UniData Communication Systems Starflow QSD Manual
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UniData Communication Systems Starflow QSD Manual

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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 their 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.
Revision History
File name / Revision
Unidata Manual - 6537A Starflow QSD SDI-12 User Manual 27 05 2019.docx
Unidata Manual - 6537A Starflow QSD User Manual 21 06 2019
Unidata Manual - 6537A Starflow QSD User Manual 04 07 2019.doc
Unidata Manual - 6537A Starflow QSD User Manual 12 07 2019.doc
Unidata Manual - 6537A Starflow QSD User Manual 17 07 2019
Unidata Manual - 6537A Starflow QSD User Manual 28 10 2019.doc
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 27 11 2019.doc
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx
Streamline Measurement Ltd
Streamline Measurement Ltd, 01457-864334, sales@streamlinemeasurement.co.uk, www.streamlinemeasurement.co.uk
Starflow QSD Model 6527B and 6537A
Streamline Measurement Ltd
Manual
Authors & Change
Date
Details
27 05 2019
IM First Draft
21 06 2019
RDS, PD
04 07 2019
CB
12 07 2019
KC
17 07 2019
KC MS
28 10 2019
CB
27 11 2019
IM
17 01 20
IM Update EC Specs
Checked/
Approved
MS
MS
KC
MS
MS
PD
CB
DM

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Summary of Contents for UniData Communication Systems Starflow QSD

  • Page 1 28 10 2019 Unidata Manual - 6537A Starflow QSD User Manual 28 10 2019.doc 27 11 2019 Unidata Manual - 6527B and 6537A Starflow QSD User Manual 27 11 2019.doc 17 01 20 IM Update EC Specs Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Streamline Measurement Ltd Streamline Measurement Ltd, 01457-864334, sales@streamlinemeasurement.co.uk, www.streamlinemeasurement.co.uk...

  • Page 2: Table Of Contents

    Alignment with Flow and Depth ..................31 Instantaneous Versus “Averaged” Velocity ..............31 Conversion of Logged to Mean Velocity ................. 31 The Speed of Sound in Water ..................32 Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Contents 1...

  • Page 3: Introduction

    The conductivity measurement can also be used where existing techniques for measuring water quality are unsuitable or too expensive. By using Digital Signal Processing (DSP) techniques, the Starflow QSD is able to perform in a wide range of environments. It is used to measure flows and water conductivity (6537A) in pipes, channels and small streams.
  • Page 4 Instrument Accessories: Model 6515A QSD Barometric Reference for pressure depth reading compensation Software Accessories: Sonic Software A software utility enabling advanced access to configuration parameters Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 2...

  • Page 5: Specifications

    Maximum cable 60m defined by SDI12.org RS-485 Modbus RTU Connection Single cable up to 300 metres long (standard fitment is 15m) Baud rate and parity Configurable Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 3...
  • Page 6 Mounted in an enclosure near to the data logger in a position protected from the elements. b) The enclosure should be vented to allow the barometer sensor to be exposed to atmospheric pressure variations. Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 4...

  • Page 7: Operating Principles & Measured Parameters

    • Tilt ( the angular orientation of the instrument) The Starflow QSD performs data processing and analysis each time a measurement is made. This can include rolling averaging and outlier/filter functions for Depth (ultrasonic), Velocity, Depth (Pressure) and Conductivity (6537A). The function parameters can be configured via SDI-12 eXtended command or Sonic software.

  • Page 8: Water Depth Measurement - Ultrasonic

    The Starflow QSD is fitted with a 2 bars absolute pressure sensor. The sensor is located on the bottom face of the instrument and utilises a temperature compensated digital pressure sensing element.

  • Page 9: Accelerometer

    Manual – Starflow QSD Model 6527B and 6537A Accelerometer The Starflow QSD has an integral accelerometer sensor to measure the inclination of the instrument. The sensor returns the roll and pitch angle of the sensor (in degrees). This information can be useful in ensuring the installation position of the sensor is correct and for determining if the instrument has moved (bumped or washed away) during post installation inspection.

  • Page 10: Taking Measurements From The Instrument

    Manual – Starflow QSD Model 6527B and 6537A 4.0 TAKING MEASUREMENTS FROM THE INSTRUMENT The Starflow QSD instrument has both SDI-12 and RS485 (Modbus RTU) Interfaces. The following sections describe them in detail. If you are a user of Unidata NRL loggers you can simply add the Starflow QSD as an instrument within the logging scheme as a SDI-12 instrument 4.1 SDI-12 Operation...
  • Page 11 RSSI (signal level) no units Signal Spread no units Conductivity (TC) µS/cm Pressure Depth +/- mm Barometric Reference + mm unassigned unassigned unassigned unassigned unassigned unassigned unassigned Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 9...
  • Page 12 Manual – Starflow QSD Model 6527B and 6537A 4.1.3 Extended Commands To enable various settings and adjustments to be made to the Starflow QSD using SDI-12 eXtended command aX!. The extended command format is: Command Response Examine setting aXn! a<values><CR><LF>...
  • Page 13 **** Except for aX5, the order of changed parameters IS important. You MUST re-enter all parameters occurring prior to the parameter you wish to change. Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 11...

  • Page 14: Modbus Rs485 Operation

    Manual – Starflow QSD Model 6527B and 6537A 4.2 Modbus RS485 Operation The Starflow QSD can be operated as a Modbus RTU Slave sensor. The Baud rate and parity selected must be configured prior to using the instrument. The instrument supports configurable Baud rates for the RS-485 Communication Port (the SDI-12 Port is fixed to 1200/9600 as per the SDI-12 standard).
  • Page 15 Byte Count 1 byte 0 to 0xFFFF Register Count 2 bytes 0 to 0xFFFF Data Payload N bytes 0 to 0xFFFF 2 bytes 2 bytes Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 13...
  • Page 16 Unused LOGGER Start on Power-up (if Scheme loaded) 0202 Read only ushort Unused LOGGER ON/OFF 0203 Read only ushort Unused 0204 Read only ushort Unused 0205 Read/Write ushort P.Depth ON/OFF Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 14...
  • Page 17 In SDI-12 Mode, Auto Refresh = 0 secs (Modbus register 0101 OR Set via PC Utility SONIC)Velocity Trace To implement current TTL serial function over RS485 using same command and same data format. Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 15...

  • Page 18: Installation

    ±10 °) the readings could be compromised parallel to the surface? In general the Starflow QSD is not suited to Corrugated Pipes installation in corrugated pipes. Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 16...

  • Page 19: Instrument Mounting

    A typical installation is in a pipe or culvert with diameters between 150mm and 2000 mm. The Starflow QSD should be located near the downstream end of a straight and clean culvert, where non- turbulent flow conditions are maximised. The mounting should ensure the unit sits right on the bottom to avoid debris catching beneath it.
  • Page 20 LESS 25mm for fitting clearance. Circumference (length) = Diameter x 3.14 2. Arrange the clamp, band(s) and joiner(s) so that Starflow QSD unit will be positioned at the bottom (invert) of the pipe and an Expanding Clamp at the top (obvert) of pipe (see diagram).

  • Page 21: Configuration - Using The Sonic Configuration Software

    Always make note of the original settings before making adjustments so that a recovery path is maintained. 6.1 Setup – Connection to Starflow QSD Wire up the Starflow QSD to the terminal block at the end of the cable ensuring cable colours are followed correctly. Use the table below for these connections.
  • Page 22 QSD Instrument is getting ready to send the first lot of data to the software. The time should start incrementing every five seconds and the data will change accordingly. NOTE. Depending on the model of Starflow QSD will depend on what parameters you will see in this dispay.

  • Page 23: Settings Starflow Qsd

    Click on the “Settings” on the top of the screen which will bring up the configuration page for the Starflow QSD instrument. This is the page where most of the settings can be directly edited. The first area marked in is the settings associated with the MODBUS / RS-485 settings.
  • Page 24 QSD will return 0mm for any depth below its minimum operating depth. This minimum operating depth is currently 45mm so any depth below this with the check box ticked will give a depth reading of 0mm. Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 22...
  • Page 25 Manual – Starflow QSD Model 6527B and 6537A All 6527B and 6537A Starflow QSD’s are supplied with pressure sensors and the diagram above highlights the setting associated with this. NOTE: The 6527B and 6537A Starflow QSDs employ an absolute pressure sensor. Because of the way the absolute presure sensor operates there is a need for a barometric sensor to compensate for changes in barometric pressure.
  • Page 26 This value is set in the Max Signal Spread box. Min Depth (mm) - This will return a zero velocity reading if the depth falls below a certain value. Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 24...

  • Page 27: Configuration - Configuring Sonic

    Most of these settings are to do with specific communications parameters and are unlikely to be changed by the average user. Default values will work in the majority of cases. Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 25...
  • Page 28 SONIC Baud Rate - Sets the communications baud rate. Default is 9600 SONIC Parity - Selectable but “NONE” is the default setting. SONIC Stop Bits - Selectable but “1” is the default setting. Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 26...

  • Page 29: Tools - Starflow Qsd

    The Doppler Spectrum is a very useful tool for observing the performance of the QSD when deployed in the field. To use this option the Starflow QSD must be powered from a good 12 Volts source and the QSD must be in the location where it is to be operated. The Doppler Spectrum is able to give a visual indication of what the Instrument can “See”.
  • Page 30 –ve value and yet the instrument was placed in a forward flowing water course. In this case the Starflow QSD instrument had an obstruction placed in front of the instrument causing turbulence around the ultrasonic eyes.
  • Page 31 Once the firmware update selection is made, a file window will open and the firmware selection file can take place. New firmware files may be sent to Starflow QSD users by the Unidata Support Team or alternatively, made available through the Unidata web site at https://www.unidata.com.au/...

  • Page 32: Instrument Maintenance

    Manual – Starflow QSD Model 6527B and 6537A 7.0 INSTRUMENT MAINTENANCE The Starflow QSD requires very little maintenance. During routine site visits the following checks can be performed: Piezo element faces Clean the instrument surfaces where the Piezo elements are located by wiping with a cloth.

  • Page 33: Apendix A - Factors Affecting Flow Measurement Accuracy

    Manual – Starflow QSD Model 6527B and 6537A APENDIX A - FACTORS AFFECTING FLOW MEASUREMENT ACCURACY Starflow QSD measures velocity to an accuracy of ±2% and depth to ±1% of range. This is logged to a resolution of 1 mm/sec and 1mm respectively.

  • Page 34: The Speed Of Sound In Water

    Starflow QSD and applied in the correction of velocity measurements. The Starflow QSD corrects for the variation of the speed of sound in water due to temperature using a factor of 0.00138mm/s/Hz/°C. This correction is a best fit for water temperatures between 0°C to 30°C.

This manual is also suitable for:

6527b6537a

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