DCEM 2100 Dual Pass Opacity/Dust Monitor


  • % opacity or dust density in mg/Nm3
  • TUV & MCERT Approved
  • Dual-pass, open-path transmissometer
  • Integral auto zero and span check
  • Full contamination check on all active optical surfaces
  • Dynamic misalignment check
  • Integral high efficiency air curtains for maximum uninterrupted service
The DCEM2100 provides a continuous measurement of opacity or dust concentration in flue gases by continuously measuring the transmissivity of visible light across a process duct or stack. Its dual-pass optical arrangement is based on twin transmissometers measuring in opposing directions through the same section of the gas stream, providing not only an accurate average of the dust loading, but also providing a unique dynamic assessment of any misalignment errors due to stack movement.

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