AIR MONITORING 39 A truly portable CEMS without any ECD sensors


ETG’s 7550 P is the first compact and lightweight stack gas analyser which combines two advanced technology, NDIR and NDUV, on the same instrument. ETG 7550 P does not use any electrochemical cells and it can simultaneously measure up to seven separate gas components: SO2


, NO, NO2 , CO, CO2 , O2 .


With the use of high-performance light emitting diodes (IR-LED) and thermal micro radiators, ETG 7550 P has displayed high level of stability and a low detection limit, thus performing high quality NDIR gas analysis.


The compounds detected with NDUV technique have no cross sensitivity due to enhanced miniaturised UV LEDs. Oxygen measurement is performed by an advanced paramagnetic cell. In addition, the ETG 7550 P can include a portable sample conditioning system which will remove dust and decrease humidity as well as feeding the analyser at a compatible temperature and with a clean sample.


This system uses the latest generation of heated sampling probes, these are very compact and rugged and includes 5 metres? of heated hose as standard. When combined with the ETG 6900 P, a TDL based portable gas analyser, can also detect NH3, HCl, and CH4. The ETG 75560 P works with the standard communication protocols (Ethernet, Wi-Fi integration, Anybus), automatic calibration and a 7” touch screen monitor are standard features.


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The new generation of particulate monitors


Thousands of people die every year due to the inhalation of hazardous particulates at work. The response to this crisis has been hampered by the unavailability of reliable dust monitoring – until now.


Air XD from Trolex simultaneously monitors particulates across a full spectrum of harmful particulates (0.35µm-40µm). It delivers highly accurate data even when operating in heavy dust loads; has no filters, no pump, and requires servicing only every 6-12 months. It’s the new generation of particulate monitors - available from Trolex and their global network of distribution partners.


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Over 18,000 cases of work-related respiratory illnesses are recorded every year in the UK alone, according to the Labour Force Survey. The figure is over 1/2million globally.


In response to this health crisis, Trolex have created a new generation of particulate monitors: The Air XD Range.


Air XD is the world’s first and only plug-and-play, open-path, full-spectrum, real-time particulate monitor - retaining its accuracy in dust- loads of up to 1500 mg/m³ - around ten times more than any other particulate monitor can achieve.


An open-path brushed stainless steel chamber allows Air XD to monitor every particle flowing through the unit (up to 10,000 per second) with retained accuracy and near-zero maintenance. No more guesswork or complicated routines. Air XD isn’t just about saving lives – it provides many opportunities to save money and future-proof businesses.


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Automatic GC-FID solution for monitoring SVOCs, VOCs and PAHs in ambient air


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The fully automatic airmoVOC C6-C20+ auto-GC-FID analyser is specifically designed to carry out the measurement of hydrocarbons from C6 to higher than C25 (linear alcanes) with a sensitivity in the range of low ppt (ng/m3


).


This highly regarded instrument from Chromatotec measures naphthalene, 2-methyl-naphtalene, 1-methyl-naphtalene, acenaphthene, acenaphthylene, fluorene, phenanthrene and anthracene as standard. The aimoVOC C6-C20+ was also recently used for benzo(a) pyrene analysis. It has already been


deployed in various French reference institutes and universities to monitor PAHs at industrial sites, tropical forests and sites under decontamination.


When coupled with Quadrupole MS, any unexpected or unknown compounds are automatically identified thanks to the internal NIST library embedded in the system’s internal computer. With detection limit as low as 1 ppt for benzene or naphthalene the system can measure gaseous PAHs in ambient air in continue up to fluorene and linear alcanes up to N-Hexadecane. The instrument is designed to avoid the risk of contamination caused by other molecules that may be present in the sample. An integrated, internal calibration system is used to validate the data and to ensure analytical system is operating with stability. This cylinder free solution includes embedded gas generators and calibration controlled by GC in rack or wall mounted box.


Chromatotec’s Vistachrom Software is used to pilot the instrument as well as the peripherals (e.g. gas generators) which can be provided with the instrument system.


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54498pr@reply-direct.com WWW.ENVIROTECH-ONLINE.COM AET ANNUAL BUYERS’ GUIDE 2021


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