Thanks for that, Trem. Precisely confirms my thoughts on what must be going on with voltage switching. There has been contradictory reports indicating very long recovery times, which made no sense to me.
Kevin Nolan ----- Original Message ----- From: "Trem" <[email protected]> To: <[email protected]> Sent: Monday, January 14, 2002 4:49 AM Subject: Re: CS>changing polarity > Hi Steve, > > We only use polarity switching in our SG7 Pro. The reason was because we > wanted to have a strong current gradient in the water to get the process > started quickly and that required the electrodes to be close together since > we only use about 75-80 volts at the start. We run 30 ma. current. I > haven't noticed any difference in production time because we never tried to > not switch polarity. If we didn't switch polarity only 2 of the 4 > electrodes would deteriorate and we want them to all go away evenly. We > get an output of about 2 gallons an hour at 5 PPM. If there was a > difference in output from switching I don't think it would amount to > much. The current recovers in a second or so after switching, as seen on a > DVDM. That may not hold true if there is a lot of buildup on the electrode > surface which probably would occur if the switching time was very long. I > think the oxide acts as an insulator so short switch times are essential to > good recovery each cycle. Getting it off before buildup is good. Also, > moving the water with a pump speeds up the recovery time between cycles. > > Hope this helps. > > Trem > > > > > At 08:01 PM 1/12/2002 -0700, you wrote: > >Trem and all, > > > >When one polarity switches every 30 to 45 seconds or so, using a constant > >current, by about what factor does the the rate of production decrease? I > >believe during the transition period CS production stops or at least slows > >down until a new steady state condition is reached. Do you see 10% or so > >reduction in rate of production? Or, does it take longer for your generator > >to switch off when the voltage across the electrodes reaches the selected > >value? > > > >Thanks, > >--Steve > >----- Original Message ----- > >From: "Trem" <[email protected]> > >To: <[email protected]> > >Sent: Saturday, January 12, 2002 10:10 AM > >Subject: Re: CS>changing polarity > > > > > > > Hi Willy, > > > > > > We reverse polarity every 40 seconds on one of our models so the > >electrodes > > > do not need to be cleaned. Because they are very close to each other that > > > would make them difficult to clean. By reversing polarity, they are > >pretty > > > much self cleaning. There is a discoloration on both electrodes and they > > > all (4) wear out at the same rate. Electron microscope photos show the CS > > > to be of fine quality. Polarity switching is also done by one other > > > manufacturer I know of. > > > > > > Every time the polarity is switched, teh current drops and after the > > > elemental silver is forced off the electrode, it rises to normal levels > > > within a very brief period of time. I believe if you let it go for 5 > > > minutes, there might be quite a long sag in current until all teh loose > > > siolver was removed. Our experience is that 30 to 45 seconds is about > > > right for our situation. We use an array of 1.5" wide by 5" wetted depth > > > electrodes spaced about 3/8" apart. > > > > > > Trem > > > > > > > > > > > > > > > >-- > >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]> >
