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PA1000 - Not reading standby power with LabVIEW

PA1000, PA3000, PA4000
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Joined: January 16th, 2017, 4:34 am
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PA1000 - Not reading standby power with LabVIEW

Post by bradcoxmd » January 16th, 2017, 4:41 am


I am coding a program in LabVIEW 2016 to run DoE Level 6 Efficiency test on a USB Power Supply. I'm using the PA1000 with a breakout box to measure my input power. The meter will read input power fine at 100%, 75%, and 50% output load. But for whatever reason sometimes at 25% and at no load the Tektronix will display 0 power. Sometimes turning the load on and off will fix it. I've also notice that it seems to not work while the LabVIEW program is pulling data from it but only at those low values. Once the LabVIEW program ends and the load is at 0 Amps it display ~0.1W fine but won't display it while the LabVIEW program is running.

Any ideas? Any help would be much appreciated.



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