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New low cost Energy Meter

Discussion in 'Hobby Electronics' started by David L. Jones, Jun 28, 2008.

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  1. Spotted in the latest Renew magazine.
    After the ATA shop recalled the low cost energy meter (same as the Jaycar
    one) due to it being innacurate and basically a piece of crap, they now
    have a new one available.
    $69.95
    http://shop.ata.org.au/cart.php?target=product&product_id=16518&category_id=255
    and
    http://www.planetearthsolar.com.au/show_cat.php?cat_id=pum

    It is an Australian version of the very popular US Killawatt EZ model.

    2% rated accuracy.

    Still nowhere near as cheap as the US model though (US$20).

    Dave.
     
  2. Don McKenzie

    Don McKenzie Guest

    planetearthsolar is 8 bucks cheaper, free postage :)

    now, do I need one?

    Don...




    --
    Don McKenzie

    Site Map: http://www.dontronics.com/sitemap
    E-Mail Contact Page: http://www.dontronics.com/email

    Xbee Wireless Modules, and low cost Interface Boards.
    http://www.dontronics-shop.com/xbee-boards.html
     
  3. Of course you do. Go on, you know you want one...

    Correction:
    Should be 0.2% accuracy, not 2% as stated in the renew article and the ATA
    website.
    The Renew article makes out that it is the same as this US one:
    http://www.p3international.com/products/p4460.html
    Probably a newer model though.

    Dave.
     
  4. Don McKenzie

    Don McKenzie Guest

    killer manual :)

    you talked me into it, before I saw this message Dave.

    Was thinking about getting the US model, as it is so much cheaper, but
    do I really need US to AU adapters hanging all over the place?

    Answer = NO

    Then I see:
    Operating Voltage: 115 VAC
    Max Voltage: 125 VAC

    Hmmm... There may be other complications.

    Well, surely they have 100 cents = $1, same as us
    YES?

    With the current exchange rate at .9612, perhaps I have to re-calibrate
    it. ;-)

    WOW! .9612 this morning.

    If they charge $49.95 for postage, I could really end up behind.

    Don...




    --
    Don McKenzie

    Site Map: http://www.dontronics.com/sitemap
    E-Mail Contact Page: http://www.dontronics.com/email

    Xbee Wireless Modules, and low cost Interface Boards.
    http://www.dontronics-shop.com/xbee-boards.html
     
  5. Ross Herbert

    Ross Herbert Guest

    :David L. Jones wrote:
    :
    :>> now, do I need one?
    :>
    :> Of course you do. Go on, you know you want one...
    :>
    :> Correction:
    :> Should be 0.2% accuracy, not 2% as stated in the renew article and the ATA
    :> website.
    :> The Renew article makes out that it is the same as this US one:
    :> http://www.p3international.com/products/p4460.html
    :> Probably a newer model though.
    :>
    :> Dave.
    :
    :killer manual :)
    :
    :you talked me into it, before I saw this message Dave.
    :
    :Was thinking about getting the US model, as it is so much cheaper, but
    :do I really need US to AU adapters hanging all over the place?
    :
    :Answer = NO
    :
    :Then I see:
    :Operating Voltage: 115 VAC
    :Max Voltage: 125 VAC
    :
    :Hmmm... There may be other complications.
    :
    :Well, surely they have 100 cents = $1, same as us
    :YES?
    :
    :With the current exchange rate at .9612, perhaps I have to re-calibrate
    :it. ;-)
    :
    :WOW! .9612 this morning.
    :
    :If they charge $49.95 for postage, I could really end up behind.
    :
    :Don...


    I decided that even at $69.95 + $8 postage it was still worth it. If you join
    ATA you get 15% discount on the item cost.

    Some years back I imported a batch of Dual-Pro marine battery chargers from the
    US and when all of the costs involved with freight, customs clearance and other
    charges + import duty/sales tax etc were included it added about 32% to the
    purchase price. When ATA adds on all the extras plus a profit margin $69.95
    isn't too bad. If a US seller uses one of those high priced couriers such as TNT
    or DHL you will be paying at least $40 to ship it out.

    Thanks to David for letting us know about it.

    Ross
     
  6. You don't pay import duty or other taxes on low cost stuff like this,
    the limit is over $1000 now from memory. Hence the huge boom in people
    buying everything direct via eBay and other online shops these days.
    It would be cheaper to have the US one shipped here, but it's (claimed
    to be) not rated for 240V operation.
    Yeah, it's an ok price, certainly a lot cheaper than the SC power
    meter kit from Altronics.

    Dave.
     
  7. David Segall

    David Segall Guest

    The keyword in the above is "batch". Individuals importing a single
    inexpensive item will have it arrive on their doorstep without any
    extra charges except delivery. Customs could, but don't, charge GST.
    Courier delivery like DHL can be expensive but the USPS has, at last,
    caught up with Australia Post for prompt service and their charges are
    comparable.
     
  8. Dand

    Dand Guest

    Please be sure to let us know how accurate it is at low power (like 1 watt)
     
  9. Ross Herbert

    Ross Herbert Guest

    :
    :>>Some years back I imported a batch of Dual-Pro marine battery chargers from
    the
    :>US and when all of the costs involved with freight, customs clearance and
    other
    :>charges + import duty/sales tax etc were included it added about 32% to the
    :>purchase price. When ATA adds on all the extras plus a profit margin $69.95
    :>isn't too bad. If a US seller uses one of those high priced couriers such as
    :>TNT or DHL you will be paying at least $40 to ship it out.


    :The keyword in the above is "batch". Individuals importing a single
    :inexpensive item will have it arrive on their doorstep without any
    :extra charges except delivery. Customs could, but don't, charge GST.
    :Courier delivery like DHL can be expensive but the USPS has, at last,
    :caught up with Australia Post for prompt service and their charges are
    :comparable.

    Yes, you are correct. Individuals importing 1 or 2 off direct won't be hit with
    these charges whereas ATA on the other hand, probably would because they are
    importing a commercial quantity, and they would have to pass on these costs to
    their customers.
     
  10. Ross Herbert

    Ross Herbert Guest

    :Spotted in the latest Renew magazine.
    :After the ATA shop recalled the low cost energy meter (same as the Jaycar
    :eek:ne) due to it being innacurate and basically a piece of crap, they now
    :have a new one available.
    :$69.95
    :http://shop.ata.org.au/cart.php?target=product&product_id=16518&category_id=255
    :and
    :http://www.planetearthsolar.com.au/show_cat.php?cat_id=pum
    :
    :It is an Australian version of the very popular US Killawatt EZ model.
    :
    :2% rated accuracy.
    :
    :Still nowhere near as cheap as the US model though (US$20).
    :
    :Dave.
    :


    A quick search appears to show that the old Kill A Watt P4400 can be purchased
    for around US$17 but the cheapest I can find the EZ P4460 is around US$39, and
    this seller only posts to US destinations.

    Another seller
    http://item.express.ebay.com/ws/eBa...QssPageNameZKP_Merch_CLOSED_ITEM_SIMILAR_LINK
    sells the EZ P4460 for US$41.95 plus US$11.95 postage which makes it around
    US$53 to buy direct from the US. But then you have the problem of the 115Vac
    input voltage to overcome and the need to use plug adapters. I think the higher
    price (AU$69.95) from ATA etc for the Australia specific version is well worth
    it.
     
  11. Ross Herbert

    Ross Herbert Guest

    On Tue, 01 Jul 2008 07:54:44 -0400, "Michael A. Terrell"

    :
    :Ross Herbert wrote:
    :>
    :> A quick search appears to show that the old Kill A Watt P4400 can be
    purchased
    :> for around US$17 but the cheapest I can find the EZ P4460 is around US$39,
    and
    :> this seller only posts to US destinations.
    :>
    :> Another seller
    :>
    http://item.express.ebay.com/ws/eBa...QssPageNameZKP_Merch_CLOSED_ITEM_SIMILAR_LINK
    :> sells the EZ P4460 for US$41.95 plus US$11.95 postage which makes it around
    :> US$53 to buy direct from the US. But then you have the problem of the 115Vac
    :> input voltage to overcome and the need to use plug adapters. I think the
    higher
    :> price (AU$69.95) from ATA etc for the Australia specific version is well
    worth
    :> it.
    :
    :
    :$29.99 at Harbor Freight:
    :
    :http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=93519


    That price is for the P4400 (which I found goes for as low as $17) and not the
    P4460 EZ.
     
  12. Phil Allison

    Phil Allison Guest

    "Dand"



    ** One again - all you need to do is load it with a 56 kohm resistor to
    get 1 watt.

    Then a capacitor of say 1 uF ( 250 VAC) to see that it is measuring true
    power and not apparent power.



    ....... Phil
     
  13. Ross Herbert

    Ross Herbert Guest

    :Spotted in the latest Renew magazine.
    :After the ATA shop recalled the low cost energy meter (same as the Jaycar
    :eek:ne) due to it being innacurate and basically a piece of crap, they now
    :have a new one available.
    :$69.95
    :http://shop.ata.org.au/cart.php?target=product&product_id=16518&category_id=255
    :and
    :http://www.planetearthsolar.com.au/show_cat.php?cat_id=pum
    :
    :It is an Australian version of the very popular US Killawatt EZ model.
    :
    :2% rated accuracy.
    :
    :Still nowhere near as cheap as the US model though (US$20).
    :
    :Dave.
    :

    I discovered there is an even cheaper unit here. No specification data though.
    http://www.adapt2eco.com.au/index.php?main_page=product_info&products_id=267
     
  14. Unfortunately exactly the same as the crap Jaycar unit that has been
    discussed.
    http://www.jaycar.com.au/productView.asp?ID=MS6115

    Dave.
     
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