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Manual – Starflow Ultrasonic Doppler Instrument

Model 6526

Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx

Page 60

3.

The table type can also be a pipe; in this situation the pipe dimensions should be entered.

4.

In the case of a User Defined Area Rating Table, select the text file to be used.

5.

Once this has been completed then Save the Scheme.

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Summary of Contents for 6526

Page 1: ...is 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 com...

Page 2: ...User Manual Issue 4 0 ines docx 30 01 15 IM CB CB Unidata Manual 6526J Starflow User Manual Issue 5 0 docx 04 01 16 IM PD CB Unidata Manual 6526 Starflow User Manual Issue 17 01 2020 docx 17 01 20 DM...

Page 3: ...esiccant 12 5 0 Starlog v4 starflow instrument only software installation 12 6 0 Starflow Scheme Management 20 6 1 Scheme Editor 20 7 0 Programming starflow 33 8 0 Test Mode 35 8 1 Scheme Information...

Page 4: ...ow User Manual Issue 17 01 2020 docx Contents 2 14 2 Memory Layout 69 14 3 Hardware Register Information 69 14 4 Starflow Instructions 70 15 0 Starflow SDI 12 Interface 71 15 1 Introduction 71 15 2 Us...

Page 5: ...g techniques are unsuitable or too expensive It is particularly useful at sites where no stable stage velocity relationship exists and where flows are affected by variable tail water conditions culver...

Page 6: ...ion and logs the measurements Water Velocity in the vicinity of the Starflow is measured acoustically by recording the Doppler shift from particles and microscopic air bubbles carried in the water Wat...

Page 7: ...ation is known as a Doppler shift To measure water velocity in open channels Starflow exploits the particles moving with the water as acoustic targets or scatterers from an instrument fixed to the bed...

Page 8: ...s dependent on pressure water temperature salinity and sediment content Of these temperature has the most significant effect and it is measured by the Starflow and applied in the correction of velocit...

Page 9: ...rs of approximately 8 5 20 and 11 5 40 2 3 2 Instantaneous Versus Averaged Velocity When you observe Starflow velocities they will be seen to vary by 10 or more from scan to scan at some sites Because...

Page 10: ...ll be seen and the relationship will depend on how this portion relates to the vertical and horizontal velocity distribution in the channel An instrument located in the centre of the stream would norm...

Page 11: ...r temperature Velocity Range 21mm s to 4500mm s bidirectional Resolution 1mm s Accuracy 2 of measured velocity Signal Path 30 above horizontal Depth Ranges Model 6526J 21 0 to 2m Model 6526J 51 0 to 5...

Page 12: ...d The transducer does not process velocities slower than this The maximum velocity is 5 metres second The transducer will measure velocities in both directions Reflectors are present in the water Gene...

Page 13: ...nt into a pipe Kit design is modular allowing it to fit into any size pipe The band is flexible enough to fit irregular shapes such as ovoid egg shaped sections All components are made from stainless...

Page 14: ...rt of the pipe and an Expanding Clamp at the top obvert of pipe see diagram 3 Drill 4 x 5mm holes 85mm spaced in the centre of the band to locate the Starflow instrument Use the Starflow mounting clam...

Page 15: ...Page 11 1 Position and tighten Starflow and band the bolt the Starflow mount to the band 2 Fold the band into a circle to easily fit inside the pipe and position into place inside the pipe 3 Slip the...

Page 16: ...round When in counter mode only voltage pulses of 7 5V will be recognised 4 5 Drying Tube and Desiccant The Starflow cable contains a tube to vent the water depth pressure sensor to atmospheric pressu...

Page 17: ...ssue 17 01 2020 docx Page 13 If you get a fresh copy off the web you can be sure you have the latest version of the software Once the download is complete locate and run the StarlogV4 exe file Ensure...

Page 18: ...Doppler Instrument Model 6526 Unidata Manual 6526 Starflow User Manual Issue 17 01 2020 docx Page 14 Close all other programs currently running on the computer and then press Next Click on I accept th...

Page 19: ...nidata Manual 6526 Starflow User Manual Issue 17 01 2020 docx Page 15 Do NOT change the path StarlogV4 needs to be at this location Do NOT install into Program Files folder If you do this StarlogV4 wi...

Page 20: ...Manual Starflow Ultrasonic Doppler Instrument Model 6526 Unidata Manual 6526 Starflow User Manual Issue 17 01 2020 docx Page 16 Press the Install button once you have selected your start icon options...

Page 21: ...mpleted When the software is run for the first time Starlog will ask you for the path of any Legacy Starlog Version 3 files If you have not got Starlog Version 3 on your PC then just press Next to pro...

Page 22: ...arlog 4 Starflow Instrument only Starlog 4 All Instruments and Loggers Full version additional User Name and code key required purchased separately Because this installation will be for the Starflow I...

Page 23: ...a Recorder Software for Starflow disk that came packaged with your Starflow instrument Press Next when done Once the Code Key has been successfully entered you will get a confirmation window as shown...

Page 24: ...all your version 4 schemes and all your version 3 schemes if you have any Select a scheme by double click its name 6 1 Scheme Editor To create a scheme you need to open the Scheme Editor Click on the...

Page 25: ...uble clicking it Three new icons will appear inside the left toolbar Settings Instruments and Log Buffer 6 1 1 Settings To control basic logger functionality click on the Settings icon One of the most...

Page 26: ...f you set the scan rate to 1 second the maximum logging interval is 65535 seconds or 18 hours 12 minutes 15 seconds If you want a log interval of 1 day you would need a scan rate of at least 2 seconds...

Page 27: ...Instruments window shows the instruments that have been added to your scheme you will now see for the Starflow Starflow Ultrasonic flow recorder Starflow Flow extension all models To add an instrumen...

Page 28: ...indow or right click on it and select Edit from the menu Different instruments have different configuration windows and options 6 1 2 1 Configuring the Starflow Starflows are configured just as if the...

Page 29: ...can be unselected 6 1 2 2 Configuring the Starflow as an SDI 12 Sensor When the Starflow is an SDI 12 sensor other SDI 12 recorders can access and log data sensed by it This can be useful if you have...

Page 30: ...1 2020 docx Page 26 Double click on a channel to add it to the list Each added channel becomes an SDI 12 value numbered from zero starting at the top The following shows Depth as parameter 0 and Veloc...

Page 31: ...to increased power consumption while the logger is communicating The Scan Synchronous Communications checkbox fine tunes when the logger checks for a computer attempting to communicate with it When t...

Page 32: ...lly says that the data being recorded is unreliable Min Samples to analyse The Starflow requires a certain number of samples to determine if the data being provided is accurate the default setting is...

Page 33: ...fer size is all the available memory 6 1 3 2 Instrument Channels Each Buffer has its own set of the Instrument Channel checkboxes You control which of the available channels gets logged into each buff...

Page 34: ...of Instrument Channel checkboxes not the AVG column or any other column Rather than take samples at each scan like the AVG column the avg column only takes samples during the Sub Interval The Sub Inte...

Page 35: ...the size of the Main Buffer by a corresponding amount and vice versa Note that the total capacity of all the buffers will always be less than the quoted memory capacity of your data logger The data lo...

Page 36: ...an un tick the checkbox and click on the Set Order button to manually set the logging order of the channels Click on the channel to select it and then click on the up down buttons on the left to nudge...

Page 37: ...et the same dialog at any time by selecting Save Scheme As from the File menu Enter the scheme name in the File Name field There is a maximum length of eight characters The New Group button allows you...

Page 38: ...her programs running on your computer then try again Timeout on Input Logger will have powered down Extended error x Error configuring Starflow Write down the number check connections then try again I...

Page 39: ...k the status of the logger and to monitor its logging progress To enter Test Mode click on its icon shown to the right A window similar to the following will appear The Scheme Name shows the name of t...

Page 40: ...e The date time of the logger Logger State One of Primed Logging or Stopped Primed The logger hasn t yet started logging Loggers with no built in instruments excluding internal battery and temperature...

Page 41: ...most recent log was recorded Memory Time This is the estimated time remaining until the Main Buffer fills up and either stops Linear or starts overwriting the oldest data Circular The Main Buffer free...

Page 42: ...logged item forms a different series The time of log is the X axis the Y axis is the value of the logged items To change to the Table view right click anywhere outside the plot area either of the axe...

Page 43: ...action of copying the data stored in the data logger into a CSV comma separated value file on your computer CSV files can be directly opened in Excel and are also a common format supported by other so...

Page 44: ...s starting at the most recent Incremental Unload This unloads all data logged since the last time you unloaded the logger If you ve never unloaded the logger since you programmed it this will be a Ful...

Page 45: ...data files generated by version 4 software from version 3 schemes StarlogV3 Ann Version 3 data files generated by version 3 software Archive CSV Arbitrary CSV files NOTE Version 4 cannot directly vie...

Page 46: ...ck on it to open it using the Starlog V4 built in Data Viewer Right click on it to open a context menu The Open with options are described below The Send To Copy Delete and Open containing folder are...

Page 47: ...m left next to the scrollbar 10 2 1 2 Text View The Text View shows your logged data in a tabular form The column widths are adjustable by dragging the divider between them Use the scroll bar to selec...

Page 48: ...ame_Chart that displays the data as a graph 11 0 DIAGNOSTICS Diagnostics are accessed from the main Starlog V4 window by selecting the Diagnostics tab on the left toolbar Please see the screenshot to...

Page 49: ...ware will automatically cycle through all the baud rates until a star prompt is detected DTR Controls the Data Terminal Ready signal Modems require this signal to be on ticked to enable dialling out t...

Page 50: ...the connected data logger to the firmware selected in the Available Versions field The window will indicate the progress of the upgrade 11 3 SDI 12 Test The SDI 12 Test function allows you to check th...

Page 51: ...e Doppler shifts detected measured in mm sec This is the value presently logged Quartile A ratio of the width of the peak to the height This can provide an indication of the quality of the histogram 2...

Page 52: ...s received As the velocity changes the peak will be seen to move back and forth along the x axis Note The Velocity Trace does not indicate Flow Direction only Velocity magnitude The width of the peak...

Page 53: ...Angle as Particles Pass through the Main Beam The acoustic beam has a width or spread of about 10 The centreline of the beam is aligned at 30 above horizontal but as a particle passes horizontally th...

Page 54: ...cycle to cycle then it represents the Starflow view of the channel and not some transient aberration Hydrographers have to decide if this represents a valid velocity measurement or if the site is uns...

Page 55: ...oss section introduce different velocity regimes within the view of the Starflow the histogram is distorted At low flows in clean streams the beam can be reflected for some distance and see unexpected...

Page 56: ...can all produce Doppler shifts that are not directly related to the water velocity The field of view of the Starflow can extend for at least 1m along the beam in clean water and reduces as the sedime...

Page 57: ...suring Turbulent Velocities In higher bedslope streams a wide and multiple peaks may be displayed because of the complex moving landscape presented to the Starflow The fact that many repeats of simila...

Page 58: ...he ripples will be positioned so that the carrier reflects away from the Starflow A minor signal is detected but many more signals are detected from the water and a correct velocity is measured When t...

Page 59: ...t will normally acquire enough signals for a sensible result There will be an increase in the signal noise Because of the difficult environment there will be an increase in very high velocity signals...

Page 60: ...se Velocity too slow only noise remaining 12 2 9 Measuring Velocities in Very Shallow Water Poor quality velocity data will result if the water becomes so shallow that the top of the eyes of the trans...

Page 61: ...on the signals logged Provided the material is flexible and saturated the ultrasonic signals can be transmitted and received through it Burying the Transducer in Sand Part buried sensors continue to...

Page 62: ...es by changing the velocity distribution in the field of view of the sensor The flow distribution in the channel may no longer be laminar and the relationship between the logged and mean channel veloc...

Page 63: ...asurement cycle Default 60 secs Units second Log Interval Frequency of Starflow recordings Default 15 minute Units scans Flow Rate FR Instantaneous Flow Rate calculated by Starflow as the product of V...

Page 64: ...Starflow User Manual Issue 17 01 2020 docx Page 60 3 The table type can also be a pipe in this situation the pipe dimensions should be entered 4 In the case of a User Defined Area Rating Table select...

Page 65: ...es like an ovoid pipe Create a text file listing measurements Nominate this file in the scheme s User Rating file Partially Filled Pipe There are four parameters needed to define a pipe installation R...

Page 66: ...asonic Doppler Instrument Model 6526 Unidata Manual 6526 Starflow User Manual Issue 17 01 2020 docx Page 62 Pipe Example 1 The pipe is 1 8m in diameter A Starflow unit is mounted at the bottom No silt...

Page 67: ...020 docx Page 63 Pipe Example 2 The pipe is 900mm in diameter A Starflow unit is mounted 100mm up from the bottom and there is 75mm of silt in the pipe Note that the Table Range was set to 1 to give i...

Page 68: ...nnel This defines the maximum depth of the channel There are two ranges 2m and 5m Define the smallest maximum depth for the channel that is compatible with your Starflow as this will give best results...

Page 69: ...docx Page 65 Open Channel Example 1 This Open Channel is a V Notch shape which is 2m wide and 1 5m deep A 2 metre depth range Starflow unit is mounted in the lowest point of the notch The Cross Sectio...

Page 70: ...le 2 This Open Channel is a pre formed two stage Rectangular Channel which is 3 metres wide and 1m deep with a 1m x 300mm secondary channel in the centre The Cross Sectional Area File OCEX2 XAC is sho...

Page 71: ...1 2020 docx Page 67 Open Channel Natural Stream Example 3 This Natural Stream is 3 metres wide with the shape illustrated below The Cross Sectional Area File is shown below 0 0 500 1000 1000 1000 1200...

Page 72: ...e shows the depth for which each entry in the file represents an area Table Range 1m 2m 5m 10m Entry 1 0 mm 0 mm 0 mm 0 mm Entry 2 1 mm 2 mm 5 mm 10 mm Entry 3 2 mm 4 mm 10 mm 20 mm Entry 1000 999 mm...

Page 73: ...host computer This prompt is an ASCII asterisk followed by a carriage return c r The Starflow then waits 1 second for a request from the host computer If no request is received the Starflow powers dow...

Page 74: ...erature in 0 1 C 204 2 Battery Voltage in 0 1V 206 2 Water Velocity in mm sec 208 8 Reserved 216 2 Doppler Shift Hz A8 Frequency 218 2 Distribution Quartile A9 Quartile 22 2 Number of Samples A10 Samp...

Page 75: ...r averaging OUTPUT Control output sequences BLOCK CLEAR Storage initialization ADDITION 2 4 byte operands 4 byte result SUBTRACTION 2 4 byte operands 4 byte result MULTIPLICATION 2 4 byte operands 4 b...

Page 76: ...t its address is in fact being called or if the address of some other device at another location is being sought If the Data Recorder is looking for a different address the Starflow will go back to sl...

Page 77: ...ments from the nominated SDI 12 sensor and SDICONV which converts the collected data for use by the Log Program Measurements may be converted into fixed point Short Integers for manipulation by the Sc...

Page 78: ...ow SDI 12 Command Implementation The following table shows which SDI 12 commands are and are not recognised Command Description Sensor Data Recorder a Acknowledge X aI Send identification X aV Start v...

Page 79: ...arflow it would appear with 6526 To send commands to a sensor select it from the list then select the command to send from the drop down list the Measure aM in the above screenshot When you select a c...

Page 80: ...Instrument Model 6526 Unidata Manual 6526 Starflow User Manual Issue 17 01 2020 docx Page 76 Note that different sensors will return not just different values but different numbers of values Most sens...

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