Ametek Land 4500 MKIII, User Manual

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Model 4500 MkIII Opacity and Dust Monitor
User Guide
A
Introduction
A1 General Description
The Land Instruments International Model 4500 MkIII Continuous Opacity
Monitoring System (COMS) measures opacity by shining a light beam
through flue gases.
An internal microprocessor calculates dust density and other parameters.
The Model 4500 MkIII is designed for continuous operation in all weather
conditions. Maintenance requirements are minimal.
Transceiver Containing all of the major electronic and electro–optic
components.
Retro-Reflector Containing a corner cube reflector.
Air Purge System A continuous supply of purge air is essential to prevent
dust and corrosive gases from affecting the optical
system. Single and dual electric blowers or compressed-
air driven devices are available to suit individual site
requirements. Automatic fail–safe shutters can also be
fitted for temporary protection in the event of a purge air
failure.