Hello all,

I searched the listed posts and didn't see any related information. My question is regarding THD measurements, in the ADE7880.

I see the THD registers ITHD and VTHD are 24 bit signed S3.21 registers, which gives you a max value clamped to 4. Our customer desires higher THD measurements to say, 15. Is there any way to measure any higher THD?

For example, by dividing some number by ten, go through the calculation, then multiply THD by ten, etc...?

Thanks.

My apologies, I just had to think about this for a moment. Is this register a percentage, meaning :

THD = 2.0 is 200% or 2%?

Im going to assume it means 200%, which means I had mistakenly interpreted this register incorrectly!