ultrasonic transit-time flow meter / for water / open-channel / remote
RISONIC modular



  • Technology:

    ultrasonic transit-time

  • Fluid:

    for water

  • Other characteristics:

    digital, open-channel, remote, maintenance-free, clamp-on

  • Applications:


  • Process temperature:

    Min.: -20 °C (-4 °F)

    Max.: 70 °C (158 °F)


RISONIC modular, a modular measurement system for specific hydroengineering applications, was developed for ultrasonic flow measurements in filled and partially filled pipes and open channels. Whether for penstock monitoring, turbine and pump efficiency measurements or flow measurements in irrigation systems or water supplies, the system’s modular design provides a broad spectrum of applications and measurement setups with up to 20 measuring paths.

In addition, RISONIC modular can be remotely serviced with a variety of diagnostic functions to localize malfunctions quickly and thus reduce down-times. With its user-friendly and intuitive workflow, RISONIC modular requires minimal training.

Product details

Precise flow measurements (in pumped storage power stations in both directions)
Maintenance-free and very durable
Remote access and monitoring with a variety of diagnostic functions
Easy to integrate into process control systems with Modbus TCP+RTU and IEC 60870-5-104
Various setups possible, e.g. with total flow calculations in all measuring segments
Suitable even for complex hydraulic applications and in harsh environments
Compliant with IEC 60041 and ASME PTC 18


Flow measurement
Water balance
Penstock monitoring
Turbine efficiency monitoring
Sediment monitoring


Hydropower plants
Water supplies
Irrigation systems
Cooling water circuits

RISONIC modular includes three system components:

An instrumentation controller that collects the sensor data and, based on these, calculates the exact flow and other measured values