What instrument is typically used to measure carbon monoxide (CO) concentration?

The combustion analyzer is the instrument primarily used to measure the concentration of carbon monoxide (CO) in combustion appliances. It provides accurate and specific data about the levels of CO present in the flue gases produced during combustion processes. This measurement is critical for ensuring safety, as elevated CO levels can indicate incomplete combustion and potential hazards to health and safety.

Combustion analyzers not only measure CO but also evaluate other combustion-related parameters such as oxygen levels, flue gas temperature, and efficiency of the appliance. This comprehensive analysis helps in diagnosing appliance performance and identifying issues that may lead to unsafe operating conditions.

While a manometer is used to measure gas pressure, a digital gauge may read various types of measurements depending on its design, and a smoke detector is primarily designed to detect smoke from combustion, none of these instruments specifically focus on measuring carbon monoxide concentration.