Gas detection system

The Second Sight TC Remote Gas Detection System from General Monitors uses high resolution infrared imaging to add another layer of safety to the detection of combustible and toxic gases in petrochemical production, refining, storage, and distribution operations. Second Sight TC is a gross leak detector that can simultaneously detect up to four different gases. It features a wide field of view (30 standard) and a maximum detection range of 2 km for continuous monitoring of critical areas. Detection sensitivities are verified for quantities of hydrocarbon gas of approximately 2kg at 250m. Gas cloud imaging allows plants to be run at higher levels of safety, efficiency, and economy through the ability to supervise large areas, identify the gas species when leaks occur, and see gas dilution in the atmosphere in real time. In addition, the unit can be integrated into fire and gas panels through Ethernet and Modbus TCP/IP. Second Sight is designed for ease of use, with a human machine interface (HMI) that permits operators to see target gases in real time as they are detected by the IR camera. A video image displays overlaid levels of gas concentrations to provide a unique picture of gas dispersal. The reliable, low-maintenance Second Sight System features a long wave infrared (LWIR) camera with a spectral range of 8-14 µm (IR) at a spatial resolution of 384 x 272 pixels. The camera has a standard maximum range of 3281 ft (1000 m) and an optional range of up to 6562 ft (2000 m). It can detect methane at 0.1 LEL-m, propylene at 0.1 LEL-m, butane at 0.3 LEL-m, and propane at 0.5 LEL-m. It operates at a temperature range of 14° to 131°F (-10° to 55°C) and humidity range of 0-95% RH, non-condensing.