Tiger Optics LLC claims its devices are increasingly sought to monitor gas mixtures and as a result the company is deploying more gas analysers from its HALO product line.

The development signals yet another milestone for Tiger Optics, which holds exclusive rights to multiple, broad-based patents from Princeton University on Continuous Wave Cavity Ring-Down Spectroscopy (CW CRDS).

Tiger analysers detect the presence of fugitive components down to the low parts-per-trillion level in a variety of gases. Over the past decade, CW CRDS has advanced the analysis of many packaged pure gases, including inert gases, reactive gases (toxic gases, corrosives, and hydrides), and rare gases.

Mixed gas products are commonly used in the calibration of chemical instruments, medical and healthcare facilities, laser applications, electronic manufacturing and metal welding. Each application has unique demands of precision in terms of the amounts of blended gases, as well as tolerance for impurities in the mixture.

“Water vapour is a common contaminant that can shorten the useful lifetime of packaged gas mixtures. Our HALO product line is a perfect fit for trace moisture analysis in quality control,” said Lisa Bergson, founder and Chief Executive of Tiger Optics.

The HALO range of analysers from Tiger Optics is distinguished by a number of key features, including fast response, high accuracy, wide detection range, and the capacity to evaluate many base gases. The first HALO, introduced in 2006, was designed to offer the speed, specificity and reliability of the original Tiger tools at approximately half the price and one-quarter the size. The device measures moisture in a range from 2 parts-per-billion to 20 parts-per- million.

In 2007, Tiger unveiled the HALO+, designed to analyse moisture in gases down to ultra-low levels (0.4 ppb to 20 ppm) required in semiconductor fabrication plants. The latest addition, the HALO-500-H2O, permits a facility’s quality control lab to evaluate moisture levels over a very wide 20 ppb-500 ppm range, encompassing expected moisture values in most gas mixtures.

Even under conditions where high moisture samples are followed by sub ppm level samples, the HALO-H2O and HALO-500-H2O can achieve 95% of a reading in less than three minutes, thereby assuring fast, highly accurate measurements and outstanding sample throughput in the lab.