Has anyone installed a Flukso in the USA?
In a typical residential setup, power is provided in a split phase, with 120V on each leg. See here: http://en.wikipedia.org/wiki/Split-phase_electric_power
I believe this would just require two current clamps connected in series. Anyone agree or disagree?
Hello Lightn,
I think your right, but if you are only using 120Vac you only need to measure the current in the neutral wire.
Best regards,
Henk
You actually need 2 current clamps for split phase in the USA. Unless your house is *perfectly balanced all the time* between the two hot legs, there will always be some current going back to the transformer on neutral.
Long story short, you need 2 current clamps (one for each hot leg), a flukso, and it magically knows how to sum the two readings from the hot legs and give you useful data.
Follow-up for this - I just installed my flukso in the 'states with 2 current clamps on the 2 hot legs. (Clamp 1+ on pin 1, 1- on pin 2, clamp 2+ on pin 3, 2- on pin 4.) My dash only shows one graph (main), and I only have one sensor listed in "my account" page.
Do I need to edit some config file? Do I have something miswired?
Andrew
Hello Andrew,
I think your setup is just fine. The database tells me you have an Uncle Sam version (120V/240V split-phase) of the Fluksometer. Connecting your clamps to inputs 1/2 and 3/4 will give you a single sensor which is the sum of both legs.
Cheers,
Bart.
I've had mine set up in the USA for about 6-8 weeks now and that is exactly how mine looks. I've confirmed that the consumption reading corresponds quite well with the readings done via Kill-A-Watt also. That is to say when I turn on the TV the flukso goes up the same amount as the change in current as read on the Kill-A-Watt.