中文版
Description
Technical Specifications
| Product Model | **Fireye 25SU3-2000** |
| Manufacturer | Fireye (Carrier Global Corporation) |
| Product Type | Flame Amplifier/Safety Control Unit |
| Input Voltage | 120 VAC, 50/60 Hz |
| Detection Type | UV/IR Flame Detection (Sensor Input) |
| Output Signals | SPDT Relay (5A @ 240 VAC), 4-20 mA Analog |
| Response Time | <3 sec (Flame Loss), <1 sec (Flame Proven) |
| Operating Temperature | -40°C to 70°C |
| Certifications | FM, CSA, UL 353, EN 230:2015 |
25SU3-2000
Key Features & Advantages
The **Fireye 25SU3-2000** is a flame safeguard control unit designed for industrial burners and combustion systems. It integrates flame signal amplification, safety logic, and fuel valve control into a single unit. The module supports both UV and IR flame sensors, with automatic sensitivity adjustment to prevent false alarms during burner light-off. Its dual-stage flame detection ensures safe start-up sequences and shutdowns per NFPA 85/86 standards.
Integrated self-test routines validate sensor and circuitry health, while the 4-20 mA output provides real-time flame signal strength for SCADA integration. The “2000” variant includes enhanced EMI shielding for use near VFDs and arc welding equipment. Compatible with Fireye’s EPO burner management systems for multi-burner configurations.
Applications
Critical for **industrial boilers** and **thermal oxidizers** requiring NFPA compliance. Used in **process heating systems** for refining and chemical processing. **Incinerators** leverage its dual-sensor input for waste flame monitoring. Also deployed in **heat-treat furnaces** and **gas turbine combustors** where rapid flame failure detection is essential.
Related Products
**Fireye 45UV5**: UV Flame Scanner.
**EPO3 Programmable Controller**.
**Q4500 Ignition Transformer**.
**S7800A Burner Management System**.
Installation & Maintenance
**Installation**: Mount in a NEMA 4X enclosure near the burner front. Use shielded, high-temperature cable for sensor connections. Configure flame signal thresholds via front-panel potentiometers. **Testing**: Validate relay logic with a simulated flame signal (Fireye test lamp P/N 040448). **Maintenance**: Clean sensor sighting tubes quarterly; recalibrate sensitivity annually. Replace electrolytic capacitors every 8 years.
Product Assurance
The 25SU3-2000 undergoes 1,000-hour operational testing under thermal cycling (-40°C to 85°C). Rated for 100,000+ relay cycles. Includes a 2-year warranty with 15-year lifecycle support. Complies with EN 298 for automatic burner control and API 556 for process heater safety. Fireye’s Global Service Network offers combustion safety audits and legacy system retrofits.
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