[email protected] wrote: Can you tell me > where to get the Digital Test Meter that you spoke of? Is it > expensive?
ANY digital multimeter that will read AMPS of current on 2mA and 20mA (milli - Amps)scales will do the job for you - this is really not a matter of one being better than another, since this is a very basic meter function of measuring current. Radio Shack sells digital multimeters in many price ranges. While I sell one for $39.95, you don't necessarily need this particular one. > Someone on the list is recommending a PPM device for $30 ... is that > what you use? Do you know just what the PPM of your silver water is? I haven't bought one yet, but have also considered it. I followed the discussion on the list, and it seems that the calibration was said to be done with a NaCl (salt) solution, rather than calibrated in an actual Collloidal Silver solution of an exact PPM. I expect that this method, if used properly, and compared with lab results on a known CS concentration, this calibration approach can yield consistant results. Measuring PPM is very dependent on temperature, test probe spacing and immersion depth, and somewhat on battery freshness. But it's something you do after you've stopped your CS generating process.... The approach I described using the meter in the circuit while the process is running lets you always end the CS generator process at a specific PPM level, since (with all other factors being the same) the current that will flow through the generator is always a direct function of the quantity of ions (colloidal silver particles) in the solution at any moment (As long as you start with pure distilled water!). With twice the VOLTAGE applied through a solution of a certain CONDUCTIVITY, twice the CURRENT will flow through - this part of the calculations are pretty much linear, so you can translate from my data for 15 volts to get usable numbers for anything from 9 volts on up, for either a pulsed DC or a constant voltage, since the current measuring is averaged over time by the meter. I'll try to have lab results back by the end of the week from the samples I've run, posted to the "Making CS" page on my website: http://web.idirect.com/~showcase/althealth/makecs.htm Questions and comments are always welcome! Bruce K. Stenulson Applied Technology Fairplay, Colorado -- 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]>
