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.
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)
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
Water treatment facilities
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.