Do the Sense CTs know the actual voltage on a per-device basis to calculate wattage based on the actual amps * actual volts per-device?
I am doing some generator planning and finally have an extremely accurate Fluke meter. I was taking current readings and comparing to Sense. Excluding inrush (which Sense does not sample often enough), I see differences higher than 10% in some cases.
While measuring my HVAC system, the sense is showing about 1,000W less than when I measure per-circuit with my clamp meter. I compared the main Sense power meter UI before / after the HVAC system started.
It occurred to me that Sense might extrapolating or averaging based on ALL power draw seen on the CT (i.e. the actual amperage readings per pole/leg).
Can someone clarify? It would be much appreciated.