Description
Fireye 65UV5-1004EQD is a self-checking ultraviolet flame scanner designed for continuous industrial burner monitoring applications. It detects ultraviolet radiation emitted by gas, oil, and combination fuel flames, providing high-speed trip signals to burner management systems (BMS) upon flame failure.
Supply and Logistics Status
- Condition: New Original / Factory Sealed
- Availability: In stock for immediate dispatch
- Standard Lead Time: 1 to 3 business days for order processing
- Warranty: 12-month standard replacement warranty from date of delivery
- Pricing Note: Listed price is indicative and subject to market conditions. Contact our sales desk for a firm quotation and bulk availability.
Technical Specifications
| Parameter | Specification Value |
| Manufacturer | Fireye |
| Product Series | 65UV5 |
| Model / Catalog Number | 65UV5-1004EQD |
| Sensor Type | Ultraviolet (UV) vacuum phototube |
| Spectral Response | 290 to 320 nanometers |
| Self-Checking Feature | Mechanical shutter assembly (operates approximately once per minute) |
| Input Voltage | 24 V DC (supplied via Fireye amplifier or compatible control chassis) |
| Current Consumption | 100 mA (typical) |
| Signal Output | Analog flame signal output (0 to 5 V DC or modulated current depending on paired amplifier) |
| Response Time | Less than 1 second flame failure response time |
| Housing Material | Cast aluminum with corrosion-resistant finish |
| Electrical Connection | Quick-disconnect (QD) connector (mini-quick style) |
| Purge Air Requirements | 4 SCFM (0.11 m3/min) at 2 to 5 psi above furnace pressure |
| Operating Temperature | −40 to +70 °C at the housing |
| Enclosure Protection | NEMA 4X / IP66 |
| Certifications | FM, CSA, CE (verify exact approvals with manufacturer documentation) |
Operational Principles and Field Deployment
In burner management system retrofits and commissioning projects, the 65UV5-1004EQD mounts directly to a sight pipe aimed at the primary combustion zone. The internal mechanical shutter periodically moves in front of the UV tube to test the electronics and sensor tube integrity, satisfying safety standards for continuously fired burners.
Key Installation Considerations
- Purge Air Connection: The scanner housing includes a 3/8-inch NPT connection for cooling and purge air. Continuous air supply is mandatory to prevent optical lens fouling from soot and to maintain housing temperatures below +70 °C.
- Wiring and Grounding: Use shielded cable for signal transmission back to the burner control amplifier. Keep signal runs separate from high-voltage ignition transformer wiring to prevent electromagnetic interference (EMI) tripping.
- Amplifier Compatibility: Verify that the scanner is paired with the correct Fireye amplifier card (such as series microM, Flame-Monitor, or BurnerLogix) designed for UV self-checking inputs.
Frequently Asked Questions
What does the “EQD” suffix indicate on this model?
The “EQD” designation denotes the inclusion of an electrical quick-disconnect fitting, which simplifies field wiring, removal, and maintenance without requiring hardwired terminal disconnection.
How often should the optical lens be cleaned?
Inspection intervals depend on fuel type and combustion efficiency. For heavy oil applications, inspect and clean the quartz lens weekly; for clean natural gas, monthly intervals are typically sufficient.
Can this scanner distinguish between pilot flame and main flame?
Ultraviolet scanners detect total UV radiation in their line of sight. Discrimination relies on physical sighting angle adjustments, orifice sizing, and proper scanner alignment during commissioning rather than flicker frequency analysis.
