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Gas analyzer calibration checking device

  • US 6,969,357 B1
  • Filed: 06/07/2000
  • Issued: 11/29/2005
  • Est. Priority Date: 06/08/1999
  • Status: Expired due to Fees
First Claim
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1. A calibration checking device for use with a gas analyzer, comprising:

  • a calibration checking unit; and

    a calibration checking unit releasing a calibration checking gas of known composition into said gas analyzer; and

    an enabling mechanism actuated by use of said calibration checking unit and enabling operation of said gas analyzer.

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