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975HR Multi-Spectrum Infrared Hydrogen Flame Detector

Brand: Rosemount
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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 the highest immunity to false alarms.

The 975HR is the most durable and weather resistant hydrogen flame detector on the market. Its features include a heated window to eliminate condensation and icing, HART®, lower power requirements and a compact lighter design.
Features
  • Multi spectrum design for detection of hydrocarbons and hydrogen flames with 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 (SIL2 – TÜV)
  • User Programmable via HART® or RS-485
  • 5-Year Warranty
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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 the highest immunity to false alarms.

The 975HR is the most durable and weather resistant hydrogen flame detector on the market. Its features include a heated window to eliminate condensation and icing, HART®, lower power requirements and a compact lighter design.
Features
  • Multi spectrum design for detection of hydrocarbons and hydrogen flames with 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 (SIL2 – TÜV)
  • User Programmable via HART® or RS-485
  • 5-Year Warranty
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Specifications

Brand

Approvals & Certifications

  • SIL Certification

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
  • FM/FMC: Class I, Div. 1, Groups B, C, D Class II/III, Div. 1, Groups E, F, G
  • IECEx

Communication

  • HART
  • RS-485 Modbus

Enclosure Finish

  • Electro-Polished

Enclosure, Body Material

  • 316L Stainless Steel

Environmental Protection

  • IP66
  • IP67
  • NEMA 250 6P

Materials of Construction

  • Mounting: 316 Stainless Steel with Electro Polish Finish

Measuring Range

  • Detection Rang: 2 to 215 Ft (0.6 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)
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