PICO PDMS-001 Dust Monitoring Laser

PDMS-100 is an on-line dust monitoring device using the mainstream technology of laser back-scattered light principle. PDMS-100 is mainly used for continuous monitoring of various sources emissions of particulate matter concentrations. It can be either equipped with CEMS, or connected with dust monitoring network by a shared set of data acquisition and processing background. It is available for the monitoring and control of soot emission, flue gas DeSOx and removal of dust for power generation Boilers, industrial furnaces, industrial boilers in the thermal power, iron and steel metallurgy, petrochemical, chemical, cement production, ceramics, waste incineration, etc.

System Principle Diagram :

Optical parts include laser light source, circuit and control section, photoelectric sensors and scattering light receiver. The laser beam (650 nm) comes across the detection area and produces scattered light after effect with dust particles. The back-scattered light crosses the lens converges into photosensitive detector. Analyzer circuit and control section converts light signal into signal output which is proportional to the dust concentration, and obtains dust particles emission concentration of pollution.

Features :

• The laser back scattering principle is adopted. Avoid beam weaving caused by uneven refractive index which caused by mechanical vibration and uneven flue gas temperature
• The detector is single-side installed. No alignment of light path is required
• Field display is provided; Dust concentration can be read on site
• After modulation of the laser beam, the anti-jamming capacity of the system gets greatly improved
• The “tool-free” field installation concept is adopted for the detector to reduce complexity of field installation
• The industrial standard current output 4-20mA is adopted to ensure easy communication
• The overall power consumption of the device is only approximately 3w.
• The device optical distance should be no less than 500mm (not including the wall thickness and flange length). The user can adjust the optical distance with approval and guidance of maintenance personnel