I see - you're buying AC/AC CTs. I just buy DC current or voltage output.
Needn't mess with it.
> On Feb 9, 2014, at 9:14, Marc dirix <m...@dirix.nu> wrote:
>
> I use the opamp to integrate the half sine output of the clamp.
>
>
>
>
>> On Sun, Feb 9, 2014 at 6:05 PM, Colin Reese <colin.re...@gmail.com> wrote:
>> What do you need an op amp for? I use these things all over the place and
>> plug them straight into adcs, as long as the internal resistance is
>> sufficient
>>
>>
>>
>>> On Feb 9, 2014, at 6:59, Marc dirix <m...@dirix.nu> wrote:
>>>
>>> Hi Chris,
>>>
>>> I think every reseller should be able to sell you one, because for their
>>> system you need to buy loose clamps if your connection is 3-fase.
>>> I've bought mine from bespaarbazaar.nl (obviously in the Netherlands).
>>>
>>> Amazon seemed to have sold them:
>>> http://www.amazon.co.uk/Current-Cost-Sensor-Clamp-CT/dp/B002FVNQHQ
>>>
>>> Best regards,
>>>
>>> Marc
>>>
>>>
>>>> On Sun, Feb 9, 2014 at 2:29 PM, Chris Green <c...@isbd.net> wrote:
>>>> On Sat, Feb 08, 2014 at 07:59:43PM +0100, Marc dirix wrote:
>>>> > Hi,
>>>> > I've made an 1-wire interface for the current cost clamps. The current
>>>> > cost clamp is specified 100A with 50mA accuracy. You can buy spare
>>>> > current
>>>> > cost clamps for about 15 euro. The interface is a simple
>>>> > opamp+DS2450. On
>>>> > request I'll send you the eagle schematic.
>>>>
>>>> So what exactly is a "current cost clamp" and where can I buy one?
>>>>
>>>> ... ah, I sort of see, it's something for seeing how much your
>>>> electricity is costing you.
>>>>
>>>> However I can't see anywhere that sells just the clamps, can you point
>>>> me at a supplier please.
>>>>
>>>>
>>>> --
>>>> Chris Green
>>>>
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>>>
>>>
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>>> 6361AZ Nuth
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>
>
> --
> Marc Dirix Computers
> Schmeddingstraat 24
> 6361AZ Nuth
> ------------------------------------------------------------------------------
> Managing the Performance of Cloud-Based Applications
> Take advantage of what the Cloud has to offer - Avoid Common Pitfalls.
> Read the Whitepaper.
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