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Understanding Time Delay

Four Main Areas to Inspect

Sampling-UnderstandingTimeDelay (1)Time delay can occur almost anywhere within an analytical instrumentation sampling system. Get this article to review four key areas to inspect for time delay.

In a process analyzer sampling system, there is always a delay between the moment you grab the sample and the time you obtain a reading. This time delay may be longer than you think. Underestimating it can lead to inferior process control. If you’re assuming your time delay is one minute, but in fact it’s two hours, your analyzer readings may no longer be relevant or purposeful.

Time delay is cumulative, accounting for the total amount of time it takes for a sample to travel from the tap in the process line to the analyzer and be analyzed. You want to minimize this delay, with a common goal of one minute or less from the tap to the analyzer reading.

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