LaserDust

LaserDust™ Medium Path (MP), Long Path (LP), and Extra Long Path (XLP) monitors are compact optical monitors for continuous in-situ measurement of dust concentration or opacity.

The monitors are designed for measurement through pipes, stacks, and ducts with typical path lengths from 0.5 to 10 m.
LaserDust™ monitors use a transmitter/receiver configuration to measure dust concentration along the optical line of sight. Our non-contact approach is superior to point-type dust meters.

Thanks to innovative laser technology, LaserDust™ combines two measurement principles in a single instrument:

• – At low dust levels, it works with forward scattered light technology:
  Incident laser light is scattered by dust particles and collected on a solid-state sensor for dust quantification. This highly sensitive mode allows detection limits of < <0.5 mg/Nm3 and is not affected by dust settling on the windows.
• – At high dust levels, LaserDust™ measures transmittance or opacity:
  The absorption of light by dust particles is captured by a second sensor.