Cảm biến đo độ bụi khói, độ mờ khói IMR ET101, ET102
The ET101/102 Opacity Monitor is a single-pass transmissometer consisting of visible light transmitter and receiver arrangement with digital data processing in a local display unit. The monitors can display data in opacity, extinction or dust density in mg/m3 or normalized dust density in mg/Nm3 . Using analog inputs from a process, the ET102 offers normalization of the opacity data from temperature, oxygen, pressure and water vapor.