本帖最后由 wbxms 于 2016-9-29 15:42 编辑
查了一下手册,
Hi-Z voltage measurement
voltages between 1uV and ±2.1volts can be measured at an input impedance greater than 1000 MΩ thus eliminating loading errors in very high impedance circuitry.
to do this ,depress the V and A buttons simultaneously and select the 200 mV or 2000mV range.
N.B. with no input connected the display will show a random reading.
大意是:
高阻抗电压测量
当电压在1uv±2.1volts之间时,可以在输入阻抗大于1000MΩ时消除高阻抗电路的负载测量误差。
为此,同时按V和A按钮,选择200 mV或2000mv量程。
注意,如果输入端没有连接,将显示一个随机数。
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