Opacity and Dust Monitoring
LAND has a range of opacity and dust monitors, which are the most technologically
advanced, using patented dual LED technology to give high accuracy and reliability.

  • Model 4500 MkII
The Model 4500 MkII is designed specifically for US EPA environmental compliance
monitoring applications.

The stainless steel Termination box has a single, pre-terminated cable for connection to
the instrument itself. All customer connections are made using simple terminal rails
inside the box.

  • High reliability, low maintenance – no continuously moving parts
  • Patented measurement technology – Unique “no drift” zero check
  • Automatic in-situ zero and span checking – Built-in calibration audit jig
  • Range of instrument configurations – outputs in opacity, extinction, or dust density
  • Designed to meet exact compliance requirements – Simulated clear stack zero device
  • Easily integrated into plant control system
  • Fully user configurable – integral control panel for set-up, control and diagnostics


  • Model 4200
The Model 4200 is a compact design opacity/dust monitor. It is aimed at cost sensitive
and multi-process single stack applications.

The patented dual LED technology of the Model 4200 has proven itself worldwide as
stable, reliable and trouble free. The lightweight and compact design makes it ideal for a
wide range of applications. Simple installation, low maintenance and ease or operation
ensures immediate results – vital where performance, cost and compliance benefits are
of high priority.

  • Model 4500 Premier
The premier has very low range measurement capability (0 to 10% opacity) specifically
designed to meet US EPA CPS-001. The monitor is ideal for low level compliance
applications.

The model 4500 premier uses a highly homogeneous, advanced LED light source to
reduce the effect of misalignment on the measured opacity. Together with the patented
“Flood LED”, it achieves the highest levels of stability and accuracy.

  • High reliability, low maintenance
  • Automatic in-situ zero and span checking
  • Outputs in opacity, extinction, or dust density
  • Simulated clear stack zero device
Model 4500 Premier
Model 4200
Model 4500 MkII
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Copyright© 2005 Heather Brown. All rights reserved.
Last Updated 05-03-2010
Opacity and Dust Monitoring
Check out the brochure!
Check out the brochure!
Check out the brochure!