You should be only between test site A and B bond sex of a resistor is laden, reoccupy number volmeter (DVM) measure this resistance the voltage of two end but calibration current source.

• 你只要在测试点 A 和 B 之间跨接一个电阻性负载，再用数字电压表（DVM）测量该电阻两头的电压就可校准电流源。