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Rosemount™ 975MR Multi-Spectrum Infrared Flame Detector
rosemount 5900s
The Rosemount 975MR multi-spectrum infrared flame detector is based on accurately analyzing the multi-spectral signals by utilizing four 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 300 ft (91 m). The 975MR also provides the highest immunity to false alarms and enhanced overall coverage range.
Rosemount™ 975MR Multi-Spectrum Infrared Flame Detector

Specs

Communication Protocol
Optional HART™ communications on the 0-20 mA analog current (FSK) - used for maintenance, configuration changes and asset management, available in mA source output wiring options. RS-485 Modbus compatible communication link that can be used in computer controlled installations
Ambient Temperature
Operating: -76 °F to +185 °F (-60 °C to +85 °C)
Storage: -76 °F to +185 °F (-60 °C to +85 °C)
Enclosure Rating
Stainless Steel 316L with electro polish finish
Heavy duty copper free aluminum (less than 1%), polyurethane painted
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) 6.3 lb (2.9 kg)
Detector (aluminum) 2.8 lb (1.3 kg)
Tilt mount 2.5 lb (1.1 kg)
Certifications/Approvals

ATEX and IECEx:

  • Ex II 2 G D
  • Ex db eb op is IIC T4 Gb
  • Ex tb op is IIIC T110 °C Db
  • (Ta -50°C to +85°C) IP66/68

FM/FMC

  • Class I, Division 1, Groups B, C, and D, T4A
  • Class II, III, Division 1, Groups E, F, and G, T4A
  • Class I, Division 2, Groups A, B, C, and D, T4
  • Ta = -50°C to +85°C
  • Type 6P, IP66/68 2 m for 45 minutes

CSA/US:

  • Class I, Division 1, Groups B, C, and D, T4
  • Class II, III, Division 1, Groups E, F, and G, T4
  • Class I, Division 2, Groups A, B, C, and D, T4
  • Ta = -50 °C to +85 °C
  • Type 6P; IP 66/68 2 m for 45 minutes

TR CU (EAC):

  • 1 Ex db eb op is IIC T4 Gb X
  • Ex tb op is IIIC T110°C Db X
  • (–55°C Ta +85°C)

Performance:

  • EN 54-10 (VdS)
  • FM 3260

Reliability:

  • Designed to meet IEC 61508 - SIL 3 (TÜV)

Marine:

  • MED "Wheelmark" (DNV)

 

Features

  • Multi spectrum design for long distance detection
  • Six sensitivity levels to ensure no zone crossover detection
  • High speed response under 50 msec (Exp./1 sec)
  • Solar blind
  • 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
  • High Reliability - MTBF - minimum 150,000 hours
  • 5-Year Warranty
  • User programmable via HART® 7 or RS-485 Modbus®

Education

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