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Application Scenarios:
In a typical power plant or refinery scenario, the 95UVS2-1 is mounted on the burner front or furnace wall, peering through a sight tube into the combustion chamber. During startup, it confirms pilot ignition; during main flame operation, it continuously monitors the UV “flicker” pattern. If the flame is lost (e.g., due to fuel interruption), the scanner’s internal relay de-energizes within seconds, triggering a safety shutdown (lockout) of the fuel valves. Its “Model Insight” algorithm helps it ignore false UV signals from hot refractory or electric arcs, reducing nuisance trips.
Parameter:
| Parameter Category | Specification Details |
|---|---|
| Manufacturer P/N | 95UVS2-1 |
| Brand / OEM | Fireye (Honeywell) |
| Product Series | InSight I (Enhanced Model) |
| Detection Principle | Ultraviolet (UV) Spectra, 185–260 nm (Solar Blind Region) |
| Key Feature | Integrated Amplifier & Relay (All-in-One Unit) |
| Flame Relay | Internal SPDT Relay (Flame ON/OFF) |
| Analog Output | 4–20 mA (Proportional to UV Intensity) |
| Signal Display | 8-Character Alphanumeric LED Display |
| Control Buttons | 4-Button Keypad (Up, Down, Select, Program) |
| Power Supply | 24 VDC (±10%), ~0.35 A |
| Electrical Connection | 12-Pin Quick-Disconnect (Standard) or 10ft Cable (CG models) |
| Enclosure Rating | NEMA 4X / IP66 (Weatherproof & Corrosion Resistant) |
| Mounting | 1″ NPT Thread or Flange Mount (Requires Cooling Air) |
| Operating Temp. | -40°C to +65°C (Scanner Body); Sight Tube up to +175°C |
| Cooling Air | Mandatory: ~4 SCFM (113 L/min) Clean, Dry Air |
| Response Time | Flame Detection: < 2 sec; Flame Failure: 1–4 sec (Configurable) |
| Compliance | FM Approved, UL, CSA; Meets NFPA 85/86 Standards |
Technical Principles and Innovative Values:
- Innovation Point 1: All-in-One Intelligence: Unlike traditional systems requiring a separate amplifier box, the 95UVS2-1 integrates the sensor, signal processor, and safety relay into one compact, sealed housing. This “smart scanner” architecture drastically reduces installation wiring, minimizes potential failure points, and simplifies troubleshooting, as all parameters and fault codes are accessible via the onboard display.
- Innovation Point 2: Model Insight Algorithm: The “Enhanced” (S2) designation refers to its advanced flame signature recognition. Instead of just detecting raw UV intensity, it analyzes the flame’s flicker frequency (modulation). This allows it to create a “model” of the true flame, effectively discriminating against background radiation from hot brickwork or stray UV sources (like welding), which is a common cause of false flame signals in older detectors.
- Innovation Point 3: Comprehensive Self-Diagnostics: The scanner continuously runs internal health checks on its UV tube, circuitry, and power supply. If a fault is detected (e.g., sensor failure, loss of cooling), it will de-energize the flame relay and display a specific error code (e.g., “Too HOT!”). This proactive fault reporting enables predictive maintenance before a critical safety failure occurs.
