Posted by
BiBrun on
URL: https://www.es-forum.com/Re-dirty-electricity-mete-tp1553477p1553480.html
I am surprised by how it responds to your computer. Is it a regular
computer or does it have a special power supply or filter?
I have the same meter. Of course it does not measure common mode noise,
only differential mode. I was a bit surprised how different the readings
are at different outlets in the house. It seems the signal can drop off
noticeably after 30 feet of wiring (or is it inductance when the
wires hit a junction box?).
By the way Charles, do you know which countries in Europe use Delta or Wye
distribution systems (if you use those terms)? Here, most places are now
Wye, but some older areas are still Delta. In Wye, the neutral wire is
grounded to earth at every home and every transformer and every overhead
pole. In Delta, the neutral wire is never grounded (or in uni-grounded Wye,
it is grounded only at one spot).
Bill
On Thu, Apr 15, 2010 at 2:40 PM, charles <
[hidden email]> wrote:
>
>
> I have got thr Entech dirty electricity meter.
>
> It is manufactured by Alphalab.
>
> On the ouside it says 120 V and 60 Hz, but when you open it, there are
> three small bridges which have to be changed, so that it wil work also on
> 200 V and 50 Hz.
>
> There is however no analogy to the Stetzerizer meter.
>
> With a friend it let hear real radio signals, and comparison to a
> normalradio, this radio station was at ca. 700 kHz.
> So pretty high.
>
> I have a main switch to cut all electricity for my computer.
> When the current is off, I hear a lot of noise and e meter reading of 150.
> A filter placed cuts the noise amd th value changes to 30.
> But the same happens when I let the current go to my computer.
> That is strange, because one would expect the the computer plus stuff
> should cause *dirty power*.
>
> The Stetzerizer meter does not change its value of 9 while all this
> happens.
>
> Measuring with a spectrumanalyser does not show either.
>
> So it is a bit strange what it really does.
>
> Of course, a CFL bulb causes the Entech meter to rise.
>
> So I have to play more with it.
>
> Greetings,
> Charles Claessens
> member Verband Baubiologie
> www.milieuziektes.nl
> www.milieuziektes.be
> www.hetbitje.nl
> checked by Norton
>
> [Non-text portions of this message have been removed]
>
>
>
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