Rosemount Analytical 975UF Flame Detector

• Detection Technology: Multi-spectrum design for long-distance detection of hydrocarbons and hydrogen flames.
• Sensitivity Ranges: 4 sensitivity ranges to ensure no zone crossover detection.
• Sample Detection Ranges: (at highest sensitivity setting for 1 ft² pan fire)
  • Gasoline: 215 feet
  • Hydrogen: 125 feet
  • LPG: 150 feet
• Field of View:
  • For Gasoline: Horizontal 67°, Vertical 70°
  • For Hydrogen: Horizontal 80°, Vertical 80°
• Response Time: Typically 5 seconds.
• Built-In Test: Automatic and manual tests to ensure continued reliable operation.
• Heated Optics: Prevents condensation and icing on the window for reliable operation in harsh weather conditions.
• User Programmable: Configurable via HART® or RS-485.

Technical Specifications:

• Communication Protocol: Optional HART™ communications on the 0-20 mA analog current (FSK) for maintenance, configuration changes, and asset management. RS-485 Modbus compatible communication link for 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.
• Dimensions:
  • Flame Detector: 4″ x 4.6″ x 6.18″ (101.6 x 117 x 157 mm).
• Weight:
  • Stainless Steel 316L: 6.3 lb (2.9 kg).
  • 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)