Volatile organic compound emissions control.

A leading coatings manufacturer in Wales has installed an advanced online gas analysis system to monitor emissions of Volatile Organic Compounds (VOCs), enabling the company to leverage real-time data for measurable environmental, operational and compliance benefits.

ProAmpac Advanced Coatings, which has operated in Wrexham for more than 50 years, invested in a new Regenerative Thermal Oxidiser (RTO) in 2025. The RTO destroys VOCs, air pollutants and odours through high‑temperature oxidation and is continuously monitored using a Signal Group VOC analyser to optimise performance, provide early warnings and support regulatory compliance.

Dan Hitchcock, Project Manager at ProAmpac says “We see the analyser as essential. Real‑time data supports effective process control and allows us to verify that emissions are being correctly abated. That gives us confidence that we will meet emissions limits when regulatory testing is carried out.”

Long‑standing commitment to emissions control.
ProAmpac Advanced Coatings (PAC) is a global supplier of precision coating materials, including coated papers, films and specialist substrates for applications such as digital imaging, electronics, medical and optical technologies. Its manufacturing processes involve the use of solvents, making robust emissions control essential.

As a Part A2 installation, the Wrexham site has long operated an on‑site thermal oxidiser to protect the environment and meet the requirements of an environmental permit issued by the local council. Historically, the permit has included emission limit values (ELVs) for pollutants such as Total Organic Carbon (VOCs), carbon monoxide and nitrogen oxides. These emissions are checked during annual visits by an MCERTS‑accredited contractor. In addition to periodic compliance testing, PAC has continuously monitored post‑combustion VOC emissions for over 20 years using a Signal Group analyser employing a flame ionisation detector (FID), the reference method for VOC measurement. The original analyser remained in operation for approximately two decades.  

Investing ahead of regulatory change.
Installed in 1995, the original RTO was approaching the end of its service life after 30 years of continuous operation, with ageing ceramic beds requiring increasing maintenance. At the same time, emissions regulations affecting solvent‑based coating processes were becoming more stringent. Updates to the Best Available Technique (BAT) Reference Document for Surface Treatment using Organic Solvents (STS BREF) introduced lower emission limits for applicable installations, prompting the local council to begin drafting a revised permit for the site.

“In that context, relying solely on periodic testing would not give us the level of operational visibility we need,” Dan Hitchcock (pictured right) explains. “Continuous monitoring allows us to manage performance proactively rather than retrospectively.” With an ageing RTO, and with the prospect of tighter regulations, PAC chose to install a new, more efficient RTO with a capacity of up to 150,000 Nm³/hour, commissioned in 2025.

Real‑time data, real‑world benefits.
PAC continues to operate continuous VOC monitoring alongside statutory compliance testing. Dan Hitchcock, who has worked at the Wrexham site since 1992, says real‑time data is critical to effective control of both coating processes and the RTO. “The analyser helps us optimise oxidiser performance, manage emissions from the coating lines, and control fuel input.” he says. “Any issue with the RTO could have serious consequences, so early detection is vital.”

An integrated monitoring and alarm system provides management staff with real‑time displays, historical data and automated alerts. The system also confirms correct operation and calibration of both the analyser and the heated sample line.

Seán O’Brien, Health, Safety and Environment Manager at the site, adds: “Continuous VOC monitoring allows us to identify potential problems early and address them before they escalate. It gives us confidence that compliance monitoring will demonstrate performance that meets permit requirements, while providing additional reassurance to the regulator.”  

Proven performance from Signal Group.
Following more than 20 years of reliable service from its first Signal Group analyser, PAC selected Signal once again when upgrading its monitoring system for the new RTO. The original instrument has been replaced with an MCERTS‑approved SOLAR CEMNEX continuous FID analyser, installed at the base of the RTO exhaust stack. Signal Group also supplied the heated sample line. As an MCERTS‑certified system, the analyser’s data are accepted by regulators including local councils, Natural Resources Wales, SEPA and the Environment Agency.

The system is supported by daily automatic zero checks, periodic span checks using calibration gas, and comprehensive on‑site servicing every six months under a long‑term maintenance agreement with Signal Group.

Summary.
Regenerative thermal oxidisers are designed for continuous operation, and any interruption to their operation would also increase the cost of recreating sufficiently high temperatures within the RTO. Also, thermal cycling can cause mechanical stress, increase energy consumption and damage ceramic media affecting the performance of the RTO. At the Wrexham site, where production schedules vary daily, continuous monitoring is critical for providing assurance that the RTO is performing well and for

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@GasAnalysers @ProAmpac  @_Enviro_News #PAuto #Environment #VOC

New VOC emissions monitor approved.

Signal Group has announced the launch of SOLAR CEMNEX, a continuous emissions monitoring (CEM) system with MCERTS approval for the measurement of total organic carbon concentration in sample gas. Designed for regulatory compliance and process control, employing a reference method flame ionisation detector (FID), the new analyser will be ideal for monitoring a wide variety of applications. These include incinerators, medium and large combustion plants, VOC abatement equipment, packaging, and solvent using processes such as paint, print, textiles and adhesives.

The SOLAR CEMNEX is a self-contained monitoring system with a rack mounted VOC analyser, a heated filter, heated sample lines, and an automated calibration system.

“We have been developing and manufacturing FID analysers for over 50 years, and the SOLAR CEMNEX is our most advanced system yet,” explains Signal MD, James Clements. “Customers can order these analysers very simply via the website – they just need to answer four yes/no questions, such as whether they want a detachable tablet/screen, and that’s it – they can place an order and a brand-new SOLAR CEMNEX will be delivered ready for immediate deployment.”

Following a rigorous program of tests at TÜV in Germany, MCERTS approval verifies that the complete monitoring system complies with the performance and uncertainty requirements specified in Britain’s Environment Agency Guidance: MCERTS for stack emissions monitoring equipment at industrial installations - Continuous emissions monitoring systems (CEMS) Updated 28 August 2024, EN 15267-1:2023, EN15267-2:2023, EN 15267-3:2007 and QAL 1 as defined in EN 14181: 2014.

Certification for the SOLAR CEMNEX covers the complete system, including the SOLAR FID analyser, Signal’s heated line and sample probes, and Signal’s 363 SM heated sample filter. Consequently, systems integrators can deploy these items with other MCERTS approved equipment for regulatory compliance monitoring.

The SOLAR CEMNEX can be supplied with a detachable tablet/screen, which allows users to operate the analyser from up to 50 metres away, via inbuilt 802.11 Wi-Fi. In addition, each unit has its own IP address, and is compatible with 3G, 4G, 5G, GPRS, Bluetooth and satellite communications. This provides users with simple and secure access to their analysers at any time, from anywhere.

Summarizing, James Clements says: “In recent years we have ramped up the development of our gas analysers to enhance their accuracy, simplicity and connectivity, so we are delighted to now add MCERTS approval for those customers with a regulatory requirement.”

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@GasAnalysers @_Enviro_News #Mcerts #AirQuality #PAuto

The Flame Ionisation Detection (FID) method for monitoring emissions.

The Flame Ionisation Detection (FID) method was first developed in the 1950s for the laboratory analysis of organic chemicals. Later, when environmental regulations began to limit the emissions of volatile organic chemicals (VOCs) in the 1970’s and 1980’s, the FID method was adapted for emissions monitoring. Signal Group was one of the first companies in the world to develop VOC emissions analysers, and in this article James Clements, Managing Director, explains why FID became the reference method, and why it lasted the test of time.

Background
Organic chemicals have always been widely used in industrial processes, but awareness of the harmful effects of VOCs on health and the environment did not become significant until the 1970s. At that time, President Richard Nixon presented proposals on environmental protection which included the establishment of a federal Environmental Protection Agency (EPA). This led to the development of maximum allowable concentrations for pollutants, many of which were subsequently adopted around the world.

VOCs are common constituents in the emissions of processes that involve petrochemicals, paints, coatings, adhesives, waxes, disinfectants and cleaning chemicals. In many of these processes, solvents play a major role and the release of VOCs represents a risk to health and the environment. Similarly, combustion processes give rise to VOC emissions, particularly where combustion involves the use of an organic fuel. This includes fossil fuels such as petrol, diesel and oil, as well as wastes and biofuels.

By monitoring total organic carbon (TOC) concentration in emissions, process operators can demonstrate compliance with relevant legislation. However, such measurements also provide insights for process optimisation, because, for example, the presence of organic compounds may be an indicator of incomplete combustion. In addition, TOC is frequently measured post-abatement in order to measure abatement efficiency.

Why was FID chosen as the reference method for VOC emissions monitoring?
It is normal practice for regulators to specify a standard reference method for monitoring pollutants, so that compliance measurements are accurate and directly comparable with the limits, and with measurements from other process operators. FID has been widely acknowledged as the reference method for VOCs for over 50 years, and there are many reasons for this:

1. Already proven - initially developed as a detection method for laboratory Gas Chromatographs, FID was already well-established as a reliable technology for the detection of hydrocarbons. Adaptation for measuring VOC emissions was therefore relatively straightforward. As a consequence, Signal Group has been developing and supplying thousands of FID analysers all over the world for almost as long as FID has been the reference method.
2. Cost – in comparison with methods such as mass spectrometry (MS) or Fourier transform infrared spectroscopy (FTIR), FID is relatively simple and therefore less costly to manufacture. This is important because, globally, the number of processes that generate VOC emissions is enormous, so it is important that reference method technology is affordable for the organisations, large and small, that are required to monitor their hydrocarbon emissions, or that need to monitor for other purposes such as process control or abatement management.
3. Specificity – the FID detection method is specifically designed to detect carbon-hydrogen (C-H) bonds, making it highly selective for organic compounds. Unlike some other detection methods, FID does not respond significantly to inorganic gases which helps to minimise interference from non-VOCs, providing more accurate and reliable emissions measurements.
4. High sensitivity – the FID method is highly sensitive to hydrocarbons, which makes it ideal for even low-level measurements, particularly as environmental regulations become more stringent. Signal Group’s latest FIDs, for example, offer measurement resolution down to 0.01ppm. It is also important to note that FID sensitivity is much less variable than other techniques. Photoionisation detection (PID) for example exhibits widely varying response factors for individual hydrocarbons, rendering it inappropriate for the measurement of hydrocarbon mixtures. In contrast, FID is ideal for the measurement of total hydrocarbon content, whether the hydrocarbon is an individual compound or a mixture of species.
5. 
   Wide range – in addition to their high sensitivity, FIDs are also able to make measurements at significantly higher ranges. The S4 Solar FID (shown right) for example, has a number of user-selectable ranges, all the way from 0 to 1ppm with a resolution of 0.01ppm, up to 0 to 300,000 ppm with a resolution of 1ppm.
6. Fast response - FID analysers provide an almost immediate response to a sample gas, which is extremely important for regulatory compliance, particularly with processes emissions that can vary significantly from one minute to the next. The typical response time for Signal’s latest FIDs can be less than 1 second. This is also important for process control and engine emissions testing.
7. Stability and reproducibility - decades of experience in a wide variety of applications have shown FID’s ability to produce stable measurements in the long-term. Similarly, when identical FID units measure the same sample gas, the same results are given. This is an extremely important feature of standard reference methods because it provides confidence in measurements – for both the user and the regulator.
8. Applicable to continuous monitoring – many VOC emissions regulations necessitate continuous monitoring, so an important feature of FIDs is their compatibility with Continuous Emissions Monitoring Systems (CEMS). Nevertheless, FIDs should be sufficiently flexible to be suitable for discontinuous monitoring with portable instruments. Consequently, Signal Group developed lightweight ruggedised versions of its FID technology so that, where regulations permit, a single portable FID can be used to measure the VOC emissions of multiple sources – at the same site or at different sites.

FID development – manufacturer’s perspective.
Although the latest range of FIDs from Signal Group feature a fourth-generation detector, it is truly remarkable that the core measurement technology has changed very little since the company first developed a FID in the 1970s. The main reason for this is that each generation of Signal’s FID has featured the company’s unique precision-machined monobloc detector which guarantees uniformity of production in a compact, leak-free design.

Most of Signal’s FID development work has therefore focused on issues outside of the core technology. These issues have either been application specific, or have addressed ease of operation, connectivity and data management.

In addition to fixed and portable FIDs, the company has developed both hot and cold FIDs for ambient or post-combustion applications. Dual FIDs have also been developed, featuring two FIDs in one instrument, so that methane and non-methane hydrocarbons (NMHCs) can be monitored simultaneously. This is an important differentiation because methane’s primary significance is as a greenhouse gas (around 30 times more powerful as a greenhouse gas than carbon dioxide), whereas NMHCs contribute to the photochemical generation of smog and atmospheric ozone. So, methane emissions are important because of their role in climate change, whereas NMHC emissions affect air quality and health.

Their development work  has also focused on automation, datalogging, sample conditioning and advanced calibration tools. In addition, the most recent generation of instruments features a wireless tablet capable of connecting via Wi-Fi to the analyser from a distance of up to 50 metres. This provides users with the ability to view live data in a different location, and even manage datalogging, alarms and calibration from a distance.

In addition, all Series IV instruments, including the new SOLAR XPLORE (right), have their own IP address, and are compatible with 3G, 4G, 5G, GPRS, Bluetooth and satellite communications. This provides users with simple and secure access to their analysers at any time, from anywhere.

Conclusion.
In summary, Signal’s first FID analysers in the 1970s were able to provide accurate consistent measurements for total hydrocarbons. Now, thousands of instruments later, their successors are still producing the same reliable data, but with built-in tools and accessories that make the monitoring process easier and less prone to human error. Employing the standard reference method, supported by over 50 years of rigorous work in every conceivable application, FID has stood the test of time, offering operators and regulators confidence and trust in VOC measurements.

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F@GasAnalysers @StandardLithium @_Enviro_News #PAuto #Environment

Tee-shirts to intrigue!

Intriguingly, the Signal Group stand at AQE 2024 (9/10 October Birmingham GB), will be staffed by gas analysis experts wearing T-shirts saying ‘Ask me about MCERTS!’ It’s too early to say more, but anyone interested in VOC emissions monitoring should head for Stand-L5…if only to try out the detachable tablets.

With a heavy focus on technology development, Signal’s MD James Clements is keen for visitors to see the latest advances in gas analysis equipment. “For many people this will be the first opportunity to see the detachable tablets that now sit where our instrument screens used to be. These tablets are now standard across our entire range, opening up a new world of opportunities, and we look forward to demonstrating them at AQE,” he explains.

“Detachable tablets allow remote operation for safety and convenience, but our Series 4 (S4) instruments also have their own IP address, and are compatible with multiple communications methods, which means that users have secure access to their analysers at any time, from anywhere.”

In addition to the latest technologies, Signal’s stand will also feature some of the company’s gas sampling, handling and calibration equipment, much of which has been well-proven in the field and has not changed for years. “Our Gas Dividers are a good example of great design that has stood the test of time,” James explains. “They have been proven to be highly accurate, and can help reduce the cost and uncertainty that comes with multiple calibration bottles. This will be of interest to both AQE visitors and exhibitors.”

Signal Group experts will be available on the company’s AQE stand to discuss gas analysis issues such as sampling methods, sample treatment, analytical technologies, calibration and remote communications.

Summarising, James says: “Even those visitors that don’t currently need any gas analysis equipment should visit our stand - for the same reason that everyone should test-drive an electric car; everyone should come and play with our removeable tablets.”

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@GasAnalysers @_Enviro_News #AQE2024 #AirQuality #PAuto

Gas analyser safeguards packaging environmental compliance.

A global packaging company is monitoring VOC emissions (volatile organic compounds) continuously at its facility in Ireland - primarily to manage and improve the plant’s environmental performance and to demonstrate regulatory compliance. Due to a changeover in equipment, a short-term requirement arose for VOC monitoring with a flame ionisation detector (FID) that was hired from the Signal Group.

Feedback from the project indicated that the Signal analyser proved to be accurate and reliable, and provided the packaging manufacturer with a problem-free transition as it updated its monitoring regime. However, there was a delay in the work, and the rental of the Signal analyser was extended for several months.

The plant’s VOC emissions arise from printing and laminating processes, and are treated by an oxidiser, after which an FID analyser measures the total organic hydrocarbon content post-oxidation. By monitoring the emissions continuously, the plant’s operators are able to refine their processes to improve efficiency, and to minimise emissions.

The hired Signal equipment included a heated FID analyser, a heated line with controller, and a filter. “We manufacture all of these items, whihc means that the complete system is delivered ready-to-go, so that clients can be assured of compatibility, accuracy and reliability,” explains Signal MD, James Clements. We have hundreds of these systems in operation all over the world, so our staff are highly skilled and experienced in delivering support.

“As the world strives to meet the COP28 goals, manufacturers are looking to reduce their carbon footprint, as well as the carbon footprint of their supply chains. Lowering VOC emissions is one of the ways in which companies can help achieve these critically important objectives.”

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@GasAnalysers @_Enviro_News #PAuto #Environment #Ireland

Importance of occupational safety equipment.

Employers have a duty of care to protect the health, safety and welfare of employees, so it is vitally important to keep workers’ occupational exposure to harmful gases within permissible limits. For businesses that handle hazardous vapours, failure to comply with this duty can have disastrous consequences, so it is extremely important to deploy trustworthy sensing technology.

Original equipment manufacturers (OEMs) help their customers lower risk, and as such cannot utilise unproven or low-cost sensors that could increase risk. For this reason, ION Science’s mission is to provide premium quality, highly accurate sensors that are the most reliable in the world.

Risks from Volatile Organic Compounds (VOCs).
VOCs exist widely in almost every industry as key components of fuels, petrochemicals, solvents, paints, adhesives, cleaners etc. Most VOCs are flammable and potentially explosive, as well as being harmful to both health and the environment. VOCs are organic compounds that evaporate under normal conditions. Some are harmful to the skin or eyes, and can be absorbed, but their volatility means that VOCs can be inhaled, and may cause a wide variety of negative health effects ranging from minor irritation to cancer, and even death.

Generally speaking, high concentrations (% levels) are necessary for combustion or explosion risk; low concentrations (ppm) can represent a toxic risk from short-term exposure, and trace levels (ppb) can cause long-term toxic effects.

The United Nations World Day for Safety and Health at Work on 28th April 2023, focuses on international attention on the magnitude of the problem, highlighting how promoting and creating a health and safety culture can help reduce the number of work-related deaths and injuries. ION Science wholeheartedly supports this initiative, and believes that effective systems and risk reduction rely on accurate, reliable data.

In addition to the potentially lethal effects of inadequate industrial health and safety, organisations which fail in their duty also risk huge financial losses from prosecutions, fines, and critical damage to their brands. Investments in health and safety monitoring and personal protective equipment, such as reliable gas detectors, are therefore negligible in comparison with the consequences of failure.

Workplace risk assessments should identify the presence of potential VOC sources and enable the implementation of appropriate measures to mitigate the risks. Personal, wearable VOC detectors help protect staff that have been identified as being at the greatest risk, and routine inspections with portable VOC detectors help to identify fugitive emissions from leaks or spills from equipment, tanks, pipes, seals, valves, etc. In addition, fixed VOC monitors continuously monitor workspaces to check that levels do not approach or exceed exposure limits; raising alarms if they do.

Why monitor?
Accurate, reliable measurements are necessary for the rapid detection of risks to plant and workforces. Monitoring also informs the development of mitigation measures, and allows operators to check the performance of such measures, and to demonstrate compliance with workplace exposure regulations.

The minimum concentration of a combustible VOC necessary to support its combustion in air is defined as the Lower Explosive Limit (LEL). Importantly, toxic VOCs concentrations are orders of magnitude lower than explosive limits, so it is vitally important for detection equipment to offer a wide range with sufficient sensitivity to measure trace toxic gases.

The health effects of exposure to VOCs depend on the concentration, the length of exposure, and the VOCs present. Workplace exposure limits (WEL) therefore exist for each VOC with short-term exposure limits (STEL) typically applying to the maximum concentration over a 15-minute period, and time-weighted average levels (TWA) typically calculated over an 8-hour period.

Choosing the right VOC sensor technology.
Gas detection equipment manufacturers have three main options for the measurement of VOCs. These are (1) electrochemical (EC) sensors, (2) metal oxide semiconductor (MOS) sensors and (3) photoionisation detection (PID) sensors.

EC sensors are low-cost, but they only respond to VOCs that are electroactive; they require electronic optimisation for target VOCs, have a slow response time (minutes) and are cross-sensitive to other gases commonly found in the workplace.

MOS sensors are also low-cost but suffer from baseline drift and humidity sensitivity. Their response is non-linear, and they also suffer from cross-sensitivity to other gases commonly found in the workplace.

PIDs are the most in-demand and appropriate sensors for the measurement of VOCs for health and safety applications. This is because of their fast response (1-3 secs), and because they are the most selective technique to VOCs. In addition, with a choice of PID lamps it is possible to optimise the sensor for different applications, and known response factors enable quantitative analysis of specific VOCs.

For most PID sensor manufacturers, sensitivity to contamination and humidity is a major challenge, but these issues have been resolved within ION’s MiniPID sensor range. This is one of the main reasons behind ION’s position as the largest PID sensor manufacturer in the world. All MiniPID sensors have a patented design with a third electrode that nullifies potential humidity interference, delivering a stable signal from 0 – 99% RH.

The sensitivity of PID sensors is extremely important in many applications; particularly where the sensors are deployed in the measurement of trace VOCs. Recognising the importance of this feature, ION’s MiniPID range includes the most sensitive PID in the world.

Reliability is a critically important feature of sensors that lower health and safety risks. Uniquely, ION’s MiniPIDs incorporate an ASIC chip, which continuously monitors lamp and sensor performance, providing fail-safe assurance of sensor performance. The ASIC also manages the sensor to give exceptional temperature stability from -40 to +65oC.

In contrast with other PID manufacturers, ION designs, develops and manufactures 10.0, 10.6 and 11.7 eV lamps. This is crucially important for OEMs because it means that their measurement capabilities are not restricted to compounds with an ionisation energy lower than 10.6 eV, for example. So, for example, where OEMs require sensors for monitoring gases such as chlorocarbons, unsaturated fluorocarbons, formaldehyde, ethylene and methanol; ION’s unique 11.7 eV gas sensor is the ideal solution. Equally, ION’s 10.0 eV sensor is ideal for toxic aromatic compounds such as benzene.

Choosing the right particulate sensors.
Dust and other forms of airborne particulates represent significant risks in the workplace; both as a combustion source and a breathing hazard. Consequently, the requirement for monitoring equipment is growing rapidly alongside tightening regulations.

Responding to this growing demand, ION has added the NextPM sensor to its portfolio following recent independent testing by AQ-SPEC at South Coast AQMD in the USA. The NextPM sensors showed strong to very strong correlations for both PM1.0 and PM2.5 with reference instruments costing several hundred times the cost of the sensors.

Thanks to its patented airflow control technology, Next-PM ensures years of maintenance-free measurements, even in highly polluted environments. The sensor also incorporates patented technology to prevent humidity effects, so these sensors are ideal for inclusion in instruments and systems that monitor industrial processes or air quality; both indoors and outdoors, even in harsh conditions.

Conclusion.
The cost of designing ION’s world-class VOC and particulate sensors into OEM instruments, processes and systems is negligible in comparison with the potential costs and risks incurred by not specifying the best available technology.

@ionscience @_Enviro_News #PAuto  #HealthSafety #AirQuality

Air quality sensor.

The SGP41 VOC+NOx sensor for indoor air quality applications is supplied by Sensirion. The sensor is designed as a digital smart switch and regulation unit for air treatment devices such as air purifiers.

“This sensor platform enables the simultaneous measurement of both volatile organic compounds and nitrogen oxides, and therefore responds to the growing awareness of the importance of good indoor air quality and the stricter requirements for these applications. With the SGP41, Sensirion aims to further improve indoor air quality and help to protect our health and well-being,” says Dr. Oliver Martin, their Product Manager for Gas Sensors.

 Good air quality is an important component of a healthy indoor environment because indoor air pollution can have harmful impacts on our health. There are many potential and common dangers found in indoor air, such as VOCs (volatile organic compounds), which are typically found in building materials, furniture and cleaning products, among others, and are emitted by humans, and NOx (nitrogen oxides), which are a by-product of combustion. Exposure to these pollutants can be limited by ensuring that enclosed spaces have sufficient ventilation. In addition, air treatment devices are used to eliminate harmful gases in indoor environments and thus avoid unhealthy situations. Equipped with Sensirion’s new SGP41, air purifiers become smart by reliably monitoring VOCs and NOx at all times and removing these gas emissions automatically when the appropriate filters are installed.

The VOC+NOx sensor offers a solution for two complete sensors on a single chip, facilitating design-in and cutting design costs. By relying on Sensirion’s proven MOXSens® Technology, the sensor’s unmatched robustness against contamination by siloxanes results in outstanding long-term stability in terms of sensitivity and response time. The two sensor signals processed by Sensirion’s powerful Gas Index Algorithm can be used directly to automatically trigger the removal of indoor air gas pollutants by air treatment devices without the need for user-device interaction. This sensor solution is thus well-suited to the constant monitoring of VOC and NOx levels, including potentially harmful events that are imperceptible to humans. Furthermore, automatic control of air treatment devices based on the SGP41’s signals helps to save energy by turning them off once the VOC and/or NOx events have received attention. 

#Sensirion #Pauto #HVAC #Environment 

Flame ionisation detection (FID).

A new, highly innovative, portable gas analyser, the SOLAR XPLORE, has been launched by the Signal Group. 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 fixed 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 fixed analysers and built it into the new instrument. This will be an enormous benefit 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.
“Secondly, the new analyser can be fitted 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!”

@GasAnalysers @_Enviro_News #PAuto #VOC

Office safety with COVID-19.

Tenants of serviced offices are starting to ask questions about environmental monitoring in their office spaces. Temperature, humidity, CO2 and ventilation levels are known to have an impact on comfort and even productivity of occupants of an office building. Add in safety concerns about COVID-19 transmission in the workplace and this becomes a trend that Facilities Managers need to be paying attention to now.

Yodit Stanton, CEO of Opensensors.com, has long been championing the use of data to optimise facilities management. She says “Leveraging office utilisation and environmental data is a way to efficiently aid office reopening and manage employees returning to work following COVID-19 lockdown.”

There are many other use cases for monitoring internal air quality: efficient management of reopening offices and reducing the likelihood of COVID-19 transmission is a high priority for the short to medium term. Over the longer term, efficiency is a key consideration for both Facilities Managers and workspace tenants and it’s an area where data monitoring and reporting will continue to grow in relevancy.

Internal Air Quality, or IAQ, depends on what’s going on outside the building as much as what’s going on inside. To optimise ventilation and filtration, you need to know what’s coming in from outside. For example, it’s a waste of energy to increase ventilation by circulating air from outside the building if that results in an overall increase in the polluted air inside. Equally, if you aren’t accurately monitoring air quality within the building (particulates, NO2, VOC’s temperature, humidity and CO2 are most relevant for office spaces) you run the risk of running HVAC systems when they’re not needed.

Optimising usage of the HVAC system pays dividends in many ways. Running the ventilation system when it’s not needed uses more energy. Understanding where in a building the problem areas are, means corrective measures can be applied in those areas only, rather than across the entire building and potentially wasting energy. A low carbon approach is increasingly important for businesses and individuals in our efforts to be conscious energy consumers. Wasted energy also means a direct increase in energy costs. There are also the less obvious costs that build up over time for HVAC maintenance. Greater usage leads to more frequent replacement of filtration equipment, for example, if wear on the air handling units can be reduced by increasing efficiency, this will lead to lower maintenance costs.

David Johnson, Sales Director at South Coast Science believes that with the increased availability of low-cost environmental sensors, the demand for real-time internal air quality monitoring will increase. He says “Because air is pervasive and always moving into and out of the building, to operate HVAC efficiently you need to monitor indoor air quality in real-time and with a high degree of accuracy. To do this, you must also understand the impact of what is coming in from outside. The two are very much linked and this is why we are developing both solutions for building managers and landlords to understand the effect this has on indoor air quality”.

Low cost sensors for environmental monitoring provide a solution for gathering the data needed to optimise systems, realise cost benefits and support energy efficiency in the workplace. South Coast Science is continuing to develop air quality monitoring systems that provide accurate and real-time data both inside and outside the building. When used in combination with occupancy sensors and a visual reporting dashboard, as offered by OpenSensors, a Facilities Manager can easily take action on the data, meet internal air quality targets and provide the evidence to their tenants.

@OpenSensorsIO #SouthCoast #HVAC #BAC

Robotics aid safety in oil & gas.

Throughout unmanned facilities within the oil and gas industry, a human presence is generally still needed for regular inspection work, so deploying Ex certified robots (ATEX and IECEx Zone 1) incorporated with the ION Science Falco, can have a significant positive impact on safety by minimising worker field trips, which in turn reduces operating costs.

ION Science’s Falco VOC (volatile organic compound) monitor boasts fast response times and several innovative design features. The instrument’s typhoon technology prevents condensation forming on the sensor making it ideal for use in high humidity and harsh weather conditions.

Ian Peerless, Operations Director at ExRobotics comments: “Our robots are used in the oil and gas industry mainly for first response, fugitive emission and preventative maintenance. The introduction of more stringent fugitive emission regulations and the subsequent opening up of new markets prompted the need for a fixed gas detection instrument that could be incorporated into our remotely operated ExR-1 robot.

“The ION Science Falco VOC monitor was recommended by a significant player in the oil industry who conducted extensive performance tests and trials at a large refinery where the Falco came out on top. When ExRobotics did testing of its own, we also found the detector to be robust and reliable.”

The ExRobotics ExR-1 robot is equipped with camera’s for visual inspection, microphones for sound monitoring and the Falco gas detector for leak detection. It sends an alarm to the control room if a leak is detected.

ExR-1 with Falco navigates autonomously through installations and find its way back to its docking station to recharge. This means that inspectors and operators can reduce their visits to remote or hazardous locations, greatly improving their work safety.

@ionscience @ExRobotics @elhcomms #PAuto #Oil

Fighting arson.

Handheld, portable photoionisation detectors help emergency services, fire and rescue to detect volatile organic compounds from ignitable liquids

In the on-going fight against arson-related incidents, Merseyside Fire & Rescue Service (GB) is using TigerLT photoionisation detectors (PIDs) from Ion Science to detect volatile organic compounds (VOCs) from ignitable liquids that have been used in the development of a fire.

Supplied by Ion Science’s local distributor, Shawcity, the handheld, portable TigerLT PID instruments have helped reduce costs and increase quality by preventing non-contaminated samples being sent for lab analysis.

A long-standing user of Ion Science PID instruments for more than 10 years, Merseyside Fire & Rescue Service originally used the company’s PID FirstCheck 1000+. When these became obsolete, they purchased two Tiger PIDs and have recently added two TigerLT units to their growing portfolio of Ion Science VOC monitors.

Merseyside Fire & Rescue Service’s team of four fire investigators are each issued with a personal Ion Science Tiger or TigerLT for fire investigation purposes.

Over a five-year period, Merseyside Fire & Rescue Service attended more than 1,500 incidents where fires were deliberately set using ignitable liquids. This is an average of six incidents every week.

Ian Mullen, Station Manager at Merseyside Fire & Rescue Service, Incident Investigation, comments: “Ion Science Tiger PIDs are a robust and reliable product for detecting VOCs during fire investigations.

“The instruments are a tool to assist in the detection of the presence of ignitable liquids. This also allows the Police CSI to take a sample from a ‘confirmed’ area of post-fire ignitable liquids which can be sent for lab analysis.

“This prevents non-contaminated samples being processed which reduces costs and increases the quality of positive hits for ignitable liquids.

“The Tiger PIDs perform well. Our fire investigators take an instrument to each and every one of the 300 plus incidents they attend each year,” he adds. “The unit will be deployed if ignitable liquids are suspected to have been a factor in the incident.”

The TigerLT offers worldwide Intrinsic Safety (IS) certification for use in potentially explosive atmospheres. It is a streamlined, low cost version of the well proven Tiger PID model.

Like all Ion Science PID instruments, the TigerLT incorporates the company’s advanced patented fence electrode technology. This unique triple- electrode technology ensures increased resistance to humidity and contamination for ultimate reliability and accuracy in the field.

With a detection range of 0 - 5,000 ppm, with a 0.1 ppm minimum sensitivity, Ion Science’s TigerLT also offers an unrivalled industry response time of just two seconds and equally quick clear down.

Both simple to operate and service, the TigerLT offers easy access to the lamp and sensor. The intrinsically safe instrument also meets ATEX, IECEx, UL and CSA standards.

It features long life rechargeable Li-ion batteries that can be safely replaced in hazardous environments and give up to 24 hours usage. Fast battery charging allows the instrument to be fully charged in 6.5 hours, while eight hours of use can be achieved from 1.5 hours of charging time.

TigerLT features a protective, removable boot for harsh environments, while a large, clear back-lit display allows for easy viewing in any light condition. It is IP65 rated against water ingress. An integrated torch helps direct the instrument’s probe into dimly lit areas. Other features include a loud 95 dB audible alarm, multiple language support and is IP65 rated against water ingress.

Ian comments: “The service from Ion Science and its distributor Shawcity has always been very good. We can’t fault the Tiger PIDs which offer a number of practical features for fire investigation, a short power up time, rubber boot, bright colour for ease of visibility and robust design.”

@ionscience @shawcitylimited @elhcomms #PAuto #Safety #Britain

Odour control in Guernsey.

Handheld PID instrument used on outlets of odour control system to assess utilisation of carbon media filter.

Guernsey’s States Works is using an Ion Science  handheld photoionisation detector (PID) to measure volatile organic compounds (VOCs) being emitted from an odour control system installed at Guernsey’s waste transfer station. Supplied by distributor Shawcity and chosen for its portability, high detection rates and range of response factors, the instrument is helping to prevent the escape of malodours into the surrounding environment.

States Works is using the Ion Science Tiger^LT PID instrument at three outlet ports on each of the transfer station’s odour control carbon filter vessels where it is monitoring VOCs being emitted at quarter, half and three quarters depths of the carbon filter media. It enables States Works to estimate usage of the media so they can be replaced to ensure malodours are not being released into the air.

Yannic Bearder, Senior Environmental Monitoring Technician at States Works, comments: “Part of our role is to ensure that the new waste transfer station and old landfill sites are not affecting the environment or impacting the local community.

“The company that installed the odour control system at the waste transfer station recommended we use Ion Science’s Tiger PID to measure VOCs from the three outlet ports to help assess utilisation of the carbon filter media.”

This instrument is being used by States Works for weekly monitoring of VOCs with the data downloaded manually via USB and logged onto a spreadsheet.

Tiger^LT, which offers worldwide Intrinsic Safety (IS) certification for use in potentially explosive atmospheres, is a streamlined, low cost version of Ion Science’s well proven Tiger PID model.

Like all Ion Science PID instruments, the Tiger^LT incorporates the company’s PID technology with advanced patented fence electrode system. This three-electrode format ensures increased resistance to humidity and contamination for ultimate reliability and accuracy in the field.

With a detection range of 0.1 - 5,000 ppm utilising a standard two-point calibration protocol, Ion Science’s robust TigerLT also offers an unrivalled industry response time of just two seconds and equally quick clear down.

Both simple to operate and service, the Tiger^LT offers easy access to the lamp and sensor with batteries that can be safely replaced in hazardous environments. The intrinsically safe instrument also meets ATEX, IECEx, UL and CSA standards.

Yannic continues: “Ion Science’s distributor Shawcity recommended the Ion Science Tiger^LT VOC monitor as it met our requirement for portability, high detection rates and range of response factors. Although the instrument is only being used outdoors for short periods of time, it also has a reassuringly rugged design.”

The Tiger^LT six pin MiniPID detector cell with anti-contamination design dramatically extends run time in the field. Low cost filters and lamps can be easily changed in minutes, minimising downtime.

It features long life rechargeable Li-ion batteries which give up to 24 hours usage. Fast battery charging allows the instrument to be fully charged in 6.5 hours, while eight hours of use can be achieved from 1.5 hours of charging time.

It features a protective, removable boot for harsh environments while a large, clear back-lit display allows for easy viewing in any light condition. It is IP 65 rated against water ingress. An integrated torch is designed for directing the instrument’s probe into dimly lit areas. Other features include a loud 95 dB audible alarm and multiple language support. Ready to use, straight out of the box, the instrument does not require complicated set up procedures via a PC to perform basic functions.

@ionscience @StatesWorks #Enviornment #Guernesy

Successful VOC detection.

Texas-based Lone Star Hazmat Response is using a handheld Tiger^LT volatile organic compound (VOC) monitor from Ion Science to identify the presence of potentially harmful VOCs at hazardous materials incidents. Chosen for its ease of use, quick start and humidity resistant design, the entry-level photoionisation detector (PID) is helping the emergency spill and land remediation specialist to increase efficiencies by quickly and accurately determining the level of protection required by first responders.

For more than 15 years, Lone Star Hazmat Response has excelled at providing industry-leading emergency spill response as well as safe and effective environmental remediation services. The company has steadily added to its capabilities and now maintains four strategically located rapid response centres in eastern Texas, which allows it to deploy rapidly whenever an emergency requires its services.

The Lone Star Hazmat Response team, which comprises hazmat specialists and incident commanders, works closely with first responders including firefighters, police and paramedics to provide critical support across a range of hazardous materials incidents. These include roadside emergency spills involving oil, diesel fuel and gasoline, product transfer for situations where fluid must be moved from a compromised vehicle to another or in the unfortunate event of an oil, gas or salt water release.

As part of its commitment to ensuring the safety of first responders, Lone Star Hazmat Response is using the Ion Science Tiger^LT PID to identify the presence of potentially harmful VOCs on scene and advise on the level of protection required.

Lone Star Hazmat Response uses PID instruments to quickly identify the presence of gases and vapours. Monitoring the ambient air for parts per million (ppm) and parts per billion (ppb) concentrations of VOCs allows the company to quickly evaluate the danger and determine if leaking fugitive gases are toxic.

Richard Lenius, General Manager at Lone Star Hazmat Response comments: “After meeting Ion Science at the TCEQ trade conference and learning more about its products, we chose the 
Tiger^LT handheld PID as it met our cost and functionality requirements. During testing the instrument proved extremely easy to operate and ready to use immediately after powering on. As we get called out to all kinds of environments, I was also particularly drawn to the instrument’s humidity resistance and anti-contamination design especially as our other PIDs had failed on humid days.”

This unit, which offers worldwide Intrinsic Safety (IS) certification for use in potentially explosive atmospheres, is a streamlined, low cost version of Ion Science’s well proven Tiger PID model.

Like all Ion Science PID instruments, the Tiger^LT incorporates the company’s market-leading PID technology with advanced patented fence electrode system. This three- electrode format ensures increased resistance to humidity and contamination for ultimate reliability and accuracy in the field.

With a detection range of 0.1 - 5,000 ppm utilising a standard two-point calibration protocol, Ion Science’s robust TigerLT also offers an unrivalled industry response time of just two seconds and equally quick clear down.

Although a PID is not specific in terms of gas selection, it offers a continuous and almost instant response rate enabling first responders to carry out their duties secure in the knowledge that their exposure to hazardous chemicals is limited.

“By its very nature, emergency response work carries an element of the unknown which can sometimes hinder our ability to quickly provide the vital information needed by first responders to ensure their own protection as well as that of bystanders and the wider community,” Richard adds. “Even in the most challenging environments, a single PID like the Ion Science Tiger^LT gives fast, accurate and reliable results and a true reading rather than a percentage of mixed air.”

Both simple to operate and service, the Tiger^LT offers easy access to the lamp and sensor with batteries that can be safely replaced in hazardous environments. The intrinsically safe instrument also meets ATEX, IECEx, UL and CSA standards.

The key advantage over other similar, low cost handheld PID instruments is its market leading accuracy and run time due to is anti-contamination and humidity resistant design. Another attribute is its global Intrinsic Safety certification. Although the accreditation process can differ from country to country, the TigerLT can be used in explosive hazardous areas such as within petrochemical plants that are located anywhere in the world.

The Tiger^LT six pin MiniPID detector cell with anti-contamination design dramatically extends run time in the field. Low cost filters and lamps can be easily changed in minutes, minimising downtime.

It features long life rechargeable Li-ion batteries which give up to 24 hours usage. Fast battery charging allows the instrument to be fully charged in 6.5 hours, while eight hours of use can be achieved from 1.5 hours of charging time.

Richard continues: “The clear, back lit display with large font enables those members of the team that require glasses to see air readings better than the other PIDs we have used. It is
also quick and ready for use in comparison. One of the features that we particularly like is the quick button for zeroing the air.”

Tiger^LT features a protective, removable boot for harsh environments while a large, clear back-lit display allows for easy viewing in any light condition. It is IP 65 rated against water ingress. An integrated torch is designed for directing the instrument’s probe into dimly lit areas. Other features include a loud 95 dB audible alarm and multiple language support.

Ready to use, straight out of the box, the Tiger^LT does not require complicated set up procedures via a PC to perform basic functions.

Richard concludes: “Overall we have been really pleased with the TigerLT and the service provided by Ion Science. We would definitely recommend the instrument to other emergency hazmat response companies. In fact, I have already demonstrated the TigerLT to multiple fire department hazmat teams.”

#PAuto @ionscience @elhcomms @Hazmat_Lonestar

Filter tubes offer.

For a limited time, Ion Science is offering 50 free benzene pre-filter tubes instead of the normal ten when customers purchase a handheld Tiger Select volatile organic compound (VOC) detector.  Order today to take advantage of this exclusive offer, quote SB-1119 when placing an order.

ION Science’s benzene pre-filter tubes ensure rapid detection and selective measurement of benzene when attached to the company’s well proven handheld Tiger Select photoionisation detector (PID) via a tube holder assembly. The pre-filter tubes are typically available as a pack of ten.

The unit offers fast, accurate detection of total aromatic compounds (TACs) and benzene. Utilising the high output Ion Science 10.0 eV detection system, a reading for TACs is seen immediately on start-up. Where aromatics are detected, a pre-filter tube can be easily attached to ensure fast detection and selective measurement of benzene.

It continues to display real-time data, ensuring the final reading represents the full value of actual benzene present, Benzene concentrations are displayed down to parts per billion (ppb) levels.

The instrument is capable of providing 15-minute short-term exposure limits (STELs) and 8-hour time-weighted averages (TWAs) for TACs. A 10.6eV lamp can be easily installed for the detection of a wide range of VOCs.

In addition, the market-leading MiniPID 2 sensor incorporates both humidity resistant technology and anti-contamination design for extended operation in difficult working environments.

Customers just need to quote code SB-1119 when placing an order via orders@ionscience.com.

 #PAuto #VOC @ionscience @elhcomms

Factors affecting the choice of VOC sensor.

VOCs (Volatile Organic Compounds) perform many vital roles as fuels, solvents, cleaners, feedstock, sterilants etc. However, they can be harmful to health and the environment, so it is often necessary to monitor their concentration. By definition, organic compounds contain the element carbon, and exhibit similar chemical properties, which is advantageous from a monitoring perspective.

These properties unfortunately vary widely between the many thousands of different VOCs, so in the following article Arthur Burnley, Sales and Marketing Director of sensor manufacturer Alphasense, explains the factors affecting the choice of sensor – for both end-users and manufacturers of monitoring instruments. Arthur also discusses the key questions that must be addressed, but first it is important to be aware of the technologies currently available.

--> VOC Measurement Technologies What is the main application?
This is the most important consideration because it impacts the choice of technology. For example, the ability to measure a specific VOC may be required, and this would rule out many of the technologies if other interfering VOCs are likely to be present. Similarly, whilst the cost might be attractive, the potential presence of certain inorganic gases may mean that Metal Oxide sensors are unsuitable. However, in applications such as process monitoring the identity of other gases may be known so the response of a specific type of sensor may be solely attributable to the VOC of interest.

Regulatory monitoring of VOCs in applications such as industrial stack emissions and ambient air quality necessitate certain technologies such as GC/MS and FTIR. However, these technologies are less well suited to applications such as leak detection, surveys, workplace safety, personal safety, Hazmat etc due to cost, power requirements and portability. The most popular technologies for these applications are electrochemical, metal oxide and PID, and by offering all three technologies, Alphasense is able to recommend the most appropriate technology for these applications, taking into account a wide variety of factors such as:

• Range
• Speed of response
• Specificity
• Accuracy
• Interferences
• Maintenance requirements
• Longevity
• Cost

Electrochemical VOC sensors
With resolution from 10 to 50 ppb, electrochemical cells are low cost, low power, compact sensors. Electrochemical sensors need to be optimised for the target VOC because each VOC requires a different ideal bias voltage for best sensitivity. Also, electrochemical cells respond in about 25 seconds, in comparison with 1-2 seconds for PIDs. Nevertheless, electrochemical sensors are suitable for some applications, where cost is important and performance characteristics are known. For example, Alphasense has developed an electrochemical Ethylene Oxide sensor for applications including fumigation of certain agricultural products and sterilisation of medical equipment.

Metal Oxide (MOS) VOC sensors
Metal oxide sensors are compact and low cost but require more power than electrochemical sensors. Humidity sensitivity and baseline drift are all characteristics of traditional n-type MOS sensors, but Alphasense p-type metal oxide gas sensors have more stable baselines and very low humidity sensitivity. MOS are not as sensitive at low concentrations, compared with PIDs. MOS sensors also respond to high concentrations of some inorganic gases such as NO, NO2 and CO. MOS may be a more suitable technology than PID in applications requiring the measurement of halogenated VOCs such as CFCs.

PhotoIonisation (PID) VOC sensors
PIDs respond to most VOCs except for small hydrocarbons such as methane, and for some halogenated compounds. Each VOC has a characteristic ionisation potential and the peak photon energy generated in a detector depends on the PID lamp used. For example, a Xenon lamp = 9.6 eV, a Krypton lamp = 10.6 eV and an Argon lamp = 11.7 eV. Hence, the use of an argon lamp provides the largest detection range of VOCs, whereas a Xenon lamp can increase selectivity.

Clearly, the choice of lamp is dictated by the likely VOCs to be measured, lamp lifetime considerations, and the sensitivity and level of selectivity required.
The Xenon lamp (9.6 eV) is suitable for many aromatics and unsaturated VOCs containing at least 6 carbon atoms (C6+). For example, this lamp is commonly used for the selective detection of compounds such as BTEX (Benzene, Toluene Ethyl Benzene and Xylenes).
The Krypton lamp (10.6 eV) detects most non-halogenated C2, most C3 and C4+ VOCs. Among Alphasense customers, the Krypton lamp is most popular because of its high sensitivity and longest lifetime: these lamps can operate for up to 10,000 hours. A filtered Krypton lamp, operating at 10.0eV is the best choice for BTEX due to its higher intensity than the 9.6eV lamp.

The Argon lamp (11.7eV) can measure halogenated VOCs, but has a much shorter lifetime.

Users of PID instruments should be aware of the variety of response between different VOCs. Manufacturers of PID sensors provide a comprehensive list of response factors. These figures represent the response of a lamp to a specific VOC relative to its response to a calibration gas – generally isobutylene. So, if the response of a PID to a particular VOC is eight times smaller than it is for the same concentration of isobutylene, then the response factor would be 8. Similarly, if the response factor for a particular VOC is 0.5, the PID response is twice that for isobutylene at the same concentration. Many instrument manufacturers build in response factors to enable the quantification of a specific gas when measured in isolation.

Summary
This article highlights that different sensor technologies are better suited to some applications and careful consideration should be given before making a choice, through discussions with manufacturers such as Alphasense.

In addition to the technical considerations outlined above, it is also vitally important to choose the right supplier. For end-users, the effectiveness of their work relies on the accuracy and reliability of their monitoring equipment, and for instrument manufacturers, their brand reputation is built on the quality and reliability of their equipment. It is therefore important to seek suppliers with proven levels of quality and reliability.

For sensor manufacturers, quality management procedures should extend beyond the requirements of ISO 9001. All sensors should undergo a test and validation procedure ensuring complete stabilisation prior to characterisation. Test data should be stored for each and every sensor, including sensitivity, time of response and recovery, and zero off-set. This is important because some manufacturers simply record the average test data for a batch, or record test data for a sample from a batch. This increases levels of uncertainty and prevents traceability.

The choice of VOC sensor therefore starts with a discussion about the potential application and suitable technology, and ends with the delivery of an appropriate sensor with traceable test and validation data.

 #Alphasense #PAuto #Environment @_Enviro_News 

Gas table.

A free gas table is being offered to Ion Science customers who register their well proven Tiger and Tiger Select handheld volatile organic compound (VOC) detectors online to receive the company’s industry-beating five-year extended warranty.

Customers will benefit from the five-year extended warranty by registering their Ion Science Tiger or Tiger Select Photoionisation Detector (PID) within one month of purchase via this online form. A confirmation email advises that the extended warranty period has been activated and processed.

Ion Science’s VOC Gas Table provides information on a wide range of potentially hazardous gases and vapours, with advice on the most suitable instrument for the application. It also contains vital detail on PID response factors.

Duncan Johns, Managing Director at Ion Science comments: “Ion Science’s Tiger and Tiger Select handheld PIDs have established an unrivalled reputation for high performance, durability and reliability. The five-year extended warranty shows that we trust our products and have confidence in their longevity.

“Instrument registration takes minutes with those customers being the first to receive product updates and notification of special offers. It also ensures a quick, hassle-free repair in the event of a service issue.”

Ion Science provides a full calibration, maintenance and repair service for all its instruments. The company’s skilled engineers identify and resolve issues quickly for a fast turnaround to ensure instruments are operational as soon as possible.

Taking advantage of the extended warranty is an effective way for customers to have peace of mind for a significantly longer period of time, at no extra expense.

@ionscience #PAuto #VOC 

Personal VOC monitor.

Ion Science has upgraded its well proven Cub personal volatile organic compound (VOC) detector. For improved worker and plant safety, the cost effective instrument now features an even more robust design, new PC software and louder 95dB sounder alarm for use in noisy environments.

Extremely comfortable to wear and easy to use, Ion Science’s Cub is the world’s smallest, lightest and most sensitive personal photoionisation detector (PID). Boasting market-leading anti-contamination technology and humidity resistant operation, the Cub is ideal for the protection of workers in chemical, petrochemical, oil & gas and pharmaceutical processing facilities, as well as health & safety, hazardous materials, first response and environmental applications.
As part of this latest upgrade, the Cub offers a more rugged and robust design ensuring best possible performance in the toughest environments, including increased resistance to chemical exposure during decontamination procedures.

The new sound chamber has been developed to maximise noise output, allowing the Cub to reach over 95dB. Updated within the latest firmware V0.0.80, the alarm sound produces alternating frequencies which enables it to be more easily recognised in noisy environments.

For applications where noise levels are quieter, it is possible to reduce the sound using the volume control within the Cub PC.

The updated Cub PC software offers a series of enhancements including the option to carry out bump tests using the selected gas or calibration gas, new gas table, the ability to send configurations to multiple Cubs at once and Cub PC lock with restricted user version.

The instrument has a dynamic range of 1 parts per billion (ppb) to 5000 parts per million (ppm) sensitivity - giving an early warning of exposure to hazardous gases, including benzene.

When worker exposure exceeds pre-set limits the Cub’s upgraded audible, vibrating and flashing LED alarms provides an alert to the gases present. Readings are displayed on a bright, back-lit LCD display with selectable data logging time. An independent alarm sounds to the employee but also records a quantifiable measure of exposure to VOCs.

The Cub is available as a ppm instrument with 10.6 eV lamp for accurate detection of a wide range of VOCs to ppm levels. The CubTAC ppm variant with 10.0 eV lamp accurately detects total aromatic compounds (TACs), including benzene, down to ppb levels. It can be upgraded to ppb sensitivity quickly and easily via Ion Science’s micro website. Docking stations are available for USB communication, charging and calibrating the Cub.

The instrument’s patented MiniPID sensor technology has been independently verified as best performing for speed, accuracy and humidity resistant operation. The Cub’s innovative anti-contamination and patented Fence Electrode Technology provide extended run time in the most challenging environments.

It meets ATEX, IECEx standards and responds to hazardous gases and vapours in less than 13 seconds. A two-year warranty is available when the Cub is registered online.

@ionscience  #PAuto #Safety

Fire investigation kit.

The world’s first fire investigation kit featuring the well-proven, handheld Tiger or TigerLT photoionisation detector (PID) for the reliable detection of volatile organic compounds (VOCs) at sites of suspected arson-related incidents has been launched by Ion Science.

Easy to use with minimal training, Ion Science’s fire investigation kit includes essential accessories for the fast, accurate detection of VOCs, all contained within a rugged carry case. In addition to either a Tiger or TigerLT PID instrument, it comprises a one metre flexi-probe, AA Tiger battery pack, charging cradle, vehicle charge adaptor, exhaust barb, bump test pen, quick start guide and PTFE filters.

In suspected arson cases, it is part of the investigation to prove that there is no other cause of fire. The Ion Science fire investigation kit can be used to detect hydrocarbon compounds such as those found in petrol, alkanes and cycloalkanes. Fire investigators including the police, consultants and private investigators acting on behalf of insurance companies, will search for every type of fire accelerant such as grill lighters, lighter fuel, liquid glue and cleaning agents.

Both the Ion Science Tiger and TigerLT PIDs are perfect for arson investigation. The instruments have a rugged design, are ready to use within seconds, easy to operate with gloves and can be cleaned quickly with a wet cloth. Plus the filters are simple to change.

In the aftermath of a fire significant values can already be 1-20 parts per million (ppm). Depending on the period of time between the occurrence of the fire and the examination, potential VOC gases might have partially disappeared. As a result, values always vary and sometimes the measured values can reach 100 ppm or more.

The extinguishing foam used by fire teams contains proteins and other hydrocarbon compounds which can produce falsified results and make usable measurements difficult.

Fire investigators often take photographs whilst using the Ion Science Tiger or TigerLT and document several values at the same time. If high quantities of VOCs are detected, they will go on to take samples for analysis by an authorised laboratory.

A robust handheld PID, the popular Tiger accurately offers 0.1 ppm sensitivity and reliably detects gases down to ultra-low parts per billion (ppb) levels and up to 20,000 ppm. The Tiger is fully upgradeable in the field so lower cost instruments can be purchased with the option of adding functionality.

Ion Science’s TigerLT PID is a streamlined, low cost version of the Tiger with a detection range up to 5,000 ppm and push to log data log option.
Both models incorporate Ion Science’s market-leading PID technology with patented fence electrode system. The advanced three-electrode format ensures increased resistance to humidity and contamination for ultimate reliability and accuracy in the field, as well as reduced drift issues and extended run time.

A compact, ergonomic design makes the Tiger VOC detectors extremely easy to use in the field. A large, clear back-lit display allows for easy viewing in any light condition. An integrated torch is designed for directing the instrument’s probe into dimly lit areas and an illuminated keypad comes on when light is low.

The Tiger models have the fastest response time on the market of just two seconds and can be connected directly to a PC via the USB for quick data download.

Both instruments are intrinsically safe (IS) allowing batteries to be replaced in potentially explosive environments. They meet ATEX, IECEx, North American and Canadian standards and are IP65 rated against water ingress.

Long life rechargeable Li-ion batteries give up to 24 hours usage and can be fully charged in 6.5 hours, while eight hours of use can be achieved from 1.5 hours of charging time. Low cost filters and lamps can be easily changed in minutes.

Other features include a protective, removable boot for harsh environments, loud 95 dB audible alarm and multiple language support. The warranty for both the Tiger and TigerLT can be extended from two to five years when the instruments are registered on line.

@ionscience #PAuto #TandM @elhcomms

VOC sensors.

Alphasense has launched a new sensor for the measurement of VOCs (Volatile Organic Compounds). The new p-type Metal Oxide sensor is a broadband total VOC detector with a range of 0 to 100 ppm (isobutylene) and 10-50 ppb detection limit, depending on the VOC.

“This new class of metal oxide sensor will complement our existing range, which also includes PIDs, offering a lower cost alternative that is unaffected by humidity and has low drift,” comments Alphasense Director Arthur Burnley.

The new VOC sensor will be of particular interest to manufacturers and developers of instruments and monitoring systems for applications such as process monitoring, occupational safety, leak detection and environmental monitoring. Typical VOCs measured by the sensor include solvents, sterilants and petrochemicals.

Explaining the reasons for offering a variety of VOC monitoring technologies, Arthur says: “There are many factors affecting the choice of VOC sensor. These include: target gases, measurement range, sensitivity, power requirement, over gas limit, environmental conditions, response factors, possible interferences and of course, budget. Consequently, there is no one sensor that meets all needs, so we have developed different technologies and different variants for each technology, so that customers can choose the sensor that best meets their requirements.

“However, there is one sensor requirement that is common to all customers, and that is reliability; which is why Alphasense invests heavily in product development and a rigorous automated test and validation system. As a consequence, we are able to boast the lowest warranty returns in the industry.”

 #Alphasense #PAuto