Specifications include, but are not limited to: Hydrocarbon Gas Imaging Infrared System (Camera) - 3.1.1.1 The camera must operate in the mid-wave spectrum (3 to 5µm) Long-wave systems (8 to 12µm) are not acceptable due to the associated problems with detecting desired hydrocarbon gases. 3.1.1.2 The camera detector/filter must be cooled. Cameras using “uncooled” detectors are not acceptable due to decreased sensitivity. 3.1.1.3 The camera must be capable of detecting, at a minimum, the following hydrocarbon gases: • Methane • Ethane • Propane • Butane; 3.1.1.4 The spectral range of infrared radiation measured by the camera must overlap with a major absorption peak for the chemical target of interest, meaning the camera must be sensitive with a response factor of at least 0.25 when compared to the response factor of propane for the desired detectable gaseous emissions composition. 3.1.1.5 The camera must be capable of detecting (or producing a detectable image of) methane emissions of 17 grams per hour (g/hr) and butane emissions of 18.5 g/hr at a viewing distance of 2 meters and a delta-T of 5 °Celsius (C) in an environment of calm wind conditions around 1 meter per second (m/s) or less. 3.1.1.6 The camera must be powered by battery with a minimum run time of 3 hours per battery and include a minimum of 3 field replaceable batteries. 3.1.1.7 Detector resolution must be at least 320 x 240 pixels. 3.1.1.8 The camera 30 mm lens must have a field of view of 18.5o x 13.6o with a minimum focus distance of 1.0 feet and the ability to accept other lenses. 3.1.1.9 Camera must include an integrated color digital camera. 3.1.1.10 Camera must be able to store still infrared and visual images. 3.1.1.11 The camera must have the capability to display and record the date, time, and global positioning system (GPS) coordinates in real-time. 3.1.1.12 The camera must have manual focus capabilities...
