Flowmeter model SL 3000 (3G)

Designed by SonTek for channels or waterways where the variation of levels is known and where the distribution of velocities across the channel is important (changes in roughness, asymmetries, etc.). Its application is also ideal in channels and canals with a high sediment load and in small rivers.

3.0 MHz ADP (Acoustic Doppler Profiler) velocity transducers, consisting of two beams for measurement in the horizontal plane.

Multi-cell speed profiles (up to 128 cells).
Dynamic level measurement with a third vertical measuring beam. Redundant measurement with internal pressure sensor.
Flow calculation and output, including total flow and volume.
Internal temperature sensor.
Position/tilt sensor (Compass).
Sontek SL software: “Intelligent Flow” for sensor parameterization, data acquisition, flow calculation and data processing.
4 GB internal memory

Other models of the SL series:
SL 1500 (3G)
Measuring range: 0,2 to 20 m
   Level measurement range: 0.15 to 10 m (0.15 to 10 ft) 
SL 500
Measuring range: 1.5 to 120 m 
   Level measurement range: 0.2 to 18 m (0.2 to 18 m)

Velocity measurement:
Horizontal measurement range: 0.1 to 5 m
Minimum channel width: 0.50 m
Velocity measurement range: ±7 m/s
Resolution: 0.0001 m/s
Accuracy: ±1% of measured velocity, ±0.005 m/s

Level measurement:
Vertical beam range: from 0.1 to 5 m
Accuracy:
(Dimension < 3m): ±0.3 cm
(Dimension > 3m): ±0.1%

Pressure sensor:
Measuring range: 30 m
Accuracy: 0.10 % (full scale)

Temperature sensor:
Resolution: ±0.01º C
Accuracy: ±0.2º C
Operating temperature: -5º to 60º
Storage temperature: -10º to 70 ºC
Power supply: 9-15 VDC
Maximum power consumption: 0.8 W

Communications:
Protocols RS232/SDI-12/Modbus
Analog output 4-20mA (Optional with Flowdisplay)

Horizontal water flow measurement by ADP doppler principle