RS-FS-9001 GE Flame Sensor new in stock

• Brand
  GE
• Model
  RS-FS-9001
• Product Name
  Flame Tracker SiC Ultraviolet Flame Sensor
• Dimensions
  221 mm × 109 mm × 62 mm
• Weight
  1.6 kg
• Place of Origin
  United States
• HS Code
  85437099
• Operating Temperature
  -40 °C to +85 °C
• Storage Temperature
  -70 °C to +90°C
• Power Supply
  4‑20 mA
• Warranty
  1 year
• Status
  new and original

GE Reuter-Stokes RS-FS-9001

Input Specifications

Power Input

Nominal Supply Voltage: 24 V DC

Operating Voltage Range: 12 V DC to 30 V DC

Minimum Supply Current: 100 mA

Adopts two-wire loop-powered architecture; operating power is delivered through the signal loop circuit.

Optical Input

Sensing Input: Detects ultraviolet (UV) radiation through a sapphire viewing window with silicon-carbide (SiC) photodiode sensor element.

Minimum Detectable Flame Intensity: Generates output greater than 5 mA under defined UV photon flux conditions.

Output Specifications

Analog Output

Analog Signal Output: 4-20 mA DC two-wire loop signal

4 mA: Represents no-flame state or internal device fault

5-20 mA: Proportional analog value corresponding to real-time flame intensity; peak output lower than 21 mA

Maximum Loop Burden Resistance: 0-500 Ω

Communication Output

Digital Interface: Optional RS-422 / RS-485 port supporting Modbus-RTU protocol. It transmits diagnostic information, sensor health status and measured flame intensity values to upper monitoring systems.

Internal Self-Diagnosis Output

Device faults are reported by variation of analog loop current. Reduced current level may point to sensor damage, lens fouling or internal hardware malfunction.

No integrated relay contact outputs; all operating and fault status are conveyed via loop current or digital communication bus.

GE Reuter-Stokes RS-FS-9001 Commissioning Steps

Pre-commissioning Safety Notice

Isolate furnace and combustion equipment prior to installation and commissioning. Verify cooling air or cooling-water supply satisfies technical specifications. Apply anti-static measures for wiring activities. This two-wire loop-powered UV flame sensor can suffer permanent damage from improper wiring.

1. Mechanical Installation & Pre-check

Mount the RS-FS-9001 securely at the burner flame-viewing port and torque threaded connections as required. Confirm cooling medium piping is correctly connected with compliant flow parameters to prevent over-heating damage. Inspect and gently clean the sapphire optical window to remove soot and dirt without scratching its surface. Lay shielded instrument cables, complete cable-gland sealing and implement single-point shield grounding.

2. Electrical Wiring

Carry out all wiring with power disconnected. Connect the two-wire loop between the sensor and DCS/PLC analog input module, ensure loop burden resistance stays within 0-500 Ω and 24 V DC polarity is correct. Where optional RS-422/RS-485 Modbus-RTU communication is needed, route differential signal wiring separately and keep instrument cables physically away from high-power cables for noise reduction. Perform full terminal inspection to eliminate short-circuit and open-circuit risks.

3. Power-on Verification & Field Functional Check

Switch on the 24 V DC loop supply and wait 30-60 seconds for sensor initialization. With the sapphire window fully covered, the analog reading should sit between 3.7-4.1 mA for the no-flame condition. Use a dedicated UV light source (standard LED torches are not suitable) for qualitative function testing; output current should rise above 8 mA under UV exposure. Persistent low current without light blockage indicates window fouling, wiring defects or internal sensor failure.

4. Control System Parameter Configuration

Set DCS/PLC analog input range to 4-20 mA, assign 4 mA for “No Flame / Fault” and 5-20 mA for proportional flame intensity. Define a suitable flame-detection trigger threshold based on site combustion conditions. Match Modbus-RTU communication parameters including baud rate, data bits, stop bits, parity and station address with the host system, and validate register readings for flame intensity and diagnostic status. Configure reasonable flame-loss delay to suppress false trips from temporary flame flickering.

5. Off-line Functional Simulation & On-site Burner Commissioning

With main fuel supply disabled, complete cold-state simulation tests: verify “No Flame” status under dark conditions, “Flame Present” status under UV stimulus, and correct sensor-fault alarms for simulated loop open-/short-circuits. After finishing pre-start safety checks and enabling formal cooling supply, start the burner according to standard procedures. Observe stable 5-20 mA proportional output under normal combustion and watch out for signal fluctuation caused by contamination or electromagnetic interference. Execute flame-loss trip test by cutting fuel supply; confirm analog output falls to the 4 mA band and corresponding flame-loss alarm plus interlock actions are triggered.

6. Post-commissioning Confirmation & Documentation

Log key parameters including loop burden resistance, flame-detection threshold and communication settings into the commissioning report. Re-examine sapphire window integrity and stable cooling-medium flow. Back-up all control-system configurations for archive purpose and keep complete records of on-site anomalies and resolution measures.

 
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