電子天平打開后，如果其顯示屏上沒有顯示，說明電子秤出現了故障。

失敗原因(yin)：天平(ping)沒(mei)有(you)真(zhen)正打(da)開；無電(dian)源或(huo)臨時停電(dian)；電(dian)源插頭接觸不(bu)良；保險絲(si)損(sun)壞；變壓(ya)(ya)器整流器損(sun)壞；電(dian)子天平(ping)電(dian)壓(ya)(ya)塊選擇不(bu)當(dang)；電(dian)源電(dian)壓(ya)(ya)瞬間受到(dao)干擾(rao)；顯示器損(sun)壞；電(dian)子天平(ping)A/D轉換器可能有(you)問(wen)題；電(dian)子天平(ping)的微處理器可能有(you)故障。

調整方法：

再(zai)次打(da)開電(dian)(dian)(dian)(dian)子天(tian)平(ping)；用(yong)電(dian)(dian)(dian)(dian)壓(ya)表檢查(cha)(cha)外部電(dian)(dian)(dian)(dian)源(yuan)(yuan)。確認沒電(dian)(dian)(dian)(dian)后(hou)，就關(guan)機等電(dian)(dian)(dian)(dian)；仔細(xi)檢查(cha)(cha)電(dian)(dian)(dian)(dian)源(yuan)(yuan)插頭，使其接觸良好。如(ru)有必(bi)要，使用(yong)萬用(yong)表檢查(cha)(cha)電(dian)(dian)(dian)(dian)線(xian)是否斷裂。更換(huan)(huan)同規格同型號的(de)(de)保(bao)險絲；修理(li)或(huo)更換(huan)(huan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)變壓(ya)器整流器；正確選擇電(dian)(dian)(dian)(dian)子天(tian)平(ping)的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)塊(kuai)，使其與當地電(dian)(dian)(dian)(dian)壓(ya)一(yi)致；如(ru)果電(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)壓(ya)過低，暫時關(guan)機，待(dai)電(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)壓(ya)穩定后(hou)再(zai)打(da)開天(tian)平(ping)；修理(li)或(huo)更換(huan)(huan)電(dian)(dian)(dian)(dian)子天(tian)平(ping)的(de)(de)顯示器；檢修或(huo)更換(huan)(huan)電(dian)(dian)(dian)(dian)子天(tian)平(ping)的(de)(de)A/D轉換(huan)(huan)器；修理(li)或(huo)更換(huan)(huan)電(dian)(dian)(dian)(dian)子天(tian)平(ping)的(de)(de)微處理(li)器。

電(dian)子(zi)天(tian)平的顯(xian)示屏(ping)只顯(xian)示下半部(bu)分，說(shuo)明天(tian)平有問題，應立即修理。

故障原因：稱重系統有(you)摩擦卡阻現象；秤盤未安裝或安裝錯(cuo)誤；打開天平后，物品從(cong)秤盤中取出。

調整方法：檢查稱(cheng)重系統，排除卡澀等故(gu)障；安裝(zhuang)秤盤。如果(guo)幾套同(tong)時(shi)安裝(zhuang)，不要裝(zhuang)錯。打開(kai)天平(ping)后，將(jiang)物品從(cong)秤盤中(zhong)取出，關(guan)機(ji)再開(kai)機(ji)，按規(gui)范操作。