Optical gas detector

摘要: PURPOSE: To obtain an optical gas detector for small section which can detect at a remote position. CONSTITUTION: An infrared transmitting is disposed on one side of case 1 while receiving oppositely thereto the other and multiple vents 2 are made through wall between them thus constituting sensor 14. The connected fibers 6a, 6b with body 15 remotely therefrom. With such structure, ideal explosion-proof performance realized to eliminate need work, cost reduced significantly by employing convenient laying method fiber. Since comprises no aging component, e.g. sensor, has simple constitution, stabilized be sustained long term so as installation environment clean in some degee.