UniData Communication Systems 6526 Manual

Starflow ultrasonic doppler

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Streamline Measurement Ltd
Manual
Starflow Ultrasonic Doppler
Instrument
Model 6526
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules in the U.S.A. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area
is likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.
This equipment has been tested for compliance with European regulations as follows:
Application of Council Directive:
2004/108/EC
Standards to which Conformity is declared:
EN-61000-6-1:2001
EN-61000-4-2:1995
EN-61000-4-3:1995
EN-61000-4-4:1995
EN-61000-4-6:1996
ENV-50204:1995
Any changes or modifications to this equipment not expressly approved by the manufacturer
Unidata Pty Ltd could void the user's authority to operate this equipment.
Streamline Measurement Ltd
Streamline Measurement Ltd, 01457-864334, sales@streamlinemeasurement.co.uk, www.streamlinemeasurement.co.uk

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Summary of Contents for UniData Communication Systems 6526

  • Page 1 Starflow Ultrasonic Doppler Instrument Model 6526 This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules in the U.S.A. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 2 Unidata Manual - 6526 Starflow User Manual Issue 3.0 2008 AB/CB Unidata Manual - 6526 Starflow User Manual Issue 3.1.doc 2008 Unidata Manual - 6526 Starflow User Manual Issue 4.0.docx - Reformat 12 09 13 Unidata Manual - 6526 Starflow User Manual Issue 4.0-ines.docx 30 01 15 IM,CB Unidata Manual - 6526J Starflow User Manual Issue 5.0.docx...
  • Page 3: Table Of Contents

    Channel Characteristics Affecting the Signal ..............50 13.0 Flow Measurement Extensions ..................59 13.1 Overview of Creating a Flow Scheme ................59 14.0 Computer Communication ....................69 14.1 Communications (Starlog) Protocol ................... 69 Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Contents 1...
  • Page 4 Starflow SDI-12 Interface ....................71 15.1 Introduction ........................71 15.2 Using Starflow as An SDI-12 Sensor ................72 15.3 Starflow SDI-12 Implementation Notes ................73 15.4 SDI-12 Test ........................74 Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Contents 2...
  • Page 5: Introduction

    Model 6603D-SDI Adaptor cable for connecting a Starflow to a computer RS232 & battery • Model 6526M-2 Stainless Steel Mounting Bracket • Model 6307C-AUE STARLOG V4 (instrument only) Starflow Licence Key Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 1...
  • Page 6: Operating Principles

    PC based computation of area x mean from each logged point. Total flows are then accumulated as rate x time. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 2...
  • Page 7: How Starflow Measures Velocity

    The velocity measured is the component along the beam. As the beam is at an angle to the flow, the Velocity is adjusted by the angle cosine. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 3...
  • Page 8: Speed Of Sound In Water

    Bubbles in the water are desirable as scatterers, but too many can affect the speed of sound. In air the speed of sound is about 350 m/s. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 4...
  • Page 9: Factors Affecting Data Accuracy

    When measuring velocity data Starflow samples for several seconds during each 1 minute scan. It is recommended that all velocity measurements are averaged over the log interval. This attenuates short frequency variations. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 5...
  • Page 10: Specifications

    Velocity & Depth (2) 300 days 250 days Velocity, Depth & Temperature (3) 200 days 160 days Velocity, Depth, Temperature & Battery (4) 150 days 125 days *Factory setting. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 6...
  • Page 11 Average Power: 0.3W (1 min scan rate) Factory Settings Scan Rate: 1 minute Log Interval: 15 minutes Max. Sampling Dur: 2 seconds Maximum Samples: Quartile: 100% Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 7...
  • Page 12: Installation

    The mounting should ensure the unit sits right on the bottom to avoid debris catching beneath it. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 8...
  • Page 13 To determine what components are needed for a Starflow pipe installation, you need to know the pipe diameter. Pipe Diameter Clamp Bands Joiners Up to 600mm 6705A 6705D 600 - 1200mm 6705B 2 x 6705D 1200 - 1800mm 6705B 3 x 6705D Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 9...
  • Page 14 (If pop rivets and the pop rivet gun are available they can be used as the replacement for the screws and nuts sets) Note: the band length must be measured to include the Expanding Clamp (fully closed), bands and joiners all together as shown. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 10...
  • Page 15 Fold the band into a circle to easily fit inside the pipe and position into place inside the pipe Slip the loose end of the band into the expanding clamp Adjust clamp until band is tight inside pipe (use spanner if necessary) Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 11...
  • Page 16: Power Considerations

    Key. The Software Key can be found on the program disk that was supplied with the Starflow instrument. A fresh copy of StarlogV4 can be obtained from the Unidata Website at the following address. https://www.unidata.com.au/products/datalogger-systems/datalogger-starlog-v4-software/ Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 12...
  • Page 17 Once the download is complete, locate and run the StarlogV4.exe file. Ensure you have administrator rights before running this file. Press “Run” when you see the dialog box above. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 13...
  • Page 18 Manual – Starflow Ultrasonic Doppler Instrument Model 6526 Close all other programs currently running on the computer and then press “Next” Click on “I accept the agreement” and press “Next” Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 14...
  • Page 19 StarlogV4 needs to be at this location. Do install into “Program Files” folder. If you do this StarlogV4 will not run correctly! Select program shortcuts as required. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 15...
  • Page 20 Manual – Starflow Ultrasonic Doppler Instrument Model 6526 Press the “Install” button once you have selected your start icon options. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 16...
  • Page 21 If you do have Starlog Version 3 files on your PC then you can set up the paths in the above window. Once this has been done, press the “Next” button Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 17...
  • Page 22 Because this installation will be for the “Starflow Instrument Only” (Supplied free with the purchase of a Starflow Instrument) then you will need to select “Starlog 4 / Starflow Instrument Only” option as indicated with the red highlight above. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 18...
  • Page 23 Software Serial No. This completes the installation of the Starlog 4 Starflow instrument only software onto your PC. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 19...
  • Page 24: Starflow Scheme Management

    When the Scheme Editor is open, select New Scheme from the File menu, or click the New icon on either of the toolbars. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 20...
  • Page 25 Manual – Starflow Ultrasonic Doppler Instrument Model 6526 A list of data loggers will appear. Select the 6526 – Starflow ultrasonic Doppler flow recorder by double-clicking it. Three new icons will appear inside the left toolbar: Settings, Instruments, and Log Buffer.
  • Page 26 The Instruments window lets you define what instruments are connected to the logger. Instruments define the relationship between what the logger measures (voltages, pulses/counts, digital data) and what the instrument measures (temperature, depth, wind speed, etc). Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 22...
  • Page 27 For example, to add the Starflow LCD Module instrument to your scheme: Select 6526LCD LCD Display Click the Add button to add the instrument to the scheme. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 23...
  • Page 28 The various tabs show the options available. If you want internal logger channels to be available for logging (e.g. Depth Velocity, Temperature, Battery, Quartile, Samples), you will need to make sure their entries on the Internal Channels tab are ticked: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 24...
  • Page 29 Starflow instrument and select the SDI-12 tab. Tick SDI-12 Sensor to enable the controls. Select ADD and for each channel you want to make available as an SDI-12 reading: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 25...
  • Page 30 The following shows “Depth” as parameter 0, and “Velocity” as parameter 1 The Starflow MUST then be programmed with this new scheme to operate as an SDI-12 sensor. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 26...
  • Page 31 For quick scan rates, this setting does not do much, however, for slower scan rates, clearing this checkbox (to select asynchronous communication) may improve the logger’s responsiveness to communications. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 27...
  • Page 32 < 20 ) then the software will either record a zero or the last value obtained, in general flow conditions and for data quality a zero is usually advised. The other factors are factory defaults and should not be changed. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 28...
  • Page 33 The average (arithmetic mean) of the values sampled at each scan over the log interval The average (arithmetic mean) of the values sampled at each scan over the sub interval Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 29...
  • Page 34 As you tick channels to log, or adjust the Log Interval, the software will automatically update the Memory Time to show you an estimate for how long the memory will last. The estimate does not take into account logging forced by events. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 30...
  • Page 35 Linear / Circular: When linear buffers fill up, they stop accepting new logged data. When Circular buffers full up, they wrap around to the beginning and start overwriting the oldest data. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 31...
  • Page 36 Events allow the logger to act on changes on its inputs. Various actions include triggered logging, SMS alerts and relay control. A maximum of 32 events are supported. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 32...
  • Page 37: Programming Starflow

    Loggers are programmed from the main screen, by clicking on the Program icon, shown to the right. You will be asked to confirm before the programming will proceed: Clicking OK will open a new window that shows the progress of the programming: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 33...
  • Page 38 The remote Modem is off the hook. Wait, then try again. Busy Modem Reports – No The Modem is not connected to the phone socket. Dial Tone Connect, then try again. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 34...
  • Page 39: Test Mode

    The Scheme Name shows the name of the scheme that has been programmed into the logger. If the scheme in the logger isn’t the same as the currently selected scheme, the following message will be displayed: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 35...
  • Page 40: Scheme Information

    Note: In this Test mode you can also increase the font to a larger size by pressing the (+) sign on your keypad; this is especially useful for field situations. Log Information Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 36...
  • Page 41: Scheme Channels

    Event Buffers are each given their own tab. Click on the tab to select the buffer to view. Each buffer viewer operates in one of two modes: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 37...
  • Page 42 After a short delay a popup tooltip will appear showing the date/time and value of the data at that position. The following shows that at 08/02/2007 15:47:00 a value of 7.29 was logged: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 38...
  • Page 43: Unloading Data From Loggers

    *.Unn files. To unload logged data from your data logger to your PC, click on the Unload icon (shown to the right). The following window will appear: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 39...
  • Page 44 You can view a CSV file by double-clicking on it in the list. See Viewing Data on page 41 for a complete description of viewing logged data. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 40...
  • Page 45: Viewing Data

    The following screenshot shows that there is a scheme called Starflow, which has available data from its Main Buffer, and the only data file available is a file called Demo_01.CSV. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 41...
  • Page 46: Viewing The Data File

    Reset the zoom by right-clicking on the graph. The zoom level is also reset when you make a change to the visibility of any channel. The example below has the Battery channel turned off, leaving the Internal Temp: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 42...
  • Page 47 Opening your data file in Notepad can be useful if you suspect some file corruption. Notepad doesn’t try to interpret the data, so you can scan through it and manually correct any anomalies. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 43...
  • Page 48: Diagnostics

    PC and your data logger. You can watch the progress of logger programming or unloading, or you can watch the commands issued during the test display. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 44...
  • Page 49: Upgrade Firmware

    Unidata data loggers. Click the Query Logger button to have the software determine what type of logger is currently connected, and what version of firmware it is currently running. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 45...
  • Page 50: Sdi-12 Test

    “shape” of the signal and review a “mean” velocity calculated in several ways. Using this you may carry out tests and experiments in various flow environments. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 46...
  • Page 51: Velocity Histograms

    The screen will cycle, refreshing the plot and summaries each time a new set of samples are acquired. The x axis is scaled to 6000 mm/s. The following examples are shown as you would see them on your screen. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 47...
  • Page 52 In fast turbulent water the peak can be 500 mm/sec or more wide because of the range of velocities present in eddies and swirls. The following histogram is typical. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 48...
  • Page 53: Inherent Factors In Doppler Histograms

    The returned signals are sometimes echoes of echoes, vague and ambiguous and can be misinterpreted by the measuring circuits resulting in an incorrect Doppler shift. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 49...
  • Page 54: Channel Characteristics Affecting The Signal

    If it happens consistently it is a site characteristic. The relevance of this to the mean channel velocity will need to be understood and compensated for in processing. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 50...
  • Page 55 Higher velocities could also be seen at localised parts of the channel where water is accelerating around obstacles, or still carrying the effects of upstream higher velocities. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 51...
  • Page 56 This results in a distorted peak, or a double or multiple peak in some situations, the composite of all velocities seen along the path. Such sites may not be suitable for the Starflow as the flow is not laminar. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 52...
  • Page 57 Starflow. The fact that many repeats of similar velocity histograms are seen indicates that the different velocity components seen are valid. How to interpret such signals is the issue. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 53...
  • Page 58 At some sites ripples will be a characteristic at certain levels. Positioning and orienting the Starflow so that it does not point directly into a “mirror” ripple face is the best prevention. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 54...
  • Page 59 Developments are continuing to improve the integrity of low velocity measurements. Software enhancements can be loaded into existing units. Hardware changes will be incorporated into future units. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 55...
  • Page 60 Starflow can be fitted into a narrow channel or recessed into the bed such that all the Starflow is underwater whenever flow occurs. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 56...
  • Page 61 The following histogram is typically seen. Note that the Quartile is reporting 214%, indicating that the spread of Doppler shifts is very wide and there is little consistency in shifts detected. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 57...
  • Page 62 There will be a dominance of zero signals however those below 20 mm/sec. are discarded. The histogram will be distorted and have a characteristic vertical face at 20 mm/sec. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 58...
  • Page 63: Flow Measurement Extensions

    Starflow range should be selected, this will be written on the front of the Starflow. If your water depth will always be below 1m it is advisable to choose the 1m range. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 59...
  • Page 64 The table type can also be a pipe; in this situation the pipe dimensions should be entered. In the case of a User Defined Area Rating Table, select the text file to be used. Once this has been completed then Save the Scheme. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 60...
  • Page 65 This is usually zero; however, in some installations the Starflow may be located away from the bottom (to avoid silt and rubbish). Pipe Diameter (m) Defines the pipe diameter. Dead Sector (m) The deadband due to siltation (if any). Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 61...
  • Page 66 Manual – Starflow Ultrasonic Doppler Instrument Model 6526 Pipe Example 1 The pipe is 1.8m in diameter. A Starflow unit is mounted at the bottom. No silt (dead sector) in pipe. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 62...
  • Page 67 Note that the Table Range was set to 1 to give improved accuracy. Even though using a 2m depth Starflow, maximum depth in this application is 800mm (less than 1m). Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 63...
  • Page 68 Adjacent points are connected by straight lines. There may be as many Distance/RL pairs as you need. The reference point (0,0) may be any datum standard which must be above the highest water level. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 64...
  • Page 69 Starflow unit is mounted in the lowest point of the notch. The Cross-Sectional Area File is shown below: 1000 1500 2000 0 The Area Rating Table window for this application looks like this: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 65...
  • Page 70 The Cross-Sectional Area File (OCEX2.XAC) is shown below: 0 1000 1000 1000 1000 1300 2000 1300 2000 1000 3000 1000 3000 0 The Area Rating Table window for this application has these settings: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 66...
  • Page 71 The Cross-Sectional Area File is shown below: 500 1000 1000 1000 1200 1300 2200 1300 2200 1800 2500 1800 3500 0 The Area Rating Table window for this application looks like this: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 67...
  • Page 72 These channels may be used to trigger events. For example, you may wish to trip (switch on) a water sampler after every megalitre has flowed through the channel. Using the 6526-cm Flow Extension (which measures in litres), the Event definition in this example would look like this: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx...
  • Page 73: Computer Communication

    0 to 255. For multiple byte registers the convention used is – least significant byte to most significant byte (LSB,MSB). The Starflow, operating the standard instruction set, has the following fixed memory assignments in the Hardware Register: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 69...
  • Page 74: Starflow - Instructions

    The logger program is executed every logger scan (from 15 sec. to 5 min.). The first instruction in the logger program is at Address 384. The Data Logger executes this program until an EXIT instruction is encountered (opcode = 0). Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 70...
  • Page 75: Starflow Sdi-12 Interface

    Micrologger to be an SDI-12 Data Recorder. This appendix assumes that the reader is familiar with the operation of the SDI-12 Sensor (Sensor) and the SDI-12 Data Recorder (the Recorder). Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 71...
  • Page 76: Using Starflow As An Sdi-12 Sensor

    2100mm/s positive flow -350 means 350mm/s reverse flow The implied parameter scaling is the same as defined for Starflow channels: Velocity mm/s Depth Temperature .01°C Voltage .01V Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 72...
  • Page 77: Starflow Sdi-12 Implementation Notes

    SDI-12 Measurements (SDIGETs) two scans prior to the desired Log Interval. The sequencing of the SDI-12 measurements is under the control of the Scheme Program (which is defined during Scheme Editing. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 73...
  • Page 78: Sdi-12 Test

    When the window is first opened, click Connect to connect to the data logger and start SDI-12 diagnostics: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 74...
  • Page 79 If there is a response, it will appear in the communication log area, and the software will also provide an interpretation of the response. The above shows the response to a Measure command, the following is the response to a subsequent Read: Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 75...
  • Page 80 Manual – Starflow Ultrasonic Doppler Instrument Model 6526 Note that different sensors will return not just different values, but different numbers of values. Most sensors will only return a single value. Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx Page 76...

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