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Rosemount™ 975MR Multi-Spectrum Infrared Flame Detector
Northeast Controls is pleased to be the authorized Emerson representative to sell this product line for Municipal Water and Wastewater applications, and as part of an overall Integrated Solution for all applications and industries.
rosemount 5900s
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 (0.1m2) 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.
Rosemount™ 975MR Multi-Spectrum Infrared Flame Detector

Specs

Ambient Temperature
Operating: -67 °F to +167 °F (-55 °C to +75 °C)
Option: -67 °F to +185 °F (-55 °C to +85 °C)
Storage: -67 °F to +185 °F (-55 °C to +85 °C)
Enclosure Rating
Stainless Steel 316L with electro polish finish
Heavy duty copper free aluminum (less than 1 %), red epoxy enamel finish (not available in FM version)
Mounting
Stainless Steel 316L with electro polish finish
Dimensions
Detector 4"x 4.6"x 6.18"(101.6 x 117 x 157 mm)
Weight
Detector (stainless steel 316L) 6.1 lb (2.8 kg)
Detector (aluminum) 2.8 lb (1.3 kg)
Tilt mount 2.2 lb (1.0 kg)
Certifications/Approvals
ATEX and IECEx:
  • II 2 G D
  • Ex db eb op is IIC T4 Gb
  • Ex tb op is IIIC T96 °C Db
  • (Ta -55 °C to +85 °C)
or
  • Ex 2 G D
  • Ex db eb op is IIC T4 Gb
  • Ex tb op is IIIC T96 °C Db
  • (Ta -55 °C to +75 °C)
FM/FMC/CSA:
  • Class I Div. 1, Groups B, C, & D
  • Class II/III Div.1, Groups E, F, & G
Performance:
  • EN 54-10 (VdS)
  • FM 3260
Reliability:
  • IEC 61508 - SIL 2 (TÜV)
Marine:
  • MED "wheelmark" approval
  • (DNV)
  • "Type" approval (DNV)

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)
  • 5-Year Warranty
  • User Programmable via HART® or RS-485