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如何使用万用表

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正翻译步骤 10

步骤 10
How To Use A Multimeter: 步骤 0 中的图像 1,2 How To Use A Multimeter: 步骤 0 中的图像 2,2
  • Switch on your multimeter, and set the dial to DC voltage mode (indicated by a V with a straight line, or the symbol ⎓).

  • Virtually all consumer electronic devices run on DC voltage. AC voltage—the kind that runs through the lines to your house—is considerably more dangerous, and beyond the scope of this guide.

  • Your multimeter may be auto-ranging or manual ranging. An auto-ranging multimeter (such as the iFixit multimeter) will automatically determine the best measuring range. All you have to do is set what kind of measurement you want to take.

  • If your multimeter is manual ranging, you'll also need to set the correct range for the voltage you expect to measure.

  • Each setting on the dial lists the maximum voltage it can measure. So for example, if you expect to measure more than 2 volts but less than 20, use the 20 volt setting.

  • If you're not sure, start with the highest setting.

打开您的万用表,然后将拨盘拨至直流电压档(图标为带下划线的V,或者为符号 ⎓)

一般来说所有的市售电子设备都由直流电驱动运行。交流电——就是那种经过输电线路至您家中的——因为比直流电更危险,故不在本文讨论范围中

您的万用表可能是自动量程或手动量程。自动量程万用表(如 iFixit 万用表)会自动确定最佳测量量程。您只需设置要进行的测量类型即可。

如果万用表是手动量程,则还需要根据预期测量的电压设置正确的量程。

刻度盘上的每个设置都列出了它能测量的最大电压。例如,如果您希望测量的电压大于 2 伏但小于 20 伏,则使用 20 伏设置。

如果您不确定,请使用万用表的最大量程测试

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