Calibrating your conductivity meter

When’s the last time you calibrated your conductivity meter? If it was more than a year ago, it’s time to calibrate it.

Our conductivity meters come pre-calibrated and ready to use! Your meter will need to be re-calibrated at least once a year. Luckily, calibrating isn’t hard! Just follow these six easy steps.

For best results, try to calibrate your meter at the same time every year so you don’t forget!

Our #1 tip

For best results, we recommend watching the “how to calibrate” video below! It’ll take you through the entire calibration process from start to finish. Still confused after you watch it? Contact us!

Step 1: Soak your conductivity meter in distilled water for 30 minutes. Then, shake off the excess water.

Step 2: Cut open your calibration pouch about a half inch from the top.

Step 3: Press the power button once. Ensure you are in conductivity mode (uS)!

Step 4: Place your conductivity meter into the solution in the pouch. Allow it to stabilize and check the reading.

Step 5: If your value does not match the indicated solution value press the down button for two seconds. *Note– if your sample is not 25°C refer to the temperature correction chart below.

Step 6: Once you see “Cal” on the top right of your screen use the up or down arrows to adjust accordingly.
Once “Cal” stops flashing press the power button once to set the new reading.

Temperature correction chart

Adjust your calibration value based on this chart. E.g. if your temperature is 21°C, enter 411. Attempt to use non-decimal values for best results.

How to calibrate

Ask an expert: Conrad Gregoire, Chemist, walks us through how to test and use a reference to make sure our readings are accurate!