CONDUCTIVITY MEASUREMENT
Conductivity is widely use in industrial applications
that involve the detection of contaminants in water and concentration measurements.
Envirosensors Pty Ltd has a full range of conductivity probes, meters and
transmitters from WTW, Sensorex, and Jenco EDT Ion Direct.
LABORATORY & GENERAL PURPOSE
Conductivity cells
Hand-held meters
Benchtop meters
INDUSTRIAL, PROCESS & COMMERCIAL
Conductivity probes
Conductivity transmitters
Conductivity controllers
.
CONDUCTIVITY PRIMER
Conductivity is the reciprocal (inverse) of electrical resistivity and has the SI units of siemens per meter (S·m-1) i.e. if the electrical conductance between opposite faces of a 1-meter cube of material is 1 siemens then the material's electrical conductivity is 1 siemens per meter. Electrical conductivity is commonly represented by the Greek letter σ, but κ or γ are also occasionally used.
Conductivity measures how well a solution conducts
electricity. The units of conductivity are Siemens/cm
(S/cm), which are identical to the older unit of
mhos/cm.
Conductivity measurements cover a wide range of
solution conductivity from pure water at less than
1x10-7 S/cm to values in excess of 1 S/cm for concentrated
solutions
For convenience, conductivity is usually expressed in
the units of microSiemens/cm (µS/cm, one millionth of
a Siemen/cm) or milliSiemens/cm (mS/cm, one thousandth
of a Siemen/cm).
This information is adapted from articles at wikipedia and is licensed under the GNU Free Licence Agreement. .
