Products > Sensors (Water Velocity) > SonTek Argonaut-SL 3.0 MHz System

SonTek Argonaut-SL 3.0 MHz System

Easily installed on a riverbank, bridge abutment, or other vertical structure, the sleek, low-profile SonTek/YSI Argonaut-SL (Side-Looking) current meters use an advanced Doppler sonar for precise water velocity flow measurement. Robust, all-digital signal processing ensures reliable data collection within a user-programmable velocity cell extending from 0.1 m (SL3000 system) up to 120 m (SL500 system). With three models to choose from, the SL can be used in channels small enough to jump across to rivers as wide as the Amazon.

Ultra-narrow beam widths combined with unmatched side lobe suppression provide the superior acoustic directivity needed to achieve maximum horizontal range free of surface/bottom boundary interference.

Options for an external real-time LCD Flow Display, external battery pack, wave spectra output, analog data output and Modbus interface, and NexSens real-time telemetry extend the capability of the SL product family to a wide variety of applications.
  • Water velocity range +/-6 m/s (20 ft/s)
  • Resolution 0.1 cm/s (0.003 ft/s)
  • Accuracy +/-1% of measured velocity +/-0.5 cm/s (0.015 ft/s)
  • Programmable sampling range
  • Vertical acoustic beam for water level
  • Multicell velocity profiling (up to 10 equally-spaced cells)
  • Independent velocity measurement cell (programmable size and location) for flow calculations or special functions
  • Flow computation and output, including total volume
  • High-precision PowerPing
  • FlowPack velocity-index discharge rating software
  • ViewArgonaut software
  • SonUtils PDA software
  • 4MB internal nonvolatile memory
  • Temperature sensor
  • RS232/SDI-12 power/communications cable
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