It can determine equipment whole or local is in normal or abnormal, found early fault and the reasons, and can forecast fault development trend.
它可以确定设备整体或局部是正常还是异常，能早期发现故障及其原因，并能预报故障发展趋势。
Meanwhile, the clamp circuit will limit the output voltage or current at a fixed value when they are abnormal that caused by a DUT short circuit or other fault in order to protect the device.
当被测dut发生短路或其他异常导致电流或电压过高时，钳位电路会将输出电压或电流限制在一个固定值上，以保护器件不被损坏。
The fault can be found without any inspection, but as the system is working, inspection should be made to judge whether the system is in normal state or abnormal state.
当系统故障时不需检测就能知道，而当系统工作时必须检测它的诊断参数才能知道它是正常还是异常。
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