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
At 03:05 PM 1/12/2002 +0100, you wrote:
Dear readers,
Normally there is a black built-up on the negative electrode and the
positive electrode remains clean. What would the effect be if switching the
polarity on the silver electrodes let us say every 1 or 2 minutes or even 5
minutes? Has anyone ever tried this?
Willy
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