Product Announcements:
Opacity Sensors and Instruments

Key Design Features

Forward Scatter
As particles travel through the laser beam, they scatter light in all directions. The strongest scattering is in the forward direction

NO Moving Parts In the Measurement Path
The optical path is fixed for maximum stability and reliability. The only moving part if the automatic calibration device

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Opacity is a measure of light attenuation, the fraction of light lost in crossing the stack. An opacity monitor is used to measure the optical characteristics of the stack gas. Read more...

The 4650-PM measures the scattered forward light from a laser source. The measurement volume in the sensor probe is positioned in a representative location within the stack. The scattered light response is directly proportional to dust concentration. Read more...