When measuring the charge on a device such as a capacitor, it's important to disable the zero check of the electrometer first, and then connect the capacitor to the high impedance input terminal.
在测量一个器件，如电容器上的电荷时，重要之点是要首先关闭静电计的零点检查功能，然后再将电容器连到高阻抗输入端。
Just before the voltage source is turned on, disable the meter's zero check and suppress the charge reading by using the REL function to zero the display.
在电压源即将打开之前，关闭仪器的零点检查功能并使用REL功能抑制电荷读数，使显示为零。
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