On Tue, 29 Oct 2002 13:31:25 -5, "M. G. Devour" <[email protected]> wrote:
>Specs for my Hanna TDS-1: > >Range: 0 to 999 ppm >Resolution: 1 ppm >Accuracy: +/- 10 ppm >Typical EMC Deviation: +/- 1% of Full Scale > >If I interpret this right, my TDS meter should read in steps of 1 ppm, >with no decimal point or tenths, etc., which indeed it does. > >That means the smallest increment it can *resolve* is 1 ppm. > >The display, with 3 digits, will show from 0 to 999. > >The accuracy of 10 ppm out of a full scale range of 1000 ppm is, indeed >1%. Just to clarify. The accuracy is +/- 10 ppm. That means any reading could be high or low up to 10 ppm. A reading of 20 on the TDS meter means that the real value of the solution could be anywhere from 10 ppm through 30 ppm. (A reading of 10 would be from 0 through 20.) -- Dean -- from (almost) Des Moines -- KB0ZDF -- The silver-list is a moderated forum for discussion of colloidal silver. Instructions for unsubscribing may be found at: http://silverlist.org To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
