IR Open Path Gas Detection

Infrared Hydrocarbon Gas Detector

IR hydrocarbon gas detector is an open path gas detection system that provides continuous monitoring of combustible hydrocarbon gas concentrations in the range of 0 to 5 LEL/m, over a distance of 15 to 650 feet (5 to 200 meters). Standard system outputs include 4-20mA, HART and RS-485 Modbus RTU serial communication. IR is capable of detecting most hydrocarbon gases and vapors including methane, propane, butane, propylene and others. No direct electrical connection between the two modules is required. In some applications, one IR detection system can provide protection equivalent to as many as eight point detectors.

ApplicationsFeatures and benefits
• Power stations and storage facilities
• Tank ships and other vessels
• Refineries, bulk terminals, tank farms
• LNG/LPG processing and storage
• Chemical, paint and fertilizer plants
• Power plants and gas turbines
• Transportation facilities

• Detects methane and most
common hydrocarbon
gases including ethane,
propane, butane and propylene
with equal sensitivity
• Detection range of up to 200m
• T90 less than 5 seconds
• Corrosion-resistant 316 stainless
steel enclosures
• Widest operating temperature
range: -40°F to +140°F, (-40°C to +60°C)
• Ultra-reliable xenon flash-lamp
• Tri-color status LED or 96 character
LCD for full graphical indication
w/ SSS-903
• 4-20mA analog, MODBUS
digital and relay outputs
• Convenient HART
communicator port
• Primary heater protects
optics from ice and secondary
heater protects the internal
• Able to operate even when
obscured by fog, rain, dust,
snow, or blowing sand.