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咕咚毛球
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樓主  發(fā)表于: 2016-05-29 20:25
使用HIOKI萬(wàn)用表測24V電壓時(shí)出現以下兩種情況
1：萬(wàn)用表一直有“滴滴聲”光標從左到右，但是沒(méi)有數值？
2：在測量不同24V時(shí)候，有時(shí)只是顯示24V,有時(shí)顯示24V前面還有一個(gè)“B”，這是什么意思？
yishihu
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1樓  發(fā)表于: 2016-05-30 10:05
電池電量不足要更換了        

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