pic microcontroller discussion list <> wrote:
>> -----Original Message-----
>> From: p.cousens [mailto:p.cousens@BISCIT.BIZ]
>> Have you tried a different voltage ?
>> I have!
>>
>
> No, I suspect my local utility would be reluctant to try that
> experiement on my behalf!  However, the design of the disc type meters
> includes a voltage and a current coil.

I guess from the above exchange that the 'different voltage' which Peter
tried may be outside the specified range for the meter, in which case all
bets on accuracy are off :-)

I presume a 220-240V UK meter would not be so accurate on a 120V supply.  I
know the UK disc ones do measure power, not just current, but I would not
expect them to do so from 10V to 400V with any accuracy, just within the
permitted supply variations (230V +/- 10% across Europe)

Nigel
--
Nigel Orr, Design Engineer                 nigel@axoninstruments.co.uk
Axon Instruments Ltd., Wardes Road,Inverurie,Aberdeenshire,UK,AB51 3TT
               Tel:+44 1467 622332 Fax:+44 1467 625235
                   http://www.axoninstruments.co.uk

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