Casella CEL Microdust Pro real time dust monitor - Manual (Page 4)

MicroDust Pro Aerosol Monitoring System
4 Casella CEL
1 Introduction
The MicroDust Pro instrument measures the levels of particulate matter such
as dust, smoke, fumes, pollen and other aerosols from combustion, materials
processing, manufacturing, energy generation, vehicle engine emissions, and
construction. Pollutants of this type reduce visibility, spread contamination and
can cause illness and low worker productivity from the inhalation of toxic
substances. Many of them are also recognised as contributory factors to many
chronic and acute medical conditions, including asthma, bronchitis, and lung
cancer.
The MicroDust Pro instrument is not like traditional gravimetric methods of
dust measurement, which require a significant sampling period and are not
suited to the real-time evaluation of trends in concentration levels. The
MicroDust Pro is an ideal survey instrument for the assessment of real-time
particulate concentration in mg/m³. It is totally portable, and has a detachable
probe that allows operation in relatively inaccessible areas, making it suitable
both for fixed site and for general survey applications.
The MicroDust Pro uses a proven forward light scattering principle to make
accurate and repeatable measurements of dust concentration. It provides the
following features as standard:
• Graphical representation of concentration trends
• Internal data logging
• A simple and clear user interface
• Digital calibration suitable for any dust sampling scenario
The Casella Insight data management software application supplied as an
option allows you to download and view data from the MicroDust Pro
instrument. It also offers a real-time display of particulate concentration levels
measured by the instrument. Refer to the on-line help system installed with the
Casella Insight data management software for full instructions to use this
software application.
Principle of operation
The MicroDust Pro instrument uses a modulated beam of infra-red light
projected into a measurement chamber.