- RQ-30 - Contact Free Discharge Measurement with RADAR

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Sommer - RQ-30 - Contact Free Discharge Measurement with RADAR
The RQ-30 system measures the discharge of rivers, streams, canals etc. with innovative contact-free RADAR technology. It's the unique feature of the RQ-30 to capture continuously the surface flow velocity of the water. Together with the water level, which is also measured constantly, this sensor enables an exact discharge measurement and the evaluation of specific discharge situations. Even in case of floods the system works perfectly well because of the non-contact radar technology. There is no damage of the measurement equipement due to bed loads or trees to be expetced. If the flood plains get overflowed too, the discharge can be determined by combining several RQ-30 sensors to one system. The RQ-30 is able to measure from very low water levels up to the maximum possible discharge of a 100-year floodwater or even more. Therefore the RQ-30 is a unique and reliable system to monitore several discharge situations at rivers, torrents, creeks or technical channels.

RQ-30 System - Components

  • RQ-30 discharge sensor: Measures the flow velocity, integration of radar level sensor and calculation of the discharge
  • Radar level sensor
  • Protective casing for both sensors

Examples of Use

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Technical Data

Measuring element / -principle: Radar / Doppler shift

  • Detectable measuring range: 0.30 ... 15 m/s; Resolution: 1 mm/s
  • Operating temperature: -35 ... + 60 °C
  • Power supply: 6 ... 30 V
  • Power consumption: max. 140 mA (standby mode: appr. 1 mA)
  • Protection type: IP 67

For further details please refer to the product leaflet to be downloaded above.

Functions and Advantages

  • Maintenance free
  • No structural construction in the water needed
  • Fully functional even in flood water situation
  • Low power consumption allows solar cell instigation
  • Detection of flow direction
  • Measurement in back water situation
  • Recognition of vegetal invasion
  • Measurement in tide dependent rivers
  • Own measurement interval or externally triggered
  • RQ-30a: analog output 4 to 20 mA
Sommer Messtechnik
Sommer Messtechnik
Strassenhaeuser 27
Koblach , Vorarlberg; 6842

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