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Rosemount
Rosemount 975UF Ultra Fast UV/IR Flame Detector
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Rosemount 975UF: ultra-fast UV/IR; detect <20 ms; HART/Modbus; heated optics. RFQ.
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RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Output
Multiple outputs including Relays, 0–20 mA, HART, Modbus RS-485
Supply
Per Rosemount 975 product data sheet power options
Protection
Hazardous-area certified enclosure (see OEM approvals)
Ambient temperature
−76 to +185 °F (−60 to +85 °C)
Approvals
SIL3 compatible; Worldwide hazardous-area certifications per Emerson PDS
Detection Type
Ultra-fast ultraviolet infrared (UV/IR) flame detector with selectable UV and IR channels; Hydrogen fire detection (975UF)
Fits ultra-fast flame detection where you need a Rosemount 975UF. It is a UV/IR detector with selectable UV and IR channels, fire detection in under 20 ms, hydrocarbon ranges up to about 300 ft (90 m) by fuel/sensitivity, and HART / Modbus / relay outputs.
Key advantages
- Type — Ultra-fast UV/IR with selectable channels
- Response — Detects fire in under 20 ms
- Range — Hydrocarbon fires up to about 300 ft (90 m) class
- Temp — About −60 to +85 °C
- Comms — HART and Modbus RS-485
Typical applications
- Flash-fire risk areas.
- Hydrogen-capable configurations.
- High-speed process protection.
Selection guide
- UV/IR logic
- Sensitivity
- Heated optics
Common mistakes
- Arc/welding in FOV.
- Dirty optics.
- Wrong channel logic for fuel.
When to RFQ / what to tell us
- Config/options.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 43517 |
| Brand | Rosemount |
| Model | 975UF Flame Detector |
| Product type | Flame Detector |
| Detection type | Ultra-fast ultraviolet infrared (UV/IR) flame detector with selectable UV and IR channels; Hydrogen fire detection (975UF) |
| Detection range | Hydrocarbon-based fuel and gas fires at up to 300 ft (90 m) depending on fuel/sensitivity (family performance) |
| Response time | Detects fire in under 20 ms; high-speed response under 50 ms |
| Ambient temperature | −76 to +185 °F (−60 to +85 °C) |
| Output signal | Multiple outputs including Relays, 0–20 mA, HART, Modbus RS-485 |
| Special features | Built-in optical integrity BIT; two-mode heated optics; event log; plug-and-play factory calibration |
| Communications | HART and Modbus RS-485 configuration/monitoring |
Documents
FAQ
Q: Response? A: Under 20 ms detection class.
Q: Sensing? A: Ultraviolet and infrared channels.
Q: What should I send for a quote? A: Config/options, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Output | Multiple outputs including Relays, 0–20 mA, HART, Modbus RS-485 |
| Supply | Per Rosemount 975 product data sheet power options |
| Protection | Hazardous-area certified enclosure (see OEM approvals) |
| Ambient temperature | −76 to +185 °F (−60 to +85 °C) |
| Approvals | SIL3 compatible; Worldwide hazardous-area certifications per Emerson PDS |
| Detection Type | Ultra-fast ultraviolet infrared (UV/IR) flame detector with selectable UV and IR channels; Hydrogen fire detection (975UF) |
| Detection Range | Hydrocarbon-based fuel and gas fires at up to 300 ft (90 m) depending on fuel/sensitivity (family performance) |
| Response Time | Detects fire in under 20 ms; high-speed response under 50 ms |
| Field Of View | Per Emerson 975 PDS / UF configuration (see OEM FOV tables) |
| Enclosure Material | Rugged flame-detector housing with heated optics options |
| Mtbf | 150,000 hours MTBF (family) |
| Special Features | Built-in optical integrity BIT; two-mode heated optics; event log; plug-and-play factory calibration |
| Communications | HART and Modbus RS-485 configuration/monitoring |
| Warranty | Five-year warranty (Emerson PDS) |