Calibration pH probe connected to the expansion box

[mistral]

I have a tropical marine tank.

I calibrated pH probe connected to an expansion box. This probe is defined as pH probe 2. I set the two calibration value (7 and 9) and I calibrated the probe using the appropriate buffer solutions. I saved the values​​. But the probe works badly, giving a pH value of about 5.8.

I checked the sensor overview window and I saw that the calibration values ​​are not saved. In fact, there are the default calibration values ​​of 4 and 7 and not the new values 7 and 9.

Why?

Could somebody help me?

[GHL Support]

Have you perhaps forgotten to save at the end of the calibration process?
Have you ended ProfiLux-Control and opened it again after calibrating? Because the
figures 4 and 7 are not updated immediately (you have to restart the program).
What does the probe say after calibration when you dip it into one of the calibration
fluids? Does it show 7 resp. 9? If not, then the calibration was not successful.

[mistral]

I managed to calibrate the probe correctly. Thank you