A 2 week old batch metering at 12 uS was sent to AA Spec testing.
Came out at 11.9 PPM total @ 15% unmeterable particulate. [Strong TE]
Weak TE, fudge down a couple of PPM.
A Com-100 reading conductivity in a batch reads 18.3 uS and 8.4 PPM when
switched to PPM in the NaCl scale
1.5 numerical difference when doubled. Conversion error by doubling uS is
half that?
Is that a 1.75 multiplier? [Not great at arithmetic ]
Ode
At 05:09 PM 8/15/2008 -0500, you wrote:
Faith,
It is very easy. See:
http://www.ozelink.com/tds_meters/how_to_use.htm
However TDS meters don't measure colloidal silver directly and so you
need to multiply the reading on the TDS meter by a constant to get an
estimate of the colloidal silver ppm. I have seen it recommended that
you multiply the TDS reading by 1.2 (Colloidal Silver Master
manufacturer) up to multiply by 2.0 (colloidalsilver.com) to get the
colloidal silver ppm. I have been using 2.0 but may change closer to the
1.2 to be conservative. I am not sure how importance absolute accuracy
is if you are primarily looking for consistency and to verify setup
operation.
Question for the group: What multiplier do you use and how accurate do
you think your measurements are???
Just make sure the TDS meter probe is not contaminated when measuring,
make sure there are no bubbles on the probe tips and do not try to
measure moving water (keep TDS meter still in water).
- Steve
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>..
Hi Steve. How does one use a TDS meter? Thanks. Faith G.
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