I have Shelly EM with two clamps: 50A and 120A. I noticed when there is no load, everything is idle, 120A clamp is showing 0W as it should but 50A clamp is showing between -1,8W and -1,3W constantly changing this number. It should also shows 0W because electrical device is not turned on.
Can somebody explain and advise me how to recalibrate/offset?
