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當前位置:首頁(yè)  >  技術(shù)文章  >  鼓風(fēng)干燥箱的常見(jiàn)故障及處理方法

鼓風(fēng)干燥箱的常見(jiàn)故障及處理方法

更新時(shí)間:2014-03-12      點(diǎn)擊次數:1178
 

故障現象

故障原因推測

故障處理辦法

開(kāi)機無(wú)電(指示燈不亮)

電源插座無(wú)電或接頭接觸不良

修復

箱子電源線(xiàn)斷或未插好插頭

修復、重插

電源開(kāi)關(guān)壞(或未開(kāi))

更換、開(kāi)電源開(kāi)關(guān)

保險絲斷

若換后通電仍燒斷,應檢查開(kāi)關(guān)、電機、加熱器、控溫儀等部件是否有短路或通殼(絕緣電阻為0),修復后在開(kāi)機

儀表顯示

傳感器壞或接線(xiàn)斷

修復或更換Pt100

“口口口口”

測量值超過(guò)設定量限

修改rH參數值

不升溫

是否設置了定時(shí)?并且定時(shí)時(shí)間到

參看“定時(shí)功能的使用”

控溫儀壞(無(wú)輸出)

HEAT燈不亮或3061壞,更換

雙向可控硅不導通

更換(型號:BTA16或BTA26)

三相電源缺相或接觸器故障

檢查三相電源、開(kāi)關(guān)重新開(kāi)關(guān)一次、更換接觸器

加熱管接線(xiàn)脫落或短路

修復或更換

溫控不準(靜差大)或溫度一直上升,失控(蜂鳴器響)

HEAT燈不亮,溫度上升

可控硅壞,更換

風(fēng)機未開(kāi)或風(fēng)機壞(不轉)

打開(kāi)或更換風(fēng)機

使用環(huán)境溫度與設置溫度溫差過(guò)小

zui低控溫溫度RT+10℃

Pt100接觸不良,阻值變大

重新接線(xiàn)

Ar、p等參數設置不正確

重新設置

Pb、pk調整不正確

重新調整設置pb,pk

某一組加熱器或加熱板壞

更換

噪聲異?;蛟肼暣?/span>

風(fēng)機軸承壞,缺潤滑油

加潤滑油、更換風(fēng)機

擦后風(fēng)道板

修復

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