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电压电流过量会造成数字万用表损坏


DIANYADIANLIUGUOLIANGHUIZAOCHENGSHUZIWANYONGBIAOSUNHUAI

  ZUIPUTONGDESHUZIWANYONGBIAOYIBANJUYOUDIANZUCELIANG、TONGDUANSHENGXIANGJIANCE、ERJIGUANZHENGXIANGDAOTONGDIANYACELIANG。JIAOLIUZHILIUDIANYADIANLIUCELIANG、SANJIGUANFANGDABEISHUJIXINGNENGCELIANGDENG。YOUXIEZEZENGJIALEDIANRONGRONGLIANGCELIANG、PINLVCELIANG、WENDUCELIANG、SHUJUJIYIJIYUYINBAOSHUDENGGONGNENG,JISHIJIJIANCEGONGZUODAILAIHENDADEFANGBIAN。DANSHI,SHUZIFANGYONGBIAOYOUYUSHIYONGBUDANG,ZAISHIJIJIANCESHIYIZAOCHENGBIAONEIYUANJIANSUNHUAI,CHANSHENGGUZHANG。SHUZIFANGYONGBIAOZAISHIYONGZHONGDEZHUYISHIXIANG,GONGCHUXUECHUYONGZHECANKAO,YIJINLIANGFANGZHISHUZIWANYONGBIAODESUNHUAI。

  数字万用表故障原因及防范措施:

  1、DUOSHUSHUZIWANYONGBIAODEZHILIUDIANYASHANGXIANLIANGCHENGWEI1000V,YINCICELIANGZHILIUDIANYASHI,ZUIGAODIANYAZHIZAI1000VYIXIA,YIBANBUHUISUNHUAIWANYONGBIAO。RUGUOCHAOCHU1000V,ZEHENYOUKENENGZAOCHENGWANYONGBIAOSUNHUAI。DANSHI,BUTONGDESHUZIWANYONGBIAODEKECELIANGDIANYASHANGXIANZHIKENENGYOUSUOBUTONG。RUGUOCELIANGDEDIANYACHAOCHULIANGCHENG,KECAIQUDIANZUJIANGYADEFANGFAJIAYICELIANG。LINGWAI,ZAICELIANG40O~1000VDEZHILIUGAODIANYASHI,BIAOBIYUCELIANGCHUYIDINGYAOJIECHUHAO,BUNENGYOURENHEDOUDONG,FOUZE,CHULEKENENGHUIZAOCHENGWANYONGBIAOSUNHUAIERSHICELIANGBUZHUNQUEWAI,YANZHONGSHIHAIKESHIWANYONGBIAOWURENHEXIANSHI。

  2、ZAICELIANGDIANZUSHI,YINGZHUYIYIDINGBUYAODAIDIANCELIANG。

  3、SHUZIWANYONGBIAOSUNHUAIZAIDADUOSHUQINGKUANGXIASHIYINCELIANGDANGWEICUOWUZAOCHENG,RUZAICELIANGJIAOLIUSHIDIANSHI,CELIANGDANGWEIXUANZEZHIYUDIANZUDANG,ZHEIZHONGQINGKUANGXIABIAOBIYIDANJIECHUSHIDIAN,SHUNJIANJIKEZAOCHENGWANYONGBIAONEIBUYUANJIANSUNHUAI。YINCI,ZAISHIYONGWANYONGBIAOCELIANGQIANYIDINGYAOXIANJIANCHACELIANGDANGWEISHIFOUZHENGQUE。ZAISHIYONGWANBI,JIANGCELIANGXUANZEZHIYUJIAOLIU750VHUOZHEZHILIU1000VCHU,ZHEIYANGZAIXIACICELIANGSHIWULUNWUCESHENMECANSHU,DOUBUHUIYINQISHUZIWANYONGBIAOSUNHUAI.

  4、YOUXIESHUZIWANYONGBIAOSUNHUAISHIYOUYUCELIANGDEDIANYADIANLIUCHAOGUOLIANGCHENGFANWEISUOZAOCHENGDE.RUZAIJIAOLIU20VDANGWEICELIANGSHIDIAN,HENYIYINQISHUZIWANYONGBIAOJIAOLIUFANGDADIANLUSUNHUAI,SHIWANYONGBIAOSHIQUJIAOLIUCELIANGGONGNENG。ZAICELIANGZHILIUDIANYASHI,SUOCEDIANYACHAOCHUCELIANGLIANGCHENG,TONGYANGYIZAOCHENGBIAONEIDIANLUGUZHANG。ZAICELIANGDIANLIUSHIRUGUOSHIJIDIANLIUZHICHAOGUOLIANGCHENG,YIBANJINYINQIWANYONGBIAONEIDEBAOXIANSISHAODUAN,BUHUIZAOCHENGQITASUNHUAI。SUOYIZAICELIANGDIANYACANSHUSHI,RUGUOBUZHIDAOSUOCEDIANYADEDAZHIFANWEI,YINGXIANBACELIANGDANGZHIYUZUIGAODANG,TONGGUOCELIANGQIZHIHOUZAIHUANDANGCELIANG,YIDEDAOBIJIAOJINGQUEDESHUZHI。RUGUOSUOYAOCELIANGDEDIANYASHUZHIYUANCHAOCHUWANYONGBIAOSUONENGCELIANGDEZUIDALIANGCHENG,YINGLINGPEIGAOZUCELIANGBIAOBI。RUJIANCEHEIBAICAIDIANDEDIERYANGJIGAOYAJIJUJIAOGAOYA。

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