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Rosemount™ 975HR Multi-Spectrum Infrared Hydrogen Flame Detector
The Rosemount 975HR Multi-Spectrum Infrared Hydrogen Flame Detector is specifically designed for the detection of hydrocarbon and hydrogen flames.
It detects hydrocarbon-based fuel and gas fires at long distances with a high immunity to false alarms. The Rosemount 975HR Flame Detector is a durable and weather resistant hydrogen flame detector. This flame detector includes a heated window to eliminate condensation and icing, HART™, lower power requirements and a compact lighter design.
Rosemount™ 975HR Multi-Spectrum Infrared Hydrogen 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 & 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
Flame Detector 4"x 4.6"x 6.18"(101.6 x 117 x 157 mm)
Weight
Flame Detector (stainless steel 316L) 6.3 lb (2.9 kg)
Flame Detector (aluminum) 2.8 lb (1.3 kg)
Tilt mount 2.5 lb (1.1 kg)
Certifications/Approvals
strong>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°Cto+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 detection of hydrocarbons and hydrogen flames with high false alarm immunity
  • Six sensitivity levels, adapting to any application
  • High speed response time under 20 msec
  • Solar blind to help prevent false alarms
  • Adjustable infrared 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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