Measurement Techniques & Articles

In managing risk at the plant, measurement of oxygen concentration in process gases is, of course, a matter of necessity. Engineers typically use sampling systems for these measurements. However, samplers do not provide real-time values because it is necessary to extract the process gas, resulting in a time lag between measurement and phenomena. Unfortunately, this lag can hide sudden rises in concentrations of oxygen that may cause explosion. The reality is that sampling systems do not fully provide what is needed for managing risk. Resolving this problem is Yokogawa's safe oxygen measuring solution featuring the TDLS laser gas analyzer. The TDLS can measure process gas directly in 5 seconds or fewer, and can keep your initial and running costs down. And it's highly safe—it has certified conformance to the SIL2 safety level of the IEC61508 international safety standard. Yokogawa's solution has been used in a variety of measurement applications including oxygen concentration in oil refinery hydrocarbon vapors, oxygen concentration control with ethylene oxide reactors, and oxygen concentration in tank headspace gas. Not only is it safe, but it also helps increase manufacturing efficiency.

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