On 30/09/2014 8:04 PM, silver-digest-requ...@eskimo.com wrote:
Subject:
Re: CS>Something interesting for the chemist or physicist?
From:
yousouf eydatoula <ey...@yahoo.com>
I am also not
familiar with the units "KCL uS". I have a meter that reads
out microsiemens per centimeter (uS/cm).
uS is microsiemens, .. a measurement of the conductivity of the water.
KCL is potassium chloride (a calibration adjustment) but its actually
irrelevant when measuring conductivity because conductivity is just a
unit of measurement, like a volt or an inch. Its always the same
irrespective of what is being measured. ... unlike 'ppm' which is
really just the meter making an informed guess about what 'might' be in
a liquid that 'might' be water.
The earlier COM 100 meters offered ppm (parts per million) in 3
different calibrations...NaCl, KCL or 442. These calibrations also
'inadvertently' appeared on the screen when the meter was in uS
(conductivity) mode, even though they were unnecessary. Later COM100
meters do not display NaCl, KCL or 442 when the meter is in uS mode.
David
