Optical opacity / dust monitor 2nd generation
The Durag D-R 290 has been used successfully for more than 15 years in various applications as reliable and low maintenance opacity / dust monitor. Now the new generation is available.
The D-R 290 is a certified optical transmission monitor to measure the opacity or dust concentration in dry flue gas.
The D-R 290 operates using the double-pass method according to the auto-collimation principle. The light beam traverses the measuring path twice. The attenuation of the light beam by the dust content in the measuring section is measured and evaluated.
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