Thanks Mike, I presently use a TDS1 from Hannah, but have heard there is also a TDS2. Is it better for measuring CS PPM? It costs more but might be worth the investment if it does a better job.
Steve > ** Original Subject: RE: CS>re: Re: CS>Measuring particle concentration of > colloids > ** Original Sender: "M. G. Devour" <[email protected]> > ** Original Date: Fri, 1 Jun 2001 09:41:56 -0400 (EDT) > ** Original Message follows... > > Ken wrote: > > > TDS meters will give you some "idea" but won't actually "measure" > > anything useful. > > Actually, the TDS-1 or PWT from Hannah Instruments, as the most cited > examples of the breed, will give you about as much information about > your brew as monitoring the cell current, in a constant voltage setup > or current limited cell voltage, otherwise. > > The main advantages to such meters is their hand-held convenience and > the fact that they are temperature compensated, which your cell > readings will not be. > > You'll only be able to use them for "relative" measurments for > consistency from batch to batch, or to know if something is changing > over time in a sample. Only if your setup *closely* resembles that of > someone who has characterized their system well, you'll be able to get > a crude approximation of what you have. > > Be well, > > Mike D. > > > [Mike Devour, Citizen, Patriot, Libertarian] > [[email protected] ] > [Speaking only for myself... ] > > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > To join or quit silver-list or silver-digest send an e-mail message to: > [email protected] -or- [email protected] > with the word subscribe or unsubscribe in the SUBJECT line. > > To post, address your message to: [email protected] > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > List maintainer: Mike Devour <[email protected]> > >** --------- End Original Message ----------- ** >
