Yes and No.
Yes - after cleaning you need to verify that the analyzer is reading correctly. The easiest way is to see how it reads when placed in 2 pH buffer soltuions. This is what you do when calibrating.
No - If the readings are within the specifications (+/- 0.01pH, +/- 1 mV for ORP) in the pH buffers a full calibration is not needed.
Another way to verify that the readings are correct is to take a process sample and accurately determing the pH or ORP value using another method. This may be a Handheld or Portable analyzer, or you may take a sample to the lab. Be aware that there are many processes that will read differently after the sample sits in a sample bottle for a period of time. For those samples the lab reading will be different from the On-line analyzer.
Related Products & Solutions
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pH/ORP Buffer Calibration Solutions
Buffer solutions are needed as an indispensable tool for maintaining an accurate pH measurement. Buffer solutions are used as references points for calibration and adjustment of pH measurements to compensate for aging and deterioration.
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Liquid Analyzers
- Liquid analyzers
- Monitoring process chemistry
- Water quality
- Process optimization and control
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pH and ORP Sensors
- pH and ORP sensors
- Proper pH electrode/sensor selection critical for optimal measurement results
- Installation options include retractable, flow thru, immersion, and direct insertion