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Continuous blending for gas analyzer calibration

  • US 20050056079A1
  • Filed: 09/15/2003
  • Published: 03/17/2005
  • Est. Priority Date: 09/15/2003
  • Status: Active Grant
First Claim
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1. A method for calibrating a plurality of gas analyzers, comprising:

  • providing a first gas analyzer that measures a first concentration of a first gas;

    providing a second gas analyzer that measures a second concentration of a second gas;

    providing a span gas that includes a mixture of said first gas and said second gas;

    supplying a calibration mixture to both said first gas analyzer and said second gas analyzer, wherein said calibration mixture includes said span gas and a non-reactive zero gas; and

    varying at least one of a third concentration of said non-reactive zero gas and a fourth concentration of said span gas in said calibration mixture as a function of time.

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