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Method and apparatus for calibrating a dissolved oxygen analyzer

  • US 6,330,819 B1
  • Filed: 10/05/1999
  • Issued: 12/18/2001
  • Est. Priority Date: 10/05/1999
  • Status: Expired due to Term
First Claim
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1. A method for calibrating a dissolved oxygen analyzer comprising the steps of:

  • setting a zero point on the analyzer by filling said analyzer with a saturated aqueous solution of an oxidizer that contains 0 ppb oxygen, setting a span point on the analyzer by first filling a sample solution in said analyzer and then flowing a cell current through a Faraday electrode until a quantity of oxygen that is not more than 10 ppb higher than an estimated oxygen content of the sample solution is obtained, and calculating a slope from said zero point and said span point.

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