Yes. First, you would purchase a Potassium Chloride solution which is 60-90% full scale of your probe. You will then dip the probe into the solution allowing the temperature to stabilize. After it is stable, the conductivity reading on the Myron L meter should read the same as the calibration solution; if not, then you will have to perform a calibration by adjusting the CAL potentiometer in the Myron L meter to the value to that of the solution. This procedure is outlined in the CCS manual.