Ultrasonic flow meter sonar

for liquidsDN100 - 4"DN80 - 3"

For these cases, ZENNER provides an intelligent solution with its sonar ultrasonic volumetric flow sensor. Ultrasonic volumetric flow sensors have the great advantage that there are no moveable parts in the volume flow. As a result, ultrasonic heat meters are as insensitive possible to deposits in the medium measured and can function silently and almost free from wear. In addition, ultrasonic heat meters can be loaded up to twice the nominal flow, which guarantees reliable measurement and a long service life for the measurement unit. These can be installed in any position, although overhead installation is not permitted. The flow rate of the medium measured is determined using the transit time difference method. To this end, an ultrasonic signal is transmitted, once in the direction of flow and once against the direction of flow. The signal is accelerated in the direction of the volume flow and delayed against the direction of flow. The flow rate can be deduced from the transit time difference measured and from this, in turn, the volume. The volume information is transferred to the heat calculator by means of electronic impulses. One particular performance feature of the ZENNER ultrasonic volumetric flow sensors is the automatic monitoring. The electronic measuring equipment continuously monitors the signals transmitted by the flow sensor in terms of its quality – fouling of the sensors is immediately registered.