Which of the following is true regarding the calibration of an oxygen analyzer?

Regular calibration of an oxygen analyzer is essential to ensure its accuracy and reliability. Over time, factors such as wear, environmental conditions, and component aging can affect the performance of the analyzer. By calibrating the analyzer on a regular basis, divers can trust that the readings they obtain are reflective of the actual oxygen content in the gas mixture. This is critical for safe diving practices, particularly when using nitrox, where the correct oxygen percentage is vital for managing exposure and avoiding toxic effects.

Calibration typically involves using a reference gas of known oxygen content to adjust the analyzer's readings, ensuring they align with that standard. This process is necessary regardless of the portability of the analyzer, as accuracy is paramount for all types of devices in diving scenarios. Regular calibration helps maintain consistent performance and promotes safety during dives that utilize enriched air nitrox.