ASDevices Launches the KA34X Series: A New Standard for Ultra-Trace Oxygen Measurement
Patent-pending purged-cathode coulometric sensor technology delivers industry-best stability, accuracy, and uptime at ppb and ppt detection levels
ASDevices, a global leader in ultra-trace gas analysis technologies, today announced the launch of its KA34X Series trace oxygen analyzers, a new generation of instruments that redefines what is possible in ppb- and ppt-level oxygen measurement. Powered by a patent-pending, purged-cathode, non-depleting coulometric sensor, the KA34X Series delivers true zero stability, automated electrolyte management, and industry-leading reliability, all while dramatically reducing operator intervention and maintenance burden.
At the heart of the KA34X Series is a fundamental rethinking of coulometric oxygen sensing. Conventional designs are plagued by microscopic air leaks around the cathode housing that introduce offsets, drift, and unexplained signal spikes, problems that grow more damaging as detection limits approach ppt levels. ASDevices eliminates this vulnerability entirely with a fully purged cathode shield that creates a controlled barrier, blocking ambient oxygen from reaching the sensing elements. The electrolyte reservoir itself is also purged, preventing oxygen and CO₂ from diffusing into the electrolyte over time. This is a common failure mode in open-reservoir designs, and its elimination is key to achieving true zero stability that competitors simply cannot match.
“The KA34X Series is the product of years of focused R&D on the most persistent challenges in ultra-trace oxygen measurement,” said André Lamontagne, President of ASDevices. “Our customers in semiconductor, specialty gases, hydrogen, and air separation cannot afford drift, downtime, or uncertainty at ppb and ppt levels. With this platform, we have engineered those problems out of the instrument entirely, and our portfolio of patents reflects the depth of that innovation.”
Beyond measurement performance, the KA34X Series sets a new benchmark for low-maintenance operation. An integrated pump and onboard deionized water reservoir automatically maintain optimal electrolyte levels for up to one year of unattended operation, eliminating the weekly checks, manual top-ups, and intervention risk that characterize conventional trace oxygen analyzers. When electrolyte replacement is required, a closed dual-valve drain-and-fill system allows safe, spill-free servicing without removing or exposing the sensor.
For applications requiring the highest calibration confidence, the KA34X Series offers an optional embedded sonic-orifice dilution system that converts a stable ppm reference gas into ultra-precise sub-50 ppb calibration points. This eliminates the extrapolation errors inherent in ppm-based calibration and delivers true-to-process accuracy at the exact concentrations customers measure. The system achieves a dilution precision of less than 0.5%, with ratios available from 1:2 to 1:3500.
“Following our qualification by TSMC and the growing adoption of our gas chromatography platforms in semiconductor fabs worldwide, the demand for a truly reliable ultra-trace oxygen solution has never been higher,” said Frank Zhu, Global VP of Sales at ASDevices. “The KA34X Series completes our continuous quality control suite and gives our semiconductor, hydrogen, and specialty gas customers the confidence they need at every stage of their process, from incoming gas quality through final purity certification.”
The KA34X platform spans six models, the KA341 through KA346, covering measurement ranges from 0 to 10,000 ppm down to an industry-best limit of detection of 45 ppt. This is achieved through a patent-pending multi-sub-cell sensor architecture, where multiple parallel measurement sub-cells work in concert to suppress random noise and signal spikes, dramatically improving signal-to-noise ratio and enabling stable performance at the lowest detection levels. Sample and system integrity is guaranteed by CVProducts’ (an ASDevices division) patented PLSV purged valve technology, which delivers leak-free stream selection with near-zero dead volume.
The KA34X Series is managed by ASDSense CGA software, built on a real-time industrial operating system with built-in system redundancy for 24/7 reliability. The intuitive touchscreen interface supports automated calibration, one month of onboard data logging, remote control, and full firmware upgradability, ensuring the platform evolves alongside customer needs.
The KA34X Series is designed for the most demanding purity applications, including quality control of electronics-grade and UHP gases, air separation, hydrogen and helium purity verification, and specialty gas bottling. The analyzers are compatible with H₂, He, N₂, Ar, and CH₄ sample gases.
“I have been involved in ultra-trace gas analysis for now over 40 years and our team is known for its invention and restless innovation. I have personally used existing technologies that were introduced in the 90s and I understand their limitations None of those technologies were improved since, other than the user interface. This is the first technology breakthrough in this field for decades and we will continue to do R&D in that field for years as we have other innovation that will further improve the performance”. Said Yves Gamache, CEO and CTO.
The KA34X Series is available now. For technical specifications, application support, or to request a demonstration, contact ASDevices at sales@asdevices.com or visit www.asdevices.com.
About ASDevices
ASDevices is an international company specializing in analysis technologies and devices for process and laboratory gases. ASDevices helps organizations overcome their analytical challenges with robust, high-quality solutions. The company’s founders and partners have accumulated over 30 years of innovation in gas chromatography and over 180 patents worldwide. ASDevices owns all the technologies it develops and is the only company in the world to own all key process gas chromatography technologies related to the challenging measurement of fuel-cell grade hydrogen, especially trace sulfur analysis. www.asdevices.com
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Information:
Pascale Demers
Marketing and Communications
pdemers@asdevices.com
+1 514 953-5551
