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One-way measuring element for analyzing gaseous or liquid samples

  • US 5,351,563 A
  • Filed: 04/09/1993
  • Issued: 10/04/1994
  • Est. Priority Date: 06/08/1990
  • Status: Expired due to Term
First Claim
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1. One-way measuring element, comprising a measuring channel with at least one electrochemical or optical sensor located therein, a first opening on one end of said measuring channel for connecting said measuring element to an analyzer, a second opening on the other end of said measuring channel for connecting said measuring element to a sample-taking part, and a first sealing element for said first opening and a second sealing element for said second opening, wherein a buffer tank is located in said measuring element in the area of said first opening, wherein a collecting tank is located in said measuring element in the area of said second opening, wherein said first sealing element has at least three positions:

  • a first position for closing said measuring channel, a second position for connecting said measuring channel to said first opening, and a third position for connecting said measuring channel with said buffer tank, and wherein said second sealing element has at least three positions, a first position for closing said measuring channel, a second position for connecting said measuring channel to said collecting tank, and a third position for connecting said measuring channel to said second opening.

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