A method for operating a gas sampling device for the colorimetric analysis

摘要

A method for operating a gas sampling device for the colorimetric gas analysis with a control and regulating unit (30), a power supply unit (17), a data memory (40), at least one pressure sensor (12, 16), a differential pressure sensor (14) and a laminar flow element (9), wherein, in a measuring operation a method of measuring ambient pressure (32) by means of the at least one pressure sensor (12, 16) and a differential pressure measurement (37) for determining a flow rate (51) and a volume (52) by means of the laminar flow element (9) and of the differential pressure sensor (14) is carried out, wherein in the case of the conversion of the differential pressure value (37) in the volume (52) is used as the correction parameter at least one initial correction parameters k, k (600, 700) and / or at least one current correction parameters k1, k2 (400, 500) are used.