Rosemount Analytical 975UR Flame Detector

product id: 103725

Category: Flame Detectors

Manufacturer: Rosemount Analytical

InstruHub is a leading supplier and reseller of Rosemount Analytical Flame Detectors in DRC, and we ship to all major cities such as Kinshasa


Features

  • Integrated UV/IR dual-sensor
  • Detects hydrocarbon-based fuel and gas fires
  • Response time: 3 seconds, typically
  • Sample detection ranges (at highest sensitivity setting for 1 ft2 pan fire):
    • Gasoline: 66 feet
    • Diesel fuel: 50 feet
    • Methane: 39 feet
  • Field of view: Horizontal 100˚; Vertical 95˚
  • Solar blind to help eliminate false alarms
  • Automatic and manual Built-In-Test to assure continued reliable operation
  • Heated optics eliminates condensation and icing on the window for operation in harsh weather
  • Multiple output options for maximum flexibility and compatibility
    • Relays (3) for alarm, fault and auxiliary
    • 0–20 mA (stepped)
    • HART® Protocol for maintenance and asset management
    • RS-485, Modbus Compatible
  • User programmable via HART® or RS-485
  • Spectral response:
    • UV: 0.185–0.260 μm
    • IR: 4.4–4.6 μm
  • Meets MIL-STD-810C for Humidity, Salt & Fog, Vibration, Mechanical Shock, High Temp, Low Temp
  • Approved to Safety Integrity Level 2 (SIL 2 - TÜV)
  • IP66 and IP67 rated per EN 60529, NEMA 250 6P
  • Hazardous area approvals: ATEX and IECEx, FM and CSA

The Rosemount 975UR flame detector uses an integrated UV/IR dual-sensor to detect hydrocarbon-based fuel and gas fires. The 975UR senses radiant energy in the short wave section of both the ultraviolet and infrared portions of the electromagnetic spectrum. 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.

The 975UR has a wide coverage area and can detect a gasoline pan fire at 66 feet. Response time is typically 3 seconds. The 975UR can perform in the harshest environmental conditions as either as a stand-alone unit directly connected to an alarm system or an automatic fire extinguishing system, or as part of a more complex system where many detectors and other devices are integrated through a common control unit. Performance can be easily adapted by changing the detector's configuration parameters. Adjusting these parameters, as well and performing other maintenance and monitoring tasks, is possible by means of RS-485-based Modbus communication or HART communication (in models with 0-20 mA output).

Built to be extremely durable and weather-resistant, the Rosemount Analytical 975UR flame detector features heated windows for operation in harsh weather conditions, such as snow, ice, or condensation; broad operating temperature ranges from -67°F to 185°F (-55°C to 85°C); and multiple output options for maximum flexibility and compatibility.

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