Thanks to non-intrusive transducers, costs for installation are low and no operation outage is required. The RISONIC compact system measures and determines the path velocities and computes the flow rate and volume bi-directionally. As such, RISONIC compact features a seamlessly integrated web-interface, which allows for a quick wizard-based configuration e.g. via the WIFI network. Enhanced diagnostic functions support users and provide guidance for setting up a flow measurement with best possible accuracy.