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如何正确使用万用表的欧姆档
更新时间: 2020-09-24 00:00:00  

万用表的欧姆档用法:

1、档位开关:搬到欧姆档的需要档位;

2、指针调零:两个表笔短接,调整调零旋钮,让指针指在零的位置;

3、连接待测电阻测量:表盘电阻尺读数,乘以档位开关倍数,乘积为电阻值;

4、指针处于中间附近比较精确,可以换挡试验;

5、两手不要接触电阻,减小测量误差;

6、测完后万用表档位调到交流电压的最高档,或断开档。

关键词: 如何 正确 使用 欧姆

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