Flexim FLUXUS WW User Manual
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Flexim FLUXUS WW User Manual

Ultrasonic flowmeter for water and wastewater
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UMFLUXUS_WWV1-1EN
Ultrasonic flowmeter
for water and wastewater
FLUXUS WW

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Summary of Contents for Flexim FLUXUS WW

  • Page 1 User manual UMFLUXUS_WWV1-1EN Ultrasonic flowmeter for water and wastewater FLUXUS WW...

  • Page 2: Umfluxus_Wwv1-1En, 2018

    FLUXUS is a registered trademark of FLEXIM GmbH. FLEXIM GmbH Boxberger Straße 4 12681 Berlin Germany Tel.: +49 (30) 936 67 660 Fax: +49 (30) 936 67 680 E-mail: info@flexim.de www.flexim.com User manual for FLUXUS WW UMFLUXUS_WWV1-1EN, 2018-02-28 Firmware version: V6.28 Copyright (©) FLEXIM GmbH 2018...
  • Page 3 FLUXUS WW Die Sprache, in der die Anzeigen auf dem Messumformer erscheinen, kann eingestellt werden (siehe Abschnitt 9.6). The transmitter can be operated in the language of your choice (see section 9.6). Il est possible de sélectionner la langue utilisée par le transmetteur à l'écran (voir section 9.6).
  • Page 4 FLUXUS WW UMFLUXUS_WWV1-1EN, 2018-02-28...

  • Page 5: Table Of Contents

    Table of contents FLUXUS WW Table of contents Introduction ................9 Regarding this user manual.
  • Page 6 FLUXUS WW Table of contents Basic measurement ..............72 10.1...
  • Page 7 Table of contents FLUXUS WW Outputs................110 16.1...
  • Page 8 FLUXUS WW Table of contents UMFLUXUS_WWV1-1EN, 2018-02-28...

  • Page 9: Introduction

    • unsuitable or insufficient maintenance • repair of FLUXUS by unauthorized personnel FLEXIM assumes no responsibility neither for damages to the customer or third persons directly caused by material failure due to unpredictable defects in the product nor for any indirect damages.

  • Page 10: Safety Instructions

    The measuring equipment has to be checked for proper condition and operational safety before each use. If disturbances or damages have occurred during installation or operation of the measuring equipment, please inform FLEXIM. It is not allowed to make unauthorized modifications or alterations to the measuring equipment.

  • Page 11: Not Intended Use

    • With the exceptions stated in chapter 11, the measuring equipment is maintenance-free. Any components and spare parts may only be replaced by FLEXIM. The operator shall carry out periodic checks for changes or damages that can present a danger. If you have any questions, please contact FLEXIM.

  • Page 12: Safety Instructions For Transport

    Fig. 2.1: Transmitter FLUXUS FWW Safety instructions for transport • If you detect a transport damage when unpacking the delivery, please contact the supplier or FLEXIM immediately. • The transmitter is a sensitive electronic measuring instrument. Avoid shocks or impacts.

  • Page 13: Handling

    • Protect the transmitter from shocks. • The housing may only be opened by authorized personnel. The degree of protection of the transmitter FLUXUS WW is only ensured if the front plate is tightly screwed to the housing.

  • Page 14: General Principles

    FLUXUS WW 4 General principles General principles In ultrasonic flow measurements, the flow velocity of the fluid in a pipe is determined. Further physical quantities (e.g., vol- umetric flow rate, mass flow rate) are derived from the flow velocity and from additional physical quantities, if necessary.
  • Page 15 4 General principles FLUXUS WW Sound speed c Speed of the propagating sound. The sound speed depends on the mechanical properties of the fluid or the pipe material. In pipe materials and other solid materials, a distinction is made between the longitudinal and transversal sound speed.
  • Page 16 FLUXUS WW 4 General principles transducer (emitter) transducer (receiver) distance reduction in the transducer α α α pipe wall β β γ flow direction γ of the fluid sound path without flow sound path with flow Fig. 4.2: Sound path of the signal in the flow direction...
  • Page 17 4 General principles FLUXUS WW 4.2.3 Measurement of the flow velocity in the NoiseTrek mode When fluids with a high proportion of gas bubbles or solid particles are measured, the attenuation of the ultrasonic signal increases and can inhibit the propagation of the signal in the fluid. A measurement in the TransitTime mode is no longer possible.

  • Page 18: Measurement Arrangements

    FLUXUS WW 4 General principles NoiseTrek parallel beam For small pipes or highly damping fluids, the transit time in the fluid is very small. This leads to a deterioration of the signal quality. In this case the NoiseTrek mode has to be used.
  • Page 19 4 General principles FLUXUS WW Transducer distance Distance between the transducers. It is measured between the inner edges of the transducers. reflection arrangement transducer distance diagonal arrangement transducer distance (positive transducer distance) diagonal arrangement (negative transducer distance) transducer distance Sound beam plane Plane containing 1, 2 or more sound paths or beams (see Fig.
  • Page 20 FLUXUS WW 4 General principles 4.3.2 Examples diagonal arrangement with 1 beam reflection arrangement with 1 beam 1 transducer pair 1 transducer pair 1 sound path 2 sound paths 1 beam 1 beam 1 plane 1 plane diagonal arrangement with 2 beam...

  • Page 21: Description Of The Transmitter

     outputs (FLUXUS F704**-A2) Fig. 5.1: Command panel of FLUXUS WW Keyboard The keyboard consists of the 3 function keys ENTER, BRK and C and 10 numerical keys. Several keys have double functions. They can be used to enter data or to navigate through scroll lists.
  • Page 22 FLUXUS WW 5 Description of the transmitter Tab. 5.3: Input of numbers input of the number shown on the key sign for the input of negative values decimal marker Deleting values. After the value has been deleted, the previous value will be displayed.

  • Page 23: Measuring Point Selection

    6 Measuring point selection FLUXUS WW Measuring point selection Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document). The correct selection of the measuring point is crucial for achieving reliable measurement results and a high measurement accuracy.
  • Page 24 FLUXUS WW 6 Measuring point selection Observe the notes in the following table: Tab. 6.1: Recommended transducer mounting position horizontal pipe Select a measuring point where the transducers can be mounted on the side of the pipe, allowing the sound waves to propagate horizontally in the pipe.

  • Page 25: Undisturbed Flow Profile

    6 Measuring point selection FLUXUS WW Undisturbed flow profile Some flow elements (elbows, slide valves, valves, control valves, pumps, reducers, diffusers, etc.) distort the flow profile in their vicinity. The axisymmetrical flow profile needed for correct measurement is no longer given. A careful selection of the measuring point helps to reduce the impact of disturbance sources.
  • Page 26 FLUXUS WW 6 Measuring point selection Tab. 6.2: Recommended distance from disturbance sources; D – nominal pipe diameter at the measuring point, l – recommended distance disturbance source: reducer inlet: l ≥ 10 D outlet: l ≥ 5 D disturbance source: pump inlet: l ≥...

  • Page 27: Selection Of The Measurement Arrangement Taking Into Account The Measuring Range And The Measuring Conditions

    6 Measuring point selection FLUXUS WW Selection of the measurement arrangement taking into account the measuring range and the measuring conditions Diagonal arrangement with 1 beam Reflection arrangement with 1 beam • wider flow velocity and sound speed range compared to •...

  • Page 28: Selection Of The Sound Beam Plane Near An Elbow

    FLUXUS WW 6 Measuring point selection Selection of the sound beam plane near an elbow Vertical pipes Horizontal pipes flow direction elbow plane elbow plane flow direction • The sound beam plane (see section 4.3.1) has an angle • The sound beam plane (see section 4.3.1) has an angle of 90°...

  • Page 29: Installation

    P4+ P5a P6a P7a SA1 SA2 SA3 SA4 SB1 SB2 SB3 SB4 T1a T1b S2 T2a T3a T3b S4 T4a 101 103 P1- P2- P4- P5b P6b P7b PE N(-) L(+) Fig. 7.1: FLUXUS WW (dimensions in mm) UMFLUXUS_WWV1-1EN, 2018-02-28...
  • Page 30 FLUXUS WW 7 Installation 7.2.3 Pipe installation Installation on a 2'' pipe The pipe mounting kit is fixed to the pipe using a shackle. • Fix the pipe mounting plate (2) and the instrument mounting plate (3) to the pipe using the nuts (4) and the shackle (1) (see Tab.
  • Page 31 7 Installation FLUXUS WW Fig. 7.4: Pipe installation with tension straps UMFLUXUS_WWV1-1EN, 2018-02-28...

  • Page 32: Transducers

    FLUXUS WW 7 Installation Transducers Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document). 7.3.1 Pipe preparation • The pipe has to be stable. It has to be able to withstand the pressure exerted by the transducer mounting fixture.
  • Page 33 Installation FLUXUS WW 7.3.3 Transducer mounting fixture Variofix L (PermaRail) When measuring in reflection arrangement, the transducer mounting fixtures are mounted on the same side of the pipe (see Fig. 7.6). When measuring in diagonal arrangement, the transducer mounting fixtures are mounted on the opposite sides of the pipe (see Fig.
  • Page 34 FLUXUS WW Installation Tab. 7.1: Approximate values for the mounting of a Variofix L transducer frequency length of the rail length of the transducer (third character of the technical type) [mm] [mm] < 69 M, P < 84 (Lamb wave transducers)...
  • Page 35 Installation FLUXUS WW Ratchet clasp • Cut the tension strap to length (pipe circumference + at least 120 mm). Attention! The edge of the tension strap is very sharp, leading to risk of injury. Debur sharp edges. • Insert approx. 100 mm of the tension strap into part 1 and 2 of the clasp (see Fig. 7.12 a).
  • Page 36 FLUXUS WW Installation metal spring tension strap clamp Fig. 7.14: Tension strap with tension strap clamp Fig. 7.15: Tension strap with metal spring screw of the clasp screw of the clasp Fig. 7.16: Band clamp clasp with tension strap Fig. 7.17: Quick release clasp with tension strap Ratchet clasp •...
  • Page 37 Installation FLUXUS WW 7.3.3.4 Fixing the rail to the pipe • Place one tension strap clamp in the rail (see tension strap clamp 1 in Fig. 7.20). Observe the orientation of the tension strap clamp. • Tighten the nut of tension strap clamp 1 slightly.
  • Page 38 FLUXUS WW Installation Quick release clasp • Insert the tension strap into tension strap clamp 1 and the metal spring (see Fig. 7.24 and Fig. 7.22). • Place the tension strap around the pipe and insert it into the clasp.
  • Page 39 Installation FLUXUS WW • Repeat the steps to fix the second rail (see Fig. 7.27). Fig. 7.27: Pipe with 2 rails 7.3.3.5 Installation of the transducers in Variofix L • Press the transducers firmly into the transducer clamping fixtures of the covers until the transducers are tightly fixed (one transducer in each cover).
  • Page 40 FLUXUS WW Installation • Put the covers with the transducers on the rail. • Correct the transducer distance, if necessary (see section 10.5.1 and 10.5.2). Note! Make sure that the coupling foil remains on the contact surface of the transducers.
  • Page 41 7 Installation FLUXUS WW 7.3.4 Installation with Variofix C When measuring in reflection arrangement, 1 transducer mounting fixture is mounted on the side of the pipe (see Fig. 7.31). When measuring in diagonal arrangement, 2 transducer mounting fixtures are mounted on opposite sides of the pipe (see Fig.
  • Page 42 FLUXUS WW 7 Installation 7.3.4.1 Disassembly of Variofix C • Disassemble the transducer mounting fixture Variofix C. In order to remove the cover from the rail, bend the outer sides of the cover outwards (see Fig. 7.34). In order to remove the spring clip from the rail, slide it over the indentation on the rail and lift it off (see Fig. 7.35).
  • Page 43 7 Installation FLUXUS WW tension strap clamp Fig. 7.36: Tension strap with tension strap clamp tension strap clamp metal spring metal spring Fig. 7.37: Tension strap with metal spring and tension strap clamp • Position the metal spring (if mounted) and the tension strap clamp (see Fig. 7.38): –...
  • Page 44 FLUXUS WW 7 Installation screws Fig. 7.39: Rail on the pipe Installation of the rail with the ratchet clasp • Cut the tension strap to length (pipe circumference + at least 120 mm). Note! The edge of the tension strap is very sharp, leading to risk of injury. Debur sharp edges.
  • Page 45 7 Installation FLUXUS WW • Repeat the steps for the second tension strap. metal spring ratchet clasp tension strap clamp Fig. 7.42: Tension strap with metal spring, the ratchet clasp and tension strap clamp on the pipe Fig. 7.43: Ratchet clasp with tension strap screw of...
  • Page 46 FLUXUS WW 7 Installation 7.3.4.3 Installation of the transducers in Variofix C • Put coupling foil (or some coupling compound for a short-term installation) on the contact surface of the transducers. The coupling foil can be fixed to the contact surface with a small amount of coupling compound.
  • Page 47 7 Installation FLUXUS WW The cover can be removed from the mounted transducer mounting fixture Variofix C as follows: • Use a lever tool to remove the cover. • Insert the lever tool in one of the 4 openings of the cover (see Fig. 7.49).
  • Page 48 FLUXUS WW 7 Installation 7.3.5 Installation with transducer shoe and tension strap • Cut the tension straps to length (pipe circumference + at least 120 mm). • Make sure that part (2) of the clasp is on top of part (1) (see Fig. 7.50). The hooks of part (2) have to be on the outer side of the clasp.

  • Page 49: Connection

    T1A T1B S1 T2A T3A T3B S3 T4A A+ B- P1+ P2+ P4+ P5a P6a P7a T1a T1b S2 T2a T3a T3b S4 T4a 101 103 P1- P2- P4- P5b P6b P7b PE N(-) L(+) Fig. 8.1: Transmitter FLUXUS WW UMFLUXUS_WWV1-1EN, 2018-02-28...

  • Page 50: Transducers

    FLUXUS WW 8 Connection Transducers Note! If transducers are replaced or added, the sensor module also has to be replaced or added (see sec- tion 8.5). It is recommended to run the cables from the measuring point to the transmitter before connecting the transducers to avoid load on the connectors.
  • Page 51 8 Connection FLUXUS WW Tab. 8.1: Terminal assignment (transducer cable) terminal connection X_AV SMB connector (brown cable, marked white) X_AR SMB connector (brown cable, marked black) 8.1.1.2 Transducer cable with plastic cable jacket and stripped cable ends Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
  • Page 52 FLUXUS WW 8 Connection compression part basic part cap nut N E X T D I S P U L T R A S O N I C F L O W M E T E R M U X...
  • Page 53 8 Connection FLUXUS WW AGN ARS AR BGN BRS BR T1A T1B S1 T2A T3A T3B S3 T4A A+ B- P1+ P2+ P4+ P5a P6a P7a SA1 SA2 SA3 SA4 SB1 SB2 SB3 SB4 T1a T1b S2 T2a T3a T3b S4 T4a...
  • Page 54 FLUXUS WW 8 Connection 8.1.2 Connection of the extension cable to the transmitter Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document). • Remove the left blind plug for the connection of extension cable (see Fig. 8.5).
  • Page 55 8 Connection FLUXUS WW 8.1.3 Connection of the extension cable to the junction box 8.1.3.1 Connection without potential separation (standard) The connection of the extension cable to the junction box without potential separation ensures that transducer, junction box and transmitter are on the same potential. The extension cable should always be connected in this manner, especially if power current cables are nearby the extension cable.
  • Page 56 FLUXUS WW 8 Connection Tab. 8.5: Terminal assignment (extension cable, KL2) terminal connection white or marked cable (core) white or marked cable (internal shield) brown cable (internal shield) brown cable (core) cable gland external shield UMFLUXUS_WWV1-1EN, 2018-02-28...
  • Page 57 8 Connection FLUXUS WW 8.1.3.2 Connection with potential separation If earthing on the same potential cannot be ensured e.g., in measurement arrangements with long extension cables, the extension cables and junction box have to be insulated from each other. The junction box and the transmitter have to be on the same potential.
  • Page 58 FLUXUS WW 8 Connection Tab. 8.6: Terminal assignment (extension cable, KL2) terminal connection white or marked cable (core) white or marked cable (internal shield) brown cable (internal shield) brown cable (core) shield terminal external shield UMFLUXUS_WWV1-1EN, 2018-02-28...
  • Page 59 8 Connection FLUXUS WW 8.1.4 Connection of the transducer cable to the junction box Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document). For the connection of the transducer cable with SMB connectors (connection system TS), see section 8.1.4.1.
  • Page 60 FLUXUS WW 8 Connection • Fix the cable gland by screwing the cap nut onto the basic part. • Connect the transducer cable to the terminals of the junction box (see Fig. 8.11 and Tab. 8.8). Tab. 8.8: Terminal assignment (KL1)
  • Page 61 8 Connection FLUXUS WW 8.1.4.3 Transducer cable with stainless steel conduit and stripped cable ends Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document). • Remove the right blind plug for the connection of the transducer cable (see Fig. 8.12).

  • Page 62: Power Supply

    T3a T3b S4 T4a 101 103 P1- P2- P4- P5b P6b P7b PE N(-) L(+) equipotential bonding terminal  cable gland (FLUXUS F704**-A2) Fig. 8.13: Transmitter FLUXUS WW Tab. 8.10: Terminal assignment terminal connection AC connection DC earth earth N(-)

  • Page 63: Outputs

    SB1 SB2 SB3 SB4 101 103 P1- P2- P4- P5b P6b P7b T1a T1b S2 T2a T3a T3b S4 T4a PE N(-) L(+) cable gland Fig. 8.14: Transmitter FLUXUS WW Tab. 8.11: Konfiguration der Ausgänge output transmitter external circuit remark internal circuit connection ...

  • Page 64: Serial Interface

    101 103 P1- P2- P4- P5b P6b P7b PE N(-) L(+) cable gland Fig. 8.15: Transmitter FLUXUS WW 8.4.2 RS485 interface The transmitter can also be equipped with an RS485 interface (optional). For the connection of the RS485 cable to the transmitter, see box "Cable connection" p. 62, Fig. 8.1 and Tab. 8.11).

  • Page 65: Sensor Module (Sensprom)

    P4- P5b P6b P7b PE N(-) L(+) separate sensor module Fig. 8.16: Transmitter FLUXUS WW (connection system TS) If transducers are replaced or added, the sensor module has to be replaced or added, too. Note! The serial numbers of the sensor module and the transducer have to be identical. A wrong or incor- rectly connected sensor module will result in incorrect measured values or in measurement failure.

  • Page 66: Sd Card (Optional)

    Prior to this, the serial data transmission has to be parametrized. For the parametrization and activation of the serial data transmission, see section 13.2. When the housing is opened, the SD card can be extracted and the measured values can be read out by a PC. SD card Fig. 8.18: Transmitter FLUXUS WW UMFLUXUS_WWV1-1EN, 2018-02-28...

  • Page 67: Start-Up Of The Transmitter

    As soon as the transmitter is connected to the power supply, it is displayed which transduc- FLEXIM FLUXUS er has been detected at which channel. FLUXUS WW -XXXXXXXX Afterwards, the serial number of the transmitter is displayed for a short time. It is not possible to enter any data while the serial number is displayed.

  • Page 68: Initialization

    FLUXUS WW 9 Start-up of the transmitter Initialization During an initialization (INIT) of the transmitter, the settings in the program branches Parameter and Output Options and some of the settings in the program branch Special Funct. are reset to the default settings of the manufacturer.
  • Page 69 9 Start-up of the transmitter FLUXUS WW For an overview of the program branches, see figure below. For a detailed overview of the menu structure, see annex A. Parameter Measuring Output Options Special Funct. >PAR< >MEA< >OPT< >SF< ↓ ↓...

  • Page 70: Hotcodes

    FLUXUS WW 9 Start-up of the transmitter 9.4.3 Navigation If a vertical arrow (↕) is displayed, the menu item contains a scroll list. The current list item is displayed in the lower line. Press key to scroll and select a list item in the lower line. Press ENTER.

  • Page 71: Language Selection

    After the power supply has returned, the serial number is displayed for a few seconds. FLEXIM FLUXUS FLUXUS WW -XXXXXXXX The interrupted measurement is continued. All selected output options are still active. If an initialization was carried out, the measurement will not be continued after restoring the power supply.

  • Page 72: Basic Measurement

    FLUXUS WW 10 Basic measurement Basic measurement Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document). The pipe and fluid parameters are entered for the selected measuring point (see chapter 6). The parameter ranges are limited by the technical characteristics of the transducers and the transmitter.
  • Page 73 10 Basic measurement FLUXUS WW 10.1.3 Pipe material The pipe material has to be selected to be able to determine the sound speed. The sound speeds for the materials in the scroll list are stored in the transmitter. Select the pipe material.

  • Page 74: Other Parameters

    Press ENTER. Note! If standard transducer parameters are selected in the list item Special Version, FLEXIM cannot guarantee for the precision of the measured values. A measurement might be even impossible. If Special Version is selected, enter the 6 transducer parameters specified by the man- Transd.

  • Page 75: Input Of The Sound Path Number

    10 Basic measurement FLUXUS WW 10.4 Input of the sound path number A value for the number of sound paths corresponding to the connected transducers and the A: Sound Path A:  entered parameters is recommended. Change the value, if necessary. Press ENTER.
  • Page 76 FLUXUS WW 10 Basic measurement 10.5.2 Consistency check If a wide range for the sound speed has been entered in the program branch Parameter or the exact parameters of the fluid are unknown, a consistency check is recommended. The transducer distance can be displayed during the measurement by scrolling the key The optimum transducer distance is displayed in brackets (here: 50.0 mm) in the upper...

  • Page 77: Start Of Measurement

    10 Basic measurement FLUXUS WW 10.6 Start of measurement The measured values are displayed in the lower line. Press ENTER to return to the fine ad- A:Volume flow justment of the transducer distance (see section 10.5.1). 31.82 m3/h If more than one measuring channel is available/activated, the transmitter works with an integrated multiplexer providing simultaneous measurement on the different measuring channels.

  • Page 78: Displaying Measured Values

    FLUXUS WW 11 Displaying measured values Displaying measured values The physical quantity is set in the program branch Output Options (see section 11.1). During the measurement, the designation of the physical quantity is displayed in the upper line, the measured value in the lower line.

  • Page 79: Adjustment Of The Display

    11 Displaying measured values FLUXUS WW All channels The measured values of all channels (measuring and calculation channels) are displayed. The next active channel is se- lected after min. 1.5 s. Only calculation channels Only the measured values of the calculation channels are displayed. The next active calculation channel is displayed after min.

  • Page 80: Status Line

    FLUXUS WW 11 Displaying measured values 11.4 Status line Important information of the running measurement are summarized in the status line. Quality and precision of the running measurement can be evaluated. Press key during the measurement to scroll through the upper line to the status line.

  • Page 81: Transducer Distance

    11 Displaying measured values FLUXUS WW 11.5 Transducer distance By pressing key during the measurement, it is possible to scroll to the display of the L=(51.2) 50.8 mm transducer distance. 54.5 m3/h The optimum transducer distance (here: 51.2 mm) will be displayed in parentheses in the upper line, followed by the en- tered transducer distance (here: 50.8 mm).

  • Page 82: Advanced Measuring Functions

    FLUXUS WW 12 Advanced measuring functions Advanced measuring functions 12.1 Damping factor Each displayed measured value is a floating average of all measured values of the last x seconds, with x being the damp- ing factor. A damping factor of 1 s means that the measured values are not averaged because the measuring rate is ap- prox 1/s.

  • Page 83: Settings Of The Noisetrek Parallel Beam Mode

    12 Advanced measuring functions FLUXUS WW Selection of the flow totalizers for storing It is possible to only store the value of the flow totalizer that is currently displayed or one value for each flow direction. Se- lect Special Funct.\SYSTEM settings\Storing\Quantity Storage.

  • Page 84: Settings Of The Hybridtrek Mode

    FLUXUS WW 12 Advanced measuring functions 12.4 Settings of the HybridTrek mode The HybridTrek mode combines the TransitTime mode and the NoiseTrek mode. During a measurement in the Hy- bridTrek mode, the transmitter automatically toggles between the TransitTime mode and the NoiseTrek mode depending on the gaseous or solid content in the fluid in order to receive valid measuring values.

  • Page 85: Upper Limit Of The Flow Velocity

    12 Advanced measuring functions FLUXUS WW 12.5 Upper limit of the flow velocity Single outliers caused by heavily disturbed surroundings can appear among the measured values of the flow velocity. If these outliers are not ignored, they will affect all derived physical quantities, which will then be unsuitable for the integra- tion (e.g., pulse outputs).

  • Page 86: Uncorrected Flow Velocity

    FLUXUS WW 12 Advanced measuring functions 12.7 Uncorrected flow velocity For special applications, the uncorrected flow velocity might be of interest. The profile correction for the flow velocity is activated in Special Funct.\SYSTEM settings\Measuring\Miscella- neous\Flow Velocity. Select normal to display and output the flow velocity with profile correction.

  • Page 87: Calculation Channels

    12 Advanced measuring functions FLUXUS WW 12.8.2 Storage rate of the FastFood mode If the FastFood mode is enabled, a Storage Rate in ms will have to be entered in the Storage Rate program branch Output Options. Press ENTER. 12.8.3 Activation/deactivation of the FastFood mode If the FastFood mode is enabled and a measurement is started, the normal measuring mode will still be running (i.e.
  • Page 88 FLUXUS WW 12 Advanced measuring functions Three scroll lists are displayed in the upper line. >CH1< funct ch2↕ • selection of the first measuring channel (ch1) • selection of the calculation function (funct) • selection of the second measuring channel (ch2) Select a scroll list with key The list items are displayed in the lower line.

  • Page 89: Change Of The Limit For The Inner Pipe Diameter

    12 Advanced measuring functions FLUXUS WW Select the unit of measurement. Press ENTER. Mass in: ↕ kg/h It is possible to define 2 cut-off flows for each calculation channel. They are defined in the unit of measurement of the physical quantity selected for the calculation channel.

  • Page 90: Diagnosis By Means Of The Snap Function

    FLUXUS WW 12 Advanced measuring functions 12.11 Diagnosis by means of the snap function By means of the snap function it is possible to store measuring parameters which are useful for the evaluation of measur- ing results or diagnostic purposes.

  • Page 91: Program Code

    12 Advanced measuring functions FLUXUS WW 12.12 Program code A running measurement can be protected from an inadvertent intervention by a program code. If a program code has been defined, it will be requested in case of any intervention in the measurement (a command or key BRK).

  • Page 92: Data Logger And Transmission Of Data

    FLUXUS WW 13 Data logger and transmission of data Data logger and transmission of data The transmitter has a data logger in which the measured values are stored during the measurement (see section 13.1). In addition, the measured values can be transmitted to a PC via the serial interface or stored on a SD card (see section 13.2).
  • Page 93 13 Data logger and transmission of data FLUXUS WW 13.1.3 Data logger settings Select Special Funct.\SYSTEM settings\Storing. It contains the following menu items: • start of storing • ringbuffer • storage mode • totalizer storing • signal amplitude storing • storing of the fluid sound speed •...
  • Page 94 Special Funct. ↕ Instrum. Inform. The type and the serial number of the transmitter are displayed in the upper line. FLUXUS WW -XXXXXXXX The available data logger will be displayed in the lower line (here: 18 327 additional mea- Free: 18327 sured values can be stored).

  • Page 95: Data Transmission

    13 Data logger and transmission of data FLUXUS WW Max. 100 series of measured values can be stored. The number of series of measured values depends on the total num- ber of measured values stored in the previous series of measured values.
  • Page 96 FLUXUS WW 13 Data logger and transmission of data 13.2.3 Format of measurement data Select Special Funct.\SYSTEM settings\serial transmis. Select on if the space characters are not to be transmitted. Press ENTER. SER:kill spaces The file size will be considerably smaller (shorter transmission time).
  • Page 97 13 Data logger and transmission of data FLUXUS WW 13.2.5 Online transmission of data to a terminal program or SD card • Start the terminal program. • Enter the transmission parameters into the terminal program (see section 13.2.4). The transmission parameters of the terminal program and the transmitter have to be identical.
  • Page 98 FLUXUS WW 13 Data logger and transmission of data 13.2.7 Structure of the data First, the header is transmitted. The first 4 lines contain general information about the transmitter and the measurement. The following lines contain the parameters for each channel.
  • Page 99 13 Data logger and transmission of data FLUXUS WW Online transmission Columns will be created for all quantities appearing during the measurement. The columns Q_POS and Q_NEG will re- main empty if the totalizers are deactivated. As the totalizers cannot be activated for the physical quantity "flow velocity", these columns will not be generated.

  • Page 100: Settings

    FLUXUS WW 14 Settings Settings 14.1 Time and date The transmitter has a battery-powered clock. Measured values are automatically stored with date and time. 14.1.1 Time Select Special Funct.\SYSTEM settings\Set Clock. SYSTEM settings↕ Press ENTER. Set Clock The current time is displayed. Select ok to confirm the time or new to adjust it. Press EN- TIME 11:00...
  • Page 101 14 Settings FLUXUS WW During the next scroll through the program branch Parameter, the outer pipe diameter Outer Diameter that corresponds to the entered pipe circumference will be displayed. 57.3 Example: 180 mm : π = 57.3 mm Note! The edition of the pipe circumference is only temporarily. When the transmitter switches back to the display of the pipe circumference (internal recalculation), slight rounding errors may occur.
  • Page 102 FLUXUS WW 14 Settings 14.2.7 Units of measurement It is possible to set the units of measurement for the length, temperature, pressure, density and kinematic viscosity and sound speed: Select mm or inch as the unit of measurement for the length. Press ENTER.

  • Page 103: Measurement Settings

    14 Settings FLUXUS WW 14.3 Measurement settings Select Special Funct.\SYSTEM settings\Measuring. Press ENTER. SYSTEM settings↕ Measuring Note! The settings will be stored at the end of the dialog. If the menu item is quit by pressing key BRK, the changes will not be stored.

  • Page 104: Setting The Contrast

    Press ENTER. Instrum. Inform. The type and the serial number of the transmitter are displayed in the upper line. FLUXUS WW -XXXXXXXX The available data logger will be displayed in the lower line (here: 18 327 additional mea- Free: 18327 sured values can be stored).

  • Page 105: Superuser Mode

    15 SuperUser mode FLUXUS WW SuperUser mode The SuperUser mode offers the possibility of an advanced diagnostic of signal and the measured values as well as the definition of additional parameters adapted to the measuring point, in order to achieve better measuring values or for ex- perimental work.
  • Page 106 FLUXUS WW 15 SuperUser mode 15.3.1 Profile bounds Select user to define the profile bounds. If factory is selected, the default profile bounds A:Profile bounds will be used and the menu item Calibration will be displayed (see section 15.3.2). factory >USER<...

  • Page 107: Limit Of The Signal Amplification

    15 SuperUser mode FLUXUS WW Example 1: Slope: 1.1 Offset: -10.0 cm/s = -0.1 m/s If a flow velocity v = 5 m/s is measured, before the calculation of the derived quantities, it will be cor- rected as follows: = 1.1 · 5 m/s - 0.1 m/s = 5.4 m/s Example 2: Slope: -1.0...

  • Page 108: Detection Of Long Measurement Failures

    FLUXUS WW 15 SuperUser mode It is possible to display the valid range for the sound speed (SS=)in the lower line within the GAIN=91dB program branchMeasuring during the measurement. The second value (here: 2 146 m/s) SS=1038/2146 m/s corresponds to the upper limit at the operating point.

  • Page 109: Manual Reset Of The Totalizers

    15 SuperUser mode FLUXUS WW 15.8 Manual reset of the totalizers If the manual reset of the totalizers is activated, the totalizers can be reset to zero during the measurement by pressing key C three times, even if a program code is activated.

  • Page 110: Outputs

    FLUXUS WW 16 Outputs Outputs If the transmitter is equipped with outputs, they have to be installed and activated before they can be used: • assignment of a measuring channel (source channel) to the output (if the transmitter has more than one measuring channel) •...
  • Page 111 16 Outputs FLUXUS WW Tab. 16.1: Configuration of the outputs source item list item output physical quantity selected in the program branch Output Measuring value actual measure tions flow, independently of the physical quantity selected in the program Flow branch Output Options...
  • Page 112 FLUXUS WW 16 Outputs 16.1.2 Error output In the following dialog, an error value can be defined which is output in case a source item cannot be measured, e.g., if there are gas bubbles in the fluid. Tab. 16.2: Error output...
  • Page 113 16 Outputs FLUXUS WW Tab. 16.3: Examples for the error output list item for the error output output signal I [ m A ] Error-value ↕ Maximum (20.0mA) Error-value ↕ I [ m A ] Other value...   error output = 2 mA Select a list item for the error output.

  • Page 114: Error Value Delay

    FLUXUS WW 16 Outputs 16.1.3 Function test Connect a multimeter to the installed output. Test of the analog outputs The current output is tested. Enter a test value. It has to be within the output range. Press I1:Output Test ENTER.

  • Page 115: Activation Of An Analog Output

    16 Outputs FLUXUS WW 16.3 Activation of an analog output Note! An output can only be activated in the program branch Output Options if it has previously been in- stalled. Select the channel for which an output is to be activated in the program branch Output Output Options ↕...

  • Page 116: Activation Of A Binary Output As A Pulse Output

    FLUXUS WW 16 Outputs 16.4 Activation of a binary output as a pulse output A pulse output is an integrating output which emits a pulse when the volume or the mass of the fluid which has passed the measuring point reaches a given value (Pulse Value). The integrated quantity is the selected physical quantity. Integra- tion is restarted as soon as a pulse is emitted.
  • Page 117 16 Outputs FLUXUS WW Press ENTER to store the settings. Tab. 16.4: Alarm properties alarm property setting description The alarm will switch if the measured value exceeds the upper func (switching condition) limit. The alarm will switch if the measured value falls below the...
  • Page 118 FLUXUS WW 16 Outputs Example 2: Low Limit: -10 m³/h volumetric flow rate = -11 m³/h the measured value is below the limit, the alarm switches volumetric flow rate = -9.9 m³/h the measured value is not below the limit, the alarm does not switch If the switching condition func is selected in the scroll list QUANT., the limit of the output will have to be defined:...

  • Page 119: Behavior Of The Alarm Outputs

    16 Outputs FLUXUS WW 16.6 Behavior of the alarm outputs 16.6.1 Apparent switching delay The measured values and the totalizer values will be displayed rounded to 2 decimal places. The limits, however, will be compared to the non-rounded measured values. This might cause an apparent switching delay when the measured value changes marginally (less than 2 decimal places).
  • Page 120 FLUXUS WW 16 Outputs When adjusting to changed measurement conditions e.g, a substantial increase of the fluid temperature, the alarm will not be switched. Alarm outputs with the switching condition OFF will be set automatically to the switching function NO Cont..

  • Page 121: Deactivation Of The Outputs

    16 Outputs FLUXUS WW 16.7 Deactivation of the outputs If the programmed outputs are no longer required, they can be deactivated. The configuration of a deactivated output is stored and will be available if the output is activated again. Select no in Output Options\Alarm Output to deactivate an output. Press ENTER.

  • Page 122: Troubleshooting

    A program code has been defined. Press key C and enter the program code. The backlight of the display does not work, but all other functions are available The backlight is defective. This problem has no influence on other functions of the display. Send the transmitter to FLEXIM for repair.

  • Page 123: Measuring Point Selection

    Signal loss during the measurement • If there is no measuring signal after the pipe had been run empty and refilled, contact FLEXIM. • Wait a moment until the acoustic contact is reestablished. The measurement can be interrupted by a temporarily higher proportion of gas bubbles and solids in the fluid.

  • Page 124: Large Deviations Of The Measured Values

    FLUXUS WW 17 Troubleshooting 17.5 Large deviations of the measured values The entered sound speed of the fluid is wrong A wrong sound speed can result in the ultrasonic signal that is reflected directly on the pipe wall being mistaken for the measuring signal that has passed through the medium.

  • Page 125: Annex

    A Menu structure FLUXUS WW Annex Menu structure INIT-resis- tant Program branch Parameter main menu: selection of the program branch Parameter >PAR< mea opt sf Parameter selection of a measuring channel (A, B) or a calculation channel (Y, Z) Parameter ↕...
  • Page 126 FLUXUS WW A Menu structure INIT-resis- tant input of the fluid pressure Fluid pressure range: 1...600 bar 1.00 This display will only be indicated if Special Funct.\SYSTEM set- tings\Measuring\Gas-Measuring is activated or if Gas-Measur- ing is deactivated and Special Funct.\SYSTEM settings\Dia- logs/Menus is activated.
  • Page 127 A Menu structure FLUXUS WW INIT-resis- tant selection of the unit of measurement for the physical quantity Volume in: ↕ m3/h input of the duration over which a floating average of the measured val- Damping ues has to be determined range: 1...600 s...
  • Page 128 FLUXUS WW A Menu structure INIT-resis- tant input of the upper limit of the physical quantity to be monitored High Limit: This display will only be indicated if Alarm Output is activated and MAX -10.00 m3/h is selected as the switching condition.
  • Page 129 A Menu structure FLUXUS WW INIT-resis- tant selection of the error value delay Error-val. delay • damping: The damping factor will be used. damping >EDIT< • edit: The menu item for the input of the error value delay in the pro- gram branch Output Options will be activated.
  • Page 130 FLUXUS WW A Menu structure INIT-resis- tant input of the time after which the transmitter toggles to the TransitTime NT-Failed |After mode if there are no valid measured values in the NoiseTrek mode TransTime |  range: 0...9999 s 0: without toggling to the TransitTime mode This display will only be indicated if the automatic toggling between the TransitTime mode and NoiseTrek mode is activated.
  • Page 131 A Menu structure FLUXUS WW INIT-resis- tant input of the cut-off flow for the absolute value of the measured values Cut-off Flow range: 0…12.7 cm/s cm/s default: 2.5 cm/s This display will only be indicated if Cut-off Flow = absolut and Cut-off Flow = user is selected.
  • Page 132 FLUXUS WW A Menu structure INIT-resis- tant Special Funct.\SYSTEM settings\Measuring\Calibrat. data selection of the measuring channel whose flow parameters are to be de- Calibrat. data ↕ fined for Channel This display will only be indicated if the SuperUser mode is activated.
  • Page 133 A Menu structure FLUXUS WW INIT-resis- tant setting of the storing behavior of the totalizers Quantity Storage • one: the value of the totalizer that is currently displayed will be stored >BOTH< • both: one value for each flow direction will be stored activation of the signal amplitude storing Store Amplitude...
  • Page 134 Special Funct. ↕ Instrum. Inform. display of type, serial number and max. available data logger memory FLUXUS WW -XXXXXXXX Free: 18327 display of type, serial number and firmware version with date ...
  • Page 135 A Menu structure FLUXUS WW INIT-resis- tant Program code selection of the displays for the input of a program code Special Funct. ↕ set program code defining a program code set program code ------ input of the break code (= program code) INPUT BREAK_CODE...

  • Page 136: B Units Of Measurement

    FLUXUS WW B Units of measurement Units of measurement length/roughness temperature unit of measurement description unit of measurement description millimeter °C degree Celsius inch inch °F degree Fahrenheit pressure unit of measurement description bar(a) bar (absolute) bar(g) bar (relative) psi(a)
  • Page 137 B Units of measurement FLUXUS WW volumetric flow rate volume (totalized) unit of measurement description unit of measurement m3/d cubic meter per day m3/h cubic meter per hour m3/min cubic meter per minute m3/s cubic meter per second km3/h cubic kilometer meter per hour...
  • Page 138 FLUXUS WW B Units of measurement mass flow rate mass (totalized) unit of measurement description unit of measurement metric ton per hour metric ton per day kg/h kilogram per hour kg/min kilogram per minute kg/s kilogram per second gram per second...
  • Page 139 B Units of measurement FLUXUS WW Flow nomogram (metrical) volumetric flow rate volumetric flow rate V o l u m e n f l u s s V o l u m e n f l u s s 1 0 0...
  • Page 140 FLUXUS WW B Units of measurement Flow nomogram (imperial) volumetric flow rate volumetric flow rate V o l u m e n f l u s s V o l u m e n f l u s s 1 0 0...

  • Page 141: C Reference

    The following tables provide assistance for the user. The accuracy of the data depends on the composition, temperature and processing of the material. FLEXIM does not assume liability for any inaccuracies. Sound speed of selected pipe and lining materials at 20 °C The values of some of these materials are stored in the internal database of the transmitter.
  • Page 142 FLUXUS WW C Reference Typical roughness values of pipes The values are based on experience and measurements. material absolute roughness [mm] drawn pipes of non-ferrous metal, glass, plastics and light metal 0…0.0015 drawn steel pipes 0.01…0.05 fine-planed, polished surface max. 0.01 planed surface 0.01…0.04...
  • Page 143 C Reference FLUXUS WW Properties of water at 1 bar and at saturation pressure density  fluid temperature fluid pressure sound speed specific heat [°C] [bar] [m/s] [kg/m ] capacity* [kJ/kg/K 1,013 1 402.9 999.8 4,219 1,013 1 447.3 999.7...

  • Page 144: D Conformity Declarations

    FLUXUS WW D Conformity declarations Conformity declarations UMFLUXUS_WWV1-1EN, 2018-02-28...

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