Product/Service

FlowTracker Handheld Acoustic Doppler Velocimeter

Source: YSI, a Xylem brand
The SonTek/YSI FlowTracker Handheld ADV is a compact, hand-held package to make accurate, high-precision water velocity measurements in natural streams, weirs/flumes, and open channels related to irrigation, stormwater, water treatment, and mining
The SonTek/YSI FlowTracker Handheld ADV (Acoustic Doppler Velocimeter) uses our proven ADV technology in a compact, hand-held package to make accurate, high-precision water velocity measurements in natural streams, weirs/flumes, and open channels related to irrigation, stormwater, water treatment, and mining. Designed with the field user in mind, the FlowTracker easily attaches to top-setting wading rods and features an automatic discharge computation program that is based on USGS/ISO methods.

Features

  • Simple hand-held interface with real-time velocity display
  • Automatic discharge computation program based on USGS/ISO methods
  • Shallow-water 2-axis (2D) probe measures in depths as little as 2 cm (~1 in.); optional 2D/3D probe is available.
  • 2-m probe cable (3-m cable optional)
  • Remote sampling volume of 0.25 cm3 located 10 cm from the transducer
  • FlowTracker software package
  • Internal memory for 80,000 measurements (non-volatile)
  • Temperature sensor
  • Built-in recorder, battery power, and RS232 interface
  • Mounting pin on ADV probe (Note: Complete mounting brackets for top-setting wading rods are available.)
  • Velocity range: ± 0.001 m/s to 5 m/s (0.003 to 16 ft/s)
  • Resolution: 0.0001 m/s
  • Accuracy: ±1% of measured velocity, ±0.001 m/s
  • No periodic recalibration required - invariant factory calibration
  • Proven SonTek reliability
Applications
  • Natural streams
  • Irrigation channels
  • Mining channels
  • Water treatment facilities
  • Weirs/flumes
  • Stormwater
  • Open channels
  • Discharge measurements - Note: The following link is to a Technical Memorandum issued by the U.S. Geological Survey's Office of Surface Water. This memorandum [pdf format] describes the USGS policy on the use of the FlowTracker for discharge measurements. The information presented in this memorandum is a courtesy from the USGS, and should not be construed as an endorsement. Additionally, this memorandum is provided "as-is"; that is, the USGS does not provide support for this memorandum outside its own agency.
    http://hydroacoustics.usgs.gov/memos/OSW2004-04.pdf