What is the temperature range that an online pH meter can measure? What is the lifespan of a pH electrode? How to maintain

The typical temperature range I’m aware of is from -10 to 140, and the electrodes are imported from the United States; they last about a year. Does it need to be cleaned regularly for maintenance?

Check the manufacturer’s sample for details. It is certain that the higher the temperature, the greater the pressure, the more severe the erosion, and the dirtier the medium, the shorter the lifespan of the electrode. All high-end products are imported. Normally, we use one from Harbin; its stability and lifespan seem even better than those of imported ones. The price is also really cheap.

The last edit to this post was made by sunshineda_VGMP on 2018-4-27 at 08:57. The operating temperature for a pH meter is generally 0–60°C. Temperature is related to the \"alkaline error\" of pH electrodes; the higher the temperature, the greater the alkaline error ； Additionally, the calomel electrode can only be used within the range of (0–70)°C; above 70°C, calomel tends to decompose, causing the electrode to become unstable and leading to difficulties and errors in measurements. Generally, the maximum temperature set for the temperature compensator in pH meters is 60°C. Online pH electrode lifespan: The higher the temperature, the greater the pressure, the more severe the scouring, and the dirtier the medium, the shorter the electrode’s lifespan. Maintenance: The electrodes should be calibrated regularly using calibration solutions and cleaned; when not in use, they should be immersed in a saturated potassium chloride solution.