Air quality sensor evaluation kit.

The launch of the SEK-SEN66 evaluation kit has been announced by Sensirion. It is designed for easy and cost-effective evaluation of their all-in-one air quality sensor modules, including SEN60, SEN65, and SEN66. The evaluation kit is now available for purchase through their global network of trusted channel partners. 

This evaluation kit is part of Sensirion’s versatile SEN6x family, offering a user-friendly solution for assessing sensor capabilities. The advanced SEN6x modules are equipped with built-in algorithms that manage data processing, enabling device manufacturers to focus on their core competencies and application development. By eliminating the need for costly, time- consuming optimizations, the SEN6x family allows for faster time-to-market and reduced overall cost of ownership. SEN6x modularity

A key feature of the SEN6x series is its modular approach. With a single design-in, multiple product tiers can be easily supported, providing exceptional flexibility and enabling customized solutions for diverse market needs. Whether for particulate matter (PM) measurements or a comprehensive set of air quality parameters—including temperature (T), relative humidity (RH), volatile organic compounds (VOC), nitrogen oxides (NOx), carbon dioxide (CO2), or formaldehyde (HCHO)—the SEN6x offers a scalable, all-encompassing solution.

“The SEK-SEN66 evaluation kit is now available for purchase through Sensirion’s global distribution network, providing the opportunity to test and evaluate the sensors’ extensive capabilities firsthand. Designed to accelerate product development, the evaluation kit is an ideal tool for businesses looking to implement advanced air quality monitoring solutions”, says David Carminati, Product Manager for Environmental Nodes at Sensirion.

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@sensirion #TandM #AirQuality

Real-time measurements in a metals refinery.

Sensmet's continuous metals monitoring technology has been evaluated in a field trial conducted by Metso at its facilities in Pori, Finland. The trial compared Lithium and Sodium measurements by laboratory ICP-OES analysis with the Sensmet µDOES® continuous analyzer, and demonstrated excellent correlation between the two different methods.

Traditionally, hydrometallurgical production processes have relied heavily on regular sampling and laboratory analysis for process control. However, as Sensmet CEO, Dr Toni Laurila explains: "Lab analysis is costly and incurs a significant delay, which means that real-time control of such processes has not hitherto been possible. Importantly, this trial was conducted under field process conditions, and has confirmed the widely held view that our µDOES® continuous metals analyser represents an enormous opportunity for the optimization of lithium production processes."

Comparing µDOES® with lab ICP-OES.
During the trial, samples were taken from a process in which battery-grade lithium hydroxide monohydrate was produced from spodumene concentrate treated by high-temperature conversion in a rotary kiln. The hydrometallurgical technology, developed by Metso, produces battery-grade lithium hydroxide monohydrate by soda pressure leaching. In this application, the analytical performance of the µDOES® analyser was evaluated for the continuous optimization of pressure leaching and conversion leaching.

Over sixty samples were drawn from the process and analysed by a µDOES® continuous analyser and a laboratory ICP-OES. Sodium and lithium concentrations were measured in each sample, and the results showed an excellent degree of correlation between the online instrument and laboratory reference analysis. The calculated R² (coefficient of determination) for the two elements were 0.98 for the lithium comparison and 0.95 for sodium.

"We were impressed by the outcomes of the measurement campaign, conducted in a challenging environment replicating real-life conditions. Despite the rigor, the µDOES® and ICP-OES delivered congruent results," explains Metso's Veli-Matti Järvinen, Vice President – Automation Product Group. "This is significant — we anticipate that the µDOES technology will bring substantial value to the realms of battery metal production and recycling processes when integrated to Metso Courier® HX system."

µDOES® inside.
Metso is a global frontrunner in minerals processing and metals refining, possessing expertise covering the extraction of lithium from brines and pegmatite ores up to battery-grade lithium salts. When it comes to adopting analytical technologies into production processes and automated measurement systems, Metso upholds the most stringent standards for technology reliability.

The Metso evaluation confirmed the exceptional performance and great potential of µDOES® to transform the way Li and Na analyses are conducted in brines. Following the trial, Metso will adopt µDOES® technology in selected Courier® HX systems for Li and Na analysis, and the new systems will be available globally in 2024.

Explaining the importance of the Metso trial, Sensmet CEO, Dr Toni Laurila says: "Previously, we have demonstrated the advantages of µDOES® in battery metal analysis; delivering increased efficiency, lower costs, and improved product quality. However, one of the first questions that every customer asks is: do we have comparison data with laboratory ICP-OES from real processes?

"We are therefore delighted that an industry leader like Metso has performed such a verification and shared these exciting results. The Li and Na comparisons with ICP-OES illustrate the high analytical performance of the µDOES® and the tremendous potential of real-time analysis in brines."

Sensmet's patented µDOES® technology is based on atomic emission spectroscopy. A micro-discharge (electric spark) is created directly inside the aqueous sample, causing a microscopic volume of the fluid surrounding the spark to be flash-heated to 10 000 °C. Molecular species in the micro-discharge are dissociated into atoms, which are excited to their respective higher electronic states. Upon returning to their ground state, these atoms release their excess energy by emitting light at their characteristic wavelengths. The µDOES® measures this atomic emission spectrum to derive quantitative analysis of the metals contained in the sample.

µDOES® is able to continually repeat these measurements 24/7 delivering results with a user-selectable measurement interval of 5 - 30 minutes.

Summarising, Sensmet CEO Toni Laurila commented: "The third-party evaluation shows how µDOES® technology allows operators to consistently produce high-quality, continuous 24/7 measurements, akin to results obtained in a laboratory. This capability is accessible directly at the process plant, avoiding the delays of lab analyses, and exploiting the benefits of real-time process monitoring."

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Evaluation kit for flow sensor.

The LD20 single-use liquid flow sensor series from Sensirion, the expert in flow and environmental sensor technology, is suitable for fast, precise and reliable measurements of the lowest flow rates in biomedical applications. The evaluation kit for the LD20-0600L version is now also available from distributors. The sensor manufacturer thus provides its customers with the sensor quickly and easily for initial evaluations and proof-of-concept prototype tests in small quantities.

The LD20-0600L liquid flow sensor is based on Sensirion’s proven CMOSens® Technology and optimizes costs by simplifying the design without sacrificing easy fluidic, electrical and mechanical connections. Luer lock fittings ensure safe and secure integration into the fluidic line. The straight and unobstructed flow channel design has no moving parts. Medical-grade wetted materials provide outstanding chemical resistance and excellent media compatibility. While it can provide bidirectional measurement of ultra-low flow rates up to 20 ml/h, the sensor can also be used to detect common failure modes such as occlusion, air in line or free flow with unprecedented speed and sensitivity.

Safe, precise, and reliable measurements of the lowest flow rates in a medical environment made easy: the single-use liquid flow sensors of the LD20 series measure the liquid flow rate at the point of interest for more effective patient treatment and improved safety. The intelligent, compact and cost-effective LD20 sensor series is suitable for a wide range of biomedical applications in the field of critical and home care, such as monitoring of ambulatory infusion pumps, ultra-low flow measurements of precious medications in neonatology and pediatrics, or subcutaneous flow measurement, to name but a few. Furthermore, the sensors of the LD20 series enable the development of smart medical devices and meet the needs of global trends such as point-of-care, patient compliance, complex drug administration and wearable designs. These trends are becoming even more important in light of the COVID-19 pandemic, which is increasing the need for future home-care solutions that can be remotely monitored to further substitute today’s IV therapies in a hospital setting

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