EMERSON
Measurement Instrumentation
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Rosemount™ 975 Flame Detector

The Rosemount™ 975 Series flame detectors provide fast, reliable industrial fire detection using UV/IR and multispectrum infrared technologies for hazardous environments.

The Rosemount 975 Series offers advanced flame detection with QuadSense™ IR3 and UV/IR technologies, ensuring rapid response, long-range detection, and high false alarm immunity. Built for harsh environments, all models have heated optics and rugged construction. Easily configurable detection parameters support RS-485 Modbus® and HART® for efficient monitoring and maintenance.

Key Features

  • Choose from models with QuadSense™ IR3 and UV/IR Dual-Sensors
  • Up to six sensitivity levels, adapting to any application
  • High speed response time under 50 msec
  • Proven false alarm immunity using multi-spectrum UV/IR sensors, advanced digital signal processing, sophisticated algorithms, and high immunity to sunlight, welding, and environmental interference.
  • Automatic built‑in test for continuous optical and electronics integrity verification
  • Two mode Heated window - for operation in harsh weather conditions (snow, ice, condensation)
  • Relays (3) for Alarm, Fault and Auxiliary
  • 0–20 mA (stepped)
  • HART™ Protocol for maintenance and asset management
  • High Reliability - minimum 150,000 hours Mean Time Before Failure (MTBF)
  • 5-Year Warranty
  • User programmable via HART® 7 or RS-485 Modbus®