I am working on 3 phase energy meter(ADE7880).
I am doing energy calibration using energy registers.
1. In flow am not understood, how checking of meter accuracy meet specification over PF.(marked with yellow color).
I am directly reading APF register having 230 V source and 60 milli amp. current (resistive load 15 Watt) .
APF = 0x7233 (29235). Is this value is correct for resistive load? and How to convert this value into real world between -1 to 1.
2.Currently am using Resistive load(Bulb).
when it is required xPHCAL calibration? Is it necessary phase calibration ?