Oxygen analyzers are used to determine the concentration of oxygen in a gas, such as air or fuel, usually in industrial applications. The oxygen concentration measurement results are useful for combustion control, process safety, and quality assurance. Oxygen measurements are critical in optimizing combustion and controlling furnace processes such as boiler trimming in power plants, inert gas filling in piping systems, and in combustion control for petrochemical applications.

Oxygen Analyzers typically require calibration from time to time in order to remain accurate. The frequency of these maintenance procedures varies from manufacturer to manufacturer. Some may only need replacing of the electrochemical sensor, while others require cleaning of the sensing chamber or other components. These maintenance tasks can be difficult and time-consuming. When selecting an Oxygen analyzer, potential buyers should take these maintenance considerations into account.

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Yokogawa’s oxygen analyzers utilize the field serviceable zirconium oxide oxygen sensor and precision temperature control to achieve maximum stability, long lifetime and minimal maintenance. These units also feature analog output and Modbus communications making them suitable for integration with your plant control system.

Our oxygen analyzers are designed to be mounted in a variety of control panels and can be used for hot, wet, dusty or corrosive conditions. To protect the Oxygen analyzer from condensation, we recommend installing devices to bring the sample gas to ambient temperature and a liquid rejection instrument capable of stopping larger slugs of moisture from entering the device. Proper sample conditioning not only extends the life of the Oxygen analyzer but helps to ensure accuracy and reliability of measurement.