恒溫水(shui)浴振(zhen)蕩器具有結構合理、操作(zuo)簡便、穩定性能(neng)高等(deng)特點(dian)，是實驗室(shi)工作(zuo)人員得(de)心應手的理想設備。

恒溫水浴振蕩器常見故障及處理

1、故障(zhang)現象：恒溫(wen)水浴振(zhen)蕩器加熱正常，振(zhen)蕩無法工作。

解決方法：① 打(da)開(kai)控(kong)制(zhi)柜(ju)側板(ban)(ban)，接通電(dian)(dian)(dian)(dian)(dian)源，將溫控(kong)設定為(wei)0度（即(ji)不加熱狀態(tai)），打(da)開(kai)振蕩開(kai)關，將速度調至(zhi)最(zui)高(gao)；② 用萬用表（交流250檔）測量變壓(ya)(ya)(ya)器有(you)(you)(you)無(wu)(wu)220V電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)輸(shu)(shu)(shu)入(ru)，若無(wu)(wu)則開(kai)關壞(huai)，反之，測量變壓(ya)(ya)(ya)器有(you)(you)(you)無(wu)(wu)12V電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)輸(shu)(shu)(shu)出(chu)（用交流50V檔），無(wu)(wu)則變壓(ya)(ya)(ya)器壞(huai)；③ 此(ci)時切(qie)勿(wu)輕易(yi)更(geng)換變壓(ya)(ya)(ya)器，該(gai)情(qing)(qing)況多為(wei)線路板(ban)(ban)中整(zheng)流部(bu)分或電(dian)(dian)(dian)(dian)(dian)機(ji)出(chu)現(xian)短路故障(zhang)（出(chu)現(xian)此(ci)種(zhong)現(xian)象，變壓(ya)(ya)(ya)器外觀(guan)有(you)(you)(you)燒焦現(xian)象），在排除以上情(qing)(qing)況，更(geng)換即(ji)可；④ 12V電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)正(zheng)常，檢查有(you)(you)(you)無(wu)(wu)直流12電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)（直流50V檔），沒有(you)(you)(you)則整(zheng)流橋斷路，更(geng)換；⑤ 有(you)(you)(you)則檢查有(you)(you)(you)無(wu)(wu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)輸(shu)(shu)(shu)出(chu)至(zhi)電(dian)(dian)(dian)(dian)(dian)機(ji)（5-8V左右），有(you)(you)(you)則電(dian)(dian)(dian)(dian)(dian)機(ji)壞(huai)或由(you)于儀器長(chang)時間沒有(you)(you)(you)使(shi)用，機(ji)械部(bu)分銹死，沒有(you)(you)(you)則控(kong)制(zhi)板(ban)(ban)中大功率(lv)管壞(huai)。

2、故障現(xian)象(xiang)：加熱(re)正常，振蕩速度變慢。

解(jie)決方法：打開(kai)控制柜側(ce)板，接(jie)通電(dian)源，將(jiang)溫控設定為0度（即不加(jia)熱(re)狀態），打開(kai)振(zhen)蕩開(kai)關，將(jiang)速(su)度調(diao)至最(zui)高，找到速(su)度控制板上的兩個可調(diao)電(dian)阻，逆時(shi)針調(diao)整右邊(bian)的即可解(jie)決。

3、故障(zhang)現象：恒溫水浴振(zhen)蕩器不加熱，振(zhen)蕩正(zheng)常。

1）顯示(shi)正常，設定正常，無(wu)法加(jia)熱(re)(re)。該(gai)故(gu)障解決方法：接通電(dian)源，打開(kai)電(dian)源開(kai)關，調整設定溫度高于實際測量(liang)溫度，檢查(cha)溫控儀(yi)有(you)(you)無(wu)輸出指(zhi)示(shi)，有(you)(you)則測量(liang)加(jia)熱(re)(re)管(guan)是否(fou)有(you)(you)電(dian)壓(ya)(ya)輸入，有(you)(you)則加(jia)熱(re)(re)管(guan)壞(huai)，更換即可，沒(mei)有(you)(you)電(dian)壓(ya)(ya)輸入加(jia)熱(re)(re)管(guan)，多為繼電(dian)器發生故(gu)障。若溫控儀(yi)沒(mei)有(you)(you)電(dian)壓(ya)(ya)輸出指(zhi)示(shi)，建(jian)議更換溫控儀(yi)。

2）溫控儀顯示LLL或999（根據廠(chang)家不同(tong)，參數有所不同(tong)）該故障為溫度傳(chuan)感器(qi)斷路或短路，更(geng)換傳(chuan)感器(qi)即可(ke)。

3）溫度不受(shou)控制繼電器(qi)壞或傳感器(qi)受(shou)潮。