What can be done if the pH reading on a Platinum Series electrode is unstable and erratic?
Platinum Series electrode pH reading is unstable and erratic
Most likely the electrolyte gel in the Platinum Series Electrode is not making contact with the sample or buffer, or there is an air bubble in the gel. To correct this, click the dispenser on the electrode until the electrolyte gel comes out and the pH reading is stable. See the electrode instruction manual for more information on the electrolyte gel cartridge.