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Open Path Gas Detector – IR5500

Open Path Gas Detector
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Open Path Gas Detector – IR5500

Open Path Gas Detector – General Monitors IR5500 Intelligent Sensor

The Model IR5500 is an Open Path Gas Detector that provides continuous monitoring of methane and propane gas concentrations.

The system consists of an IR source and receiver which continuously monitors for methane in both the 0 to 5000 ppm•meter and 0 to 5 LEL•meter range. A 0 to 2000 ppm•meter and 0 to 1 LEL•meter range is also available for monitoring propane. The IR5500 provides two 4 to 20 mA analog signals proportional to each of the above ranges, in addition to a digital display and relay contacts.


  • Sensitive to both small (ppm.meter) and large (LEL.meter) gas leaks using dual detection ranges
  • Ideal for use in harsh environments
  • Single detection beam improves accuracy and reduces drift
  • Continuous self-check for fail-to-safe operation
  • Multiple communication outputs (HART, Modbus, AMS support) provide complete status and control capability in the control room
  • Unitized display makes it easy to operate
  • Automatic gain control compensates for dirty optics, rain, and fog


  • Compressor stations
  • Drilling rigs and platforms
  • Fence line monitoring
  • Gas turbines
  • LNG / LPG processing and storage facilities
  • Petrochemical plants
  • Tank farms
  • Wastewater treatment

This system is compatible with MSA GasGARD XL, MC600 and HazardWatch detection controllers