(shi)否(fou)開(kai)啟(qi)正(zheng)常(chang)，反(fan)之(zhi)，就(jiu)檢(jian)查(zha)風(feng)循(xun)環(huan)的(de)電(dian)機(ji)運(yun)轉(zhuan)是(shi)否(fou)正(zheng)常(chang)。如(ru)溫(wen)度(du)過(guo)衝(chong)厲(li)害(hai)那(na)麼(me)就(jiu)需(xu)要(yao)整(zheng)定(ding)PID的設置參數。如果溫度直接上升，過溫保護，那麼控製器出故障
，須更換控製儀表。

      恒heng溫wen恒heng濕shi試shi驗yan箱xiang
，因yin為wei有you使shi用yong時shi限xian
，所suo以yi運yun行xing時shi間jian超chao長chang的de恒heng溫wen恒heng濕shi試shi驗yan箱xiang，難nan免mian會hui出chu現xian一yi些xie各ge種zhong各ge樣yang的de小xiao故gu障zhang
，平ping時shi注zhu意yi定ding期qi保bao養yang和he維wei護hu，一yi般ban都dou可ke以yi大da部bu分fen避bi免mian。如ru果guo遇yu到dao較jiao大da技ji術shu難nan題ti，可ke以yi及ji時shi聯lian係xi恒heng溫wen恒heng濕shi試shi驗yan箱xiang生sheng產chan廠chang家jia，尋xun求qiu解jie決jue。