RQ-30L

RADAR SENSOR RQ-30L

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Product Description

Descripción

Innovative radar sensor for non-contact discharge measurement of rivers, open channels and canals with the possibility to use and integrate external water level data.

FEATURES AND ADVANTAGES

  • Discharge measurment by means of innovative radar technology and through integration of external data (water level and cross section profile)
  • Upgrading of existing measuring sites with additional surface velocity measurement
  • Well proven RQ radar technology: non-contact measuring, maintenance free and flood-proof
  • No structural work is necessary in the water
  • Recognition of flow direction and hysteresis effects
  • Measurement in tidal waters
  • Measurement in backwater situations
  • Measures even where weed growth prevails and in waters with high turbidity
  • Measuring range from +/- 0.10 bis +/- 15 m/s (depending on flow conditions)
  • Analogue outputs 4 to 20 mA (optional)

TECHNICAL DETAILS

GENERAL

  • Dimensions 241 mm x 246 mm x 154 mm
  • Total weight 2.7 kg
  • Protection IP 67
  • Power supply 6 … 30 V
  • Power consumption at 12V standby approx. 1.5 mA; active operation approx. 140 mA
  • operating temperatrue – 35 … 60°C
  • Miscellaneous integrated lightning protection

SURFACE VELOCITY MEASUREMENT

  • Measuring range 0.10 … 15 m/s (depending on flow conditions)
  • Accuracy +/- 0.01 m/s; +/- 1 % FS
  • Resolution 1 mm/s
  • Direction recognition +/-
  • Measurement duration 5 … 240 sec.
  • Measurement interval 8 sec. … 5h
  • Measuring frequency 24 GHz (K-Band)
  • Radar opening angle 12°
  • Distance to water surface 0.50 … 35 m
  • Necessary minimum swell 3 mm

AUTOMATICAL VERTICAL ANGLE COMPENSATION

  • Accuracy +/- 1°
  • Resolution +/- 0.1°

INTERFACE

  • Interface 1 x SDI-12; 1 x RS 485 or Modbus; transfer rate: 1.2 to 19.2 kBd; protocol: various ASCII-protocols; output: discharge rate, flow velocity, water level, quality parameters
  • Input (water level values) electrical signal: 4 … 20 mA or 0 … 2.5 V
  • Output 3x analogue outputs, 4 … 20 mA; for water level, flow velocity and discharge rate