Conductivity Applications

• March 31st, 2020
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Conductivity Error Reduction Techniques: Bubbles

Make sure the sensor does not trap or collect air bubbles on the surface when on-line. This is a common and little appreciated problem because you cannot see through most piping. To test for surface bubbles, rap the back of an on-line sensor sharply with a screwdriver handle and look for a step change up in the conductivity reading. If it jumps suddenly, odds are good that the rap dislodged bubbles from the electrode surfaces.

• March 30th, 2020
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RoHS COMPLIANT SENSORS AVAILABLE

Sensor Development, Inc. has placed great importance on ensuring that our products comply with European Directive 2011/65/EU, comm

• July 11th, 2016
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Polarization

Ions traveling toward the electrodes will quickly form dense clouds near the electrode surfaces. They cannot physically cross the solid/liquid barrier, and the voltage is usually too low for significant electrolysis to occur (forming elemental sodium and chlorine gas for our example.) But the cloud of negative ions will present a rising counter emf at the positive electrode, and vice-versa. The result is that current flow rapi

• April 7th, 2014
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