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Heat the pH 4.01 and pH 7.01 solution to 25.0 Celsius.
Place the probe into the pH 4.01 solution. Leave it there for at least 5 minutes
Start calibration procedure.
After 5 minutes, rinse in RO water, pat dry
Place into pH 7.01 solution. Leave it there for at least 5 minutes.
Start calibration procedure
Complete the calibration.
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After calibration please test accuracy. Leave pH probe for 5 minutes in pH 4.01 solution and test accuracy. The difference shouldn’t be higher than 0.05. Then leave the pH probe in pH 7.01 solution for 5 minutes to check the pH probe is accurate to the measurement solution. The difference shouldn’t be higher than 0.05. |
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