I just received my Profilux 4e starter set with temp and pH probe.
When I calibrate the pH electrode, the ADC reading is always between 475-477, regardless whether the probe is in pH4.0, 7.0, or 8.2 fluid.
I believe that is not correct, and is causing the pH reading after the calibration to be nonsense (10.50 or 3.00).
When I change the measuring data in GHL controller for this sensor from pH to ORB/Redux and back to pH, the pH reading is around 6.78, whatever liquid the probe is put into.
Is this a faulty electrode? How could one check that the tip is ok?
When I calibrate the pH electrode, the ADC reading is always between 475-477, regardless whether the probe is in pH4.0, 7.0, or 8.2 fluid.
I believe that is not correct, and is causing the pH reading after the calibration to be nonsense (10.50 or 3.00).
When I change the measuring data in GHL controller for this sensor from pH to ORB/Redux and back to pH, the pH reading is around 6.78, whatever liquid the probe is put into.
Is this a faulty electrode? How could one check that the tip is ok?