For those who weren`t around back when we all started using TDS-1 testers. :-) Tai-Pan wrote: > > Greetings all you CS makers and users. > Was reading the postings of Ringdance on Wed 1 Apr, and Fred on 2 Apr > about their TDS-1 testers. > Someone has passed on the idea that the TDS-1 is a conductivity > measuring tool. Its *NOT* a conductivity tester. I also thought it was, > until I ran some tests on it. Then I called Hanna Inst. Tech service to > get the straight scoop on it. > It measures IONIC CURRENT,only. If the fluid has a lot of particles in > it and some are charged (ionic) and some are not, it will only read the > charged ions. > The TDS-1 probes are BOTH stainless steel and there fore will NOT > produce an electric potential . The TDS-1 does NOT apply any electric > potential to the probes. I have read the probes with a volt meter on the > 4 micro volt scale and its reading zero. > When the TDS-1 is placed into an ionic solution the emf (electromotive > force) of the ions will cause a current to flow between the two probes > which is measured and displayed as PPM of IONS. > Reagents and other "calibration fluids" are really used to precipitate > unwanted things out of the fluid. > When I first recieved my TDS-1 I tested it in pure distilled water as > reading 001ppm and then put the test fluid into storage for future > testing of its (TDS-1) calibration. > Since I go to great lengths to make sure nothing is in my CS , only > pure H2O and single atoms of ionic silver, the TDS-1 will measure only > the SINGLE ATOMS OF IONIC SILVER in my CS. I am going to make a posting > on how I do this. > This TDS-1 is probably more accuate than the lab tests you get with > all their reagents etc. The TDS-1 *IS* a lab test instunment. An > airplane pilot I know said "if you can`t trust your instruments your in > trouble". > Remember it reads IONIC CURRENT not conductivity. > Now lets have some fun with it. > Run some cold water from your kitchen faucet into a ceramic coffee > mug. Read it--mine reads 233ppm. About normal for city water. Now dump > it out and put in some warm water. read it--mine jumps up to 350ppm and > the reading slowly drops as the fluid cools and the mug warms up .It > will stabilize about 320ppm as the temperature equalizes between the > water and the mug and everything is warm. > Now dump it out and put in some real hot water from the faucet. > read it--mine reads 460ppm and slowly drops as the temperature of the > water and mug equalize, down about 327ppm , let it stand and cool awhile > and it will keep dropping to the cold water reading or close to it, > about 270ppm or so . Your reading will be not the same as mine since > your city water is not the same as mine. > Took some water from my "Brita" water filter. Reads 341ppm after going > thru the ACTIVATED charcoal filter. It removes lead and copper by > chemical action. They are poison to us. Also created a lot of ions by > catalytic action. Not silver ions however. > Went to a friends well out in the country and got a reading 006ppm > from his water (It tasted good). > Ions are CREATED by heating,by flow in METAL pipes ,by contaninates, > by pollution of the water, by water heaters, BY electric current, by > flames of burning, by radiation,by catalytic action etc.. > All we want to do is measure the ionic current CAUSED by passing > electricity thru pure water with silver electrodes and read it as PPM of > IONS (silver ions) . That is what the TDS-1 does. > The other day I opened up a new jug of distilled water and found it > read 003ppm ,wondering if it was the water or the tester, got out my jar > of calibration water (remember me putting that away at the beginning of > this posting) I stuck the tester in it and it read 001ppm. Great ,now I > know the tester is OK and the distilled water is not quite pure. I`ll > just subtract the BASELINE 3 from my CS reading after makeing my CS, its > real simple. Just be SURE you don`t get any thing in your CS except pure > H2O and SINGLE ATOMS of IONIC SILVER. More on that soon.When my TDS-1 > reads 20ppm in my CS I know its 20ppm of SINGLE SILVER ATOMS in the > IONIC state. > Thanks for taking the time to read this and keep on doing whats good > for your selfs. Bless you all. > > Bob Lee > > dont cuss the farmer with your mouth full > > > > -- > oozing on the muggy shore of the gulf coast > [email protected] > > -- > > >
-- oozing on the muggy shore of the gulf coast [email protected] -- 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] List maintainer: Mike Devour <[email protected]>
