What factor should be limited during the use of an oxygen analyzer?

When using an oxygen analyzer, it is crucial to limit moisture in the gas, manage temperature variations, and consider the sensor age because each of these factors can significantly affect the accuracy and reliability of the readings.

Moisture in the gas can lead to condensation within the analyzer, which can interfere with sensor function, cause damage, or lead to erroneous measurements. It's essential to ensure that the gas being tested is dry to maintain the integrity of the analysis.

Temperature variations can also impact the performance of the oxygen analyzer. Each analyzer has specific temperature ranges within which it operates optimally. Deviations from these ranges can lead to inaccurate readings, as the response of the sensor may not remain linear or detectable at extreme temperatures.

The age of the sensor is another critical aspect since sensors degrade over time. As they age, their sensitivity and accuracy can diminish, requiring calibration or replacement to ensure reliable functionality. Regular checks on sensor age can help maintain the effectiveness of the analyzer.

In summary, all of these factors—moisture, temperature, and sensor age—should be carefully controlled during the use of an oxygen analyzer to ensure accurate and reliable measurements. Hence, it is essential to limit each of them to optimize the performance and accuracy of the oxygen analysis process.