Original poster: Steve Conner <steve@xxxxxxxxxxxx>
Hi Gerry,
Remember we use 230V over here. The UK version of the Kill-A-Watt is
rated at 230V and 15A which is 3750VA. It looks very similar to
pictures that Terry posted of the US version, apart from having a UK
socket and plug pins, and seems to be made by the same Chinese
company, Prodigit, so I call it a Kill-A-Watt. The Prodigit model
number on it is 2000MU.
A while back, I tested it against an old-fashioned electromechanical
wattmeter on a DRSSTC load, and found that the two meters agreed
within a few percent, even with the lousy power factor. I posted the
results here.
It has an overload bleeper that sounds if you ever peg the A/D
converter for the current, but I've never heard it sound.
If you want to measure even more power, it would be trivial to
modify the meter with a 10:1 current transformer across the internal
shunt, so it can read up to 37.5kVA :^)
Steve Conner
http://www.scopeboy.com/
Tesla list <tesla@xxxxxxxxxx> wrote:
Original poster: "Gerry Reynolds"
Hi Steve,
3.3KW with a kill-a-watt meter??? Mine has a max rating of 125Vac
and 15A for 1875VA. Are there larger ones out there???
Gerry R.