Measuring device for measurement of physical or chemical measured variables in gas flow loaded with dust, has sensor element and upstream of sensor element, where sensor element partly encloses percussion rod

摘要

The measuring device (8) has a sensor element (24) and an upstream of the sensor element. The sensor element partly encloses a percussion rod (12) and a flange (10) for holding the sensor element. The percussion rod is made of ceramic (13), where the percussion rod is provided at the flange in exchangeable manner.