A CO₂ Analyzer Is Calibrated Using a 5% CO₂ Mixture

question 48

Multiple Choice

A CO₂ analyzer is calibrated using a 5% CO₂ mixture with the sampling pump set at 500 ml/min;a water vapor absorber is then added to the sample line.Which of the following should be done before using this system?

• A) Increase the sampling pump flow to at least 750 ml/min.
• B) Decrease the sampling pump flow to less than 50 ml/min.
• C) Recalibrate the analyzer.
• D) Calculate the "corrected" CO₂ reading.

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