It would be interesting to know what was used as a benchmark.
Apparently, some benches are of different heights and some look more like
counters.
I would trust a benchmark based on electrical conductivity of a known
[solid?] substance rather than some dubious liquid solution.
Typically a PPM meter will read half that of a microsiemens meter such
as the PWT.
Ode
At 06:21 AM 6/7/2003 -0500, you wrote:
My TDS -1 reads from 0 to 999 not 0 to 2000 and it is calibrated to
measure homemade CS.
Jim
The TDS-1 from Hanna Instruments is a good bit cheaper, but it reads
from 0 to 2000 ppm. You'll be using it at the *very* bottom of its
range, which means the accuracy will not be tremendous. Sorta like
measuring grains of sand with a yardstick. Do you see what I mean?
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