Calibrating the Vernier

First, place the pH probe in the pH 7 buffer solution, let it equilibriate and then click on Stable

Then type in the pH of 7.00.

Next, place the pH probe in the pH 4 buffer solution, let it equilibrate, click on Enter and then type in the pH of 4.00.

You can check the staus of the calibration for the probe(s) you calibrated by going back to the Calibrate Menu and clicking on Check Calibration.

Now you are ready to Save the Calibration and continue with setting up the ULI.

First, place the pH probe in the pH 7 buffer solution, let it equilibriate and then click on Stable
Then type in the pH of 7.00.
Next, place the pH probe in the pH 4 buffer solution, let it equilibrate, click on Enter and then type in the pH of 4.00.
You can check the staus of the calibration for the probe(s) you calibrated by going back to the Calibrate Menu and clicking on Check Calibration.