I am working on a project of a energy meter with ADE7753 and Arduino UNO.
I am using the Honeywell CSNF161 as a current transductor and a simple voltage divider to obtain the voltage signal.
Actually, i am reading good values of voltage and current from VRMS and IRMS registers, but i noticed that when no current is applied on the current transformer, there's still some offset on my IRMS register.
I need some advice to calibrate my ADE7753... What register should i calibrate first and how i do it.
I'll post my schematic below. Sorry for my english.