Image unavailable
Image unavailable
Rosemount
Rosemount 975UR Ultraviolet Infrared Flame Detector
Quote on request
No online payment · add lines to RFQ BOM
Rosemount 975UR: UV+IR; <20 ms; ~100°×95° FOV; 18–32 Vdc; HART/Modbus. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Approvals
ATEX; IECEx; FM; CSA; other regional Ex approvals per PDS
Sensing
Combined ultraviolet (0.185–0.260 µm) and infrared (4.3–4.8 µm) flame detection for hydrocarbon fires
Response Time
Ultra-fast response under 20 ms for flash fires (typical selectable settings)
Detection Range
Typical gasoline/n-heptane detection on the order of ~28 m (93 ft) per PDS
Field Of View
Approximately 100° horizontal × 95° vertical (per product documentation)
Outputs
Relays, 4–20 mA, HART, RS-485 Modbus
Fits combined UV/IR hydrocarbon flame detection where you need a Rosemount 975UR—ultraviolet (about 0.185–0.260 µm) plus infrared (about 4.3–4.8 µm) detector with ultra-fast response under 20 ms, FOV about 100°×95°, 18–32 Vdc supply, and relays / 4–20 mA / HART / Modbus outputs.
Key advantages
- Sensing — Combined UV + IR for hydrocarbon fires
- Response — Under 20 ms for flash fires (typical selectable)
- FOV — About 100° H × 95° V
- Power — 18–32 Vdc nominal
- Outputs — Relays, 4–20 mA, HART, RS-485 Modbus
Typical applications
- Hydrocarbon process units.
- Loading racks.
- Industrial hazardous areas.
Selection guide
- UV / IR / combined logic
- Output set
- Heated optics
Common mistakes
- Wrong logic for nuisance sources.
- Blocked FOV.
- Supply outside 18–32 Vdc.
When to RFQ / what to tell us
- Logic/outputs.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 43518 |
| Brand | Rosemount |
| Model | 975UR Flame Detector |
| Product type | Flame Detector |
| Sensing | Combined ultraviolet (0.185–0.260 µm) and infrared (4.3–4.8 µm) flame detection for hydrocarbon fires |
| Response time | Ultra-fast response under 20 ms for flash fires (typical selectable settings) |
| Detection range | Typical gasoline/n-heptane detection on the order of ~28 m (93 ft) per PDS |
| Field of view | Approximately 100° horizontal × 95° vertical (per product documentation) |
| Outputs | Relays, 4–20 mA, HART, RS-485 Modbus |
| Power | 18–32 Vdc nominal supply |
| Optics | Heated optics to reduce condensation/icing effects |
| Diagnostics | Built-in self-test / BIT features per 975 family |
Documents
FAQ
Q: Sensing bands? A: UV ~0.185–0.260 µm and IR ~4.3–4.8 µm.
Q: Power? A: 18–32 Vdc nominal.
Q: What should I send for a quote? A: Logic/outputs, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Approvals | ATEX; IECEx; FM; CSA; other regional Ex approvals per PDS |
| Sensing | Combined ultraviolet (0.185–0.260 µm) and infrared (4.3–4.8 µm) flame detection for hydrocarbon fires |
| Response Time | Ultra-fast response under 20 ms for flash fires (typical selectable settings) |
| Detection Range | Typical gasoline/n-heptane detection on the order of ~28 m (93 ft) per PDS |
| Field Of View | Approximately 100° horizontal × 95° vertical (per product documentation) |
| Outputs | Relays, 4–20 mA, HART, RS-485 Modbus |
| Power | 18–32 Vdc nominal supply |
| Optics | Heated optics to reduce condensation/icing effects |
| Enclosure | Rugged flame-detector housing for hazardous industrial areas |
| Diagnostics | Built-in self-test / BIT features per 975 family |
| Special Features | Selectable UV, IR, or combined sensing logic; part of Rosemount 975 flame detector family |
| Product Type Note | 975UR UV/IR variant; distinct from 975MR multispectrum IR (SKU 43516 in-flight) |