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What do the error codes on the 4020 analyzer mean?

April 26, 2017analyzer Error mean

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What do the error codes on the 4020 analyzer mean?

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The following is an explanation of the error codes for the self-test: 4020_4080_error_codes.pdf Please note the comment that the preamp results for the self-test are only valid at startup, before the FID has been actuated. It is possible to manually deplete the fuel to the FID, allow it to cool and perform a self-test during run time however.