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975MR Multi-Spectrum Infrared Flame Detector

Brand: Rosemount
The Rosemount 975MR multi-spectrum infrared flame detector is based on accurately analyzing the multi-spectral signals by utilizing three separate IR sensors.

The 975MR detects fuel and gas fires at long distances. For example, this product will detect a 1 ft² (0.1 m²) gasoline pan fire at 215 ft (65 m) in less than 5 seconds. The 975MR also provides the highest immunity to false alarms and enhanced overall coverage range.
Features
  • Multi spectrum design - for long distance detection and high false alarm immunity
  • Sensitivity selection - to ensure no zone crossover detection
  • Automatic and Manual Built-In-Test (BIT) - to assure continued reliable operation
  • 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
  • RS-485, Modbus compatible
  • High Reliability - MTBF - minimum 150,000 hours
  • Approved to Safety Integrity Level 2 (SIL 2 - TÜV)
  • User Programmable via HART® or RS-485
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The Rosemount 975MR multi-spectrum infrared flame detector is based on accurately analyzing the multi-spectral signals by utilizing three separate IR sensors.

The 975MR detects fuel and gas fires at long distances. For example, this product will detect a 1 ft² (0.1 m²) gasoline pan fire at 215 ft (65 m) in less than 5 seconds. The 975MR also provides the highest immunity to false alarms and enhanced overall coverage range.
Features
  • Multi spectrum design - for long distance detection and high false alarm immunity
  • Sensitivity selection - to ensure no zone crossover detection
  • Automatic and Manual Built-In-Test (BIT) - to assure continued reliable operation
  • 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
  • RS-485, Modbus compatible
  • High Reliability - MTBF - minimum 150,000 hours
  • Approved to Safety Integrity Level 2 (SIL 2 - TÜV)
  • User Programmable via HART® or RS-485

Specifications

Brand

Approvals & Certifications

  • ATEX: Ex II 2 GD, Ex d E IIC T5 Gb Ex d E IIC T4 Gb Ex Tb IIIC T96° C Db Ex Tb IIIC T106° C Db (-55° C ≤ Ta ≤ 75° C) (-55° C ≤ Ta ≤ 85° C)
  • CSA: Class I, Div. 1, Groups B, C, D Class II/III, Div. 1, Groups E, F, G
  • DNV Marine
  • FM/FMC: Class I, Div. 1, Groups B, C, D Class II/III, Div. 1, Groups E, F, G
  • IECEx

Approvals & Certifications

  • SIL Certification

Communication

  • HART
  • RS-485 Modbus

Enclosure Finish

  • Electro-Polished
  • Red Epoxy Enamel Finish (Not Available in FM Version)

Enclosure, Body Material

  • 316L Stainless Steel
  • Heavy Duty Copper-Free Aluminum (Less than 1 %)

Environmental Protection

  • IP66
  • IP67
  • NEMA 250 6P

Materials of Construction

  • Mounting: 316 Stainless Steel with Electro Polish Finish

Measuring Range

  • Detection Rang: 83 to 215 Ft (25.3 to 65.5 metres)

Operating Temperature

  • -55° to 75° C (-67° to 167° F)
  • -55° to 85° C (-67° to 185° F) Option

Operating Voltages

  • 24 Vdc Nominal (18-32 Vdc)

Storage Temperature

  • -55° to 85° C (-65° to 185° F)