Flame Sensors
Gas Turbines • Hydrogen and Hybrid-Fuel Combustion Systems • Industrial Burner Applications
500 million hours of fired operation
Reuter-Stokes' flame sensors are trusted across the globe to deliver precise, rapid flame detection in gas turbines. Whether you're upgrading legacy systems or optimizing performance, our Silicon Carbide (SiC) optical photodiode technology ensures unmatched sensitivity, fast response, and reduced maintenance.
Why are flame sensors important?
Flame sensors are crucial to maintaining gas turbine safety. Uncombusted fuel will fill the combustion chamber, the turbine section, and the exhaust section of the gas turbine if the flame is not present in the combustion chamber. Once the concentration of fuel reaches the Lower Explosive Limit, the fuel can combust causing an explosion.
Reuter-Stokes flame sensors are ETL, ATEX, and IECEx certified.
Flame sensing solutions from Reuter-Stokes
Gas turbines use one of two flame sensors from Reuter-Stokes— the Flame Tracker or the Flame Tracker Dry 325 (FTD 325).
The original Flame Tracker employs a water-cooling system to keep the sensor temperature below 150° C. Conversely, the FTD 325 uses innovative remote electronics technology to eliminate the need for water cooling on both the hot and cool end of the sensor.
Providing a 4–20 mA industry-standard output signal, our flame sensors operate reliably with any fuel, with or without steam injection. Unlike older flame sensors that require high voltage for operation, the Flame Tracker requires low voltage, which eliminates special wiring and explosion-proof conduit requirements.
Flame Tracker
Response time:
<0.025 seconds
Temperature range:
-20ºF to +300ºF (-30ºC to +150ºC)
455ºF (235ºC) with specified water or air cooling
- Quick disconnect connectors allow sensor replacement time to be reduced from hours to minutes.
- Improved sensor-cooling feature lowers the impact of surrounding heat and extends the life of electronics.
- Aeroderivative approved - learn more
Flame Tracker Dry 325 (FTD 325)
Response time:
<0.175 seconds
Temperature range:
Cool end: -51°C to 140°C (-60°F to 284°F)
Hot end: -51°C to 325°C (-60°F to 617°F)
- Temperature-sensitive electronics are moved to a low spot in the turbine compartment where temperatures are below 140°C operational limits; The electrical signal from the hot end is transmitted to the cool end via a 30-foot long mineral insulated cable.
- Mineral insulated cable eliminates the need for electrical conduit and the use of fragile fiber optic cable.
