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.