34 AIR MONITORING
The first-of-its-kind lidar-based atmospheric measurement device provides atmospheric, cloud height, and mixing layer data with depolarisation
Vaisala have announced the launch of Vaisala Lidar Ceilometer CL61, an unprecedented lidar ceilometer that improves standard ceilometer reporting by leveraging depolarisation technology, providing more refined and accurate data for greater situational awareness.
“With today’s constantly changing climate, meteorological organisations, environmental protection agencies, and airports need greater ceilometer performance to enable more accurate weather modeling,” said Samuli Hänninen, VP, Products and Technologies, Weather and Environment, Vaisala. “Our state-of-the-art ceilometer breaks through the ceiling in this meteorological technology to deliver high-quality profiling data that provides the insights needed to improve numerical weather prediction (NWP) models, understand icing conditions, and track particles such as smoke, volcanic ash, or sand plumes.”
CL61 leverages Vaisala’s cutting edge weather intelligence technologies to deliver uninterrupted, comprehensive, round-the-clock profiling data, even in the harshest weather conditions, for improved understanding of atmospheric conditions. The data provided by the instrument can be used to correct air quality modeling, provide data verification, and enable nowcasting for safer air travel and operations. CL61 also features enhanced single-lens optics, significantly improving signal-to-noise ratio, to provide high-resolution backscatter profiles — all in a cost-efficient design.
Vaisala Lidar Ceilometer CL61 offers more refined profiling data for deeper insights. The depolarisation measurement capabilities enable accurate liquid/ frozen differentiation, detection of dust, sand, and volcanic ash layers, and the ability to make short-term forecasts of precipitation. CL61 is operative 24/7 in all weather and locations. Scientific research-grade instruments have limitations on conditions (e.g., they typically can only be used when it is not raining), but CL61 is operative 24/7 in all weather, providing constant data availability regardless of prevailing weather conditions, and fills coverage gaps in urban areas. In addition, CL61’s depolarisation measurement provides data enabling the detection of volcanic ash eruptions, which can have significant effects on communities and their economies. CL61 also leverages proven single-lens optics, CL61 can exclusively and reliably detect low-altitude phenomena, such as clouds and shallow aerosol layers.
This unique device also offers cost-efficient pricing. With functionality previously only available in scientific research-grade ceilometers, CL61 is significantly more affordable than devices delivering similar data. Operators will also be please with how easy it is to install and maintain. Using common data formats for easy integration with existing networks, CL61 installs from box to operation in just one hour. Plus, with no consumables and no field calibration required, CL61 is virtually maintenance-free, minimizing the lifetime cost of ownership.
“Today’s meteorological networks need to provide more detailed, accurate, and reliable atmospheric data and insights than ever before,” said Johanna Lentonen, Director, Weather Instruments, Weather and Environment, Vaisala. “The flexible and cost-effective CL61 was designed with these requirements in mind to empower decision-makers in weather, aviation, air quality management, and research institutes to integrate the device into existing networks and establish new networks as well as measurement campaigns.”
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Gas analysis service support deals signed with two major industrial manufacturers in China
Servomex has supported analyser projects for two Chinese industrial giants with service contracts to ensure reliable long-term operation. The deals were struck with Sanmenxia Aoke Chemical Industry Co., Ltd, based in Sanmenxia City, and ABB Engineering Shanghai.
Sanmenxia Aoke Chemical is a major chemical manufacturer which produces intermediates for applications including plastics, rubber, medicines and pesticides. It uses Servomex’s Servotough SpectraXact 2500 photometric gas analysers for process control and analysis.
An industrial manufacturer and research and development center, ABB Engineering Shanghai uses Servomex’s SERVOPRO 4900 Multigas analyzers for continuous emissions monitoring of multiple flue gas components.
Both firms were impressed by the competitive terms of the service plans, and signed up during the analyser sales process. The one-year contracts each cover preventative maintenance for the Servomex systems, with two standard maintenance visits and one breakdown service visit.
Take control of emissions from land reclamation:
Ensure environmental compliance with our all-in-one boundary monitoring solu� on.
Confi gurable solu� on: Noise Dust
Vibra� on VOCs
Wind Speed & Direc� on
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IET JANUARY / FEBRUARY 2021
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Casella Guardian2 After decades of neglect, the result of land pollution has reached a level of significance which is now impossible to ignore. Many sites around the world now pose a major hazard for new construction operations and have created a huge clean-up conundrum. With toxic chemicals and pesticides leading to potentially fatal illnesses and for this reason, careful VOC monitoring is required.
The remediation of
contaminated land sites can prove to be a challenging undertaking; however, effective boundary monitoring solutions can help to mitigate any environmental issues during construction by effective measurements. Casella demonstrates its commitment to reducing environmental
risks with the new Guardian2 site boundary monitor, designed to help site management remain compliant with emission levels, using simultaneous monitoring and reporting of noise, dust, VOC and vibration levels.
The innovative Guardian2 is equipped with photoionization detectors (PID) and measures for VOCs up to 6,000 ppm (parts per million), assessing the emission limits and air quality of an area. The levels need to assessed and continually monitored to ensure the site is safe for operation, and to safeguard the health of the workforce and surrounding area.
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The maintenance scope for each analyser includes status inspection, performance verification, diagnostic data checks and recording, calibration and precision check, and a pre-treatment system check. Operators also receive field analyser training, a calibration certificate, and priority in field service scheduling.
Additionally, remote technical support is provided, with a senior engineer providing telephone support within 12 hours or email support within eight hours. Further customer benefits include free workshop training for two people, and a 10% discount on any spare parts required.
Guangyong Wang Service Manager-China at Servomex said: “These contracts illustrate how Servomex continues to support the operation of our analysers after the point of sale – we believe that service should cover the entire life of your analyser. Our network of service centers ensures global expertise is available at a local level, with a rapid response that covers all your maintenance needs.”
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