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Data Acquisition and Handling System (DAHS)

Many Governments and local Authorities around the world require industries to monitor and report the levels of pollutants contained in emissions from industrial operations as well as recycling and incineration facilities. To abide by these regulations, Data Acquisition and Handling Systems (DAHS) are used to accumulate, analyse, and report on what can be extremely large volumes of data.

What is a Data Acquisition and Handling System (DAHS)?

A Data Acquisition and Handling system (sometimes abbreviated to DAS or DAQ) is a system which

  • converts signals from Continuous Emissions Monitoring Systems (CEMS), and
  • converts these signals into values which can then be stored digitally
  • the digital data contains the measured levels of substances or pollutants which were identified in the CEM system

The DAHS then uses the digital data, analyses, and checks measured levels of substances recorded against limits for those substances and produces regular reports and sometimes warnings/alerts to the appropriate personnel or transmitted to additional systems.

What are the components of a Data Acquisition System?

  • DAQ hardware
  • Sensors
  • Signal conditioning hardware
  • Computer running DAHS / DAQ Software / DAS Software

What pollutants or substances can be handled within a Data Acquisition System?

Almost anything:

  • Chemicals
  • Pollutants
  • Fuel flows
  • Air flows
  • Opacity
  • and many more

For further information see Continuous emissions monitoring systems (CEMS) .

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