Apparatus for measuring and monitoring gas concentration in test gas, e.g. methane in air, has internal gas feed pipe to sensor in measuring chamber, with axial guide plate separating flow at bottom inlet and bottom outlet

摘要

In apparatus for measuring/monitoring concentration of gas(es) in test gas (1), especially methane in ambient air, with measuring chamber(s) (3), associated and/or enclosed sensor(s) (4) and internal gas feed pipe (5) conveying test gas through inlet(s) (6) to sensor (4) and outlet(s) (7), both openings (6, 7) are at foot of chamber (3) and gas feed pipe has axial guide plate(s) (8) that extend to bottom of measuring chamber and separate openings (6,7) in terms of flow.