ABB FAU810 Flame Analysis Unit

The ABB FAU810 flame analysis unit, comprising modules C87-11006 and C10-12010, is a critical component in industrial burner management systems. Designed for use with UV/IR flame scanners, this flame analysis unit monitors combustion flames in boilers, furnaces, and heaters, providing reliable flame detection and safety shutdown capabilities. It is widely used in power generation, petrochemical refining, and industrial heating applications.

Flame Analysis Technology

The FAU810 flame analysis unit works in conjunction with UV or IR flame scanners to detect the presence or absence of a combustion flame. The unit processes the scanner signal and determines whether a flame is present based on configurable thresholds. Upon flame failure, the unit activates the flame failure relay after a configurable dropout delay (0.2 to 4 seconds). The analog flame signal output (4-20 mA or 0-10 V) provides continuous flame intensity monitoring for diagnostics and burner optimization.

Modular Design and Configuration

The FAU810 features a modular design, with each flame analysis unit consisting of two independent channels. Each channel can receive and process a signal from one flame scanner (SF810, DFS series, or flame rod). The unit's modular construction allows flexible configuration for single-burner or multi-burner applications. The dropout delay is field-adjustable to match burner characteristics, preventing nuisance shutdowns while maintaining safety. The Form C relay outputs can be used to interface with burner management systems (BMS), PLCs, or safety shutdown systems.

Application Domains

The ABB FAU810 flame analysis unit is essential for boiler flame monitoring in power plants, industrial furnace supervision in refineries and chemical plants, burner management systems for package boilers and heaters, and process heater safety shutdown systems. Its wide operating temperature range and IP66 rating make it suitable for harsh outdoor installations. The FAU810 is a standard component in ABB's flame detection portfolio and is widely used in legacy Westinghouse and ABB burner management systems.