Description
The Fireye 65UV5-1004E is an advanced, self-checking integrated ultraviolet (UV) flame scanner designed for continuous monitoring of industrial burner flames.
In field combustion deployments, this device detects ultraviolet radiation emitted by gas, oil, or alternative fuel flames. It incorporates self-checking electronics and signal processing circuitry directly within the scanner housing, eliminating the need for a separate remote amplifier module and providing reliable fail-safe flame monitoring for utility boilers, process heaters, and large thermal oxidizers.
Technical Specifications
| Parameter | Value |
| Manufacturer | Fireye |
| Product Series | 65UV5 Integrated Flame Scanner Series |
| Model / Part Number | 65UV5-1004E |
| Sensor Type | Ultraviolet (UV) phototube sensitive to short-wavelength UV radiation |
| Input Power Voltage | 24 VDC nominal |
| Flame Failure Response Time (FFRT) | Typically 4 seconds (standard configuration dependent) |
| Analog Output | 4–20 mA DC current loop proportional to flame signal strength |
| Mounting Connection | 1-inch NPT threaded mount |
| Enclosure Rating | NEMA 4X / IP66 weather-tight, rugged cast housing |
| Operating Temperature | -40 to +70 °C (-40 to +158 °F) scanner head limits |
Procurement and Availability
- Condition: New Factory Sealed / Surplus Stock options available through specialized combustion control distributors.
- Lead Time: 1 to 3 business days for standard stock items; verify factory availability for specific hazardous-area or regional code variants.
- Warranty: 12-month standard manufacturer or supplier warranty from date of shipment.
- Price: Indicative market pricing applies. Price subject to market conditions; contact us for a firm quote.
Integration and Compatibility Notes
The 65UV5-1004E scanner connects directly to burner management systems (BMS), safety logic solvers, or dedicated Fireye flame safeguard controls (such as BurnerLogix or Flame-Monitor series).
- Purge and Cooling Air: Optical lenses must remain clean to prevent false trips or missed flame signals. Always connect a clean, dry instrument purge air supply to the scanner’s purge connection to prevent dust accumulation and excessive ambient heat soak.
- Electrical Cabling: Run scanner power and 4–20 mA signal wires in dedicated conduits separate from high-voltage ignition transformer lines or variable frequency drive (VFD) power cables to minimize electrical noise interference.
- Self-Checking Shutter: The internal mechanical shutter periodically cycles to verify the integrity of the UV tube and electronic circuit components, ensuring true fail-safe operation in continuous-duty applications.
Frequently Asked Questions
Q: What is the purpose of the 4–20 mA analog output on the 65UV5-1004E? A: The 4–20 mA output provides a continuous real-time signal indicating flame signal strength and signal stability, allowing operators and control systems to monitor combustion quality and trends.
Q: Does this scanner require an external amplifier? A: No. Because it is an “integrated” flame scanner, the signal conditioning, amplification, and self-checking logic are housed entirely within the physical scanner body, outputting direct relay or solid-state flame-present signals alongside the 4–20 mA loop.
Q: Why is purge air required for optical flame scanners? A: Purge air keeps the sight pipe clear of smoke, unburnt fuel residue, and particulate matter, while also cooling the optical sensor window to prevent exceeding maximum operating temperature thresholds.
