Laser Backscattering Principle
Range: 0~100mg/m³. 0~1000mg/m³.
Output: 4-20mA. 0-5V. RS485
Accuracy: ±1%FS. ±2%FS
Features
• On-line continuous monitonng 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.
Introduction
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. This dust concentration on-line monitor is used to fix the particle concentration measurement in the powder gas emission of the pollution source. The instrument is composed of electrical system. optical system. structural system. in order to prevent the lens from dust pollution, supporting the use of blow-off system, the use of continuous flow of air to block dust erosion lens, to ensure that the optical energy signal collected by the instrument is true and reliable. This instrument can be used for cement. thermal power. steel. metallurgy. refining, aluminum. petrochemical, paper, glass industn,t and other industries fixed pollution source powder emissions in particulate matter concentration measurement