Rosemount 975MR Multi-Spectrum IR Flame Detector

Rosemount 975MR Multi-Spectrum IR Flame Detector: Superior Fire Detection for Enhanced Safety

The Rosemount 975MR Multi-Spectrum Infrared Flame Detector, identified by part number P/N: 975MR1A6S2A1, stands out as a premier flame detection device. It leverages three distinct infrared (IR) sensors to meticulously analyze multi-spectral signals, providing the ability to detect both hydrocarbon gas and liquid fires from considerable distances.

Exceptional Performance

The Rosemount 975MR demonstrates exceptional performance by detecting a gasoline fire as small as 1 square foot (0.1 square meters) from a distance of 215 feet (65 meters) in less than five seconds. This rapid detection capability is coupled with advanced signal processing to minimize false alarms, ensuring the highest level of safety and reliability in critical environments.

Versatile Applications

• Offshore Oil and Gas: The Rosemount 975MR is integral to offshore oil and gas facilities, offering robust fire detection capabilities that enhance operational safety.
• Automotive Manufacturing: In automotive manufacturing plants, this flame detector is crucial for preventing fire-related incidents, protecting both equipment and personnel.
• Power Generation: Power generation facilities benefit from the 975MR’s reliable fire detection around turbines, transformers, and switchgear, acting as a protective barrier against potential fire hazards.
• Chemical Plants: The detector’s quick response to hydrocarbon-based fires makes it an essential safety device in chemical plants, where flammable liquids and gases pose significant risks.
• Petrochemical Processing: For onshore petrochemical processing facilities, the Rosemount 975MR serves as a powerful tool in fire prevention and safety management.

Unique Features of the Rosemount 975MR

• Multi-Spectrum Design: The multi-spectrum design of the detector is optimized for long-distance fire detection while significantly reducing the chances of false alarms.
• Selectable Sensitivity: Users can adjust the sensitivity settings to avoid cross-zone detection, ensuring precise and reliable fire detection tailored to specific needs.
• Built-In Test (BIT): The detector supports both automatic and manual internal testing to maintain consistent performance and reliability.
• Heated Window: Equipped with a heated window, the 975MR operates effectively in harsh and variable weather conditions, preventing condensation and icing.
• Multiple Output Options: To maximize flexibility and compatibility with various systems, the detector offers diverse output options, including relay outputs, HART, and Modbus protocols.
• Alarm, Fault, and Auxiliary Relays: The 975MR includes three relays dedicated to alarm notifications, fault reporting, and auxiliary functions, providing comprehensive situational awareness.
• HART® Protocol Support: Supporting HART® protocol, the detector allows for user-friendly programming and data management through HART® or RS485 interfaces.
• High Reliability: With a mean time between failures (MTBF) of at least 150,000 hours, the Rosemount 975MR ensures long-term reliability and minimal maintenance requirements.
• SIL 2 Safety Certification: The detector is TÜV-certified for Safety Integrity Level 2 (SIL 2), meeting rigorous safety standards for industrial applications.

Comprehensive Protection with Advanced Technology

The Rosemount 975MR Multi-Spectrum Infrared Flame Detector represents a pinnacle of flame detection technology, combining advanced IR sensing with robust design to protect diverse industrial environments.

• Oil and Gas Refineries: Ideal for detecting fires in oil and gas processing areas, the 975MR safeguards critical equipment, storage tanks, and pipelines from fire hazards.
• Chemical Plants: Its precise detection of hydrocarbon fires makes it invaluable for chemical plants, providing protection against flammable liquids and gases.
• Power Generation Facilities: In power generation settings, the detector guards against fires involving turbines, transformers, and switchgear, ensuring operational continuity and safety.
• Aircraft Hangars: The long-range detection capabilities of the 975MR are perfect for protecting aircraft hangars from potential fuel and jet fires.
• Pulp and Paper Mills: The detector’s ability to identify fires from wood chips, paper dust, and flammable solvents makes it essential for pulp and paper mills.

Key Features and Benefits

• Multi-Spectrum Infrared Technology: Utilizes four IR sensors to differentiate flame signatures from background radiation, reducing false alarms and enhancing reliability.
• Long Detection Range: Capable of detecting fires up to 300 feet (90 meters) away, providing extensive coverage for large areas.
• High Immunity to False Alarms: Advanced signal processing minimizes false alarms caused by non-fire sources such as sunlight and welding.
• Harsh Weather Performance: A heated window ensures reliable operation in challenging environments by preventing condensation and icing.
• Variety of Output Options: Offers multiple output options, including relays, HART, and Modbus, for seamless integration with control systems.
• High Reliability: Designed for long-term use, boasting a minimum MTBF of 150,000 hours.
• Safety Certifications: Approved for Safety Integrity Level 2 (SIL2) applications, adhering to stringent safety requirements.

Conclusion

The Rosemount 975MR Multi-Spectrum Infrared Flame Detector offers a robust and dependable solution for flame detection across various hazardous industrial environments. Its advanced technology, extensive detection range, and high immunity to false alarms make it an indispensable asset for safeguarding personnel, property, and critical processes. By integrating this advanced flame detector into safety systems, industries can significantly enhance their fire detection and prevention capabilities, ensuring a safer and more secure operational environment.

FAQ

What makes the Rosemount 975MR Multi-Spectrum IR Flame Detector unique?

The Rosemount 975MR uses three infrared sensors to analyze multi-spectral signals, allowing it to detect hydrocarbon gas and liquid fires from significant distances while minimizing false alarms.

How fast can the Rosemount 975MR detect a fire?

The detector can identify a gasoline fire as small as 1 square foot from a distance of 215 feet in less than five seconds, ensuring rapid response in critical situations.

In which industries can the Rosemount 975MR be used?

It is suitable for various industries, including offshore oil and gas, automotive manufacturing, power generation, chemical plants, and petrochemical processing.

What are the key features of the Rosemount 975MR?

Key features include multi-spectrum design, selectable sensitivity, built-in test functions, heated window, multiple output options, alarm, fault, and auxiliary relays, HART® protocol support, and high reliability with SIL 2 safety certification.

How does the Rosemount 975MR handle harsh weather conditions?

The detector is equipped with a heated window to prevent condensation and icing, ensuring reliable operation in challenging environments.

What is the detection range of the Rosemount 975MR?

It can detect fires up to 300 feet away, providing extensive coverage for large areas and enhancing safety in various industrial settings.