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Gas analyzer

  • US 4,958,075 A
  • Filed: 12/14/1989
  • Issued: 09/18/1990
  • Est. Priority Date: 10/09/1987
  • Status: Expired due to Term
First Claim
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1. A system for effecting and monitoring the flow of a gas mixture through a gas analyzer sampling device comprising:

  • a first line for connecting the input of the sampling device to the source of the gases being monitored, pump means, a second line for connecting the output of the sampling device to said pump means, and first and second complementary control means mounted on said sampling unit and operatively connected to said pump means which is operable to keep said pump means from being turned on unless a sampling unit having said first control means is connected to said pump means.

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