1.4 Conductivity

The LTC provides the added feature of electrical conductivity measurement. conductivity measurement is particularly useful in monitoring saltwater intrusion, surface water infiltration and mixing, as well as the monitoring of certain pollutants and contaminant parameters. Conductivity is measured via a platinum 4-electrode sensor, which produces highly stable and consistent readings. The sensor is relatively insensitive to dirt and deposits, keeping maintenance to a minimum. Conductivity calibration is performed by using a liquid solution with a known conductivity value and the Calibration Wizard in the Levelogger Windows Software. Raw conductivity measurements can be converted to conductivity at 25 •C, which is referred to as Specific Conductance. When programming the LTC the user can select either raw conductivity measurements or specific conductance.