The Model 850 Investigator¡¯s Gas Detector incorporates advanced signal processing techniques in combination
The Model 850 Investigator¡¯s Gas Detector incorporates advanced signal processing techniques in combination with a ruggedly constructed detector to bring you the most advanced survey tool available. This unit will detect the presence of hydrocarbons that may be at the fire scene and is equally effective as general purpose gas detector. It is capable of detecting gas leaks of less than 1cu. ft. per year or gas concentration of less than 50 parts per million. The Model 850 is simple to operate: simply pull out retractile sensor probe, allow several minutes for warm up, then scan area of concern holding sensor approximately 1/2" from suspect material while observing meter. If a hydrocarbon is present, a deflection of the meter will occur, followed by a series of beep tones in synchronism with two indicator lights (red LED¡¯s). The more aerosol born particles that exist, the more volatile the hydrocarbon is and the faster the beep will become. The Model 850 is equipped with a high/low range switch that permits detection of extremely small amount of hydrocarbon. Because the 850 has a retractile probe sensor, it can be easily used while walking around an area of concern. This feature makes the 850 useful as a survey tool for detecting leaking underground storage tanks (LUST) or gasoline leaks that have seeped into sewer lines. The 850 is equally effective for detecting methane out gassing, inspecting pipelines and a host of other applications.