Tech Brief: Know Whether To Calibrate, Clean, Or Perform A PH Calibration Check
By Fred Kohlman
The article title is actually incorrect in its sequence of wording. All pH readings are supposed to be taken and accepted only when the pH sensor is clean. After all, a contaminated pH sensor may yield an incorrect reading. So one must make sure the sensor is clean before doing a calibration. Once a pH sensor is installed in the process and operating, how do you determine when it is time to take the sensor out of the process and do a cleaning, or a calibration? Does one perform both a cleaning and a calibration, or just a cleaning, or just a calibration, or does one just perform a calibration check in buffers orﾅ? The article will also examine monitoring, water quality, and troubleshooting.
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