Overview

The ABB FAU800 Flame Analysis Unit is engineered for continuous flame signal detection and evaluation in industrial combustion systems such as burners, boilers, and furnaces. It supports a wide range of ABB flame sensors, including DFS scanner heads, 4–20 mA and 0–5 V analog sensor heads, and ABB flame rods, providing exceptional flexibility for diverse industrial environments.

Moreover, the FAU800 supports standard Modbus and Profibus communication protocols, enabling seamless connection to burner management and plant control systems. It also includes configurable flame failure trip times, multiple relay contacts, and stable analog output channels, delivering precise monitoring and reliable safety response.

Its compact form factor and DIN-rail mounting simplify installation, while solid-state construction ensures long-term durability in harsh and high-temperature environments often seen in power generation and heavy industry.

Technical Data

Typical Applications

The FAU800 is utilized in industrial environments requiring stable flame detection and safety assurance. For example:

• Corner-fired and tangentially fired utility boilers

• Multi-burner industrial furnaces

• Waste-to-energy incineration systems

• Petrochemical and refining heater units

• High-temperature chemical reaction furnaces

Furthermore, its support for remote diagnostics and fault detection contributes to reduced downtime and improved efficiency. Its modularity makes it suitable for both new systems and retrofit upgrades.

FAQ

Q1: What flame sensors can be used with the FAU800?
A1: ABB DFS heads, 4–20 mA and 0–5 V outputs, and ABB flame rods are supported.

Q2: What is the flame failure response time range?
A2: Adjustable from 0.1 to 2.5 seconds.

Q3: Can the FAU800 connect directly to automation systems?
A3: Yes, it supports communication through Modbus and Profibus.

Q4: What outputs are available?
A4: 3 independent flame relays, 1 fault relay, and 2 analog 4–20 mA channels.

Q5: Is it suitable for harsh industrial conditions?
A5: Yes, it has rugged electronics and a DIN-rail design for reliable operation in harsh environments.