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Instrumentation


For mixtures of two gases, SoS is a combination of the two main gas components, so there is a simple calculation to derive the proportion of each component. For example, the SoS for pure carbon dioxide is 259 m/s, and for methane it is 430 m/s. So, if the SoS measurement is 401 m/s, the gas composition is 83 per cent methane and 17 per cent dioxide.


Monitoring oxygen The first product to be launched under the new Servomex Gas Detection brand, the OxyDetect is a safe area monitor which utilises advanced non-depleting paramagnetic technology to accurately monitor oxygen levels in containers - without the sensor deterioration that affects traditional electrochemical sensors used in competitor detectors. The OxyDetect utilises the Hummingbird Paracube


Micro paramagnetic sensor, whose industry-leading levels of linearity, accuracy and reliability have ensured its use as a trusted oxygen sensor already. The OxyDetect therefore demonstrates several advantages over traditional technologies, ensuring users enjoy an unprecedented level of safety and performance as well as a lower cost of lifetime ownership. The OxyDetect’s non-consumable design ensures


longevity and eliminates the costs associated with the regular replacement of electrochemical, galvanic or fuel cells, as well as the recognised problems of cell


degradation when in use or kept as a stock item. As the OxyDetect’s paramagnetic measurement stability also eliminates the requirement for frequent calibration, users avoid frequent labour and downtime costs, incurred either when a traditional cell is calibrated or replaced due to anticipated expiration or sudden failure. The company is also claiming a breakthrough in


light hydrocarbon gas analysis with the launch of the new SERVOTOUGH SpectraScan. A real time optical analyser utilising the Precisive


field proven optical bench, the SpectraScan offers a breakthrough capability in the continuous analysis of light hydrocarbons C1-C5+. A faster, less complex and more reliable technology than the gas chromatograph techniques traditionally used in light hydrocarbon applications, the SpectraScan is described by the company as a genuine game-changer in gas analysis. With an innovative measurement technology using


NIR/IR absorption spectroscopy with state of the art spectral scanning coupled with chemometric based data processing, the SpectraScan delivers exceptionally high accuracy, low cross sensitivity and a very fast speed of response. A flow-through cell utilises a patented spectrometer


design for a high quality optical measurement, resulting in a high signal-to-noise ratio which gives a highly stable and accurate measurement. No separation columns and valves are required. ■


OEM PRESSURE SENSORS: MODULAR SYSTEM


Today, our modular system contains many OEM sensor elements starting from only Ø 9,5 mm, suitable for mounting or welding.


We have developed various important technologies to amplify and compensate the signal from the OEM sensor.


www.keller-druck.com For more information ✔ at www.engineerlive.com/epe


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