SPECTRONUS analyzer
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Trace Greenhouse Gas and Isotope Analyser Simultaneous and real-time measurements of N2O, CH4, CO, CO2 (including 513C and 518O) L'feivusln "■ iv .

Choosing the right equipment to suit your application can sometimes be overwhelming with so many different options in the market. There are, however, differences to look out for, that can help guide you to make the right decision. The multi-species capability of the Spectronus™ aids holistic greenhouse gas studies which probe the whole picture. Simultaneous measurement of all gases in the same air sample allows correlations and relationships to be identified between the greenhouse gases in a way impossible with multiple analysers. Isotopes offer the best method to understanding sinks and...

C ON S ID E R C OS T S AV IN GS ! When measuring all greenhouse gases, the Spectronus™ is the most cost effective system on the market. It also requires very low maintenance. Ongoing costs are kept to a minimum. The ECOTECH Spectronus™ is an FTIR spectrometer coupled to a multi-pass (White) cell and a gas sampling manifold. It is principally intended for in situ sampling and analysis of air. The analyser is fully automated and provides real-time concentration or mole fraction measurements of target gases including N2O, CH4, CO, CO2, including (δ13C and δ18O). Typical residual of the...

Developed for Windows 7, data visualisation is easy with rolling graphs which can zoom in and out of either current or legacy data. The stability of the system allows the precision to meet the GAW standards with at most monthly calibration. This stability is demonstrated by sampling target gas daily over 10 months and the result is shown in Figure 4. Target gas measurements can also be fully automated through one of the four standard inlets or an optional Vici-Valco multiport valve or auxiliary manifold, instead of the sampling line. Field and lab campaigns continuously collect data and so...

Land surface emissions are very important to measure, however, they are inhomogeneous and multiple measurements need to be performed to reach statistical confidence. A fully automated and remotely accessible system such as the Spectronus™ combined with a chamber system can help in such an application by optimising the number of samples collected. It also ensures a repeatable sampling protocol, crucial in such measurements. Integrate the Spectronus™ seamlessly with soil chambers for precise and reliable flux measurements. Remotely control valve manifolds and chambers via the Spectronus™ to...

The stability, precision and robustness of the system allows for measurement of CO2 concentrations in remote locations and to track down plumes from ships, industries or bushfires. As an example, the Spectronus™ aided University of Wollongong scientists on-board the SS Southern Surveyor to chase CO2 and other trace gas plumes from different sources as they circumnavigate Australia (Figure 7). TALL TO W E R M EA S U R EME N T S Tall tower measurements help to broaden the knowledge on regional background pollution by measuring above the surface layer. Vertical profiles of trace gases and...

One of the most important uses of δ13C measurements is in determining the strength of the different biosphere sinks. Since about half of the carbon dioxide we add to the atmosphere each year is absorbed into various sinks, it is important for future predictions to know where exactly that carbon dioxide goes. Figure 9. Trace gas variations in limestone caves. (Courtesy of Stephen Parkes, University of Wollongong, “The application of FTIR spectroscopy measuring stable isotopes of liquid water and water vapour: application to understanding speleothem growth”). Figure 9 shows a Spectronus™...

SPECTRONUS™ CUSTOMERS: • University of Wollongong (AUS) • NIWA (NZ) • LSCE (FRA) • University of Melbourne (AUS) • ANSTO (AUS) • University of Heidelberg (GER) • Korean Standards Institute (KOR) • University of Bremen (GER) • Max Planck Institute (GER) • Chinese Meteorological Administration (PRC) • Finnish Meteorological Institute (FIN) • Lawrence Berkeley National Laboratory (USA) • University of Sydney (AUS) • Landcare Research - Manaaki Whenua (NZ)

Spectronus™ Trace Gas & Isotope System Figure 11. FTIR Spectrometer and measurement cell used in the Spectronus™. δD in water vapour / ‰ δ18O in water vapour / ‰ • Accuracy: 1-5% without reference to any calibration gases. Accuracy is comparable to precision if measurements are referenced to standard calibration gases (NIST, CMDL, GASLAB, etc.). • Simultaneous measurement of all species, <1 – 60 min time averages (trade precision for measurement

Precision – Allan Variance The Spectronus™ provides simultaneous measurements of multiple greenhouse gas species with high repeatability and excellent reproducibility without the need for frequent gas calibrations. The analyser consists of separate subsystems under the control of a single computer program. The sample handling subsystem automatically carries out all sample handling, inlet sample stream selection, cell evacuation and flushing procedures. It includes a multichannel digital IO switching capability for switching solenoid valves, and an 8 channel analogue/digital converter for...

Figure 12. Allan deviation for CO, CH4, CO2, N2O and del13C. Griffith, D. W. T., Deutscher, N. M., Caldow, C. G. R., Kettlewell, G., Riggenbach, M., and Hammer, S.: A Fourier transform infrared trace gas analyser for atmospheric applications, Atmos. Meas. Tech., 5, 24812498, 10.5194/amtd-5-3717-2012, 2012. Figure 13. Spectronus™ plumbing diagram.

SPARE PARTS SYSTEM OPTIONS • Voltage 230V 50/60 Hz or 110V 60Hz • Manifolds: • Lung manifold for REA • Multiple port selectable manifold for soil flux chamber measurements • Manifold for tall tower measurements • Vici-Valco multiport valves are software supported • Fore-pump / inlet pump for measurements at above ambient pressure • Room temperature sensor • Extra amphenol XLR connectors for additional analog sensors or digital outputs • Monitor, keyboard and mouse • Support: • Commissioning and training • Air conditioned weatherproof enclosure • Extended warranty packages. ECOTECH Pty Ltd...