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Discharge Radar RQ-30 ADMS

 

Well proven RQ-30 discharge measurement with data logger and data transmission in compact format

Non-contact discharge measurement for open rivers and channels. - Comfortable all-in-one system with integrated data logger and 3G/4G communication.

 

Features and advantages

  • Integrated data logger (MRL-Family)
  • Integrated 2G/3G/4G communication
  • Contact free measurement, maintenance free system
  • No structural work is necesary in the water
  • No threat to the system through flooding
  • Low power consumption enables operation using solar cells
  • Recognition of flow direction
  • Measuring range from +/- 0.10 to +/- 15 m/s (depending on the flow conditions)
  • Recognition of hysteresis-effects
  • Measurement in backwater situations
  • Measures even where weed growth prevails and sensor is not affected by turbidity
  • Measurement in tidal waters

 

Fields of application

The RQ-30 ADMS allows a discharge measurement for rivers, streams open channels and canals where continuous monitoring is desired. Besides the advantages of the basic RQ-30 system there is additional data logging as well as data transmission (2G / 3G / 4G) integrated in the RQ-30 ADMS system.

 

Implementation

The sensor can be simply mounted on bridges, on the roofs of closed canals or channel superstructures. It is most ideally installed at measuring spots where continuous discharge measurement is to be done and the data logging as well as the data transmission should be integrated into an all-in-one system.

 

Technical details

General

  • Total weight 19.5 kg
  • Protection class IP 66
  • Battery 24 Ah / 12 V
  • Recommended solar panel (for mid-latitude) 20 W
  • Power consumption active operation 150 mA (total system)
  • Power consumption standby 3 mA (total system)
  • Operating temperature - 20° ... 60° C
  • Mischellaneous over voltage protection, reverse power protection, lightning protection

Waterlevel measurement

  • Measuring range 0 ... 15 m standard version / 0 ... 35 m extended version
  • Resolution 1 mm
  • Accuracy +/- 2 mm
  • Radar frequency 26 GHz (K-Band)
  • Radar opening angle 10°

Velocity measurement

  • Measuring range 0.10 ... 15 m/s (depening on flow conditions)
  • Accuracy +/- 0.01 m/s; +/- 1 % FS
  • Resolution 1 mm/s
  • Direction recognition +/-
  • Measurement duration 5 ... 240 sec.
  • Measurment interval 8 sec. ... 5h
  • Measuring frequency 24 GHz (K-Band)
  • Radar opening angle 12°
  • Distance to water surface 0.50 ... 35 m

Data transmission

  • Supported networks quad band EGSM 850 / 900 / 1800 / 1900 MHz networks
  • Transmission power class 4 (2W) with 850 / 900 MHz; class 1 (1W) with 1800 / 1900 MHz
  • 2G/3G/4G  asynchronous, transparent, circuit-switched communication method up to 14.4 kbps; asynchronous, non-transparent, circuit-switched communication method up to 9.6 kbps
  • Data transfer FTP server or HTTP server: CSV or xHydro format via ftp protocol; MDS server: CSV format via http protocol. MDS server is a complete solution, including database, station- /user management and data visualisation via web browser.

Data logger

  • Storage up to 500,000 values
  • Data readout  remotely
  • SIngle point of connection  principle
  • SMART Sensor  with remote access to the data logger and RQ

Additional Info

  • Characteristics: stationary measuring system
  • Features: non-contact measurement