I'm having a problem in CT CURRENT calibration.
While not the current value it returns me this:
Link http://img42.imageshack.us/img42/5272/emonl.jpg
My power and current is not zero.
follow the guidance of the calibration set like this: emon1.current (1, 111.1);
But the results are not too good
The configuration is 5Vccin resistor, 33R Burden.
Re: Calibration CT Sensor Current
The theory and method to calculate the calibration value is here: CT and AC power adapter installation and calibration theory
You might also want to read these:
http://openenergymonitor.org/emon/buildingblocks/measurement-implication...
http://openenergymonitor.org/emon/emontx/accuracy
http://openenergymonitor.org/emon/node/1385
http://openenergymonitor.org/emon/node/2311
Trystan did some wonderful animated pages a few months ago demonstrating how the errors vary here http://vis.openenergymonitor.org/dev/adc/noiseless, here http://vis.openenergymonitor.org/dev/adc/noisy and here http://vis.openenergymonitor.org/dev/adc/noise.mp4.