Description
Descripción
The flow velocity sensor RG-30 has been designed for contact-free measurements of the surface flow velocity of rivers and channels by means of radar technology.
FEATURES AND ADVANTAGES
- Maintenance free
- No structural work is neccesary in the water
- Simple integration into existing systems
- No threat to the system through flooding
- Low power consumption
- Recognition of flow direction
- Measuring range from +/- 0.10 to +/- 15 m/s (depending on the flow conditions)
- Near blanking zone 0.5 m
- Non-contact and fast measurement
- Own measurement interval or externally triggered
- Independent of environmental influences
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 mA; active operation approx. 110 mA
- Operating temperature -35 … 60°C
- Miscellaneous integrated lightning protection
VELOCITY MEASUREMENT
- Measurement 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 single measurement 5 … 240 sec.
- Measurement interval 8 sec. … 5h
- Radar frequency 24 GHz (K-Band)
- Radar opening angle 12°
- Distance to water surface 0.50 …130 m
- Necessary minimum swell 3 mm
AUTOMATIC VERTICAL ANGLE COMPENSATION
- Accuracy +/- 1°
- Resolution +/- 0.1°
INTERFACE
- Analogue output (only at RG-30a) velocity 4 … 20 mA; 0 … 10 m/s configurable
- Interface 1 x RS 485 or Modbus; 1 x SDI-12
- Digital input 1 x trigger input low: 0 … 0.6 V; high: 2 … 30 V
