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ADE7880 - Calibration / input voltage range

Question asked by carlos.affonso on Jun 2, 2016
Latest reply on Jun 23, 2016 by nchandra

Hello,

 

     We are making some tests with ADE7880 evalboard, specially on calibration procedures. We have done all procedures described on appnote AN-1171, considering the basic values of  220V and 10A. The error result at calibration point is OK (<0,1%). After the calibration , we are changing the voltage input value (for example, from 220 to 120V), and we are seeing that error variation is too big (around 0,5%).

 

     Is there any dependency on calibration and input voltage value?

 

      Best Regards,

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