Mobile and contactless discharge / flow measurement using radar sensors

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The RP-30 is used in rivers, streams and open channels and calculates the exact discharge of the body of water through several sectional velocity measurements. Like the RQ-30, this method is based on innovative radar technology including all the advantages of a contactless measuring device.

The Radar Profiler is ideally suited for selective measurement and therefore for project evaluation or control measurements. In contrast to most other measuring devices, it provides reliable values even in flood situations - an extremely interesting situation from a hydrological point of view - and is, therefore, especially used in flooding and natural hazard management.

  • Portable mobile measuring system
  • Simple mounting on cable cranes, bridge railings or tripods
  • Suitable for flood conditions and high flow velocities
  • Contactless radar measuring technology
  • No exposure to floating debris
  • Calculation of discharge with known water level and cross section profile
  • Easy operator controls and handling
  • Remote data transmission via Bluetooth
  • Measuring range from +/- 0.10 to +/- 15 m/s (depending on flow conditions)
Dimensions: 445 mm x 154 mm x 226 mm
Total weight: 6.6 kg (excluding traveler for handrails)
Protection: IP 67
Battery: 12 V / 4.5 Ah (for up to 40 h operating time)
Power consumption: standby 10 mA; active operation 110 mA
Operating temperature: -35... +60 °C
Distance to water surface: 0,50...35 m

AA batteries; sensor stored in flight case;

Data transmission Bluetooth (class 1, coverage up to 200 m)

Velocity measurement  
Measurement range: 0,10...15 m/s (depending on flow conditions)
Accuracy: +/- 0.01 m/s; +/- 1 % FS
Resolution: 1 mm/s
Measurement duration: 5...240 s
Messintervall: 8 sec. ...5h
Measurement frequency: 24 GHz (K-Band)
Radar opening angle: 12°
Distance to water surface: 0,50...130 m
Necessary minimum swell: 3 mm
Internal slope measurement  
Accuracy: +/- 1°
Resolution: +/- 0,1