ADCPs - Acoustic Doppler Current Profilers

SonTek-SL

Designed specifically for side mounting on bridges, ports, canals or riverbanks, the SonTek-SL’s sleek, low-profile housing makes installation and maintenance easy. With three models to choose from, the SL can be used in channels as small as you can jump across, to rivers as wide as the Amazon. Inspired by the need for a simple way to measure water velocity and level in open channels.

SonTek

San Diego, US

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Description

Inspired by the need for a simple way to measure water velocity and level in open channels, the SonTek-SL (affectionately known as the “Side-Looker” ) has earned worldwide acceptance as a long-term monitoring solution. 3G models use SonTek’s proprietary SmartPulseHD®.

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Specifications

General: Year of last update

2014

Min. operating power [V]

7

Max. operating power [V]

15

Max. operating depth [m]

30

Max. battery lifetime [days]

220

True Bottom Tracking Capability

N

Other specifications: Real-time interfacing

RS232; RS422; SDI-12; Modbus; Analog Output (current)

Min. external power [Voltage]

110

Max. external power [Voltage]

240

Max. cable length [m]

1500

Baudrate [kbit/s]

115.2

External battery container

Y

Data acquisition software and processing software

Variable: dependent on application; ViewArgonaut

Auxiliary Sensors: Conductivity

N

Oxygen

N

Turbidity

N

Tides

Y

Waves

Y

Pressure

Y

Acoustic modem

N

Relocation of transponder

N

Wave direction

N

Speed of sound

N

Deployment method: Moving vessel

N

Bottom mount

N

Inline string mooring

N

Data Buoy

N

Marine structures

Y

Doppler Current Profiler: Center working frequency [kHz]

500 or 1500 or 3000

Max. typical profiling range [m]

120

Number of beams

3

Nadir angle [deg]

25

Max. Number of cells per beam

128

Min. blanking distance [m]

0.1

Lost data at far boundary [%]

0

Max. ping rate [Hz]

1

Min. cell size [m]

0.04

Max. cell size [m]

30

Cell overlap [%]

50

Max. velocity [m/s]

7

Speed dependent uncertainty: horizontal [%]

1

Speed independent uncertainty: horizontal [cm/s]

0.5

Speed dependent uncertainty: vertical [%]

1

Speed independent uncertainty: vertical [cm/s]

0.5

Surface reference capability

N

Surface current measurement

Y

Compensation for sound speed

Y

Single ping rejection of outliers

Y

Standard Sensors: Temperature: min [°C]

-5

Temperature: max. [°C]

60

Temperature: uncertainty [°C]

0.1

Tilt: max. [deg]

60

Tilt: uncertainty [deg]

1

Compass type

Magnetic

Application: Typical applications

Side-looking/horizontal applications for open channel flow; Ports & Harbours; discharge monitoring; vessel traffic systems; measurements from bridges or fixed structures