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修改时间 11-10-2014 03:26 AM
你好：
我有一张PXI-4071的DMM ,用MAX的NI-DMM SOFT FRONT PANEL程序时，显示OVLD V DC,正常的都是.显示数值0.00000000 V DC，请问这是什么引起的？是这张卡坏了吗？
修改时间 11-10-2014 09:21 PM
出现OVLD的原因应该是过量程了。你需要检查下量程设置有没有问题，另外信号幅值有没有问题，特别注意有没有出现被测电压的过冲和尖峰等现象
修改时间 11-12-2014 01:11 AM
DMM线都没接，没有量测动作的时情况下，打开程序就直接OVLD,如下图所示
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