Product Overview

The ABB SF810INT-FOC-UV-T-L (Part Number: F810I-LOS-UV-TL) represents a high-integrity UV flame scanning solution designed for the most demanding combustion environments. Utilizing a solid-state Silicon Carbide (SiC) photodiode, it detects ultraviolet radiation from flames while ignoring background IR and visible light interference. The fiber optic configuration (FOC) separates the sensor head from the electronics, allowing the probe to monitor flames in high-temperature zones up to 350°C while housing sensitive circuitry in cooler, protected areas. We provide this unit as 100% Brand New and Original, ensuring fail-safe performance for utility and industrial boiler safety.

Technical Specifications

Engineering Advantages

• Extreme Thermal Resilience: The fiber optic sensor head tolerates ambient temperatures up to 350°C. This solves the primary failure point in wall-fired and cyclone burners where standard integrated scanners would suffer thermal degradation.

• Fail-Safe "No Flame" Default: The internal logic prioritizes safety by defaulting to a "No Flame" state upon detecting any internal fault or loss of power. This deterministic behavior satisfies the requirements for SIL-rated safety instrumented systems.

• Superior Fuel Discrimination: The SiC sensor specifically targets the 280 nm UV spectrum. This allows the scanner to distinguish the target flame from adjacent burners or hot refractory background radiation, even in multi-fuel environments burning pulverized coal, heavy oil, or waste gas.

• Dual Communication Integration: Equipped with both Modbus RTU and Profibus DP-V1, the SF810INT integrates natively into ABB Symphony Plus, 800xA, and third-party DCS platforms. It provides real-time diagnostics on flame quality and frequency directly to the operator console.

• Contamination Resistance: The integrated lens cleaning air interface (400 l/min) prevents soot, ash, and moisture from accumulating on the lens. This ensures a clear line of sight and reduces maintenance intervals in heavy fuel oil and coal-fired applications.

FAQs

Does the SF810INT-FOC-UV-T-L require external cooling?

The fiber optic tip requires a continuous supply of instrument air (400 l/min) not only for lens cleaning but also for cooling. Failure to maintain air pressure at 300 mm H₂O above the windbox pressure will lead to overheating of the sensor tip.

Can this scanner detect gas flames as effectively as oil flames?

Yes. The UV solid-state SiC photodiode is highly sensitive to the UV radiation emitted during the combustion of natural gas, coke oven gas, and various fuel oils, making it a versatile choice for multi-fuel burners.

How do I calibrate the scanner for a specific burner?

The unit features a local interface with four push-buttons and a 3-digit LED display. You can manually adjust gain and filter settings to optimize detection for your specific fuel type and burner geometry during commissioning.

Is this unit a direct replacement for older F810I models?

The SF810INT-FOC-UV-T-L is compatible with many legacy ABB flame scanning systems, but you must verify the guide pipe dimensions (257mm length) and power supply requirements before retrofitting. This unit is provided as 100% Brand New to ensure full compliance with current industrial safety standards.