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万用表怎么机械调零
更新时间: 2020-09-18 00:00:00  

机械调零方法:把两只表笔分开,用一把大小合适的一字形螺丝刀调整位于表盘中间的机械调零螺钉,直到指针与零刻度线重合。

机械调零时应注意:

1、机械调零螺钉千万不要乱调,先仔细观察清楚,如果必须要调,最多左右调半圈,使表针回零后即可;

2、机械调零不是每次使用前都要调,它与欧姆调零是两码事。

关键词: 怎么 机械

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