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Rosemount™ 975HR Multi-Spectrum Infrared Hydrogen Flame Detector
rosemount 975hr
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.
Rosemount™ 975HR Multi-Spectrum Infrared Hydrogen Flame Detector

Specs

Mounting
Stainless Steel 316L with electro polish finish
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)
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)
Tilt mount 2.2 lb (1.0 kg)

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

Education

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