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Upgraded visibility sensors ideal for the marine environmental applications


Meteorological equipment specialist Biral is nowoffering its SWS range of visibility and present weather sensors with the added protection of hard anodising as an option. With this additional surface protection, the SWS range can be used in all shoreline and off shore applications, such as at ports and harbours, on lighthouses as well as on marine platforms and meteorological buoys. The SWS range is very competitively priced and the anodised version is offered with a market leading five-year warranty.


The SWS-100 and SWS-050 are optimised for use in applications where accurate and reliable visibility measurements are required with the addition of fundamental WMO 4680 precipitation codes. The forward scatter design allows the sensor to be compact whilst the inclusion of serial, analogue and relay outputs makes these sensors easy to interface to any system.


The measurement of visibility by forward scatter as used by the SWS-100 and SWS-050 is now widely accepted and seen as having significant advantages over more traditional techniques such as the use of transmissometers or backscatter sensors. The SWS sensors are compact, very easy to install, require little maintenance and have a maximum visibility range of 10m to 75km for the SWS-100


and 10m to 40km for the SWS-050. The factory calibration of the SWS sensor family is undertaken in accordance with the recommendations of ICAO 9328 and is fully traceable to a highly respected national weather service transmissometer.


Visibility measurements are reported as Meteorological Optical Range (MOR). The reporting of atmospheric Extinction Coefficient (EXCO) can be selected by the user if required. The inclusion of hood heating and advanced self-test features as standard makes the SWS-050 Biral’s most cost effective solution for visibility measurement, and window contamination monitoring and compensation ensures the results remain accurate even in challenging conditions.


Present weather reporting in some applications is useful for finding out what is causing the reduction in visibility as this may fundamentally change the action to be taken by the user. The SWS-100 therefore has the ability to identify and report the presence of drizzle, rain and snow precipitation types using WMO Table 4680 codes. Fog, haze, and unidentified precipitation codes are also reported. The SWS-100 is used by many global national weather services, including the United Kingdom’s MetOffice, as part of synoptic monitoring networks due to its wide measurement range, reliability and measurement accuracy. The SWS-100 and SWS-050 are very versatile sensors suited to a very wide variety of applications.


More information online: ilmt.co/PL/kR5o For More Info, email:


Continuous NH3 and H2O monitoring


made simple, safe and cost effective The QAL1 certified, qLDX gas analyser, from SW Technology is a system for the continuous monitoring of NH3 and H2O gas. Utilising Tunable Diode Laser Spectrometry (TDLS), the system has almost no cross-sensitivity with other gases and includes an innovative, patented measurement principle with no necessity for a physical reference-channel.


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This analyser has an extremely high sensitivity to the targeted gas with a very rapid response time. With functional safety, continuous status reporting, and a very user-friendly touch screen and navigation keyboard, the qLDX is not only safe and accurate – it is easy to operate. This analyser has a life expectancy of 10+ years and, with no replacement parts or calibration required, the cost of ownership is exceptionally low.


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


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JCT stands for reliable transfer of sample gas from the stack to the analyzer to ensure trust- worthy results.


Air Monitoring 33


A perfect partner companion for petroleum refiners, gas manufacturers, stack gas and DeNox plant operators


ECO PHYSICS’ nCLD 822 Mh includes everything that is needed for measuring NO, NO2


, NOX and optionally NH3


in un-preconditioned gas


samples. Equiped with an enhanced detector-block, sample flow and pressure regulation, as well as temperature independence, the nCLD 800 instruments allow for even lower detection limits. Choose freely up to four measurement ranges within 5’000ppm, at a minimum detectable concentration of 0.12ppm. The integrated hot tubing enables the instrument to analyse hot and moist sources without external preconditioning. The calibration of the unit runs quickly and automatically, with all necessary data stored and available anywhere and at any time. The new touch sensitive graphical user interface “GUI“ enables the user to individually adjust the instrument operation and data management according to their requirements. The bright 8” monitor displays the values and the instrument’s performance in each, individual preferred way. Multiple digital in- and outputs guarantee a maximal connectivity for remote operation, control and maintenance of the nCLD 822 Mh, ensuring unsurpassed precision and reliability. The measurement principle will conform to the standard method for NOX- detection in stationary source emissions (EN 15267).


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


Radon Gas Exposure - the second leading cause


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of lung cancer The World Health Organisation identifies Radon gas as the second risk factor in the occurrence of lung cancer with over 10% of cases linked to excessive Radon exposure.


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We are all exposed to radiation from natural and man-made sources. Radon is a colourless, odourless radioactive gas formed by the radioactive decay of the


small amounts of uranium that occur naturally in all rocks and soils.


Radon in soil is the biggest source of Radon in indoor air and presents a greater risk than Radon in drinking water. Properties built in certain areas around the world are more likely to contain high levels of Radon due to the underlying geology and varying amounts of uranium present. When it permeates the ground into open air, Radon is quickly diluted to low concentrations. However, if it rises into a building, it can become trapped and increase to dangerous concentrations. Alpha particles produced by the radioactive decay of inhaled gas cause irreparable damage to lung cells.


The Euro-Gas Radon SS sensing component detects field range of 0-65,000Bq/m3 levels. With a uniquely designed high performance phototransistor sensor, it has a standard range of 1750pCi/l Rn. Its easy-to-use advanced technology makes it an ideal sensor for installation into both portable and fixed detection equipment in air quality and gas detection, delivering a complete set of information for instantaneous and average Radon alpha particle concentrations.


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


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47252pr@reply-direct.com www.envirotech-online.com AET October / November 2019


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