Air Monitoring 29


Sensors chosen for Croatian National Weather Observation Network


modernisation project


A breakthrough in the analysis of dithiazine in natural gas Hydrogen sulphide (H2


S) is a ubiquitous pollutant in natural gas, oil and gas applications; it is a


danger to human health and the environment as well as being highly corrosive and noxious. A variety of methods are used to eliminate this pollutant, For many years, using MEA-triazine as a cat to the H2


S mouse has proven to be arguably the most cost-effective and effi cient solution.


However this process precipitates the formation of dithiazine as a kinetic by-product. Although the presence of dithiazine is a reliable indicator of the removal of H2


S, its low level of solubility


creates a new problem in the process, as its presence leads to a reduction in permeability and production fl ow. Therefore, we need to learn about the procedure of dithiazine formation and its quantifi cation in natural gas.


Chromatotec® offer an analytical system equipped with a pre-concentration unit, chromatography column and a mass spectrometer (MS) detector for detecting and quantifying dithiazine in natural gas. This rugged system operates 24/7 in the fi eld and automatically generates analytical data. The new system uses hydrogen as its carrier gas which can be generated by Chromatotec’s Hydroxychrom generator. To operate the system, all you need is a supply of electricity and water. Chromatotec’s MEDOR gas chromatograph (GC) can be integrated in the system to quantify H2


S and mercaptans in natural gas.


More information online: ilmt.co/PL/xMne For More Info, email:


Biral is supplying 34 of its VPF-750 sensors to the Croatian Meteorological and Hydrological Service, a government body that supports the country’s economic and sustainable development.


The strategic modernisation of the National Weather Observation Network in Croatia, METMONIC project will establish a modern and high-quality system of automatic surface meteorological stations, meteorological- oceanographic buoys and remote measurement systems, including meteorological radars.


Biral partner CGS Labs led the project locally to install 34 VPF-750s which form part of the more than 400 modern automatic meteorological systems to provide traceable, reliable and high-quality information on the status of the atmosphere and sea around the Republic of Croatia.


With these in place, those monitoring the data are able to view changes to the weather and climate and see improved early warnings of hazardous conditions, with analysis of the current meteorological observation network confi rming the need to increase the availability of measured climate variables as well as the analyses of climate conditions.


The VPF-750 Visibility and Present Weather sensor is the most advanced in Biral’s product range. Its enhanced performance allows the reporting of freezing precipitation in addition to the weather codes typically available from a forward scatter sensor.


The sensor is designed for use in aviation applications where extended weather information, including past weather, is required for inclusion in METAR reports. The sensor is also well suited to research applications and use in meteorological observation networks. The unique backscatter receiver combined with accurate external temperature, humidity and precipitation sensors gives the VPF-750 unparalleled abilities in distinguishing frozen from liquid precipitation, with the added advantage of identifying freezing precipitation. The sensor reports both WMO table 4680 and METAR codes to simplify integration to host systems. A wealth of other data is provided including a transmissometer equivalent EXCO.


Nathan Neal, Sales and Marketing Director at Biral, said: “This is a great project for Biral and we are very pleased to be working on it in partnership with our friends from CGS Labs to improve early warnings to severe weather and contributing to the development of human, technical and scientifi c capacities in order to help Croatia achieve sustainable development.


“The reliability and measuring accuracy of our sensors leads the way in often diffi cult applications, so we are happy to be involved and helping to modernise current components to make it easier to access archives and databases and accompanying infrastructure.”


For More Info, email: email:


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57097pr@reply-direct.com WWW.ENVIROTECH-ONLINE.COM New heated VOC analyser is truly unique


Signal Group has announced the launch of a new, highly innovative, portable gas analyser, the SOLAR XPLORE. One of the company’s core technologies is Flame Ionisation Detection (FID) for the measurement of volatile organic compounds (VOCs), and the new instrument brings the unique advantages of the latest fi xed analysers to a compact, portable device that is set to dominate the market.


“There are two unique features in the SOLAR XPLORE that set it apart from any other analyser in the world,” explains Signal’s Stephane Canadas. “Firstly, we have taken the detachable tablet interface from our S4 fi xed analysers and built it into the new instrument. This will be an enormous benefi t for stack testers that have to travel up ladders and across roofs, because using the tablet, they will be able to operate the analyser wirelessly from a convenient location up to 50 metres away.


email: For More Info, email: email:


“Secondly, the new analyser can be fi tted with twin FIDs, which means that users will be able to monitor total VOCs, methane, and non-methane VOCs (NMVOCs) simultaneously.”


The new SOLAR XPLORE is also supplied with an ethernet connection and software to enable remote operation. This means that users will be able to manage the analyser and monitor the data from almost anywhere in the world.


New design features include an inbuilt datalogger and a lightweight but robust frame. However, users will be particularly impressed with the chassis design, because it allows the internal electronics to simply slide out on a rail and unfold for maintenance operations.


Summarising, Stephane says: “Anyone with responsibility for monitoring VOC emissions, especially if they need to discriminate NMVOCs, will be tremendously excited by this development. As a portable heated FID, the SOLAR XPLORE offers everything that our customers wish for, and more, so we share their excitement!”


For More Info, email: email:


For More Info, email: email:


56746pr@reply-direct.com 57047pr@reply-direct.com


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