Dust Monitoring System

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  • 12 March, 2020

Dust Monitoring System

LSS2004 Laser Backscattering Monitor


Measuring Principle

The laser beam passes across the stack or duct work and is reflected

by the dust particles, the reflected light is then detected by the

photoelectric sensor. The intensity of reflected laser signal is

proportional to dust concentration, by which the resulting signal is

analyzed to yield dust concentration.


  • Online continuous monitoring for various emission sources
  • Combined techniques: adaptive stabilization, dynamic adaptive phase-lock amplification
  • Very low zero drift, patented technology of online calibration
  • Compact, easy to install, anti-lightning, high adaptability, low cost and less maintenance




Item Index
Principle Laser back scattered
Component dust
Measurement range 0~200~1000mg/m3
Protection grade IP66
Response time <10s
Span drift <(±2)%F.S./24h
Zero drift <(±2)%F.S./24h
Outputs Analog, RS485
Power Supply DC24V/0.3A


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