Product Advantages

1. Outstanding detection stability under atomizing steam conditions. Equipped with SiC light-sensing elements optimized for wet low-NOx combustion, it avoids severe attenuation of detection signals caused by water mist and fuel mist, greatly reducing the frequency of false flame-out alarms.
2. Integrated two-wire 4–20 mA design shares a single cable for power supply and signal transmission, cutting wiring costs. It is compatible with signal acquisition channels of mainstream DCS and gas turbine controllers.
3. Wide-temperature and high-pressure resistant mechanical housing. Constructed with a 316 stainless steel mounting base and a 304 stainless steel sealed outer shell, it operates stably from -40°C to 150°C under standard conditions. With an optional water cooling kit, it can withstand ambient temperatures up to 235°C for short periods and a maximum process pressure of 2.8 MPa.
4. Full compliance with explosion-proof standards. It meets North American, EU and international explosion-proof specifications simultaneously. No extra explosion-proof conversion accessories are required, allowing direct deployment in Zone 1 and Zone 2 hazardous areas of chemical plants and power stations.
5. Vibration-resistant reinforced industrial structure. Maintains stable performance under continuous vibration: 0.1-inch amplitude at 10–40 Hz and 8G vibration at 40–2000 Hz, suitable for installation on gas turbine bodies with high-frequency vibration.
6. Automatic gain adjustment circuit. It automatically switches amplification gain for high-brightness and dim flames without signal saturation, delivering accurate linear output across a wide range of combustion intensities.
7. Non-detachable sealed welding construction. Factory calibration data is permanently locked, eliminating accuracy drift risks from unauthorized disassembly and extending maintenance calibration intervals.
8. Standard OEM replacement spare part. All variants share identical mechanical interfaces and electrical definitions for direct interchange between old and new models. No modifications to mounting brackets or wiring circuits are needed during retrofits.

• RS: Brand prefix of Reuter-Stokes division
• FS: Category code for Flame Sensor
• 9001: Base model code for standard SiC two-wire Flame Tracker sensor
• 362A1052: General part code for GE gas turbine system supporting components

• P004: Version batch code, representing standard general industrial configuration. Distinguished from high-temperature enhanced version P104 and low-sensitivity ILG version P204

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• Product Specifications

• Power supply range: DC 12V–30V, rated operating voltage 24 VDC, minimum supply current 100 mA, with automatic reverse polarity protection.4 mA corresponds to no flame, and 20 mA corresponds to full flame intensity with linear analog output.Standard sensitivity: 5 mA at 310 nm UV photon flux; customized ILG version reaches 6.5 mA.Maximum allowable total loop resistance: 560 Ω under 24 V supply, with transient withstand voltage up to 42 V.

• Optical Performance

• High-pressure resistant sapphire light-transmitting window; UV detection wavelength band: 185–260 nm. A built-in focusing lens converges light onto the hermetically sealed SiC photodiode.90° wide viewing angle with zero detection blind zone.Response time ≤ 25 ms, enabling instant flame loss signal capture to meet millisecond-level emergency fuel cut-off requirements for gas turbines.

• Mechanical & Environmental Specifications

• Standard mounting interface: 3/4 inch NPT internal thread.Ingress protection rating: IP66, dustproof and resistant to high-pressure water spray.Long-term stable operation under 100% relative humidity without condensation.Withstands peak shock vibration of 14G.The unit is fully filled and sealed with argon gas to isolate internal circuits from dust, oil and gas corrosion.Non-repairable construction; full unit replacement required upon failure.

• Certifications & Compliance

• Certifications including ATEX Ex nA IIC T3 Gc, IECEx, Class I Division 2 and ETL industrial safety approval. All certifications are valid only when used with original designated matching cables.

• Application Industries

• Gas Power Generation

• Continuous flame monitoring for combustion chambers of GE heavy-duty gas turbines, aeroderivative gas turbines and combined cycle power units. Triggers interlock to cut off natural gas and fuel oil supply upon flame loss to prevent deflagration hazards.

• Petrochemical Industry

• Flame detection for heating furnaces, cracking furnaces, reforming furnaces and oil & gas vent flares. Real-time combustion status judgment under explosion-proof conditions to avoid flash explosion risks caused by medium leakage.

• Cogeneration & District Heating

• Furnace flame detection for industrial pulverized coal boilers, gas hot water boilers, thermal oil heaters and waste incinerators, delivering stable monitoring during low-load operation, startup and shutdown phases.

• Coal Chemical Industry

• Flame probes matched to gasifiers and syngas burners, suitable for harsh combustion environments with high water vapor and heavy dust.

• Metallurgy & Manufacturing

• Flame safety monitoring for steel rolling furnaces, annealing furnaces and heat treatment gas furnaces, adaptable to high-temperature and severe vibration workshop environments.

FAQ

Reuter-Stokes Flame Sensor Product Line