Bruce K. Stenulson wrote:

> Terry,
>
> To relate to anyone else's readings, you would have to match their
> electrode geometry...  wetted length, surface area, and distance
> apart;
> all of these will affect the mA reading you will get.
>
> Bruce
>
> Terry Dickinson wrote:
> >
> > Well, I've been lurking a long time and read many messages on this
> > subject - TDS1s - silver testers - and others but I really don't
> feel
> > any
> > the wiser.
> >
> > It seems to me that all such devices must rely upon conductivity in
> > some way or other and in order to reach a standard in my own
> > production all I've done is to run the process until I get two and a
>
> > half
> > milliamps flowing through the CS from a 27V supply.  This seems to
> > produce a satisfactory product.  The water I use is of
> pharmaceutical
> > quality - I haven't had much luck in distillation efforts.
> >
> > I thought a TDS1 might give me an answer as to what I'm making but
> > Hanna in the UK disclaim any knowledge of it.  So if there is anyone
>
> > out there who knows what they're producing in the way of ppm and
> > who is also using 27v and also has a milliampmeter handy I would
> > certainly appreciate their comments.
> >
> > Live life!
> >
> > Regards     Terry
> >

OK and thank you Bruce.

Stupid of me but obviously not too late to learn!

Regards    Terry


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  • PPMs Terry Dickinson
    • Re: PPMs Bruce K. Stenulson
      • Re: PPMs Terry Dickinson