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.

Question

Quizplus · Accepted Answer

When a water vapor absorber is added to the sample line, it can affect the accuracy of the CO₂ analyzer. Therefore, the analyzer should be recalibrated to ensure accurate readings. Adjusting the sampling pump flow rate is not necessary in this scenario. Calculating a "corrected" reading is not necessary if the analyzer is properly calibrated.

A CO2 Analyzer Is Calibrated Using a 5% CO2 Mixture

A CO₂ Analyzer Is Calibrated Using a 5% CO₂ Mixture