Salinity tester device

This Robolab device and program can be used in many ways. Experience using it as a wastewater treatment tester and as a solar still efficiency tester are discussed. The measaurement of conductance in water is a surrogate for salinity measurement. Students must create a calibration curve and use that curve to determine the salinity of an unknown solution. Difficulties arise when electrolysis corrodes the terminals of the probe. NOTE: I have not been able to get this to work reliably yet. This is based upon an activity originally developed at the CEEO by Lisa Moretti.

---

Robolab Investigator Conductivity Tester file HERE.