Air Monitoring 33 New Portable FTIR Gas Analyser Detects Almost any Gas
Gasmet Technologies Oy (Finland) has announced the launch of the DX4040 – a portable FTIR gas analyser that enables the field measurement of literally thousands of gases. The DX4040 is the second generation of the world’s first truly portable FTIR analyser which brought laboratory grade gas analysis into the field, and thereby brought the benefits of multiparameter FTIR gas analysis to monitoring applications involving industrial safety, medical gases, fumigants/pesticides, soil gas, contaminated land, first responders/hazmat, fire investigation, toxic industrial chemicals, chemical warfare agents and many others.
The new instrument is easier to use and more flexible than its predecessor. However, Gasmet CEO Mikko Suuntala says: "The most important development lies in the ability of the device to identify unknown gases in the field (at the touch of one button) when using a new version of the unit's Calcmet™ software on a Windows tablet pc."
Users of the DX4040's predecessor will be pleased to learn that the unknown gas identification capability is retrospectively applicable to existing DX4030 analysers when using the new software and a tablet PC.
The Calcmet™ Pro software makes it possible to retrospectively identify almost any gas from the recorded spectra. However, for those users investigating known species the unit can be used with a handheld Bluetooth PDA running Calcmet™ Lite and incorporating a 3G modem, camera and GPS so that time and location are assigned to each analysis. Using the DX4040 with a PDA is a popular choice because it enables the simultaneous display, in almost real-time, of up to 25 gases.
Summarising the benefits of the DX4040 Mikko Suuntala says: “This instrument is unique; it is able to identify both organic and inorganic compounds, whilst also storing sample spectra for post-measurement analysis using a chemical library of over 5000 compounds. There are no sensors that might need future replacement and operation is extremely easy; no sample preparation is required and calibration is simply a zero check with nitrogen or air.”
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FTIR Best Option for Multi-Gas Emissions
Globally, the number of industrial processes and emissions being monitored with Gasmet’s FTIR multi-gas technology has increased enormously in recent years as process managers exploit the benefits of being able to monitor a wide range of gases simultaneously and with minimal maintenance and calibration requirements.
Gasmet CEMS (continuous emissions monitoring systems) are used for continuous emissions monitoring in incinerators, biomass boilers, and cement plants, and for process monitoring in many different applications. A Gasmet FTIR becomes cost-effective when there is a need to monitor 4 or more gases or vapours. Typically, the analyser is set to measure up to 50 parameters simultaneously for compliance purposes and for process control with the most common configurations including
H2O, CO2, CO, SO2, NO, NO2, N2O, HCl, HF, NH3, O2 and TOC. However, Gasmet’s Antti Heikkila says “A major advantage of our FTIR technology is that we are able to add further parameters quickly and simply without a requirement for new hardware if there is a change in the process or the regulations - which means the analyser is ‘future proof’.”
Each system is supplied with an industrial PC for processing and storing sample spectra with Calcmet software, which controls the CEM system, analyses the spectrum using sophisticated analysis algorithms, and offers a variety of fieldbus output protocols for interfacing with plant automation systems. For example, cross- interference between gases is automatically taken into account in the analysis settings for each compound. A further advantage of the stored spectra is the retrospective analysis opportunity that they offer. This means that if users wish to study a new parameter they are able to look back at old spectra and derive concentration values.
A further advantage of Gasmet FTIR is the low maintenance requirement. Zero calibration with Nitrogen (background) just takes a few minutes and is required once a day. Water vapour calibration is performed after every major maintenance operation and at least once per year. Under normal circumstances no other calibration is required which saves a great deal of time, effort and money.
The Gasmet CEMS has been certified by TÜV (Germany) and MCERTS (UK), and fulfils the requirements of QAL 1 according to EN 14181 and EN ISO 14956.
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www.envirotech-online.com AET Annual Buyers’ Guide 2013 108
Gasmet Technologies (Asia) Ltd. Hong Kong
Tel: +852 3568 7586 Fax: +852 3586 4600 Email:
sales@gasmet.com.hk
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