38 AIR MONITORING


Advanced and rugged enclosure makes PEMS ideal for NRMM and HDV harsh environment real world


emissions monitoring Horiba has launched an advanced rugged enclosure for its versatile OBS-ONE portable emissions measurement system (PEMS), enabling it to be used for the in-service monitoring of real world emissions (RWE) of combustion engine powered non-road mobile machinery (NRMM) in real-life operational and often harsh environments.


Called the OBS-ONE-RE, the enclosure is a feature- rich system in its own right and enables the OBS- ONE – as trusted the world over by leading OEMs of light- and heavy-duty vehicles for establishing real-driving emissions (RDE) and in-service conformity – to be used for monitoring the exhaust gases of machinery such as diggers, quarry vehicles, snowmobiles, inland water vessels and portable power generating sets.


Les Hill, Manager of HORIBA’s Global Product Planning Group and a member of a number of RDE working groups, comments: “In 2016, the European Commission published the EU Stage V legislation for Non-Road Mobile Machinery. Subsequently, in 2019, the in-service monitoring of NRMMs became mandatory, to monitor for discrepancies between engine- under-test emissions established in the laboratory and real-world emissions when the engine is installed in equipment and in use.”


Launched in 2014, HORIBA’s OBS-ONE measures concentration levels of gaseous emissions – specifically carbon monoxide (CO), carbon dioxide (CO2


), total hydrocarbons (THC), nitrogen oxides (NOx ) and nitrogen dioxide (NO2 ) - plus particle number (PN). It also


measures the exhaust flow rate, environmental conditions (atmospheric temperature, humidity and pressure) and GPS data to provide a record of not just the emissions but also the conditions and the location at which the data was captured.


The OBS-ONE-RE features high endurance and reliable springs that protect the OBS-ONE from shock and vibration in all three axes. In addition, the OBS-ONE-RE is weather-proof, has dust filters and has a cooling system that maintains a consistent internal temperature; enabling the OBS-ONE-RE to operate over the range -7 to +40o


C.


Built-in Wi-Fi allows the OBS-ONE-RE to be operated and monitored remotely, enabling the NRMM driver to concentrate on the vehicle or machinery operation.


This rich feature set makes the rugged enclosure the perfect solution for protecting the OBS-ONE from the harsh environments in which many NRMMs, and some HDVs operate and which must now be monitored under industry regulations.


Lewis George, Product Design Engineer of HORIBA UK’s R&D department, comments: “The OBS-ONE-RE is the result of extensive research, development and verification, including testing on the shaker rigs of certified test houses and on various NRMM vehicles, to ensure the product’s durability and robustness. Most importantly, the OBS-ONE maintains a stable response within tolerances appropriate for certification.”


George goes on to explain that HORIBA is already the go-to company for LDV RDE PEMS and for HDV in service monitoring PEMS, adding: “Now we’ve risen to the challenge of taking our trusted and reliable PEMS out into the harshest environments, which will be useful for product development purposes as well meeting the industry’s requirements for in- service monitoring post product launch. Also, our solution offers easy onsite customisation, ensuring monitoring can be performed reliably while ensuring the safety of those operating the OBS-ONE.”


Those developing NRMMs or HDVs likely to be used in harsh environments are encouraged to contact Horiba for further information on the latest RWE regulations, likely changes to regulations in the future and how Horiba’s proven and trusted OBS-ONE and the Rugged Enclosure can help them achieve compliance and de-risk their programmes.


The future of air quality monitoring networks


For More Info, email: email:


“Air pollution and climate change conditions are reaching criticality worldwide at the same time that environmental agencies face budget constraints, and traditional air sensing technologies have reached a crossroads,” GAO also said. “Given the current conditions, we believe that the future of air quality monitoring networks, Air Quality Monitoring 2.0, will consist of installing low-cost and highly-scalable sensors to complement existing regulatory monitoring equipment and fill in the spatial and temporal gaps that exist with the traditional networks. These technologically advanced sensors are significantly less expensive than traditional technologies and will be key to making air quality monitoring globally accessible by removing the steep up-front and operational costs that come with traditional monitoring networks.”


In the United States, the legacy infrastructure traditionally used to measure and manage air quality is timeworn and costly to maintain. The U.S. Government Accountability Office (GAO), for example, released a report in December 2020 highlighting that US air quality monitoring networks have fallen into disrepair due to aging equipment and budgetary constraints. The U.S. is not the only country challenged to maintain funding for air quality monitoring infrastructure - government-funded air pollution initiatives are chronically underfunded globally. Grants from multilateral agencies, such as the World Bank and the United Nations Development Programme, remain critical to building air quality monitoring efforts in the many countries where no funding exists. As government agencies across the world face budget cuts due to the economic impacts of COVID-19 in the coming years, air quality leaders will need to find ways to stretch their monitoring budgets.


For More Info, email: email:


email: For More Info, email: email:


Helping governments in more than 85 cities across more than 50 countries adopt Air Quality Monitoring 2.0, Clarity offers a reliable, low-cost air quality management solution that is purpose-built to complement existing regulatory monitoring networks. Solar-powered and weatherproof, the Clarity Node-S weighs just 1.2 kg and measures air pollutants like fine particulate matter and nitrogen dioxide. Clarity’s monitors can be easily deployed in 10 minutes or less and link to the cloud through native cellular connectivity, allowing them to operate seamlessly with minimal maintenance in any environmental condition. Once installed, customers have direct access to the data collected through API access and the Clarity Dashboard, an intuitive software platform that visualizes and integrates data from existing reference stations and includes advanced features like colocation analysis. The company upholds the highest standards for data and security and ensures that customers retain ownership of all data collected by their Clarity network. Clarity’s sensing-as-a-service model includes a hardware warranty and access to a dedicated customer success team of air quality experts for project and technical support.


To support other cities and government agencies looking to leverage low-cost sensors to expand air quality monitoring coverage in the face of budget cuts, Clarity released a playbook titled “Maximize Your Air Quality Budget in a Post-COVID World: A Guide to Leveraging Low-cost Sensors for Air Quality Monitoring 2.0” available via their website.


IET JANUARY / FEBRUARY 2021 WWW.ENVIROTECH-ONLINE.COM


For More Info, email: email:


For More Info, email: 54252pr@reply-direct.com 53430pr@reply-direct.com Free, expert advice on how


to achieve perfect CEMS results AGT PSG are hosting weekly webinars to teach CEMS operators the importance of reliable sampling technology. CEMS are in a host of locations, but these are usually harsh industrial conditions and often at extreme temperatures. 70% of technical problems with CEMS originate from the sampling process. This series of educational webinars examines these problems and how to overcome them.


The webinars will focus on key topics such as sampling, transportation, and conditioning. The experts at AGT-PSG will discuss how to avoid the most common mistakes, choosing the right components and they will offer practical tips and tricks of the trade to ensure that your investment of time, effort and money is repaid with interest!


AGT-PSG will also highlight solutions and applications to ensure that you can rely on the data provided by your CEMS and never overlook the vital importance of sampling.


The topics change every 2 weeks and registration is via the AGT-PSG website. More information online: ilmt.co/PL/Bo6m


Easily integrated pressure transmitters for


For More Info, email: email:


For More Info, email: email:


OEMs with digital and ratiometric interfaces Thanks to the Chip-in-Oil (CiO) technology developed at Keller, the trend toward miniaturisation is now becoming a reality. In Keller’s Series 4 LC...9 LC pressure transmitters, the special ASIC for signal processing is fitted directly next to the pressure sensor, in the same housing, under oil, and with the exclusion of air. This yields a host of advantages in terms of application: all the key pressure measurement components are now protected against the risks from humidity and condensation. The interior wiring is implemented with short, lightweight bonding wires, while sintered-in pressure-resistant glass leadthroughs feed the transmitter signals out. Together with the high-grade steel housing, they form a Faraday cage around the measuring system, acting as feedthrough capacitors. This makes the CiO technology absolutely RFI resistant up to field strengths of 250 V/m and for frequencies of up to 4 GHz.


Series 4 LC...9 LC pressure transmitters offer two output signals: a ratiometric analogue voltage output and a digital inter-integrated circuit interface (I2C). The ratiometric signal eliminates the need for an expensive voltage reference in the support electronics to the A/D converter, with no additional effort and expense for compensation and calibration. For a voltage supply of 5,0 V, the output signal is specified as 0,5 ... 4,5 V. The transmitters provide constant protection against overvoltage and polarity reversal on all lines up to ±33 VDC.


For years, the I2C interface has been regarded as the serial standard in embedded systems. Up to 128 OEM transmitters in Series 4 LC...9 LC can be addressed successively by one I2C master to call up the current pressure and temperature values from the transmitters (slaves). With an I2C output, the pressure transmitters can operate with a voltage supply of only 2,7…3,6 VDC, and they are ready to supply the current measured values 5 ms after switching on. Appropriate ON/OFF operation and low power consumption make these transmitters ideally suited for mobile applications.


With an analogue output, the transmitters can be used at temperatures of between -40 °C and +150 °C, and with an I2C output the range is from -40 °C to +80 °C. The full scale pressure ranges for the analog version extend from 2 bar to 1’000 bar, and for the digital version from 2 bar to 200 bar. The internal sampling rate offers a very good dynamic range of 2 kHz. Low power consumption during continuous operation is another benefit. In this regard, the digital version requires less than 3 mA, and the analogue version requires about 8 mA.


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


54261pr@reply-direct.com


53541pr@reply-direct.com


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48