天气预报15天查询> 其他> 数字万用表怎么调零

数字万用表怎么调零

更新时间: 2020-09-23 00:00:00     

一般中低档万用表,本身没有调零功能,但仍有其他处理方向:

1、拔下表笔线组,清洁表笔表面接点、与万用表插头表面接点;

2、重新插好表笔;

3、双表笔相接时确实压紧,确保连接,并可稍动一下接触位置,看读数有无变化;

4、另一容易出问题处是表棒与线的内部接点,此处也可压一下、动一下;

5、有的表笔线组本身电阻太大,请更换本身电阻小的好表笔。

关键词: 数字 怎么

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-2734997/ | 耗时:0.2906 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2734997 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2734997 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2734997 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1087837,1118869,1128021,1062324,1099707,1098071,1083952,1115529,1095007,1122256,1048968,1060721,1076209,1111384,1065125,1034501,1097575,1062094,1057010,1094395,1093589,1016286,1119900,1126404,1115591,1124945,1125019,1051711,1110728,1112943) ORDER BY field (ArticleID,1087837,1118869,1128021,1062324,1099707,1098071,1083952,1115529,1095007,1122256,1048968,1060721,1076209,1111384,1065125,1034501,1097575,1062094,1057010,1094395,1093589,1016286,1119900,1126404,1115591,1124945,1125019,1051711,1110728,1112943)