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Rosemount-975UR Ultraviolet Infrared Flame Detector

Rosemount™ 975UR Ultraviolet Infrared Flame Detector

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Product Description

The Rosemount 975UR UV/IR Flame Detector senses radiant energy in the short wave section of both the ultraviolet and infrared portions of the electromagnetic spectrum and can detect hydrocarbon-based fuel and gas fires. The signals from both sensors are analyzed for frequency, intensity and duration. Simultaneous detection of radiant energy in both the UV and IR sensors triggers an alarm signal. The UV sensor incorporates a special logic circuit that helps prevent false alarms caused by solar radiation.

Dane techniczne

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)

 

Charakterystyka

  • UV/IR Dual-Sensor
  • Three sensitivity levels, adapting to any application
  • High speed response time under 20 msec (Exp./1 sec)
  • Solar blind to help prevent false alarms
  • Automatic and manual non-radioactive UV 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®

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