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A new oxygen permeation analyzer with the added capability of testing for relative humidity (RH) has been added to the Ox-Tran 2/28 instrument series from Ametek Mocon. In 2020, the company launched the 2/28 H, a high-throughput oxygen permeation analyzer featuring a unique four-cell capability, patented Coulox Sensor, and fully automated temperature and flow controls. For QA/QC labs performing frequent oxygen transmission rate (OTR) tests, the 2/28 has been shown to reduce testing time, simplify workflow and enable more repeatable results. The 2/28 H was designed for dry testing conditions, with a set relative RH of 0%.

However, some labs need to more closely match environmental conditions or previous testing data when conducting OTR analysis. To better serve these customers, the company expanded its Ox-Tran 2/28 to include the new 2/28 HR model, which allows precise control of RH for the test gas. Both instruments share ease-of-use and automated testing features, including software additions to improve laboratory efficiency. The QC test mode simplifies routine testing for operators, while the conditioning test mode decreases overall testing time. A four-cell capability and a range of specialized accessory cartridge options improve throughput and allow labs to test unique packaging. These unique settings and accessories are said to dramatically increase the efficiency and overall testing capacity of your lab, making it the perfect solution for the busy QC lab supporting production operations.

Said senior product manager for permeation instruments Jeff Jackson, “We developed the HR model at the request of several customers who wanted the high-throughput benefits of the 2/28, but with the added flexibility of humidity testing. The ability to exactly match RH conditions gives our customers more consistent data and better confidence in their results.”

According to Andreas Roos, EMEA sales manager for permeation insruments, the dual cell cartridges were developed for those who perform extensive daily testing, as they help reduce costs while maintaining accurate and repeatable results. “The combination of different types of cartridges combined with the range of 2/28 models really expands the OTR testing capability for our customers.”