Home energy data logging project

strider3700 · 01-17-11, 03:55 PM

The current sensors are still a bit of an issue for me. They work great for knowing when the unit is running but on the 220V stuff I haven't been able to calibrate it. In a different post back a suggestion of doing V*V* the resistance or something like that was made to work out actual C.

Part of the issue I'm having is I don't get a direct reading of V so actual wattage used is estimated. In the case of a fan at 1 speed and the hotwater heater on or off is good enough for me. For my washing machine or dryer I want to know actual consumption though so more work will be needed.

01-17-11, 03:55 PM	#22
strider3700 Master EcoRenovator Join Date: Dec 2008 Location: Vancouver Island BC Posts: 745 Thanks: 23 Thanked 37 Times in 30 Posts	The current sensors are still a bit of an issue for me. They work great for knowing when the unit is running but on the 220V stuff I haven't been able to calibrate it. In a different post back a suggestion of doing VV the resistance or something like that was made to work out actual C. Part of the issue I'm having is I don't get a direct reading of V so actual wattage used is estimated. In the case of a fan at 1 speed and the hotwater heater on or off is good enough for me. For my washing machine or dryer I want to know actual consumption though so more work will be needed.