使用这个方法，用户输入测试电压、测量时间和重复次数。

With this method, the user enters the test voltage, measurement time and the number of iterations.

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测试的最低输入电压和恒定电阻负载。

Test by minimum Vin and constant resistor load.

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测试的最低输入电压和恒定电阻负载。

Test by minimum Vin and constant resistive load.

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应该在最大交流输入电压270伏和轻载，空载下测试。

Note: The power supply shall be test at max AC voltage (270Vac) and min load or no load.

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应该在最大交流输入电压270伏和轻载，空载下测试。

Note: The power supply shall be test at max AC voltage (270Vac) and min load or no load.

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