Calibrate a conductivity sensor

Improve the accuracy of a conductivity sensor, such as the Wireless Conductivity Sensor (PS-3210A), by calibrating the measurement.

Required supplies

Calibrating a conductivity sensor will require the following components:

• Two beakers
• Two standard solutions of known conductivity
• De-ionized water

Calibration

1. Connect the conductivity sensor to Chemvue.
2. From any page, select a Displayed Measurement button and select "Conductivity" from the list.

3. Select the Displayed Measurement button again and select Calibrate.

   

4. Select Two Standards (2 point) from the dropdown list, then select Next.

   

5. Place the probe of the conductivity sensor into a beaker containing your first standard solution, making sure the sensing element is immersed. Wait for the conductivity measurement (shown next to Sensor Value) to stabilize before proceeding.

6. Enter the known conductivity value of the first standard solution into the Standard Value box, then select Set Current Value to Standard Value.

   

7. Remove the conductivity sensor from the beaker and rinse the probe with de-ionized water.

8. Place the probe into a beaker containing your second standard solution, making sure the sensing element is immersed. Wait for the conductivity measurement (shown next to Sensor Value) to stabilize before proceeding.

9. Enter the known conductivity value of the second standard solution into the Standard Value box, then select Set Current Value to Standard Value.

   

10. Review your new calibration to make sure it is appropriate, then select Apply.