Opsis AR500 series

Ambient air monitors

The Opsis AR500 analyser is the central unit of an Opsis ambient air quality monitoring system. It utilises differential optical absorption spectroscopy (DOAS) in accordance with Beer Lambert’s Law to measure a wide range of gaseous parameters in UV and IR wavelengths. The analyser receives light from one or more light paths via a fibre optic cable and provides data for presentation through Opsis software.

It features a high-performance spectrometer where received light is converted into digital signals and analysed by the built-in computer. The computer software includes the spectrographic ‘fingerprints’ of a number of user-specified compounds. The system detects and measures these compounds through the depletions they cause in the spectrum of received light. It then refines results by calculating margins of error for each value and by noting the proportion of transmitted light received by the analyser. This allows both data and system verification.

Acoem Australasia (Ecotech Pty Ltd) is the official representative and distributor of Opsis products in Australia and New Zealand.

Features

Fully modular
Can be updated or expanded at any time and is prepared for the addition of automatic calibration equipment. Updating to monitor additional gases usually involves a simple software upgrade
International approvals
Approved by MCERTS, TÜV, U.S. EPA, and Chinese EPA
Accuracy & low drift
Gas calibration required only once a year
Low maintenance requirement
No pumps, auto alignment, non-contact with ambient or process gas streams

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Options

  • AR501 with one UV detector
  • AR502 with two UV detectors
  • AR503 with three UV detectors
  • AR510 with one IR detector
  • AR520 with one IR detector and one UV detector
  • AR550 with one IR detector

Applications

The Opsis AR500 analyser utilises Differential Optical Absorption Spectroscopy (DOAS) in accordance with Beer Lambert’s Law to measure a wide range of gaseous parameters in the UV and IR wavelength.

Continuous Emissions Monitoring System

Opsis ambient air quality monitoring systems utilise Differential Optical Absorption Spectroscopy (DOAS) in accordance with Beer Lambert’s Law to measure a wide range of gaseous parameters in the UV and IR wavelength. These analysers utilise differential optical absorption spectroscopy (DOAS) in accordance with Beer Lambert’s Law to measure a wide range of gaseous parameters in the UV and IR wavelength.

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