Gas Analyzer for Measuring the Mercury Content of a Gas
AssigneeSick Maihak GmbH
InventorRolf DISCH
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Abstract
The invention relates to a gas analyzer for measuring the mercury content of a gas having an Hg light source which transmits transmitted light having wavelengths of at least one spectral line of the mercury, a measuring cell in which the gas to be measured is present, a light receiver, an evaluation unit and a test cuvette which can be introduced into the beam path for checking the operability. To provide an improved gas analyzer which can be calibrated in a simple manner as well as a corresponding improved calibration method, provision is made that the test cuvette contains benzol as a test gas.
Claims9
A mercury gas analyzer for measuring the mercury content of a gas having an Hg light source which transmits transmitted light having wavelengths of at least one spectral line of the mercury, a measuring cell including gas containing mercury, a light receiver, an evaluation unit and a test cuvette which can be introduced into the beam path for checking the operability, wherein the test cuvette contains benzol as a test gas.
A method of calibrating a mercury gas analyzer, comprising the steps:
- generating light having wavelengths of at least one Hg spectral line by an Hg light source;
- providing a test cuvette with benzol of a known concentration as a test gas and thus with known calibration values of the test cuvette at the wavelengths of the Hg spectral line;
- inserting the test cuvette into the beam path;
- and
- calibrating the gas analyzer to the known calibration values.
Dependencies are inferred from the claim text.