Xylem SonTek FlowTracker2 User Manual

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FlowTracker2

USER'S MANUAL 1.6

SOFTWARE VERSION 1.6

FIRMWARE VERSION 1.3

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Summary of Contents for Xylem SonTek FlowTracker2

Page 1 Phone 303-320-4764 • Fax 303-322-7242 1-800-833-7958 www.geotechenv.com Copyright 2019 by Xylem Inc. All rights reserved. This document may not, in whole or in part, be copied, 9940 Summers Ridge Rd photocopied, reproduced, translated, or reduced to any electronic medium or Machine-readable form with- San Diego, CA 92121 out prior consent in writing from Xylem.
Page 2 However, Xylem makes no warranties with respect to this documentation and disclaims any implied warranties of merchantability and fitness for a particular purpose. Xylem shall not be liable for any errors or for incidental or consequential damages in connection with the furnishing, performance, or use of this manual or the examples herein.
Page 3 • FlowTracker2 firmware version 1.30 • FlowTracker2 software version 1.6 Trademarks The terms FlowTracker2 are registered trademarks of Xylem Inc. All rights are reserved. All other brand names are trademarks of their respective holders. Warranty, Terms, and Conditions Thank you for purchasing the FlowTracker2. The instrument was thoroughly tested at the factory and found to be in excellent working condition.
Page 4 SonTek – a Xylem brand FCC INFORMATION This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Page 5: Table Of Contents
SonTek – a Xylem brand Table of Contents List of Tables ....................... 14 List of Equations ......................16 Section 1. Quick Overview ..................17 1.1. System Components ..................17 1.2. Definitions and Terminology ................19 Section 2. System Operation ..................21 2.1.
Page 6 SonTek – a Xylem brand 3.3.2.3 Selecting Template ......................41 3.4. Template Functions ..................42 3.4.1 File Properties ........................42 3.4.2 Data Collection Settings ...................... 43 3.4.2.1 Averaging Time ........................44 3.4.2.2 Salinity ..........................44 3.4.2.3 Temperature ........................45 3.4.2.4 Sound Speed ........................
Page 7 SonTek – a Xylem brand 4.7. GPS Data ......................65 4.8. Pressure Sensor (Pressure Sensor) ..............66 4.9. System Maintenance ..................67 4.9.1 Force Probe Upgrade ......................67 Section 5. Data Collection Modes ................69 5.1. Discharge Mode ....................69 5.1.1...
Page 8 SonTek – a Xylem brand 6.3.4.4 Boundary in Sampling Volume ..................103 6.4. Automated Beam Check ................104 Section 7. Measurement Process ................107 7.1. Office Procedures ..................107 7.1.1 Equipment List ........................107 7.1.2 Hardware Inspection ......................108 7.1.3 Office Diagnostic .......................
Page 9 SonTek – a Xylem brand 8.3.4.4 Review Station Measurement ................... 143 8.3.5 Data Collection Menu ......................145 8.3.5.1 Settings ..........................146 8.3.5.2 Supplemental Data ......................146 8.3.5.3 Discharge Summary ......................147 8.3.5.4 Station Summary ....................... 148 8.3.5.5 Automated Beam Check ....................149 8.3.5.6...
Page 10 SonTek – a Xylem brand 10.2. Handheld ....................180 10.3. Cables and Connectors ................181 10.4. Certifications ....................181 10.5. PC System Requirements ................182 Section 11. Operational Considerations ..............183 11.1. Software Upgrade ..................183 11.1.1 Upgrading Handheld Software ..................183 11.1.2...
Page 11 SonTek – a Xylem brand 12.2. FlowTracker2 CSV Output ................207 12.2.1 CSV File Structure......................207 12.2.2 CSV Variables ........................208 12.3. Original FlowTracker ASCII vs JSON ............216 Section 13. Principle of Operations ................. 224 13.1. FlowTracker2 Overview ................224 13.2.
Page 12 SonTek – a Xylem brand 14.1. Overview of Software Features and Functions ........... 237 14.2. Installing Software ..................238 14.3. Changing Settings ..................239 Changing Language (Settings > User Interface > Language) ..........239 14.3.1 User Interface Tab......................239 Changing Scale and Font Size (Settings > User Interface > Scale) ........240 14.3.1.1...
Page 13 SonTek – a Xylem brand 14.7.3 Opening FlowTracker2 Template Files (.ft_template) ............260 14.7.4 Opening Original FlowTracker Handheld ADV Data Files (.WAD files) ......261 14.8. Overview of View Data Options ..............263 14.8.1 Measurement Summary Pane ..................264 14.8.2 Main Viewing Pane......................
Page 14 SonTek – a Xylem brand Appendix D. Measurement Equipment List ............302 Appendix E. CE Declaration of Conformity ............. 303 INDEX ......................... 305 FlowTracker2 User’s Manual (January 2019)
Page 15: List Of Tables
SonTek – a Xylem brand List of Tables Table 3:1 – Beeper Options ..................31 Table 3:2 – FlowTracker2 Display Units ................ 33 Table 3:3 - Wading Rod Graphics ................. 34 Table 3:4 - File Naming Conventions ................35 Table 3:5 - GPS Status Icons ..................37 Table 3:6 - Air Pressure Cal.
Page 16 SonTek – a Xylem brand Table 8:8 - Review Point Measurement ..............135 Table 8:9 - Review Station ..................136 Table 8:10 - Review Point Measurement ..............142 Table 8:11 - Review Station ..................144 Table 8:12 - Discharge Summary ................147 Table 8:13 - Station Summary ..................
Page 17: List Of Equations
SonTek – a Xylem brand List of Equations Equation 5:1 - Mid-Section Method ................71 Equation 5:2 - Mean-Section Method ................72 Equation 5:3 - Japanese Method > 10m ............... 74 Equation 5:4 - Japanese Method < 10m ............... 74 Equation 5:5 - Discharge Weighted ................
Page 18: Quick Overview
SonTek – a Xylem brand Section 1. Quick Overview 1.1. System Components Layout of FlowTracker2 and all major components are labeled in Figure 1:1. • Probe – The FlowTracker2 probe (Figure 1:2) contains the acoustic elements to measure velocity. See Principle of Operations for more information.
Page 19 SonTek – a Xylem brand • Transmitter – The acoustic transmitter generates a short pulse of sound with the majority of energy concentrated in a narrow beam (6 mm in diameter). • Receivers – The acoustic receivers are mounted on arms from the central probe head.
Page 20: Definitions And Terminology
SonTek – a Xylem brand 1.2. Definitions and Terminology This section defines terms commonly used when working with FlowTracker2 • Averaging Time – The time (in seconds) in which the FlowTracker2 records data at each measurement location. This is a user-specified value from 10 to 1000 seconds.
Page 21 SonTek – a Xylem brand • Temperature – Water temperature (in °C) is measured by the internal temperature sensor. Temperature is used for sound speed calculations. • UTC - Coordinated Universal Time, abbreviated as UTC, is the primary time standard by which the world regulates clocks and time...
Page 22: System Operation
SonTek – a Xylem brand Section 2. System Operation The System Operation section describes the keypad interface, handheld software menus and the LCD display. 2.1. On/Off Switch The On/Off power button for the FlowTracker2 can be accessed on the right side of the keypad, 3 row from the top.
Page 23 SonTek – a Xylem brand • select different options under each parameter in configuration, • select station type or velocity method in measurement, • select station in data collection. iv). Top & Bottom arrow – The key allows the user to perform the following actions, •...
Page 24: Keypad Filter
SonTek – a Xylem brand iii). Selected station in Discharge and General mode. Text entry is done in the same manner as for mobile devices. • numerical fields, the text entry assumes numbers first (i.e. for “2” press 2 key one time, 2 –...
Page 25: Screen Layout
SonTek – a Xylem brand Keypad Filter feature operate by filtering file names based on the keystrokes entered by the user. The files filtered in Figure 2.3 was based on the following three key strokes, • 1 Key: 3DEF • 2 Key: 1 •...
Page 26: Device Configuration Menu (Main Menu)
SonTek – a Xylem brand Main menu consists of four menu options, a) Device Configuration, b) Utilities, c) Communication, d) System Information e) To select a menu option, i). Use up or down scroll arrows keys to select menu option, Figure 2:5 - Main Menu ii).
Page 27: Utilities (Main Menu)
SonTek – a Xylem brand 2.5.2 Utilities (Main Menu) The Utilities Menu accesses internal system functions of the FlowTracker2. The available functions assists with setting the internal clock and power source, management of recorder, displaying raw velocity and GPS data and performing tests on measurement and boundary conditions.
Page 28: Measurement (Main Menu)
SonTek – a Xylem brand Handheld System Information of the FlowTracker2 includes the following system information, a) Device (FlowTracker2 Handheld), b) Serial Number (123456), c) Upgraded Firmware (V0.14.7). d) To navigate to Main Menu or Probe Information, i). Main Menu – Press the Left Soft Key, ii).
Page 29: Data Files (Main Menu)
SonTek – a Xylem brand Measurement function consists of two measurement modes in the menu, a) Discharge, b) General. c) To select a menu option, i). Use up or down scroll arrows keys to select menu option, ii). The menu option selected will be highlighted in...
Page 30 SonTek – a Xylem brand Before any measurement files and or folders are deleted please ensure that the following steps are performed, • Download all measurement files using the FlowTracker2 desktop software, • Ensure that measurement files are stored in a secure location on PC or Tablet, •...
Page 31: Device Configuration
SonTek – a Xylem brand Section 3. Device Configuration 3.1. User Interface User Interface defines the settings related to interaction (view and audio) between the operator and the device. User Interface screen includes the following parameters, a) Language, b) Use Beeper,...
Page 32: Use Beeper
SonTek – a Xylem brand If you selected a wrong language the menu functions can be a bit hazy! The following steps will get you out of the gate. i) the main menu must be displayed, ii) top menu option must be highlighted, iii) press the enter key two times, iv) use left or right arrow key to select different language, v) press left soft key two times, vi) handheld software will restart with new selected language.
Page 33: Font Size
SonTek – a Xylem brand ii). Press the Left Soft Key to return to Configuration for the software to accept the change. 3.1.4 Font Size Font Sizes give the operator the ability to improve visibility of text on the LCD display under different light conditions that may be experienced during field work.
Page 34: Units
SonTek – a Xylem brand 3.2.1 Units The Units function defines the Units System used for displaying and outputting measurement data. a) The Units Systems supported in FlowTracker2 is grouped under the following, i). Metric, ii). English, b) The internal unit system used is Metric and this does not affect internal...
Page 35: File Naming
SonTek – a Xylem brand i). Top-Setting (Instrument referenced to water surface) ii). Universal (Instrument referenced to bottom) iii). Ice (Instrument referenced to water surface) iv). Unknown b) The graphic representation of the Wading Rods supported and the fractional depth indicators are defined in...
Page 36: Folder Naming
SonTek – a Xylem brand Table 3-4 - File Naming Conventions Naming Convention Description Example Number Site Number 09429500 Number_Date Site Number_yyyymmdd 09429500_20151013 Number_DT Site Number_yyyymmdd-hhmmss 09429500_20151013-170220 Date_Number yyyymmdd_Site Number 20151013_09429500 DT_Number yyyymmdd-hhmmss_Site Number 20151013-170220_09429500 Name Site Name Colorado Name_Date...
Page 37: Gps Station Tagging
SonTek – a Xylem brand ii). Press the Left Soft Key to return to Configuration for the software to accept the change. 3.2.5 GPS Station Tagging The GPS Station Tagging function allows the operator control over the GPS operation during measurements.
Page 38: Table 3:5 - Gps Status Icons
SonTek – a Xylem brand • If a GPS lock is not obtained before the station measurement is completed, the software will not record positional information for the station. The GPS status Icons are listed in Table 3:4 • The positional information is averaged when the “Record GPS Location”...
Page 39: Use Pressure Sensor (Pressure Sensor)
SonTek – a Xylem brand ii). Press the Left Soft Key to return to Configuration for the software to accept the change. 3.2.6 Use Pressure Sensor (Pressure Sensor) The Use Pressure Sensor function allows the operator to enable the internal pressure sensor for depth measurements in both Discharge and General data collection modes.
Page 40 SonTek – a Xylem brand Parameter Default Units Required Period If the period between calibrations is too long, the change in atmospheric pressure can impact the accuracy of the depth measurements FlowTracker2 User’s Manual (January 2019)
Page 41: Configuration Templates
SonTek – a Xylem brand 3.3. Configuration Templates 3.3.1 Template Options The Templates implemented in FlowTracker2 consists of the following template options. The templates consist of number of configuration parameters required for performing measurements in either Discharge or General mode under the Measurement function.
Page 42: New Template
SonTek – a Xylem brand Template Operating Screen will list all available templates on the handheld or if there are no templates available, indicate “Currently there are no user templates defined – please use the ‘New Template’ button to create the first template”.
Page 43: Template Functions
SonTek – a Xylem brand 3.4. Template Functions The Template functions for Discharge and General Modes contain all the configuration parameters required for performing velocity measurements, discharge calculation and uncertainty analysis. The functions defined under each template contain site information, data collection criteria, quality control parameters and measurement methods (only for discharge mode).
Page 44: Data Collection Settings
SonTek – a Xylem brand File Properties screen includes the following parameters, a) Site Number, b) Site Name, c) Operator. d) To select a parameter, i). Use up or down scroll arrows keys to select a parameter, ii). The parameter selected will be highlighted in Figure 3:10 - File Properties yellow.
Page 45: Averaging Time
SonTek – a Xylem brand yellow. g) To navigate to Template Menu, i). Press the Left Soft Key. Properties associated with the parameters in data collection settings are defined in Table 3:8, Table 3-8 - Data Collection Settings - Properties...
Page 46: Temperature
SonTek – a Xylem brand d) Salinity should be specified or determined using a CTD instrument as accurately as possible for each measurement location. The CastAway-CTD is a lightweight, easy to use instrument designed for quick and accurate conductivity, temperature, and depth profiles.
Page 47: Mounting Correction
SonTek – a Xylem brand a) The sound speed value used in Doppler velocity calculations is based on internal calculations by default. The sound speed field will be populated with the value “Calculated” to indicate it is based internal calculations.
Page 48: Snr Threshold
SonTek – a Xylem brand Quality Control Settings screen includes the following parameters, a) SNR Threshold, b) Std Error Threshold, c) Spike Threshold, d) Velocity Angle for Warning, e) Tilt Angle Warning. f) To select a parameter, i). Use up or down scroll arrows keys to select a...
Page 49: Std Error Threshold
SonTek – a Xylem brand 3.4.3.2 Std Error Threshold The Standard Error Threshold parameter is a maximum threshold placed on the Standard Error of velocity measurements. σV a) Standard error of velocity ( ) is a direct measure of the accuracy of the mean velocity data.
Page 50: Tilt Angle Warning
SonTek – a Xylem brand 3.4.3.5 Tilt Angle Warning The Tilt Angle Warning parameter is the maximum threshold placed on the tilt angle of the wading rod. a) An angle of 0° means the wading rod is vertical (as desired for an ideal mounting position).
Page 51: Discharge Equation
SonTek – a Xylem brand Max Depth Change for Warning 0.01 Max Spacing Change for Warning 0.01 0.6 Method Depth m or ft 3.4.4.1 Discharge Equation The Discharge Equation parameter allows the user to specify what type of discharge calculation method must be applied in the discharge calculation process.
Page 52: Discharge Reference
SonTek – a Xylem brand current meters or floats, • Cohn, T., Kiang, J., and Mason, R., Jr. (2013). ”Estimating Discharge Measurement Uncertainty Using the Interpolated Variance. d) To change the Discharge Uncertainty method, i). Use the left or right arrow key to scroll through the list of options, 3.4.4.3...
Page 53: Max Spacing Change For Warning (%)
SonTek – a Xylem brand ii). Type in the new value using the keypad. d) To DISABLE the Max Depth Change for Warning, i). Use the backspace key to clear current entry until “Disabled” is displayed. 3.4.4.6 Max Spacing Change for Warning (%) The Max Spacing Change for Warning parameter is the maximum threshold placed on spacing change.
Page 54: Table 3:11 - Displayed Velocity Methods - Properties
SonTek – a Xylem brand Displayed Velocity Methods screen includes the following parameters, a) 0.2/0.8/0.6 Methods b) Kreps Methods c) 5-Point Methods d) 6-Point Methods e) Vertical Velocity Curve f) To select a velocity method, i). Use up or down scroll arrows keys to select a...
Page 55: Utilities
SonTek – a Xylem brand Section 4. Utilities 4.1. System Clock System Clock function enables the setting of the internal date and time used in the FlowTracker2 handheld software. The main data collection processes are associated with internal date and time stamps and it is important that the instrument date and time are configured correctly.
Page 56: Sync With Gps Time
SonTek – a Xylem brand Clock yellow. e) To change the Offset From UTC, i). Use the left or right arrow key to scroll through the list of available offsets, ii). Type in the new value using the keypad. f) To change the Date or Time, i).
Page 57: Recorder
SonTek – a Xylem brand d) To CANCEL Sync with GPS Time, i). Press the Left Soft Key. GPS On: If the internal clock is detected to be more than one minute off – the clock text will be displayed in red and blinking. If the time difference with internal clock is less than 1 minute –...
Page 58: Erase Recorder
SonTek – a Xylem brand File Type Extension Visible Erase Template File Manual Beam Flow Tracker 2 .ft_beamcheck Check Beam Check File Configuration not relevant/not .dat user exposed 1) Uploaded from PC. Firmware Flow Tracker 2 .ft_firmware 2) Not visible or accessible in Firmware File HH by user.
Page 59: Battery Data
SonTek – a Xylem brand Be certain that all data has been downloaded before erasing the recorder. Data cannot be recovered after the recorder is erased. Regularly erasing the recorder ensures that good data management practices are followed. This will process will reduce the impact of unwanted or corrupt files on the available memory.
Page 60: Battery Voltage
SonTek – a Xylem brand ii). NiMH: Panasonic Rechargeable BK200AAB, iii). See also Table 4:5 – Battery Specification. c) The typical capacity for battery types operating FlowTracker2 are the following. This is dependent on the brand of battery used and the environmental conditions that it is exposed to.
Page 61: Velocity Raw Data
SonTek – a Xylem brand The Raw Data screen includes the following variables, a) Velocity, b) SNR, c) Temperature, d) Tilt, e) Battery, Pressure f) Pressure. Sensor Figure 4:7 - Raw Data g) To select a variable, i). Use up or down scroll arrows keys to view a variable.
Page 62 SonTek – a Xylem brand Velocity Line Keypad Description Graphic Display Component Color The positive X-axis is defined perpendicular to both the probe’s stem and X - Velocity the axis of the transmit transducer in the direction of receiver arm #1 (marked with a red band).
Page 63: Snr Raw Data
SonTek – a Xylem brand 4.4.2 SNR Raw Data The SNR variable displays the individual Beam SNR measurements from the one second measured raw data. a) SNR is primarily a function of the amount of particulate matter in the water. For good conditions, SNR should be at least 10 dB.
Page 64: Tilt Raw Data
SonTek – a Xylem brand 4.4.4 Tilt Raw Data The Tilt variable displays the angle of the wading rod from the vertical based on one second measured raw data. a) The Tilt information is calculated from the internal pitch and roll sensor in the FlowTracker2 probe.
Page 65: Automated Beam Check
SonTek – a Xylem brand 4.5. Automated Beam Check The Automated Beam Check function allows the user to perform a Beam Check in the region of the measurement section before data collection starts. The automated beam check perform a number of quality control checks on the data collected to determine if the flow conditions are suitable for discharge measurements.
Page 66: Beam Check
SonTek – a Xylem brand i). Press the Right Soft Key, ii). The software will navigate to the Utilities window. 4.6. Beam Check Beam Check operates by sending a pulse of sound into the water, and then plots the signal to noise ratio of the return signal versus range for each of the FlowTracker’s receivers.
Page 67: Pressure Sensor (Pressure Sensor)
SonTek – a Xylem brand The GPS Data screen includes the following variables, a) Device Date UTC, b) Device Time UTC, c) Satellite Date UTC, d) Satellite Time UTC, e) # Satellites, f) Fix Quality, g) Latitude, h) Longitude, Figure 4:11 - GPS Data i) Altitude, j) HDOP.
Page 68: System Maintenance
SonTek – a Xylem brand Depth data will not be displayed if the probe is in air. The probe must be submerged in water. Pressure Sensor Data displayed in this function are NOT stored. It enables the user to verify the pressure sensor operation and determine if flow conditions are ideal for measurements.
Page 69 SonTek – a Xylem brand Warning screen of Force Probe Upgrade function displays the warnings associated with downgrading probe firmware, a) To CANCEL force probe upgrade, i). Press the Left Soft Key. b) To continue with force probe upgrade, i). Press the Right Soft Key.
Page 70: Data Collection Modes
SonTek – a Xylem brand Section 5. Data Collection Modes The FlowTracker2 provides two data collection modes that the user can apply in the collection of velocity data. The Discharge and General modes available in FlowTracker2 has different field applications and the method of each mode is described in this section.
Page 71: Discharge Calculation Methods
SonTek – a Xylem brand Graduated Tag Line Primary Flow Direction Sampling Volume Probe Coordinate System Mounting Figure 5:1 – FlowTracker2 Probe Orientation Relative to Stream Flow f) When all station measurements are completed, the operator records the ending- edge location and water depth.
Page 72 SonTek – a Xylem brand This method is used by the U.S. Geological Survey (USGS), the primary U.S. government agency responsible for river discharge monitoring. �� − �� − �� − �� = � �� ...
Page 73: Mean-Section Equation
SonTek – a Xylem brand b) Islands (multiple channels) i). If a river is split into multiple channels, any internal island(s) must be accounted for in the discharge calculation, ii). The stations at each edge of the island(s) are treated as an Island Edge, iii).
Page 74: Japanese Equation
SonTek – a Xylem brand Figure 5:3 - Mean-Section Method There are few special cases to consider when applying the Mean-Section method in calculating of total discharge. a) Edges i). Edge can be either the Left Bank or Right Bank, ii).
Page 75: Table 5:1 - Predetermination Of Measuring Intervals
SonTek – a Xylem brand the Japanese method is the duplicate measurements performed of each depth and point velocity measurements at a station. The Japanese national standard guideline for determining the measurement interval for depth and velocity are dependent on the...
Page 76: Determining Mean Station Velocity
SonTek – a Xylem brand The application of the Japanese equation within a measurement section that is greater than 10m is graphically shown in Figure 5:4. Figure 5:4 - Japanese Method >10m There are few special cases to consider when applying the Japanese method in calculating of total discharge.
Page 77: Table 5:2 - Determining Mean Station Velocity
SonTek – a Xylem brand measurement depts. The method used to calculate the mean velocity in a vertical depends on the number of point velocity measurements made within a vertical. Methods implemented for determining mean station velocity in a vertical are based on the following literature, •...
Page 78: Method None
SonTek – a Xylem brand Method Measurement Depth Mean Velocity Equation = CF * V mean adjacent Mean velocity is based on the velocity from the adjacent None No velocity measurement station(s), multiplied by a user-specified correction factor. This method is used when velocity measurements cannot be made or with the Japanese method.
Page 79: Correction Factor
SonTek – a Xylem brand a) For each measurement, you must manually enter the measurement depth. b) The mean station velocity (mean velocity in vertical) is calculated by integrating all velocity measurements considering their location as illustrated in Figure 5:5.
Page 80: Discharge Uncertainty Calculation
SonTek – a Xylem brand Station Type Velocity Method Correction Factor 0.2 / 0.8 0.2 / 0.6 / 0.8 Enter Velocity None User defined 0.88 0.92 0.2 / 0.8 0.2 / 0.6 / 0.8 Enter Velocity c) The CF can consist of any value between -1.00 and 1.00, except 0.0.
Page 81: Under Ice Measurements
SonTek – a Xylem brand c) The uncertainty calculations are based on several different parameters. In addition to overall uncertainty, the FlowTracker2 also looks at the contribution of each of the following parameters. i). Accuracy: The accuracy of the FlowTracker2 calibration (this is generally negligible), ii).
Page 82: Weighted Gauge Height
SonTek – a Xylem brand b) Calculating of effective depth. The effective depth is defined by the distance between the streambed and the bottom of the ice or slush in the case slush is present, i). 0.2 depth setting = a + 0.2C ii).
Page 83: General Mode
SonTek – a Xylem brand T is the total time for the measurement, t is the duration of time interval between gauge height readings, h is the average gauge height readings taken between time interval. The method for determining the weighted gauge height are based on the following literature, •...
Page 84: Quality Control
SonTek – a Xylem brand Section 6. Quality Control Quality Control (QC) is continuously performed on all variables collected during a measurement in both Discharge and General Modes. The Quality Control Parameters are automatically reviewed at different stages of a measurement and if any values exceed the expected criteria a warning is supplied.
Page 85: Signal To Noise Ratio (Snr)
SonTek – a Xylem brand Expected Parameter Description • Large angles may be unavoidable at some sites. Angle of the wading rod relative to the vertical, • Used for both discharge and general mode, Ideally < 5º Tilt Angle • A good measurement should have small tilt angles, •...
Page 86: Table 6:2 - Snr Data Types
SonTek – a Xylem brand software, Table 6-2 – SNR Data Types Mode Reporting Type Description One second SNR data is displayed for each Raw Data beam and color codes based on the beam number (see Table 4:4 Graphical Moving average is calculated of the one...
Page 87 SonTek – a Xylem brand • For 2D systems, if the SNR of either beam is low, this will affect all velocity data even if the other beam shows higher SNR values. • For 2D/3D systems, if only the SNR of Beam 3 is low, vertical velocity data (Vz) are affected;...
Page 88: Velocity Standard Error
SonTek – a Xylem brand g) The SNR checks are re-run (Discharge mode and General mode measurement) to ensure the warnings are set with the most current data. h) This criterion can be adjusted or disabled under Quality Control Settings.
Page 89: Boundary Interference
SonTek – a Xylem brand in General mode and Discharge mode. i). The standard error threshold for each measurement is the greater of the following, • σV Threshold (default 0.01 m/s / 0.033 ft/s), • If the mean σVx for three or more completed stations measurements is greater than σV Threshold, then increment the σV Threshold by the...
Page 90 SonTek – a Xylem brand ii). The FlowTracker2 measures velocity in a sampling volume 10 cm (4 in) from the probe tip. iii). If the sampling volume is on top of or beyond an underwater object, velocity data will be meaningless.
Page 91: Velocity Spike Filter
SonTek – a Xylem brand • User is prompted to consider moving the probe to avoid this interference. • If the probe is moved, repeat the boundary test prior to data collection. • If repeated Boundary QC tests do not give improved results, user can proceed with the measurement, but should carefully evaluate velocity data.
Page 92: Velocity Angle
SonTek – a Xylem brand i). If the number of spikes is a greater percentage of the total number of points than specified by the Spike Threshold, a warning is given. • This may indicate interference from an underwater obstacle, a highly turbulent environment, or highly aerated water.
Page 93 SonTek – a Xylem brand Graduated Tag Line Primary Flow Direction Sampling Volume Probe Coordinate System Mounting Figure 6:2 – FlowTracker2 Probe Orientation Relative to Stream Flow ii). An angle of 0° means flow direction is perpendicular to the tag line (as desired for an ideal measurement location).
Page 94: Tilt Angle
SonTek – a Xylem brand 6.1.6 Tilt Angle The Tilt Angle quality control is applied to each point velocity measurements in both General mode and Discharge mode a) A good measurement will typically show variations in wading rod angle, but with all angles less than about 5°.
Page 95: Station Water Depth
SonTek – a Xylem brand % Stn Q b) If the station discharge exceeds Max Station Q percent of the rated flow, a Evaluate warning is issued; you are prompted to consider adding another station. i). If rated flow is entered, the discharge from each station is checked against this rated value when the station is completed.
Page 96: Station Location
SonTek – a Xylem brand 6.1.9 Station Location The Max Spacing Change criterion (default 100%) is intended to avoid data entry errors. a) It is assumed that the spacing of adjacent stations will be nearly constant across the river. b) If spacing between stations has changed by more than Max Spacing Change, an alert is issued to be sure the location was not incorrectly entered.
Page 97: Velocity Profile 0.2 \ 0.8
SonTek – a Xylem brand 6.1.10 Velocity Profile 0.2 \ 0.8 The Velocity Profile 0.2 \ 0.8 criterion is intended to identify unusual velocity distribution within the measurement profile. . a) For an ideal discharge measurement site, the velocity distribution in the measurement profile should follow 1/6 power-law.
Page 98 SonTek – a Xylem brand Warning Reporting QC Criteria Description Suggested Action highly aerated environment. sources (e.g., aerated water). • Look for underwater SNR more than SNR Threshold obstacles or other Point different from previous Threshold changes in river Velocity Threshold measurements;...
Page 99: Timing Of Warning Messages
SonTek – a Xylem brand Warning Reporting QC Criteria Description Suggested Action • Verify fractional depth Fractional Depth < 1. Verify ratio Fractional Point None between measurement depth and value. Depth > 1 Velocity • Re-enter if needed. total depth and this should not >1 6.2.2...
Page 100: Beam Check Overview
SonTek – a Xylem brand Figure 6:3 - Beam Check 6.3.1 Beam Check Overview The FlowTracker2 transmits a pulse of sound, it then receives the return signal to noise ratio for each of the 2 (or 3) receivers as a function of time following the transmit pulse.
Page 101: Beam Check Features
SonTek – a Xylem brand i). Signal to noise ratio decreases to the electronic noise level past the boundary and is typically about 30-70 counts, ii). An easy way to measure the instrument noise level is to run Beam Check when the probe is not in the water.
Page 102: Beam Check Operation
SonTek – a Xylem brand 6.3.3 Beam Check Operation Beam Check can be performed in either a small tank, bucket of water or measurement section in canal or river such that the probe is submerged and there is a boundary (surface, side, or bottom) within view.
Page 103: Boundary Detected Within Beam Check
SonTek – a Xylem brand Figure 6:5 - Strong Scattering Strength 6.3.4.3 Boundary Detected within Beam Check When a boundary is within 50cm from the FlowTracker2 transducer, the boundary will be detected by FlowTracker2 when performing a Beam Check (see Figure 6:6).
Page 104: Boundary In Sampling Volume
SonTek – a Xylem brand The Beam Check supplied in Figure 6:8 indicates that boundary was detected at 30cm away from the transducer. Figure 6:8 - Boundary Detected - 20cm Boundary that is located within 27cm from the FlowTracker2 transducer can affect the accuracy and precision of velocity measurement.
Page 105: Automated Beam Check
SonTek – a Xylem brand 6.4. Automated Beam Check The Automated Beam Check function allows the user to perform a Beam Check in the region of the measurement section before data collection starts. The automated beam check perform a number of quality control checks on the data collected to determine if the flow conditions are suitable for discharge measurements.
Page 106: Table 6:7 - Automated Beam Check Display
SonTek – a Xylem brand Quality Control Criteria QC Warning Graphic Display • The shape of the sampling volume curve is compared to the expected shape. Any significant deviation causes a Peak Level > Peak Level warning, • This criterion can only be checked with sufficient SNR (>...
Page 107 SonTek – a Xylem brand FlowTracker2 User’s Manual (January 2019)
Page 108: Measurement Process
SonTek – a Xylem brand Section 7. Measurement Process The Measurement Process involved for performing field measurements using a FlowTracker2 instrument consists of number of components. It is important for both the novice and experienced user that each of the components is followed to ensure that the data collected during the measurement process is within acceptable standards and quality.
Page 109: Hardware Inspection
SonTek – a Xylem brand c) Recommended measurement equipment list containing FlowTracker2 instrument, measurement gear, safety gear and reference instruments are supplied in Appendix D. The safety gear listed in Appendix D is only a recommendation. It is imperative that the user follow their respective organization and or local authority guidelines in the use of safety gear during field measurements.
Page 110: Table 7:2 - Office Diagnostics
SonTek – a Xylem brand i). Internal System functions comprise of internal clock, recorder, battery and GPS data. These functions can be verified manually by evaluating the information displayed or using external reference if required. ii). Raw data function includes Velocity, SNR, Temperature, Battery and Tilt data that is graphically displayed.
Page 111: Measurement Site Information
SonTek – a Xylem brand Function Verification Variable • Peak Position Beam Check functions serve two purposes, verifying the probe • Peak Location performance and measurement conditions, • Evaluate the Quality Control reports supplied during the Beam Check test. 7.2. Measurement Site Information Measurement Site Information, commonly referred to as “Metadata”, should be...
Page 112: Pre Measurement Diagnostics
SonTek – a Xylem brand 7.3. Pre Measurement Diagnostics Pre Measurement Diagnostics is an essential step in the measurement process to ensure accurate and consistent measurement results. The functions evaluated in pre- measurement diagnostics are the same as discussed in Office Diagnostics.
Page 113: Measurement Procedure
SonTek – a Xylem brand 7.4. Measurement Procedure The basic outline of the Measurement Procedure required to perform a Discharge measurement with a FlowTracker2 instrument is supplied in the following section. The measurement procedure is based on wading principles, which is suited for low to medium flow conditions depending on water velocity and depth.
Page 114: Post Measurement Requirements
SonTek – a Xylem brand Determining Mean Station Velocity method for each station. The software suggests either a six-tenths or two-point method depending on the threshold in 0.6 Method Depth and the measured water depth. The minimum distance between the channel bed and water surface and instrument must be within the instrument specifications.
Page 115: Review Of Measurement Site Information
SonTek – a Xylem brand • Storage. 7.5.1 Review of Measurement Site Information Review of Measurement Site Information before departing from the measurement site is important to ensure that all associated Metadata is accurate. It is recommended that the user verify each variable populated during the measurement process with the main focus on the measurement site reference.
Page 116: Data Management
SonTek – a Xylem brand database or other data formats to perform this process in the field. 7.5.3 Data Management Data Management consists of the process involved in managing the information collected during field measurements. The steps required to ensure data continuity and safe keeping after field measurements are completed are the following.
Page 117 SonTek – a Xylem brand FlowTracker2 User’s Manual (January 2019)
Page 118: Discharge Measurement
SonTek – a Xylem brand Section 8. Discharge Measurement Discharge Measurement is the measurement technique involved in collecting data for discharge calculation based on the Discharge Mode (see Data Collection Modes). The data collection framework for discharge measurement is a well-designed workflow (see...
Page 119: New File Template
SonTek – a Xylem brand The New File Type screen consists of the following options, a) Discharge, b) General, c) To select discharge mode, i). Use up or down scroll arrows keys to select Discharge and press enter key. d) The software will Navigate to the New File Template screen.
Page 120: Automated Beam Check
SonTek – a Xylem brand information is recorded in each measurement file and used in both the File Naming Folder Naming conventions. • Existing templates created under “Device Configuration”, parameters will be prepopulated from File Properties information that was captured, •...
Page 121: Start Automated Beam Check
SonTek – a Xylem brand Automated Beam Check can be performed during any stage of the data collection process. The Automated Beam Check functions are available before data collection start and during velocity measurement from the “Data Collection Menu” (see...
Page 122 SonTek – a Xylem brand Quality Control Criteria QC Warning Graphic Display • The SNR is checked as sufficient for reliable data collection, • Each beam SNR is compared to be sure all beams perform equally, • A warning is issued for low SNR <...
Page 123: Data Collection
SonTek – a Xylem brand Table 8-2 - Automated Beam Check Display Beam Line Color Keypad Key Beam1 Beam2 Blue Beam3 Green All Beams c) To select a Quality Control Criteria, i). Use up or down scroll arrows keys to view quality control criteria.
Page 124: Add Station
SonTek – a Xylem brand Figure 8:6 - Data Collection Window The operations and functions available of the Data Collection Window will be discussed throughout this section with the main functions described in Figure 8:7. Data Collection Window screen of the consists of...
Page 125: Edit Station
SonTek – a Xylem brand The station delete process is not reversible and the user must ensure that the correct station is selected. Selected station will be highlighted with a yellow background. Delete Station is performed from the Data Collection Window. Up to ten completed stations...
Page 126 SonTek – a Xylem brand Step 1 Open Station is performed from the Data Collection Window. Up to ten completed stations will be displayed at any time, a) To select a station, i). Use the left or right arrow key to scroll through...
Page 127: Station Types
SonTek – a Xylem brand Discarding Measurements Window. c) To CANCEL incompatible point velocity measurements delete, i). Press the Left Soft Key. When changes are made to the Velocity Method and Station Type, existing point velocity measurements will be lost if the velocity method is incompatible with the proposed selection.
Page 128: Bank (Left Or Right)
SonTek – a Xylem brand 8.3.2.1 Bank (left or right) The Bank station type is used to create a station for both the left and right banks. The one noticeable difference between the Bank station type and other station types is the fact that no velocity measurement is performed.
Page 129: Open Water
SonTek – a Xylem brand Calculation Methods assumes that the velocity on the bank is zero when the depth is zero or against a boundary in the case of vertical bank. Island Edge station type parameters available on the Add Station screen consists of the following,...
Page 130: Table 8:6 - Open Water Station Type - Properties
SonTek – a Xylem brand current meters or floats, • WMO-No. 1044, Volume I – Fieldwork, 2010. Open Water station type parameters available on the Add Station screen consists of the following, a) Location, b) Depth, c) Station Type, d) Velocity Method, e) Correction Factor, f) Comment.
Page 131: Ice
SonTek – a Xylem brand 8.3.2.4 The Ice station type is used to create a station for under ice conditions, performing velocity measurements within a vertical at a station. Ice station type is used for discharge measurements where an ice layer covers the water surface. The Ice station type has specific parameters for incorporating parameters associated with the ice layer.
Page 132: Station Measurement (Wading Rod)
SonTek – a Xylem brand 8.3.3 Station Measurement (Wading Rod) Station Measurement is performed at each station that was created from the subdivision of the measurements section into number of stations. The station measurement consists of collecting a number of different parameters and variables required for the Discharge Calculation Methods.
Page 133 SonTek – a Xylem brand • The point velocity measurements are performed at a defined fractional depth based on the velocity method selected. Step 1 Station parameters defined for Velocity Measurement, e.g., parameters of station 2m defined for velocity measurements are the following,...
Page 134 SonTek – a Xylem brand Selecting the same fractional depth that was measured at the previous station improves the overall efficiency of the measurement. The example that is shown above shows a measurement where two-point method is performed at each station, keeping the order of measurements synced between stations improves the workflow.
Page 135: Review Point Measurement
SonTek – a Xylem brand Step 4 Fractional Depth Measurement screen displays graphical display of raw data of the following variables during a velocity measurement, a) Velocity, b) SNR, c) Temperature, d) Tilt, e) Vel. Angle, f) Battery. Figure 8:24 - Fractional...
Page 136: Review Station Measurement
SonTek – a Xylem brand g) Battery. h) To select a variable, i). Use the up or down arrow key to view a variable. i) To accept the velocity measurement, i). Press the Right Soft Key. j) To REDO velocity measurement, i).
Page 137: Table 8:9 - Review Station
SonTek – a Xylem brand Review Station screen consists of tabular summary of all measurements performed at the station, a) Review Station, Table 8:9. b) Velocity Distribution Plot, i). Point velocity measurements at station against theoretical 1/6 power law. ii). Graphical presentation of how velocity...
Page 138: Station Measurement (Pressure Sensor)
SonTek – a Xylem brand Variable Description Units Decimal measurement. Station discharge as a percent of the, • weighted rated discharge, of rated discharge entries in supplement data or, • measured discharge up to that station. Station or panel discharge, per discharge...
Page 139: Station Parameters
SonTek – a Xylem brand 8.3.4.1 Station Parameters The Station Parameters that need to be determined before a decision is made on what velocity method will be used are the station location with respect to the starting point on the tag line or measuring tape and the total water depth.
Page 140 SonTek – a Xylem brand Step 1 Station parameters defined for Velocity Measurement, e.g., parameters of station 2m defined for velocity measurements are the following, a) Station location: 2m, b) Water Depth: 1m, c) Station Type: “Open Water”, d) Velocity Method: Two Point.
Page 141 SonTek – a Xylem brand Step 4 Measurement screen display the point velocity measurements required at each fractional depth, e.g., the fractional depths for the two point method at station 2m with a water depth of 1m are the following, •...
Page 142 SonTek – a Xylem brand Pressure Sensor Tilt Bubble Automated Beam Check Pressure Sensor Depth Guide Velocity Angle Sampling Volume Figure 8:34 - Features of Setting Fractional Depth The Sampling Volume of the instrument is defined by the white vertical line displayed on the Beam Profile plot in Figure 8:34.
Page 143: Review Point Measurement
SonTek – a Xylem brand The conventions and graphic display features used for displaying Velocity and SNR raw data are defined under Raw Data Display. 8.3.4.3 Review Point Measurement Review Point Measurement is a report supplied at the end of each point velocity measurement.
Page 144: Review Station Measurement
SonTek – a Xylem brand Variable Description Units Decimal applied (if applicable). σV Standard error of X velocity component. m/s or ft/s Mean signal to noise ratio. Average of beam 1 and 2 SNR during point measurement. Flow angle relative to X direction. Angle...
Page 145: Table 8:11 - Review Station
SonTek – a Xylem brand c) To close the review station report, i). Press the Right Soft Key. ii). The software will navigate to the Data Collection Window. d) To Add station, i). Press the Left Soft Key. Figure 8:38 – Velocity Distribution...
Page 146: Data Collection Menu
SonTek – a Xylem brand Variable Description Units Decimal Vertical, X velocity component computed per velocity method. Velocity is despiked and mounting correction applied (if applicable). Mean standard error of X velocity component σV m/s or ft/s of all point measurements.
Page 147: Settings
SonTek – a Xylem brand k) To open or CLOSE the data collection menu, i). Press the Right Soft Key. 8.3.5.1 Settings The Settings menu option gives the user access to the initial measurement settings that were configured during the configuration of the discharge template.
Page 148: Discharge Summary
SonTek – a Xylem brand Add Gauge Height screen consists of the following variables required in supplemental data, a) Date, b) Time, c) Gauge Height, d) Rated Discharge, e) Temperature, f) Salinity, g) Comment. Figure 8:42 - Add Gauge Height c) To accept supplemental data, i).
Page 149: Station Summary
SonTek – a Xylem brand Variable Description Units Decimal panels, per discharge method. Average depth calculated from the total area Mean Depth m or ft and width. Total area calculated from all stations or Area or ft panels, per discharge method.
Page 150: Automated Beam Check
SonTek – a Xylem brand Variable Description Units Decimal Station location measured from the start m or ft location on tag line or measuring tape. Measured water depth or effective depth (for Depth m or ft Ice method). Type Station type (see Station Types).
Page 151: Ps Calibration (Pressure Sensor)
SonTek – a Xylem brand Automated Beam Checks performed during the discharge measurement are stored in FlowTracker2 file (.ft) that was created for the measurement site. 8.3.5.6 PS Calibration (Pressure Sensor) The PS Calibration function in the data collection menu allows the user to perform Pressure Sensor Calibration during any stage between point velocity measurements.
Page 152: Discard Measurement
SonTek – a Xylem brand Step 1 Confirmation screen of Complete Measurement function confirms if the user wants to close the measurement file. User will not be able to add stations or make any changes to the data c) To confirm complete measurement operation, ii).
Page 153: Go To Home Screen
SonTek – a Xylem brand Warning screen of Discard Measurement function displays the warnings associated with discarding measurement file. a) To DISCARD measurement, i). Press the Right Soft Key. ii). The software will navigate to the Main Menu. b) To...
Page 154: Table 8:14 - Measurement Summary
SonTek – a Xylem brand Table 8-14 - Measurement Summary Variable Description Units Decimal File type based on discharge or general mode File Type Site name populated by user Site Name Site number populated by user Site Number Operator name populated by user...
Page 155: General Measurement
SonTek – a Xylem brand Section 9. General Measurement General Measurement is the measurement technique involved in collecting velocity data based on the General Mode (see Data Collection Modes). The data collection framework designed for collecting velocity data is detailed in Software Flow Diagram.
Page 156: New File Template
SonTek – a Xylem brand The New File Type screen consists of the following options, a) Discharge, b) General, c) To select discharge mode, i). Use up or down scroll arrows keys to select Discharge and press enter key. d) The software will navigate to the New File Template screen.
Page 157: Automated Beam Check
SonTek – a Xylem brand information is recorded in each measurement file and used in both the File Naming Folder Naming conventions. • Existing templates created under “Device Configuration”, parameters will be prepopulated from File Properties information that was captured, •...
Page 158: Start Automated Beam Check
SonTek – a Xylem brand Automated Beam Check can be performed during any stage of the data collection process. The Automated Beam Check functions are available before data collection start and during velocity measurement from the “Data Collection Menu” (see...
Page 159 SonTek – a Xylem brand Quality Control Criteria QC Warning Graphic Display • The SNR is checked as sufficient for reliable data collection, • Each beam SNR is compared to be sure all beams perform equally, • A warning is issued for low SNR <...
Page 160: Data Collection
SonTek – a Xylem brand Table 9-2 - Automated Beam Check Display Beam Line Color Keypad Key Beam1 Beam2 Blue Beam3 Green All Beams c) To select a Quality Control Criteria, i). Use up or down scroll arrows keys to view quality control criteria.
Page 161: Add Station
SonTek – a Xylem brand Data Collection Window screen of the consists of the following, a) Station Management area defined in rectangle, b) Add Station, c) Data Collection Menu (Menu). d) To add a station, i). Press the Left Soft Key.
Page 162: Delete Station
SonTek – a Xylem brand Parameter Default Decimals Units Required Measurement Depth empty m or ft Comment empty 9.3.1.2 Delete Station Deleting a station is performed from the Data Collection Window by selecting the station within the viewable window. The station delete process is not reversible and the user must ensure that the correct station is selected.
Page 163: Point Velocity Measurement
SonTek – a Xylem brand 9.3.2.1 Point Velocity Measurement Point Velocity Measurement in General mode is not bound to any measurement techniques and or guidelines as required in Discharge mode. The location of the station, number of point velocity measurements and depth of point velocity measurements is dependent on the user requirements.
Page 164 SonTek – a Xylem brand Top Setting wading rod Tilt Bubble Automated Beam Check Wading rod setting Velocity Angle Sampling Volume Figure 9:13 - Features of Setting Measurement Depth The Sampling Volume of the instrument is defined by the white vertical line displayed on the Beam Profile plot in Figure 9:13.
Page 165: Review Point Measurement
SonTek – a Xylem brand 9.3.2.2 Review Point Measurement Review Point Measurement is a report supplied at the end of each point velocity measurement. The report consists of two components, tabular summary of numerical calculations performed on the raw data collected and graphical display of raw data.
Page 166: Review Station Measurement
SonTek – a Xylem brand Variable Description Units Decimal Mean Z velocity component of all samples. Vel. Z Velocity is despiked and mounting correction m/s or ft/s applied (if applicable). σV. X Standard error of X velocity component. m/s or ft/s σV.
Page 167: Station Measurement (Pressure Sensor)
SonTek – a Xylem brand Variable Description Units Decimal Mean X velocity component of all samples. Vel. X Velocity is despiked and mounting correction m/s or ft/s applied (if applicable). Mean Y velocity component of all samples. Vel. Y Velocity is despiked and mounting correction m/s or ft/s applied (if applicable).
Page 168 SonTek – a Xylem brand Step 1 Station parameters defined for Velocity Measurement, e.g., parameters of station defined for velocity measurement are the following, a) Location X: 1.534m, b) Location Y: 2.978m, c) Water Depth: 1,125m, d) Measurement Depth: 0.6m, e) Velocity Method: Two Point, f) Comment.
Page 169 SonTek – a Xylem brand Step 4 Pressure Sensor (PS) Instrument Depth screen allows the user to perform instrument depth measurement. The tilt sensor or bubble should be used to keep the instrument vertical. a) To perform Instrument Depth Measurement, i).
Page 170: Review Point Measurement
SonTek – a Xylem brand close to the sampling volume. Step 4 Velocity Measurement screen displays graphical display of raw data of the following variables during a velocity measurement, a) Velocity, b) SNR, c) Temperature, d) Tilt, e) Vel. Angle,...
Page 171: Table 9:6 - Review Point Measurement
SonTek – a Xylem brand Measurement e) Tilt, f) Velocity Angle, g) Probe Depth, h) Battery, i) Pressure. j) To select a variable, i). Use the up or down arrow key to view a variable, k) To accept the velocity measurement, i).
Page 172: Review Station Measurement
SonTek – a Xylem brand Variable Description Units Decimal Temp Mean temperature during measurement °C or °F Mean water depth from water surface during Depth m or ft point measurement Mean water pressure during point Pressure dbar measurement 9.3.3.3 Review Station Measurement Review Station measurement is a tabular report that is available from the data collection window at the completion of point velocity measurement of a station.
Page 173: Data Collection Menu
SonTek – a Xylem brand Variable Description Units Decimal σV. Y Standard error of Y velocity component. m/s or ft/s σV. Z Standard error of Z velocity component. m/s or ft/s SNR. 1 Signal to noise ratio of Beam 1 SNR.
Page 174: Settings
SonTek – a Xylem brand 9.3.4.1 Settings The Settings menu option gives the user access to the initial measurement settings that were configured during the configuration of the general template. Settings screen consists of the following functions for configuring measurement settings,...
Page 175: Automated Beam Check
SonTek – a Xylem brand Variable Description Units Decimal component. Average station velocity, Y velocity component Vel. Y Mean m/s or ft/s of all stations. Minimum station velocity, Y velocity Vel. Y Min m/s or ft/s component. Maximum station velocity, Y velocity Vel.
Page 176: Complete Measurement
SonTek – a Xylem brand Step 1 PS Calibration screen allows the user to perform pressure sensor calibration. The user is required to remove the probe from the water. a) To perform PS Calibration, i). Press the Right Soft Key.
Page 177: Discard Measurement
SonTek – a Xylem brand Complete Measurement Step2 Confirmation screen with Quality Control warning messages based on quality control checks performed on measurement data. a) To accept quality control warning messages, i). Press the Right Soft Key. b) To CANCEL complete measurement operation, i).
Page 178: Go To Home Screen
SonTek – a Xylem brand 9.3.4.7 Go to Home Screen The Go to Home Screen function will navigate the software to the main menu and the user will have the ability to access software functions that are not related to General Mode function.
Page 179 SonTek – a Xylem brand Variable Description Units Decimal General comment captured against Comment measurement Average station velocity, X velocity component Vel. X Mean m/s or ft/s of all stations. Minimum station velocity, X velocity Vel. X Min m/s or ft/s component.
Page 180: Flowtracker2 Hardware
SonTek – a Xylem brand Section 10. FlowTracker2 Hardware 10.1. ADV Probe The FlowTracker2 ADV Probe and internal sensors that were implemented specifications are listed in Table 10:1, Table 10-1- ADV Probe Specifications Hardware Specification Velocity Range ±0.001 to 4.0m/s (0.003 to 13ft/s) Velocity Resolution 0.0001m/s (0.0003ft/s)
Page 181: Handheld
SonTek – a Xylem brand 10.2. Handheld The FlowTracker2 Handheld and internal sensors implemented specifications are listed Table 10:2, Table 10-2- Handheld Specifications Hardware Specification Input Battery Voltage 8 - 12 VDC Alkaline 8 x size AA/LR6 Alkaline batteries Power...
Page 182: Cables And Connectors
SonTek – a Xylem brand Hardware Specification Alkaline -20° to 45°C (-4°F to 113°F) Operating NiMH -20° to 50°C (-4°F to 122°F) Storage -30° to 70°C (-22°F to 158°F) Temperature Remove batteries from FlowTracker2 handheld if storage temperatures exceed the operating temperature of Alkaline and NiMH batteries as stipulated above.
Page 183: Pc System Requirements
SonTek – a Xylem brand o CE (per IEC/EN 61010-1:2010 3rd ed, EMC directive 2004/108/EC EN61326-1) for AA Alkaline batteries, FCC, IP-67 • For P/N FT2-HH-2 o CE (per IEC/EN 61010-1:2010 3rd ed, EMC directive 2004/108/EC EN61326-1) for AA Alkaline batteries, FCC, IP-67...
Page 184: Operational Considerations
SonTek – a Xylem brand Section 11. Operational Considerations The procedures outlined for operating of the FlowTracker2 instrument and the maintenance requirements should be followed to ensure that the instrumentation is in a working condition. The user should follow operating instructions as outlined in this manual, failure to do so can void manufacturer’s warranty.
Page 185 SonTek – a Xylem brand The communication window displays the following instructions to enable connection between the handheld and FlowTracker2 desktop software, a) Open FlowTracker2 desktop software, b) Select “Device” menu option, c) Is USB cable connected or Bluetooth enabled, d) Select communication medium.
Page 186: Upgrading Adv Firmware
SonTek – a Xylem brand b) Upgrade progress Status i). The FlowTracker2 desktop software gives progress status in percentage of the upgrade. 11.1.2 Upgrading ADV Firmware The ADV firmware upgrade is performed separately from the FlowTracker2 handheld software upgrade. The user is required to either request system information or initiate data collection from the ADV to activate the firmware upgrade process.
Page 187: Probe Mounting Bracket
SonTek – a Xylem brand Handheld Mounting Universal Rod mounting bracket to connect the handheld to the universal wading rod. d) A mounting bracket compatible with a 20mm universal-style wading rod is available from SonTek. e) Neck/shoulder strap for the handheld which fits the threaded insert is available from SonTek.
Page 188: Routine Maintenance
SonTek – a Xylem brand Universal Rod J-Bracket to connect the 2D or 2D/3D Flowtraker2 probe to the universal wading rod. d) A J-Bracket compatible with a 20mm universal- style wading rod is available from SonTek. Figure 11:8 – Universal Rod J- Bracket 11.3.
Page 189: Transducers
SonTek – a Xylem brand In the case where the handheld was submerged under water or where it is covered in mud and need to be rinsed, the following guidelines should be followed, a) Do not remove the probe cable or battery cap while the handheld is under water or drenched.
Page 190: O-Rings
SonTek – a Xylem brand 11.3.4 O-rings The FlowTracker2 handheld makes use of two O-ring seals and it is important that the following guidelines are followed. 11.3.4.1 Housing a) The handheld is designed to withstand temporary submersion, but is not intended for underwater operation.
Page 191: Seeding
SonTek – a Xylem brand 11.4. Seeding 11.4.1 Scattering Material If FlowTracker2 velocity data appears “noisy”, the most common cause is a lack of scattering material in the water. a) Acoustic Doppler Velocimeters require scattering material for velocity measurements (see...
Page 192: Troubleshooting
SonTek – a Xylem brand For most applications, a more practical seeding material is lime or pulverized limestone (the chalk commonly used on athletic fields). • Large bags are inexpensive and readily available from most hardware stores, • While not perfect, the acoustic performance is sufficient for most applications, •...
Page 193: Cannot Retrieve Data From Internal Recorder
SonTek – a Xylem brand b) If using Bluetooth connection, i). Verify the PC’s Bluetooth function is turned on and enabled. ii). In the FlowTracker2 software, ensure the instrument serial number is typed in correctly, in the “Connect” dialog box.
Page 194: Health And Safety
SonTek – a Xylem brand design process of the software to minimize the possibility of this occurring. The recovery mode process are described under the following steps, a) Power the device ON, b) Hold the '5' button, c) Recovery mode will load (you need to keep holding '5' until it loads),...
Page 195: Communication
SonTek – a Xylem brand 11.6.2 Communication Field communication is essential for operational purposes and it improves the Health and Safety process. It is suggested that the following criteria be followed where feasible, a) Contact office before and after measurement is completed. Normally this is only...
Page 196 SonTek – a Xylem brand ii). Stationary Measurement. FlowTracker2 User’s Manual (January 2019)
Page 197: Flowtracker2 File Format
SonTek – a Xylem brand Section 12. FlowTracker2 File Format 12.1. FlowTracker2 JSON File The FlowTracker2 measurement file was developed on the JSON format. The handheld and desktop software uses the FlowTracker2 measurement files structure (see Table 4:2) as the primary format for the storage of system information, configuration, raw data, calculations and post processing.
Page 198: Measurement File Framework
SonTek – a Xylem brand 12.1.1 Measurement File Framework FlowTracker2 User’s Manual (January 2019)
Page 199: Measurement File Structure
SonTek – a Xylem brand 12.1.2 Measurement File Structure DataFile Base Type Description Main Tier Tier Tier Tier Tier Tier Properties: DataFileProperties StartTime DateTime EndTime DateTime SiteNumber String SiteName String Operator String Comment String LocalTimeUtcOffset TimeSpan CalculationsEngine CalculationsEngine Configuration: DataCollectionMode...
Page 200 SonTek – a Xylem brand DataFile Base Type Description Main Tier Tier Tier Tier Tier Tier StationType StationType VelocityMethod VelocityMethod ManualVelocity Double (optional) IceThickness Double (optional) WaterSurfaceToBottomOfIce Double (optional) WaterSurfaceToBottomOfSlu Double (optional) CorrectionFactor Double Comment String PointMeasurements: Guid List<PointMeasurement>(opti FractionalDepth...
Page 201 SonTek – a Xylem brand DataFile Base Type Description Main Tier Tier Tier Tier Tier Tier MeasurementValueSummary Double Average Double StandardDeviation Double Count Int32 Pressure: Double MeasurementValueSummary Double Average Double StandardDeviation Double Count Int32 BatteryVoltage: Double MeasurementValueSummary Double Average Double...
Page 202 SonTek – a Xylem brand DataFile Base Type Description Main Tier Tier Tier Tier Tier Tier Calculations: Warnings QualityControlWarnin PointMeasurementCalculations Velocity XyzData VelocityStandardError XyzData FlowAngle Double BeamData SnrStandardDeviation BeamData Samples Int32 Spikes Int32 Tilt Double BoundaryAvoidance BoundaryAvoidanceS tatus Diagnostics: Boundary: BoundaryData...
Page 203 SonTek – a Xylem brand DataFile Base Type Description Main Tier Tier Tier Tier Tier Tier > (optional) RatedDischarge Double Temperature Double Salinity Double Comment String Calculations: Warnings QualityControlWarnin DataFileCalculations Area Double Discharge Double Width Double Velocity XyzData VelocityStandardError XyzData...
Page 204 SonTek – a Xylem brand Point Measurement Details Base Type Description Main Tier Tier Tier Tier Tier Guid SamplingRate Double Samples: Time DateTime ReadOnlyCollection<Sample> Adv: AdvData Velocity XyzData Double Sensors: SensorData Temperature Double SoundSpeed Double Pressure Double Voltage Double Accelerometer...
Page 205 SonTek – a Xylem brand Point Measurement Details Base Type Description Main Tier Tier Tier Tier Tier ProbeDepths: Double ReadOnlyCollection FlowTracker2 User’s Manual (January 2019)
Page 206 SonTek – a Xylem brand Beam Check Base Type Description Main Tier Tier Tier Tier Tier Guid HandheldInfo: HandheldInfo SerialNumber String SoftwareVersion String BoardsInfo String CpuSerialNumber String OperatingSystem String Settings Object (optional) ProbeInfo: ProbeInfo InstrumentType String SerialNumber String FirmwareVersion String...
Page 207 SonTek – a Xylem brand XyzData Base Type Description Main Tier Tier Tier Tier Tier Double Double Double BeamData Base Type Description Main Tier Tier Tier Tier Tier Beam0 Double Beam1 Double Beam2 Double GpsRecord Base Type Description Main Tier...
Page 208: Flowtracker2 Csv Output
SonTek – a Xylem brand 12.2. FlowTracker2 CSV Output Comma Separated Values (CSV) file format is a basic output designed for easy access and interpretation of the data with the most common variables of FlowTracker2 incorporated. The variables included in the CSV format are similar to Original FlowTracker2 ASCII exports and existing users will be familiar with the layout and content.
Page 209: Csv Variables
SonTek – a Xylem brand 12.2.2 CSV Variables The Variables that are exported in each of the Comma Separated Values files are defined in the following tables with the variable name, description and applicability to either the Discharge or General Modes.
Page 210: Table 12:4 - Raw Data File Variables
SonTek – a Xylem brand Variable Mode Description Discharge equation used for discharge calculation Configuration_Discharge_Equation in measurement section Specify type of external discharge used to Configuration_Discharge_Reference reference discharge measurement Configuration_Discharge_Quality_Contro Max station discharge for quality control process l_Max_Station_Discharge_For_Warning Configuration_Discharge_Quality_Contro Max depth change for quality control process...
Page 211 SonTek – a Xylem brand Variable Mode Description Site_Number D, G Number of measurement site Local_Start_Time D, G Local start time of measurement Local_End_Time D, G Local end time of measurement Local_Time_UTC_Offset_Hours D, G Local time offset for UTC in hours...
Page 212 SonTek – a Xylem brand Variable Mode Description standard error. Mean Vy Standard Error is the mean of the Y velocity standard error of all point velocity measurements. Mean_VzErr Mean Vz Standard Error of each station Z velocity standard error.
Page 213 SonTek – a Xylem brand Variable Mode Description Discharge_Uncertainty_ISO Discharge_Uncertainty_ISO Overall Overall Accuracy Accuracy Depth Depth Velocity Velocity Width Width Method Method #_Stations Number of Stations Discharge_Uncertainty_IVE Discharge_Uncertainty_IVE Overall Overall Accuracy Accuracy Depth Depth Velocity Velocity Width Width Supplemental_Data Supplemental_Data...
Page 214: Table 12:6 - Summary File Variables
SonTek – a Xylem brand Variable Mode Description Measurement depth location, as fraction of D, G the effective depth %Dep Point measurement depth, measured form the D, G MeasD water surface Number of samples in measurement; one D, G sample collected per second...
Page 215 SonTek – a Xylem brand Variable Mode Description Station Number D, G Discharge Measurement Method D, G Method Measurement depth location, as fraction of D, G the effective depth %Dep Point measurement depth, measured form the D, G MeasD water surface Number of samples in measurement;...
Page 216 SonTek – a Xylem brand Variable Mode Description measurement FlowTracker2 User’s Manual (January 2019)
Page 217: Original Flowtracker Ascii Vs Json
SonTek – a Xylem brand 12.3. Original FlowTracker ASCII vs JSON Data File Variable Comment Next of Kin Variable Base Type Properties: DataFileProperties StartTime DateTime DIS.StartDateAndTime EndTime DateTime last DAT.ymdhms, or other SiteNumber String SiteName String DIS.SiteName Operator String DIS.Operators...
Page 218 SonTek – a Xylem brand Data File Variable Comment Next of Kin Variable Base Type SixPoint Boolean VerticalVelocityCurve Boolean HandheldInfo: HandheldInfo Stations: List<Station> Guid Not exported CreationTime DateTime DIS.StartDateAndTime plus first DIS.Clock Exported when no point measurements at this station.
Page 219 SonTek – a Xylem brand Data File Variable Comment Next of Kin Variable Base Type StandardDeviation Double Calculated from DAT file samples Not exported Count Int32 Calculated from DAT file samples Not exported DespikedVelocity: Double Calculated from DAT file samples...
Page 220 SonTek – a Xylem brand Data File Variable Comment Next of Kin Variable Base Type MeasurementValueSummary Double Not exported Average Double Export StandardDeviation Double Not exported Count Int32 Not exported ProbeDepth: Double Not exported MeasurementValueSummary Double Not exported Average Double...
Page 221 SonTek – a Xylem brand Data File Variable Comment Next of Kin Variable Base Type VelocityResolution Double Not exported Beams: ReadOnlyCollection< NoiseLevel Double BeamStatistics> PeakLocation Double PeakLevel Double HandheldInfo: SoftwareVersion: String DIS.SoftwareVer Not exported (pmd value exported) HandheldInfoSummary WadingRod WadingRod WadingRod.Unknown...
Page 222 SonTek – a Xylem brand Data File Variable Comment Next of Kin Variable Base Type DIS.MeanBoundary SmartQC, plus SmartQC. Area Double DIS.TotalArea Discharge Double DIS.TotalDischarge Width Double DIS.TotalWidth Velocity XyzData DIS.MeanVelocity DIS.MeanVelocityVx, DIS.MeanVelocityVy in General Mode) VelocityStandardError XyzData DIS.MeanVerr Depth Double DIS.MeanDepth...
Page 223 SonTek – a Xylem brand Point Measurement Details Variable Comment Next of Kin Variable Base Type Guid Not exported SamplingRate Double 1.0/CTL.SampleInterval Not exported Samples: Time DateTime DAT.ymdhms ReadOnlyCollection<Sample> Adv: AdvData Velocity XyzData DAT.VelX, VelY, VelZ Double DAT.Snr1, Snr2, Snr3...
Page 224 SonTek – a Xylem brand Point Measurement Details Variable Comment Next of Kin Variable Base Type SerialNumber String CTL.AdvSerialNumber Not exported FirmwareVersion String CTL.CpuFirmwareVersion Not exported NumberOfBeams Int32 CTL.AdvNumberOfBeams Not exported IsPressureSensorPresent Boolean PressureSensorLocation XyzData ProbeBottomZ Double NominalBeamStatistics: NoiseLevel Double Not exported ReadOnlyCollection<BeamStatistic...
Page 225: Principle Of Operations
SonTek – a Xylem brand Section 13. Principle of Operations 13.1. FlowTracker2 Overview The FlowTracker2 Handheld ADV is a single-point Doppler current meter designed for field velocity measurements. The FlowTracker2 uses the proven Doppler technology of the SonTek Acoustic Doppler Velocimeter (ADV), the leading high-resolution velocity sensor.
Page 226: Bistatic Doppler Current Meters
SonTek – a Xylem brand b) The velocity, V, represents the relative speed between source and receiver (motion that changes the distance between the two). i). If the distance between the two objects is decreasing, frequency increases. ii). If the distance is increasing, frequency decreases.
Page 227: Signal To Noise Ratio Profile
SonTek – a Xylem brand Figure 13:1 - 2D Side Looking Probe and Sampling Volume 13.3.3 Signal to Noise Ratio Profile The signal to noise ratio versus time profile plot for the FlowTracker2 is shown in Figure 13:2. a) The horizontal axis shows time after the transmit pulse.
Page 228: Pulse-Coherent Processing
SonTek – a Xylem brand Center of Receiver Axis Ambient Noise Level Time after transmit pulse Figure 13:2 - Signal to Noise Ratio Profile 13.4. Pulse-Coherent Processing This section does not attempt to provide a detailed description of pulse-coherent processing. It presents a simple overview with a focus on how this affects FlowTracker2 operation.
Page 229: Beam Geometry And 3D Velocity Measurements
SonTek – a Xylem brand • When working near boundaries or underwater obstacles, the system may need to adapt its operation to avoid acoustic interference. • This is called boundary adjustment and is performed automatically by the system at each measurement location.
Page 230: Velocity Data Coordinate System
SonTek – a Xylem brand d) The physical size of the sampling volume is a cylinder 6 mm (0.24 in) in diameter by 9mm (0.35 in) in length (see Figure 13:1). 13.7. Velocity Data Coordinate System FlowTracker2 velocity measurements are reported using a right-hand Cartesian coordinate system relative to the probe.
Page 231: Flowtracker2 Data
SonTek – a Xylem brand 13.8. FlowTracker2 Data 13.8.1 Basic Sampling Strategy The FlowTracker2 collects a burst of velocity data at each measurement location. The sampling strategy for the FlowTracker2 instruments is summarized in Table 13:1. Original FlowTracker sampling strategy is included for comparison.
Page 232: Factors Influencing Accuracy
SonTek – a Xylem brand d) The averaging time required to determine the true mean velocity at a given location is a function of the real variations in velocity at that site. 13.8.3.2 Factors Influencing Accuracy Two factors influence accuracy of FlowTracker2 velocity data – sound speed and probe geometry.
Page 233: Sound Speed
SonTek – a Xylem brand b) The standard FlowTracker2 uses a 2D side-looking probe. The sampling volume is located 10 cm (4 in) to the side of the probe, and can operate in as little as 2 cm (1 in) of water.
Page 234: Flow Interference
SonTek – a Xylem brand • We must assume that the movement of the particles in the water is representative of the movement of the water itself, • If there are no particles (other than the water molecules themselves) present in the water, Doppler current meters will not work.
Page 235: Mounting Correction
SonTek – a Xylem brand c) FlowTracker probes have been tested and have shown negligible flow interference with the probe as much as 40-50° away from the preferred alignment. At higher angles, the FlowTracker may see flow interference in the sampling volume.
Page 236: Dynamic Pressure (Pressure Sensor)
SonTek – a Xylem brand 13.12. Dynamic Pressure (Pressure Sensor) Dynamic pressure is the kinetic energy per unit volume of fluid and affects the pressure sensor measurements performed by the FlowTracker2 ADV internal pressure sensor in flowing water. The extent of the dynamic pressure affecting the pressure sensor measurements is directly related to the water velocity.
Page 237 SonTek – a Xylem brand If we substitute the dynamic pressure can be computed Equation 13:3 Equation 13:2 using Equation 13:4 �� = 0.5 × �� × (�� × ��) Equation 13:4 – Dynamic Pressure using AdvWaterSpeed �� Knowing the Dynamic Pressure (Pd) and the Total Pressure (P ) –...
Page 238: Flowtracker2 Desktop Software
SonTek – a Xylem brand Section 14. FlowTracker2 Desktop Software 14.1. Overview of Software Features and Functions The FlowTracker2 Desktop Software is designed to work in conjunction with the FlowTracker2 Handheld ADV. With this software, you will be able to: •...
Page 239: Installing Software
SonTek – a Xylem brand 14.2. Installing Software The FlowTracker2 Desktop Software installation file is included with the USB thumb drive that ships with your FlowTracker2 Handheld ADV. It is also available from the SonTek website (http://www.sontek.com). Run the Windows Installer Package (.msi) file corresponding to the type of computer on which you wish to install the software (32-bit or 64-bit).
Page 240: Changing Settings
SonTek – a Xylem brand 14.3. Changing Settings The Settings button opens a dialog (shown in Figure 14:4) providing options to change various software and user settings. 14.3.1 User Interface Tab Changing Language (Settings > User Interface > Language) Figure 14:4. Changing User Interface Settings 14.3.1.1...
Page 241: Changing Scale And Font Size (Settings > User Interface > Scale)
Changing Scale and Font Size (Settings > User Interface > Scale) SonTek – a Xylem brand 14.3.1.2 The scale of all the text and buttons can be changed through the User Interface tab in the Settings dialog. The font size and buttons can be increased up to 150% and decreased down to 60%.
Page 242: Show Download Options Dialog (Settings > General > Show Download Options Dialog)
Show Download Options Dialog (Settings > General > Show download options SonTek – a Xylem brand dialog) 14.3.2.2 When downloading data files from the FlowTracker2 Handheld ADV, a dialog with various options appears by default. These options are described in Download Data Check for Crash Reports and Send to SonTek Support (Settings >...
Page 243: Changing Software Units (Settings > Units)
SonTek – a Xylem brand 14.3.3 Units Tab Changing Software Units (Settings > Units) Figure 14:7. Changing Units 14.3.3.1 The units displayed by the software for various parameters can be changed independently. Table 14:1 summarizes the changeable parameters and what unit options are available.
Page 244: Changing Software Display Decimals (Settings > Units)
SonTek – a Xylem brand Measurement Unit Options meters per second (m /s), Liters per second (L/s), Megaliters per day (ML/day), Million UK gallons per day (Million UK gallons/day), Million US gallons per day (Million US gallons/day), UK gallons per minute...
Page 245: Icon Image (Settings > Pdf Format > Pdf Icon Image File Location)
SonTek – a Xylem brand 14.3.4 PDF Format Icon Image (Settings > PDF Format > PDF icon image file location) Figure 14:8. PDF Format 14.3.4.1 The “PDF Icon Image File Location” allows an organization to incorporate their logo in the PDF Discharge Measurement Summary report. The image format accepted for organization logo is “png”.
Page 246: Header Text (Settings > Pdf Format > Pdf Header Text)
SonTek – a Xylem brand The PDF icon image height is user configurable or based on FlowTracker2 default Header Text (Settings > PDF Format > PDF Header Text) settings. It is important to save the configuration changes for implementation. 14.3.4.3 The “PDF Header Text”...
Page 247 SonTek – a Xylem brand • Configuration Changes. FlowTracker2 User’s Manual (January 2019)
Page 248: Utilities
SonTek – a Xylem brand 14.4. Utilities FlowTracker1 Import (Utilities > FlowTracker1 Import) Figure 14:9. Utilities Dialog 14.4.1 This is a conversion tool allowing users to open measurements taken by the Original FlowTracker Handheld ADV instrument with the .wad extension. Please see Opening Original FlowTracker Handheld ADV Data Files (.WAD files)
Page 249: Run Translator (Utilities > Run Translator)
Run Translator (Utilities > Run Translator) SonTek – a Xylem brand 14.4.2 Figure 14:10 Run Translator Dialog The Run Translator Dialog (Figure 14:10) allows a user to customize a language translation to suit specific purposes or to translate to a language not included in the standard language list.
Page 250: New General Template (Utilities > New General Template)
SonTek – a Xylem brand existing or new template upload to FlowTracker2 Handheld device, please refer to New General Template (Utilities > New General Template) Uploading and Downloading Templates. 14.4.5 To create a new General Template (template associated with General Mode measurements), follow the same instructions in the previous section for creating a Multiple Templates (Utilities >...
Page 251: Connecting To The Flowtracker2 Handheld Adv
SonTek – a Xylem brand (Figure 14:13) allows a user Set Input Units of CSV File to Create Template Files Dialog to define the units of the parameters populated in the CSV file. The dialog box also give the option to “Ignore header lien in CSV file” and “Overwrite existing template files”.
Page 252: Usb Connection (Device > Usb)
USB Connection (Device > USB) SonTek – a Xylem brand 14.5.1 To connect to the FlowTracker2 Handheld ADV using the USB to micro-USB connection, a) Plug the micro-USB connector to the communications connector at the bottom of the Handheld unit (see Figure 1:1).
Page 253: Device Menu And Functions
SonTek – a Xylem brand c) Ensure that your computer Bluetooth radio (wireless communications) is turned d) Enter the full serial number of your FlowTracker2 device in the Input box that appears (see Figure 14:16). e) Click the Connect button. A dialog will appear with updates on the Bluetooth connection status.
Page 254: Download Data Files (Device > [Choose Your Connection] > Download)
SonTek – a Xylem brand Function buttons when connected to FlowTracker2 Download Data Files (Device > [Choose your connection] > Download) Figure 14:17. Device Menu after successful connection 14.6.1 To download data files, you must click on a file or multiple files.
Page 255 SonTek – a Xylem brand Figure 14:18. Download Data dialog a) The Download Location can be changed by clicking the folder button on the right. b) The Folder Organization option dictates with what type of folder structure data files are stored: i).
Page 256: Delete Data Files (Device > [Choose Your Connection] > Delete)
SonTek – a Xylem brand d) Checking the Remove Downloaded Files From Device box will delete any files from the handheld recorder that have been downloaded onto the PC. e) Checking the Do not show again box will save your downloading preferences, and data will automatically be downloaded according to those preferences when the Download button is pushed.
Page 257: Uploading And Downloading Templates (Device > [Choose Your Connection] > Templates)
SonTek – a Xylem brand Uploading and Downloading Templates (Device > [Choose your connection] > Figure 14:19. Firmware Upgrade Alert Templates) 14.6.4 The ability to use templates is a new feature in the FlowTracker2 Handheld ADV operation, allowing the user to easily store and load data that are applicable to multiple measurements (such as site name, site number, operator, etc.).
Page 258: Custom Localization
SonTek – a Xylem brand To upload an existing template from your computer to the FlowTracker2, click Templates > Upload to Device, and select the appropriate .ft_template file. The template file will be added to the list of templates on your device that appears.
Page 259: Opening Flowtracker2 Handheld Adv Data Files (.Ft Files)
SonTek – a Xylem brand Figure 14:20. + Tab to open additional data files The FlowTracker2 Desktop software is capable of opening FlowTracker2 (.ft) files only. In order to open files from the Original FlowTracker (.wad), please follow the steps specifically for .wad files in subsequent sections.
Page 260 SonTek – a Xylem brand The FlowTracker2 BeamCheck (.ft_beamcheck) file results from a user requesting a BeamCheck to be done separately from a measurement. To open a .ft_beamcheck file, follow the same instructions for opening a .ft file, but select “Beamcheck file (*.ft_beamcheck)”...
Page 261: Opening Flowtracker2 Template Files (.Ft_Template)
SonTek – a Xylem brand Figure 14:22. Viewing a Beamcheck File 14.7.3 Opening FlowTracker2 Template Files (.ft_template) The FlowTracker2 software allows you to open and edit template files separately from the Handheld unit. To open a template (.ft_template) file, follow the same instructions for opening a .ft file, but select “FlowTracker template file (*.ft_template)”...
Page 262: Opening Original Flowtracker Handheld Adv Data Files (.Wad Files)
SonTek – a Xylem brand When a Discharge template is opened, the screen shown in Figure 14:23 will appear. Fields that can be edited will show input boxes. When a General Mode template is opened, similar fields to the Discharge template will appear, with the exception that Discharge Settings, Station Warning Settings, and Displayed Velocity Methods fields will not be available.
Page 263: Table 14:2. Original Flowtracker File Format Import
SonTek – a Xylem brand Figure 14:24. Original FlowTracker .wad File Import Tool The FlowTracker2 software supply two options to import Original FlowTracker data from either the ASCII or WAD files, shown in Figure 14:24. Figure 14:25. FlowTarcker1 Import The criteria associated with each file format import are summarized in...
Page 264: Overview Of View Data Options
SonTek – a Xylem brand WAD: Only WAD files generated post 2006 firmware can be converted. The import process shown in Figure 14:25. allows the user to import FlowTarcker1 Import a single or multiple Original FlowTracker files at a time, •...
Page 265: Measurement Summary Pane
SonTek – a Xylem brand Figure 14:26. Layout of Data Viewing Window and Section Tab 14.8.1 Measurement Summary Pane The Measurement Summary Pane values are summarized in Table 14:3. Table 14-3. Measurement Summary Pane Category Value Description File name File name...
Page 266: Main Viewing Pane
SonTek – a Xylem brand Category Value Description Overall Total uncertainty Increase or decrease size of all Chart size + / Chart size - plots within software View Controls Reset all Reset size of all plots to default 14.8.2 Main Viewing Pane The main viewing pane consists of seven tabular views in Discharge Mode, and 6 tabs in General Mode.
Page 267: Stations
SonTek – a Xylem brand 14.8.2.2 Stations Figure 14:27. Layout of Stations Tab. The Stations tab (Figure 14:27) shows detailed data for each station. The station in active view is highlighted in blue. Clicking on a different station line will highlight that station, and its available data will be displayed.
Page 268 SonTek – a Xylem brand Edit Value Description Orig. Indicates whether the station is used Use Point in the discharge calculation. This feature can be edited. Station # Station number Location Station location along tag line Depth at each station (from user input...
Page 269: Samples
SonTek – a Xylem brand Edit Value Description Orig. satellites was recorded GPS fix quality if GPS fix was Fix quality recorded HDOP HDOP if GPS fix was recorded • Automatic beam check – For each station, the mean beam check data is displayed below the station information summary table.
Page 270: Area
SonTek – a Xylem brand • Pressure (Pressure Sensor) – Pressure measured during a station point measurement spanning chosen sampling period (only available , • Sound Speed – Sound Speed calculated during a station point measurement spanning chosen sampling period, •...
Page 271: Sensors
SonTek – a Xylem brand • Width – the transect Width plotted with respect to the tagline location of each station • Velocity angle – the angle of the flow with respect to the X-axis of the ADV probe plotted with respect to the tagline location of each station. The mean is calculated over all station samples.
Page 272: Supplemental Data
SonTek – a Xylem brand 14.8.2.6 Supplemental Data Figure 14:31. Layout of Supplemental Data Tab Any supplemental data added during the measurement will appear in the Supplemental Data tab (Figure 14:31). Multiple supplemental data entries can be available during a measurement.
Page 273: Diagnostics
SonTek – a Xylem brand 14.8.2.7 Diagnostics Figure 14:32. Layout of Diagnostics Tab The Diagnostics tab (Figure 14:32) shows data pertaining to the quality of the measurement. The following plots are available: • SNR – the mean SNR at the ADV sample volume over all samples and all beams at each station.
Page 274: Summary
SonTek – a Xylem brand 14.8.2.8 Summary The Summary tab shows a comprehensive overview of the measurement. The information presented in the other tabs and panes are summarized in this tab. Please refer to other sections for descriptions of the specific values presented in this tab.
Page 275 SonTek – a Xylem brand Category Edit Value Description will use measured temperature in velocity calculation. If value is entered, this value will be used. Sound speed used in velocity measurement. If left blank, will use measured temperature and entered...
Page 276: Post-Processing Flowtracker Measurements
SonTek – a Xylem brand 14.9. Post-Processing FlowTracker Measurements A powerful new feature in the FlowTracker2 now allows the user to edit most values associated with a measurement after the measurement is taken. This section provides instructions on the post-processing ability of the FlowTracker2 software.
Page 277: Original Flowtracker .Wad File Editing
SonTek – a Xylem brand • Save Edited Data to File – after hitting the Apply Settings and Recompute Discharge button, changes will appear in the values displayed in the software, but these changes will not be saved to a file unless the Save Edited Data to File is pressed.
Page 278: Editing Through The Settings Pane
SonTek – a Xylem brand Locked File for Editing of Original FlowTracker Figure 14:34. Original FlowTracker Editing 14.9.2 Editing through the Settings Pane The values in the Settings Pane are summarized in Table 14:5. All of these values can be edited. To edit, type in the appropriate changes in the input boxes and press the Apply Settings and Recompute Discharge button.
Page 279: Editing By Station
SonTek – a Xylem brand Recalculated Original Value Value Figure 14:35. Edited Values Updated 14.9.3 Editing by Station To edit values associated with individual stations within a measurement, first go to the Stations tab. The editable values associated with each station are indicated in Table 14:4.
Page 280 SonTek – a Xylem brand Edit a Station Figure 14:36. Edit by Station FlowTracker2 User’s Manual (January 2019)
Page 281 SonTek – a Xylem brand Figure 14:37. Station Editing Dialog A pop-up editing dialog will appear when the Edit button is pressed, shown in Figure 14:37. Within this dialog, the following items can be edited: • GPS Latitude – GPS latitude if known from external source •...
Page 282: Editing Supplemental Data
SonTek – a Xylem brand removed, all three measurements associated with this station will be removed (0.2, 0.6, and 0.8). Please consult the rules specific to each measurement type. • Revert to Original – Revert to original values associated with the station when the data file was downloaded from the FlowTracker unit.
Page 283 SonTek – a Xylem brand FlowTracker2 User’s Manual (January 2019)
Page 284: Export Files To Ascii
SonTek – a Xylem brand Figure 14:38. PDF Discharge Summary File 14.10.2 Export Files to ASCII To export .ft files to ASCII format readable by text editors and spreadsheet software (Microsoft Excel, Word, etc.), click the Export button, shown in Figure 14:39.
Page 285: Matlab Tools For Json Files
SonTek – a Xylem brand be created in the selected folder. The contents and format of the ASCII files is summarized in FlowTracker2 CSV Output. 14.10.3 Matlab Tools for JSON files Although the FlowTracker2 software does not have a specific Matlab export, a number of Matlab tools exist to parse and convert JSON format files to Matlab-readable format, and are readily available through various third-party websites.
Page 286: Flowtracker2 Lab-Adv
SonTek – a Xylem brand Section 15. FlowTracker2 Lab-ADV 15.1. Lab-ADV Software Feature The Lab-ADV feature is designed to work in conjunction with a Windows based Computer or Tablet and a FlowTracker2 ADV probe assembly. A Power and Communication Cable is required to connect the FlowTracker2 probe assembly to the PC or Tablet.
Page 287: Enable Lab-Adv Feature
SonTek – a Xylem brand Figure 15:1 – Lab-ADV Feature of FlowTracker2 Desktop Software 15.2. Enable Lab-ADV feature A license file is required to enable the Lab-ADV feature in a FlowTracker2 probe assembly, where the license is specific to the probe assembly and is based on its serial number.
Page 288: Lab-Adv Configuration
SonTek – a Xylem brand Figure 15:2 – Upload of License File for Lab-ADV 15.3. Lab-ADV Configuration The Lab-ADV Configuration settings specified in Table 15:1 allows the user to define the data collection process within Communication, System, Environmental and Data Management categories.
Page 289 SonTek – a Xylem brand Category Value Description Otherwise, generally it is best to select the lowest velocity range that will cover the maximum velocity expected in a given experiment. See Table 15-2 descriptions of each velocity range. Run Automated...
Page 290 SonTek – a Xylem brand Category Value Description Logging Duration Per Defines a file logging limit based on a time File (min) duration. The Logging Interval Start / End Time Alignment works in combination with “Logging Duration Per File (min)”.
Page 291: Load Configuration
SonTek – a Xylem brand The Lab-ADV Configuration window, shown in Figure 15:3, consists of two sections. The first requires the user to define the parameters specified in Table 15:1. The second section consists of number of functions that enhance the measurement process.
Page 292: Probe Info
SonTek – a Xylem brand Manual Beam Check a) Sampling Volume is defined by the Grey vertical line, b) Averaging of beam profile data, c) Beam Check file can be recorded during manual Beam Check Figure 15:4 – Manual Beam Check...
Page 293: Force Firmware Upgrade
SonTek – a Xylem brand Figure 15:6 – Probe Info 15.3.5 Force Firmware Upgrade Th Force Firmware Upgrade option allows the user to either recover a probe without firmware or downgrade the firmware. The warning supplied during the operation is shown in Figure 15:7.
Page 294: Display Settings
SonTek – a Xylem brand Figure 15:8 – Data Collection Window 15.4.1 Display Settings Display settings window, shown in Figure 15:9 allows the user to define which variables should be displayed during data collection and the number of columns used for the layout.
Page 295: Data Export
SonTek – a Xylem brand Information a) Sampling Rate b) Start Time c) Last Sample Time d) Samples Recorded Figure 15:10 – Information Box 15.5. Data Export The data collected during the measurement is automatically exported in a CSV format file after the measurement is completed.
Page 296 SonTek – a Xylem brand Variable Description Units Decimal Velocity.X Mounting correction applied to velocity. Corrected Corrected velocity, Y velocity component. m/s or ft/s Velocity.Y Mounting correction applied to velocity. Corrected Corrected velocity, Z velocity component. m/s or ft/s Velocity.Z Mounting correction applied to velocity.
Page 297: Power And Communication Cable
SonTek – a Xylem brand Variable Description Units Decimal Accelerometer.X Raw X acceleration Accelerometer.Y Raw Y acceleration Accelerometer.Z Raw Z acceleration 15.6. Power and Communication Cable The Power and Communication Cable connects the FlowTracker2 probe assembly to the power supply and Windows PC or Tablet. The hardware components associated with the FlowTracker2 Lab-AdV application are listed in Table 15:3.
Page 298 SonTek – a Xylem brand Component Description Power and Communication Power and Communication Cable Cable (1m, RS232) AC/DC Power Supply: 12VDC, Power Supply 20W, 1.67A RS232 Cable RS232 Cable Data transmission between FlowTracker2 probe assembly and PC / Tablet can be impacted if the RS232 cable length exceeds the maximum recommend length.
Page 299: Appendix A. Software Flow Diagram
SonTek – a Xylem brand Appendix A. Software Flow Diagram FlowTracker2 User’s Manual (January 2019)
Page 300 SonTek – a Xylem brand FlowTracker2 User’s Manual (January 2019)
Page 301: Appendix B. Site Selection Requirements
SonTek – a Xylem brand Appendix B. Site Selection Requirements The Site Selection Requirements for performing discharge measurements using a FlowTracker2 instrument are based on a number of measurement site and hydraulic requirements. The measurement site and hydraulic requirements are similar to what a Hydrologists or Hydrographer will use in the selection of monitoring site for either natural or artificial control.
Page 302: Appendix C. Japanese Method Example
SonTek – a Xylem brand Appendix C. Japanese Method Example The measurement example of the Japanese method given in Appendix C is based on an actual field measurement that was manually calculated to give an overview of the various steps involved. The section of the measurement site was greater than...
Page 303 SonTek – a Xylem brand Appendix D. Measurement Equipment List Description Cat. Items Quantity Probe FlowTracker2 probe with cable Handheld FlowTracker2 handheld Battery Cartridge Battery cartridge for FlowTracker2 Handheld Bracket Handheld bracket to mount handheld to Top Setting Rod Top Setting Rod...
Page 304 DECLARATION OF CONFORMITY Manufacturer’s Name: SonTek, a Xylem brand Manufacturer’s Address: 9940 Summers Ridge Road San Diego, CA 92121 U.S.A. SonTek, a Xylem brand, DECLARES THAT THE FOLLOWING PRODUCTS: Equipment Type: Flow Meter Model: FlowTracker 2 Product Names: FlowTracker 2, FlowTracker 2 Lab-ADV...
Page 305 SonTek – a Xylem brand RoHS 2 DIRECTIVE 2011/65/EU Per the current RoHS Directive, the FlowTracker 2 and FlowTracker 2 Lab are classified as Category 9 Industrial Control and Monitoring Instruments and comply with the RoHS 2 Directive. However, due to the presence of piezo electric transducers in our product, with respect to exemptions permitted in Annex IV, section 14 &...
Page 306 SonTek – a Xylem brand INDEX Complete Measurement · 145, Condensation · 184 conductivity · 43 Configuration Templates · 38 Edges · 68, 70, 72 Accessing Templates · 38 Confirmation · 119, 120, 156 accuracy · 223 Edit Station · 119 considerations ·...
Page 307 SonTek – a Xylem brand Measurement Technique · 66, 143, 147, 155, 159, 160, 165, 166, 168, 172, 282 Method None · 73 pulse-coherent · 220 Ice · 124 Metric · 32 Interpolated Variance Estimator · Mid-Section Equation · 67 Mid-Section Method ·...
Page 308 SonTek – a Xylem brand Signal Strength · 19 Signal to Noise Ratio · 81, 219 Signal-to-Noise Ratio (SNR) · Temperature · 20, 43 Velocity · 76 Temperature Raw Data · 60 Velocity Angle for Warning · 46 SNR · 81 Temperature sensor ·...

Xylem SonTek FlowTracker2 User Manual

Quick Overview

System Operation

Device Configuration

Utilities

Data Collection Modes

Quality Control

Measurement Process

Discharge Measurement

General Measurement

Flowtracker2 Hardware

Operational Considerations

Flowtracker2 File Format

Quick Links

Summary of Contents for Xylem SonTek FlowTracker2