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Thread: Kill-A-Watt

  1. #1

    Default Kill-A-Watt

    Hi

    Is there a 240v 50Hz AC Kill-A-Watt meter? I can only find the 115v!

    Regards
    Brian
    9 IBC Solar 235W Panels, SMA SB2100TL grid tie inverter for a 2KW grid-tie system, Backup system: 1080W PV @ 24v, Modified Air-X 12v/24v Marine, 500AmpHr Battery Bank, Infinitum Desulfator, 600VA UPS, home built 200l solar water heater, 20K BTU Solar Assisted Air Conditioner - TeecoGroup.
    Personal Website

  2. #2

    Default Re: Kill-A-Watt

    Brian,

    Here's the only thing that I found, but I didn't search very long...

    http://www.promolife.com/products/killawatt.htm#Pro

    HTH,
    Jim / crewzer
    120618: System off-line for a while...

  3. #3
    Join Date
    Jun 2003
    Location
    pittsburgh, pa
    Posts
    10,079

    Default Re: Kill-A-Watt

    from the $35 killawatt meter:
    "Displays volts, amps, watts, Hz, VA"

    now wouldn't it stand to reason it doesn't just do 60hz if it can measure the frequency? i could be wrong and an inquiry to the company could be in order.
    NIEL

  4. #4
    Join Date
    Mar 2006
    Location
    SF Bay Area (California)
    Posts
    19,651

    Default Re: Kill-A-Watt

    Brian asked for a 240 VAC unit... The Kill-A-Watt is only rated for 115 VAC nominal / 125 VAC Max... 60/50Hz may or may not affect the unit (depending on its internals and how they create their local DC power for the meter electronics).

    I don't know of any simple/cheap kill-a-watt type unit for other voltages... Personally, I am also using an old electricity utility meter wired into a meter enclosure purchased from the local hardware store. Just read the meter 1 day or 1 week apart to get kWhrs per whatever...

    -Bill
    20x BP 4175B panels (replacement) + Xantrex GT 3.3 inverter for 3kW Grid Tied system + Honda eu2000i Inverter/Generator for emergency backup.

  5. #5
    Join Date
    Feb 2003
    Location
    Green Bay, WI
    Posts
    591

    Default Re: Kill-A-Watt

    Ya I know the Kill-A-Watt can read a wide range of frequencies. Most cheap mod sine wave inverters are in the 10-15 Hz range and the meter will tell you that. And a genset I have unloaded will sit about 70 Hz, a really cheap generator

    I doubt that it would like 240vac though
    XW6048, 4 KC 120's, 4 KC 130's and 4 Evergreen 200's totaling 1800w of PV, MX-60 charge controller, Trimetric meter and eight AGM 8A8D's or 490 amps at 48v. 4 tons of geothermal and 3 tons of air source.

  6. #6
    Wayne from NS Cana Guest

    Default Re: Kill-A-Watt

    Quote Originally Posted by Brock
    Most cheap mod sine wave inverters are in the 10-15 Hz range and the meter will tell you that.
    ---------------------------------------------------------------------------------------------
    Re using the Kill-A-Watt on a modifies sine inverter:
    I have one and dare not leave it in the circut of a mod sine inverter for longer than a minute or less. It's internal power supply doesn't handle mod sine well at all. You will notice the back of the unit near the prongs that plug into the electrical outlet, will rapidly start to get rather warm on modified sine, while it stays cool on pure sine, even after being on all day. Reason would tell you that if the outside cabinet in that area gets warm, then something inside must be getting pretty darn hot. My supplier is looking for a similar unit that can handle mod sine, for those who want one.
    I discovered this, because I've had other things burn out on mod sine, so was keeping a sharp eye out for warning signs with my new Kill-A-Watt.
    Wayne

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