Troubleshooting pH Meters

A pH meter is an electronic tool used to measure the alkalinity or acidity of a liquid. A typical pH meter consists of an electronic device attached to a glass probe, or electrode. PH meters are used in a variety of applications, including wine testing and pool water balancing. The first pH meter was sold in 1936 in both Denmark and the United States. Regular inspection and care of a pH meter can help optimize its continued performance.

Things You'll Need

• Replacement batteries (if necessary)
• Replacement coil (if necessary)
• Detergent and ethanol solution

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Instructions

• 1

  Check the batteries if the pH meter fails to turn on. Ensure that the batteries are installed in the correct position. If the batteries are installed correctly and the meter still fails to operate, replace the batteries.

• 2

  Replace the electrode if the meter's readings drift. A worn or damaged electrode will prevent the meter from accurately monitoring alkaline or acidic levels. Contact the specific meter manufacturer for replacement parts.

• 3

  Clean the electrode if the meter begins to take longer than usual to stabilize. Heavy usage can clog the probe membrane with particles. Each model will have manufacturer-specific cleaning solutions. For general cleaning to remove grease and oil, rinse the electrode with a detergent and ethanol solution.