Flow measuring arrangement, which has a differential pressure measuring arrangement, wherein the differential pressure measuring arrangement comprises: a differential pressure transducer designed to record the difference between a first fluid pressure and a second fluid pressure of a fluid, and designed to provide a differential pressure measuring signal that depends on the difference between the first fluid pressure et la second fluid pressure; a differential pressure sensor, through which the fluid flows, said sensor comprising a first pressure tapping channel on the high-pressure side and a second pressure tapping channel on the low-pressure side, a first differential pressure line, which is connected to a first pressure input of the differential pressure transducer and to the first pressure tapping channel in order to apply the first fluid pressure to the differential pressure transducer via the fluid; a second differential pressure line, which is connected to a second pressure input of the differential pressure transducer and to the second pressure tapping channel in order to apply the second fluid pressure to the differential pressure transducer via the fluid; at least one temperature sensor which is designed to output a temperature signal, said signal correlating to a temperature of the differential pressure lines (25, 26); and a processing unit designed to process the differential pressure measuring signal and the temperature signal; wherein the processing unit is configured to use the differential pressure measuring signal and the temperature signal to determine a significant correlation between a change in the temperature signal and the differential pressure signal, and to interpret the occurrence of a significant correlation as an indication of a blocked differential pressure line, wherein the evaluation unit is configured to interpret a positive correlation between a change in the temperature signal, on the one hand, which corresponds to a temperature increase, and the differential pressure signal, on the other hand, as an indication of a blockage in the first differential pressure line, wherein the evaluation unit is further configured to determine at least one characteristic parameter of a noise or a fluctuation of the differential pressure measuring signal and to take this parameter into consideration when determining a blockage in the differential pressure line, wherein the difference between the first fluid pressure and the second fluid pressure is a measure for the flow, wherein the evaluation unit is further configured to take into consideration a correlation between the characteristic parameter of a noise or a fluctuation and the flow or the amplitude of the differential pressure measuring signal when determining a blockage in the differential pressure line. a differential pressure transducer designed to record the difference between a first fluid pressure and a second fluid pressure of a fluid, and designed to provide a differential pressure measuring signal that depends on the difference between the first fluid pressure et la second fluid pressure; a differential pressure sensor, through which the fluid flows, said sensor comprising a first pressure tapping channel on the high-pressure side and a second pressure tapping channel on the low-pressure side, a first differential pressure line, which is connected to a first pressure input of the differential pressure transducer and to the first pressure tapping channel in order to apply the first fluid pressure to the differential pressure transducer via the fluid; a second differential pressure line, which is connected to a second pressure input of the differential pressure transducer and to the second pressure tapping channel in order to apply the second fluid pressure to the differential pressure transducer via the fluid; at least one temperature sensor which is designed to output a temperature signal, said signal correlating to a temperature of the differential pressure lines (25, 26); and a processing unit designed to process the differential pressure measuring signal and the temperature signal; wherein the processing unit is configured to use the differential pressure measuring signal and the temperature signal to determine a significant correlation between a change in the temperature signal and the differential pressure signal, and to interpret the occurrence of a significant correlation as an indication of a blocked differential pressure line, wherein the evaluation unit is configured to interpret a positive correlation between a change in the temperature signal, on the one hand, which corresponds to a temperature increase, and the differential pressure signal, on the other hand, as an indication of a blockage in the first differential pressure line, wherein the evaluation unit is further configured to determine at least one characteristic parameter of a noise or a fluctuation of the differential pressure measuring signal and to take this parameter into consideration when determining a blockage in the differential pressure line, wherein the difference between the first fluid pressure and the second fluid pressure is a measure for the flow, wherein the evaluation unit is further configured to take into consideration a correlation between the characteristic parameter of a noise or a fluctuation and the flow or the amplitude of the differential pressure measuring signal when determining a blockage in the differential pressure line.