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SRZ-CF25F1 oxygen sensor Replaces Figaro KE-25F1
SRZ-CF25F1 Oxygen Sensor replaces Figaro Model KE-25F1 oxygen sensor. It is a galvanic type micro fuel cell and is specific to oxygen. Designed for O2 analysis in gas streams containing any level of CO2 gas; acidic electrolyte formulation used in the sensor makes it compatible with CO2 and…
Technical information
Product details
Technical overview
SRZ-CF25F1 Oxygen Sensor replaces Figaro Model KE-25F1 oxygen sensor. It is a galvanic type micro fuel cell and is specific to oxygen. Designed for O2 analysis in gas streams containing any level of CO2 gas; acidic electrolyte formulation used in the sensor makes it compatible with CO2 and other acid gases. It offers longer life without signal drift and minimizes periodic calibration requirement. AST brand sensors are designed, developed and manufactured in the USA.
Applications and guidance
AST offers SRZ-CF25F1 Oxygen Sensor as a direct replacement to Figaro KE-25F1 oxygen sensor. The SRZ-CF25F1 oxygen sensor is a high-performance electrochemical oxygen sensor designed for accurate percent-level oxygen measurement in challenging gas environments. Many industrial processes involve reactive or acidic gases. The drop-in design of this sensor simplifies installation and helps minimize equipment downtime. The SRZ-CF25F1 oxygen sensor is particularly well suited for measuring oxygen concentrations in gas streams containing high levels of acid gases such as CO₂. Conventional oxygen sensors can experience performance challenges in these environments.
The sensor design combines a super-activated Pb anode material, a smooth-surfaced cathode, and a proprietary electrolyte mixture. Together, these components promote efficient utilization of the anode material, resulting in excellent long-term stability and measurement accuracy. In addition, an onboard thermistor-resistor network compensates the sensor signal for temperature variations. Therefore, the sensor maintains stable performance even when ambient temperature fluctuates.
The sensor uses a proprietary electrolyte formulation that improves tolerance to gas streams containing high levels of CO₂ and trace amounts of H₂S and SO₂ gases. To ensure consistent performance, AST thoroughly tests every sensor for output and stability. Although the SRZ-CF25F1 % Oxygen Sensor specifically targets oxygen measurement in acid gas environments, its capabilities extend beyond these applications. Users can also employ the sensor to measure oxygen in inert gas streams.
AST designs, develops, and manufactures all of its oxygen sensors in the USA. By controlling the entire engineering and manufacturing process, AST maintains consistent quality and performance from development through production. This approach allows AST to focus specifically on oxygen-sensing technology and deliver sensors designed for demanding industrial applications.
Replaces
FIGARO Model KE-25F1
Specifications and compatibility references
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