OK, I'm thoroughly confused now...I have a TDS and it reads zero when I put it in the DW from Walmart. After making my CS with my silverpuppy it will read 14ppm. Is that the correct ppm? or do I need to subtract/multiply/add any numbers to get an approximate on my ppm readings? or should I just go and get the PWT?
Thanks for all the knowledge. Deb ----- Original Message ----- From: "M. G. Devour" <[email protected]> To: <[email protected]> Sent: Wednesday, April 07, 2004 7:20 AM Subject: Re: CS>PWT and TDS readings > I have to agree with Al, here. > > The zero intercept of the TDS-1 seems to be stable and correct. It > reads zero in good distilled water. It goes above zero as soon as > anything is put in the water; ie., there's no dead zone. The scale is > linear. > > If there was an error of 20 to 40 ppm at the low end I haven't seen > evidence of it. > > This isn't to say the PWT isn't the better instrument. It is. The TDS-1 > is better than folks are trying to make it out to be, however. > > Be well, > > Mike D. > > > > Most of the Hanna TDS instruments have ranges of 0-999 PPM or > > > 0-1999 with 2% accuracy of full scale. That means the unit can be > > > off by as much as 20 or 40 PPM at the low OR high end of the range or > > > at any reading. > > > > How can it be off 20 or 40 PPM at a reading of 1PPM ? Or even 10 PPM? > > I think the accuracy statement means 2% @ full scale, not OF full > > scale. > > > > My PWT accuracy statement says +/- 2% Full Scale. > > > > Al D. > > [Mike Devour, Citizen, Patriot, Libertarian] > [[email protected] ] > [Speaking only for myself... ] > > > -- > The Silver List is a moderated forum for discussing Colloidal Silver. > > Instructions for unsubscribing are posted at: http://silverlist.org > > To post, address your message to: [email protected] > Silver List archive: http://escribe.com/health/thesilverlist/index.html > > Address Off-Topic messages to: [email protected] > OT Archive: http://escribe.com/health/silverofftopiclist/index.html > > List maintainer: Mike Devour <[email protected]> > >
