Apparatus having a water trap of detectable form, and method

摘要

The invention relates to an apparatus having a water trap. The apparatus has a gas sensor and is designed to pass a flow of sample gas through the water trap (2) and feed it to the gas sensor (3). The water trap (2) is designed to be disconnectably connected to the apparatus. The apparatus has a receiving means for connection to the water trap. The invention is characterised in that the water trap (2) has a radio-frequency marker (5). The apparatus has a radio-frequency sensing device (6) having a sensing range (7) for the radio-frequency marker, which radio-frequency sensing device (6) is designed to sense the radio-frequency marker in the sensing range and to generate a marker signal which represents an item of marker information relating to the radio-frequency marker. The apparatus is designed to be controlled as a function of the marker signal.