RE: _Measuring_ power.

["Ian Bird" <I.Bird@xxxxxxx>]

I have an 6 gang extension lead from M*****s with an LED power readout on
it. It's only 0 t  13 amps in 1 amp intervals or similar and not very
accurate I am sure. I use it to make sure my computer setup doesn't
overload. In a test I managed t  draw about 9 amps at one time. Normal draw
was more like 4 t  5 amps max. I got it on one of the offers for about 20
quid.

Ian

> -----Original Message-----
> From: Nigel Giddings [mailto:nigel.giddings@xxxxxxx]
> Sent: 28 July 2001 10:52
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] _Measuring_ power.
>
>
> Hi,
>
> This is something that would be useful with the HA to see if
> something is in
> use (Fan Heater with Internal Thermostat), started, finished
> (Dishwasher or
> more useful Tumble Dryer with Humidity setting), whether
> something has gone
> faulty (Bulb, Immersion Heater) or just keep an idea on demand in
> the house
> at any time.
>
> I was wondering if this type of device could use the Dallas 1
> wire solution
> ? It would mean a separate wire(s) t  the measuring point but I would
find
> several uses for them.
>
> Just an idea.
>
> Nigel
>
> -----Original Message-----
> From: Keith Doxey [mailto:ukha@xxxxxxx]
> Sent: 27 July 2001 23:05
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] _Measuring_ power.
>
> It has t  clamp round ONE conductor NOT the cable.
>
> By clamping it around either Live or Neutral it will pick up the
magnetic
> field generated by the flow of current and give a reading. If you
clamp
> round BOTH Live and Neutral by clamping round the sheathed cable you
will
> pick up two magnetic fields. These fields will be of equal strength
but
> opposite polarity and will cancel out giving you a zero reading.
>
> You can make a plug in adaptor for your ammeter by getting a 13A plug
and
> 13A socket and wiring
> E t  E, N t  N, L t  Ammeter t  L.
>
> Keith
>
> > -----Original Message-----
> > From: Alan Cockerton [mailto:alancc@xxxxxxx]
> > Sent: 27 July 2001 22:46
> > To: ukha_d@xxxxxxx
> > Subject: Re: [ukha_d] _Measuring_ power.
> >
> >
> > Dont know about plug in but you can get one that clamps around
> the cable.
> >
> > Alancc
> >
> > ----- Original Message -----
> > From: Stuart Grimshaw <stuart@xxxxxxx>
> > To: <ukha_d@xxxxxxx>
> > Sent: Friday, July 27, 2001 10:33 PM
> > Subject: [ukha_d] _Measuring_ power.
> >
> >
> > > Is there any way to actually measure the amout of power (in
> > watts) that a
> > > device is using? I'm guessing an ameter may be involved
> somewhere along
> > with
> > > p=va?
> > >
> > > hmmm....if that's the answer, why am I asking?
> > >
> > > OK forget that, is it possible to buy ammeter's that let you
> > plug devices
> > > (with 3 pin plugs) int  them?
> > >
> > > --
> > >
> > >  Stuart Grimshaw <stuart@xxxxxxx>
> > > -
> > >  t:07976 625221
> > >  f:0870 7060260
> > >
> > >
> > >
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