Product Overview

The ABB SF810INT-LOS-UV-T-L (Part Number: F810I-LOS-UV-TL) is a high-performance ultraviolet flame scanner designed for direct Line-of-Sight (LOS) mounting. Unlike fiber-optic variants, this model mounts directly to the burner front, providing a clear, unobstructed view of the flame zone. It utilizes a solid-state Silicon Carbide (SiC) photodiode to detect the specific UV radiation emitted during combustion while remaining blind to background infrared from hot refractory surfaces. We supply this unit as 100% Brand New and Original, providing a fail-safe solution for utility boilers, industrial furnaces, and complex multi-burner configurations.

Technical Specifications

Engineering Advantages

• Optimized Direct Viewing: The LOS configuration eliminates the signal attenuation associated with fiber-optic cables. This provides the highest possible signal-to-noise ratio, making it the preferred choice for wall-fired and corner-fired boilers where a direct path to the flame exists.

• SiC Photodiode Precision: The Silicon Carbide sensor ignores visible light and infrared radiation. This prevents "false flame" signals caused by glowing hot furnace walls or molten slag, ensuring the scanner only reacts to active combustion.

• Fail-Safe Architecture: The device employs a deterministic safety logic that defaults to a "no flame" status upon detecting an internal hardware fault or power loss. This design supports SIL-rated safety instrumented systems for critical burner management.

• Integrated Communication Suite: Dual RS-485 ports support both Modbus RTU and Profibus DP-V1. This allows for seamless integration into ABB Symphony Plus, 800xA, or third-party DCS environments for real-time monitoring of flame intensity and frequency.

• Severe Duty Durability: Enclosed in a stainless-steel housing with an IP66 rating, the scanner withstands the vibrations and corrosive atmospheres typical of heavy industry. The integrated lens-cleaning air interface (400 l/min) prevents ash and soot buildup to ensure continuous operation.

FAQs

What is the primary advantage of the LOS model over the FOC version?

The LOS (Line-of-Sight) model offers a simpler installation and higher signal sensitivity because it lacks fiber-optic components. It is ideal for burners where the scanner can be mounted with a direct, straight-line view of the flame.

Does this scanner require cooling air?

Yes. You must provide a continuous lens-cleaning airflow of 400 l/min (14 SCFM). This air supply maintains a positive pressure (300 mm H₂O above windbox) to keep the optics clear of debris and provide essential cooling for the scanner tip.

How does the SF810INT-LOS-UV-T-L handle different fuel types?

The SiC photodiode is sensitive to the 280 nm UV peak found in the combustion of natural gas, fuel oils, coal, and sulfur gas. You can calibrate the scanner's sensitivity and frequency filters via the local 4-button interface to match the specific characteristics of your fuel.

Is this part interchangeable with the F810I-LOS-UV-TL-C-W?

The part numbers refer to the same high-specification UV scanner assembly within the SF810 series. We confirm that this unit is 100% Brand New and meets all original ABB factory specifications for industrial flame safety.