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.
Features and Benefits
On-line continuous monitoring for various emission sources.
Combined techniques: adaptive stabilization, dynamic adaptive phase-locked amplification.
Very low zero drift, patented technology of on-line calibration.
Compact, easy to install, anti-lightning, high adaptability, low cost and less maintenance.
|Principle||Laser Back Scattered|
|Installation type||In situ|
|Measurement Range||0~200, 0~1000 mg/m3|
|Zero Drift||±2% F.S./d|
|Span Drift||≤ ±2% F.S./d|
|Response Time (T90)||< 10|