You'll get to the parking lot of the ball park at 10, but nothing over 30 means anything at all.
The problem with using meters on solutions with limited solubility. [ESPECIALLY "PPM" meters set up to measure salt water which is very highly soluble] The ionic portion of CS has very limited solubility and some portion will convert into an un-measureable colloid depending on variable environmental conditions. The Silver is still in the water, but a meter won't detect it. The instant power is off, conductivity starts dropping. The stronger you made the solution, the more it will drop...by around 40% Each time you bump it back up, it will drop by about 1/2 as much as the previous time, but anything over 30 uS will drop back to 30 uS over time. On Tue, Nov 3, 2020 at 4:50 PM PT Ferrance <[email protected]> wrote: > Thanks Ode. I just want to know if I am making 10ppm or 50ppm EIS. Will > the conductivity meter you mentioned do that? If not I guess I will just > have to keep 'winging' it! > > Just for general information. I purchased the TDS meter on amazon. When > I contacted them about it being defective they refunded me my purchase > price and told me to trash the meter. > PT > > . > > > > > > > On Monday, November 2, 2020, 08:05:55 AM EST, Ode Coyote < > [email protected]> wrote: > > > > > > It should have been calibrated at the factory...calibration can be pretty > tricky and requires a calibration fluid > Send it back...it's defective. > For EIS, get a conductivity meter....TDS meters, in general, 'suck' > [made for salt water..silver isn't salt] > HM Digital EC-3 is a decent meter... their COM-100 is more interesting > including conductivity and scales for 3 different types of salt solutions > THEY ALL don't do what you may think or want them to do in EIS.. a very > dynamic and ever changing substance. > Not COMPLETELY useless, but not far from it. > > Ode > > On Sun, Nov 1, 2020 at 1:50 PM PT Ferrance <[email protected]> wrote: > > My first TDS meter just arrived. It talks about calibration but with no > directions as how to do this. Since it is showing 862ppm and it has not > been dipped into anything I am anticipating that this needs to be done. > > Would someone point me in the right direction? > > I've searched but have not found good directions. > > Thanks. > > PT > > > > > > > > -- > > The Silver List is a moderated forum for discussing Colloidal Silver. > > Rules and Instructions: http://www.silverlist.org > > > > Unsubscribe: > > <mailto:[email protected]?subjectunsubscribe> > > Archives: > > http://www.mail-archive.com/[email protected]/maillist.html > > > > Off-Topic discussions: <mailto:[email protected]> > > List Owner: Mike Devour <mailto:[email protected] > >> > > > > > > > >
