Flexim FLUXUS F401 Operating Instruction
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Flexim FLUXUS F401 Operating Instruction

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FLUXUS F401
UMFLUXUS_F401V2-1EN

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  • Page 1 Operating instruction FLUXUS F401 UMFLUXUS_F401V2-1EN...
  • Page 2 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.com www.flexim.com Operating instruction for FLUXUS F401 UMFLUXUS_F401V2-1EN, 2020-06-12 Article number: 21661 Copyright (©) FLEXIM GmbH 2020...

  • Page 3: Table Of Contents

    FLUXUS F401 Table of contents Table of contents Introduction ........... 7 Safety instructions .
  • Page 4 Table of contents FLUXUS F401 Start-up ............45 Start-up settings .
  • Page 5 FLUXUS F401 Table of contents Data logger ..........87 14.1...
  • Page 6 Table of contents FLUXUS F401 SuperUser mode ..........120 17.1...

  • Page 7: Introduction

    1 Introduction FLUXUS F401 Introduction This operating instruction has been written for users operating the ultrasonic flowmeter FLUXUS. It contains important information about the measuring equipment, how to han- dle it correctly, and how to avoid damages. Read the safety instructions carefully. Make sure you have read and understood this operating instruction before using the measuring equipment.
  • Page 8 Copyright The contents of this operating instruction are subject to changes without prior notice. All rights reserved. No part of this operating instruction may be reproduced in any form with- out FLEXIM's written permission. 2020-06-12, UMFLUXUS_F401V2-1EN...

  • Page 9: Safety Instructions

    Failure to comply with the instructions, in particular with the safety instructions, poses a risk to health and can lead to material damages. For further information, contact FLEXIM. During installation and operation of the measuring equipment, observe the ambient and installation conditions specified in the documentation.

  • Page 10: 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. For further information, contact FLEXIM.

  • Page 11: Safety Instructions For Electrical Work

    • The transmitter and the power supply unit must not be disassembled, see Fig. 2.1. The transmitter does not contain any components to be maintained by the user. For repair and service work, please contact FLEXIM. • Observe the safety and accident prevention regulations for electrical systems and equipment.

  • Page 12: Safety Instructions For Transport

    • The transmitter, transducers and accessories have to be properly packed for transport: – Use, if possible, the original packaging by FLEXIM or an equivalent cardboard box. – Position the transmitter, transducers and accessories in the middle of the cardboard box.

  • Page 13: General Principles

    3 General principles FLUXUS F401 3.1 Measurement principle General principles In the ultrasonic flow measurement, the flow velocity of the fluid in a pipe is determined. Further physical quantities are derived from the flow velocity and from additional physical quantities, if necessary.
  • Page 14 3 General principles 3.1 Measurement principle FLUXUS F401 Acoustic calibration factor k  ----------- -  The acoustic calibration factor k is a transducer parameter which results from the sound speed c within the transducer and the angle of incidence. According to Snell's law of re- fraction, the angle of propagation in the adjoining fluid or pipe material is: ...
  • Page 15 3 General principles FLUXUS F401 3.1 Measurement principle 3.1.2 Measurement of the flow velocity in the TransitTime mode The signals are emitted and received by 2 transducers alternatively in and against the flow direction. If the fluid is flowing, the signals propagating in the fluid are displaced with the flow.
  • Page 16 3 General principles 3.1 Measurement principle FLUXUS F401 Fig. 3.2: Sound path of the signal against the flow direction increase of the sound path α α α β β sound path γ without flow γ sound path with flow flow direction of the fluid c –...
  • Page 17 3 General principles FLUXUS F401 3.1 Measurement principle 3.1.3 Measurement of the flow velocity in the NoiseTrek parallel beam mode Pipes with a small pipe diameter or fluids which strongly attenuate the ultrasonic signal can cause a reduction of the transit time in the fluid with the result that the signal quality is no longer sufficient.

  • Page 18: Measurement Arrangements

    3 General principles 3.2 Measurement arrangements FLUXUS F401 The average flow velocity of the fluid is calculated as follows: t --------------- - v = k · k · 2 t  where – average flow velocity of the fluid – fluid mechanics calibration factor –...
  • Page 19 3 General principles FLUXUS F401 3.2 Measurement arrangements Beam The path covered by the ultrasonic signal between the transducers, i.e., the transducer emitting the ultrasonic signal and the transducer receiving it. One beam consists of 1 or several sound paths.
  • Page 20 3 General principles 3.2 Measurement arrangements FLUXUS F401 Sound beam plane plane, containing sound paths or beams Fig. 3.8: 2 sound paths in 1 plane 3.2.2 Examples Diagonal arrangement with 1 beam Reflection arrangement with 1 beam 1 transducer pair...

  • Page 21: Acoustic Penetration

    3 General principles FLUXUS F401 3.3 Acoustic penetration Acoustic penetration The pipe has to be acoustically penetrable at the measuring point. The acoustic penetra- tion is given when pipe and fluid do not attenuate the sound signal so strongly that it is completely absorbed before reaching the second transducer.
  • Page 22 3 General principles 3.3 Acoustic penetration FLUXUS F401 Vertical pipe Select the measuring point at a pipe location where the fluid flows upward. The pipe has to be completely filled, see Fig. 3.11 and Fig. 3.12. Fig. 3.11: Recommended transducer Fig.

  • Page 23: Undisturbed Flow Profile

    3 General principles FLUXUS F401 3.4 Undisturbed flow profile Undisturbed flow profile Some flow elements (e.g., elbows, valves, pumps, reducers) distort the flow profile in their vicinity. The axisymmetrical flow profile in the pipe needed for correct measurement is no longer given. A careful selection of the measuring point helps to reduce the impact of disturbance sources.
  • Page 24 3 General principles 3.4 Undisturbed flow profile FLUXUS F401 Tab. 3.1: Recommended distance from disturbance sources D – nominal pipe diameter at the measuring point l – recommended distance between disturbance source and transducer position disturbance source: valve inlet: l ≥ 40 D outlet: l ≥...

  • Page 25: Product Description

    4 Product description FLUXUS F401 4.1 Measuring system Product description Measuring system The measurement system consists of a transmitter, the ultrasonic transducers and the pipe on which the measurement is carried out, see Fig. 4.1. Fig. 4.1: Example for a measurement arrangement 1 –...
  • Page 26 4 Product description 4.2 Handling concept FLUXUS F401 Fig. 4.2: Command panel of the transmitter >PAR< mea opt sf Parameter 1 – display 2 – keyboard 3 – status indicator "charge state" 4 – status indicator "power supply" For a description of the individual program branches, see Tab. 4.1.

  • Page 27: Navigation

    4 Product description FLUXUS F401 4.3 Navigation Navigation 4.3.1 Scroll lists If a vertical arrow ↕ is displayed, the menu item contains a scroll list. The current list item is displayed in the lower line. Special Funct. ↕ SYSTEM settings •...

  • Page 28: Keyboard

    4 Product description 4.4 Keyboard FLUXUS F401 4.3.3 Status indications The status indicators only light if the transmitter is switched on and the display light is activated. Tab. 4.2: Status indicator "power supply" LED flashes green transmitter is connected to the power supply; battery is charging...
  • Page 29 4 Product description FLUXUS F401 4.4 Keyboard Tab. 4.5: Navigation scroll to the right or up through a scroll list scroll to the left or down through a scroll list Tab. 4.6: Input of numbers move the cursor to the right...

  • Page 30: Transport And Storage

    5 Transport and storage 5.1 Transport FLUXUS F401 Transport and storage Caution! When packaging, the transmitter can fall down. There is a danger of crushing body parts or damaging the measuring equipment. → Secure the transmitter against falling during packaging. Wear the required personal protective equipment.

  • Page 31: Installation

    6 Installation FLUXUS F401 6.1 Transmitter Installation Caution! Touching hot or cold surfaces This may result in injuries (e.g., thermal damages). → Observe the ambient conditions at the measuring point during installa- tion. Wear the required personal protective equipment. Observe the applicable rules.

  • Page 32: Transducers

    6 Installation 6.2 Transducers FLUXUS F401 Fig. 6.2: Connections on the transmitter 1 – output 2 – transducers 3 – power supply Transducers 6.2.1 Preparation 6.2.1.1 Measuring point selection The correct selection of the measuring point is crucial for achieving reliable measure- ment results and a high measurement accuracy.
  • Page 33 6 Installation FLUXUS F401 6.2 Transducers • Avoid measuring points in the vicinity of distorted or defective areas of the pipe or in the vicinity of welds. • Avoid measuring points with deposit formation in the pipe. • Make sure the pipe surface at the selected measuring point is even.
  • Page 34 6 Installation 6.2 Transducers FLUXUS F401 6.2.1.3 Selection of the measurement arrangement Diagonal arrangement with 1 beam Reflection arrangement with 1 beam • wider flow velocity and sound speed • smaller flow velocity and sound speed range compared to the reflection ar-...
  • Page 35 6 Installation FLUXUS F401 6.2 Transducers Bidirectional measurements flow direction • The sound beam plane is selected ac- cording to the nearest elbow (horizontal or vertical, depending on the pipe orien- tation, see above). 6.2.2 Installation of the transducers 6.2.2.1...
  • Page 36 6 Installation 6.2 Transducers FLUXUS F401 6.2.2.2 Mounting of the transducers with transducer clamping fixture and ladder chains • Insert the transducer into the transducer clamping fixture until it snaps. • Fix the chain to the hook of the transducer clamping fixture.
  • Page 37 6 Installation FLUXUS F401 6.2 Transducers 6.2.2.3 Mounting of the transducers with transducer shoes and ball chains • Insert the transducer into the transducer shoe. Turn the screw on top of the fastening shoe by 90° to engage and lock its end in the groove on top of the inserted transducer.
  • Page 38 6 Installation 6.2 Transducers FLUXUS F401 6.2.2.4 Mounting of the transducers with transducer shoes and ladder chains • Adjust the transducer distance on the ruler before installation of the transducer shoes. • Place the transducer shoes on the pipe. • Loosen the knurled screw.

  • Page 39: Connection

    7 Connection FLUXUS F401 7.1 Transducers Connection The connections of the outputs, transducers and the power supply unit are located on the rear side of the transmitter, see Fig. 7.1. Fig. 7.1: Connections on the transmitter 1 – outputs 2 – transducers 3 –...

  • Page 40: Power Supply

    7 Connection 7.2 Power supply FLUXUS F401 Fig. 7.2: Transducer connector pulling direction 1 – protective cap with marking 2 – knurled ring 3 – marking on the transmitter socket 4 – marking on the connector Removal • Pull the knurled ring slightly back and remove the connector from the transmitter socket.
  • Page 41 7 Connection FLUXUS F401 7.2 Power supply Charging the battery Connect the power supply to the transmitter, see section 7.2.2. Switch on the transmitter. The charging starts automatically. The green LED flashes. The max. charging time is approx. 8 h.

  • Page 42: Outputs

    7 Connection 7.3 Outputs FLUXUS F401 Removal • Push the connector firmly toward the transmitter. Turn the knurled ring to the left and re- move the connector from the transmitter socket. • Screw the protective cap on the socket. Turn protective cap to the right in order to fix it.
  • Page 43 7 Connection FLUXUS F401 7.3 Outputs Tab. 7.1: Circuit of the outputs output transmitter external circuit remark internal connection circuit binary circuit 1 = 32 V output ≤ 200 mA (opto- [kΩ] = U [mA] A(+) relay) B(-) circuit 2...

  • Page 44: Connection Of The Rs232 Service Interface

    7 Connection 7.4 Connection of the RS232 service interface FLUXUS F401 Output adapter (optional) Fig. 7.5: Output adapter 1 – binary output 2 – current output Connection • Remove the protective cap on the transmitter by turning it to the left.

  • Page 45: Start-Up

    8 Start-up FLUXUS F401 8.1 Start-up settings Start-up Start-up settings When starting up the transmitter for the first time, the following settings are required: • language • units of measurement • date/time These displays will only be indicated once when the transmitter is switched on for the first time.

  • Page 46: Switching On/Off

    8 Start-up 8.2 Switching on/off FLUXUS F401 Switching on/off Press key I/O to switch on the transmitter. As soon as the transmitter is switched on, the serial number of the transmitter is dis- played for a short time. It is not possible to enter any data while the serial number is dis- played.

  • Page 47: Hotcodes

    8 Start-up FLUXUS F401 8.4 HotCodes HotCodes A HotCode is a digit sequence that activates certain functions and settings. Special Funct.\SYSTEM settings\Miscellaneous • Select the menu item Miscellaneous in the program branch Special Funct.\ SYSTEM settings. • Press ENTER. Input a HOTCODE •...

  • Page 48: Language

    8 Start-up 8.5 Language FLUXUS F401 Language The language can be selected with the following HotCodes: language HotCode Dutch 909031 French 909033 Spanish 909034 English 909044 German 909049 When the last digit has been entered, the main menu is displayed in the selected lan- guage.

  • Page 49: Time And Date

    8 Start-up FLUXUS F401 8.7 Time and date Delete Meas.Val. • Select yes to delete the stored measured values or no to keep them. • Press ENTER. This display will only be indicated if measured values are stored in the transmitter.

  • Page 50: Instrument Information

    8 Start-up 8.8 Instrument information FLUXUS F401 Instrument information Special Funct.\Instrum. Inform. • Select the menu item Instrum. Inform. to get information about the transmitter. • Press ENTER. F401 -XXXXXXXX The type and the serial number of the transmitter are displayed in the upper line.

  • Page 51: Measurement

    9 Measurement FLUXUS F401 9.1 Parameter input Measurement Parameter input Notice! The parameters will only be stored when the program branch Parameter has been edited in its entirety. Parameter Outer Diameter Wall Thickness Pipe Material Lining Roughness Medium Temperat. Transducer Type see annex A, p.142...
  • Page 52 9 Measurement 9.1 Parameter input FLUXUS F401 9.1.1 Input of pipe parameters Outer pipe diameter/pipe circumference Parameter\Outer Diameter • Enter the outer pipe diameter. • Press ENTER. An error message will be displayed if the entered parameter is outside the range. The limit is displayed.
  • Page 53 9 Measurement FLUXUS F401 9.1 Parameter input Pipe material Parameter\Pipe Material The pipe material has to be selected to be able to determine the corresponding sound speed. The sound speeds for the materials in the scroll list are stored in the transmitter.
  • Page 54 9 Measurement 9.1 Parameter input FLUXUS F401 Sound speed of the lining material Parameter\Lining\Other Material\c-Material • Enter the sound speed of the lining material. • Press ENTER. Notice! For pipe materials there are 2 sound speeds, the longitudinal and the transversal one.
  • Page 55 9 Measurement FLUXUS F401 9.1 Parameter input 9.1.2 Input of fluid parameters Fluid temperature Parameter\Medium Temperat. At the beginning of the measurement, the fluid temperature is used for the interpolation of the sound speed and therefore for the calculation of the recommended transducer dis- tance.

  • Page 56: Measurement Settings

    9 Measurement 9.2 Measurement settings FLUXUS F401 Measurement settings 9.2.1 Selection of the physical quantity and the unit of measurement Output Options Physic. Quant. Unit Of Measure Damping see annex A, p.143 The following physical quantities can be measured: • sound speed •...
  • Page 57 9 Measurement FLUXUS F401 9.2 Measurement settings 9.2.2 Input of the damping factor Each displayed measured value is a floating average of all measured values of the last x seconds, with x being the damping factor. A damping factor of 1 s means that the mea- sured values are not averaged because the measuring rate is approx 1/s.
  • Page 58 9 Measurement 9.2 Measurement settings FLUXUS F401 Notice! The settings will be stored at the end of the dialog. If the menu item is quit by press- ing key BRK, the changes will not be stored. Special Funct.\SYSTEM settings\Proc. outputs •...
  • Page 59 9 Measurement FLUXUS F401 9.2 Measurement settings The source items and their scroll lists are summarized in the Tab. 9.1. Tab. 9.1: Configuration of the outputs source item list item output Measuring value physical quantity selected in the program branch...
  • Page 60 9 Measurement 9.2 Measurement settings FLUXUS F401 Output range When configuring an analog output, the output range has to be defined. Special Funct.\SYSTEM settings\Proc. outputs\...\Output range I1 • Select Special Funct.\SYSTEM settings\Proc. outputs\...\Output range I1. • Press ENTER. • Select a list item.
  • Page 61 9 Measurement FLUXUS F401 9.2 Measurement settings Tab. 9.2: Error output error value result Minimum the lower limit of the output range is output Hold last value the last measured value is output Maximum the upper limit of the output range is output Other value...
  • Page 62 9 Measurement 9.2 Measurement settings FLUXUS F401 Tab. 9.3: Examples for the error output (output range: 4...20 mA) list item output signal Hold last value I [mA] Maximum (20.0 mA) I [mA] Other value... I [mA] error value = 3.5 mA...
  • Page 63 9 Measurement FLUXUS F401 9.2 Measurement settings Terminal assignment Special Funct.\SYSTEM settings\Proc. outputs\...\Active loop I1 The terminals for the connection of the output are displayed. • Press ENTER. If the transmitter possesses a switchable current output, it is displayed whether it is ac- tive or passive (here: active).
  • Page 64 9 Measurement 9.2 Measurement settings FLUXUS F401 9.2.4 Activation of an analog output Output Options ENTER until Current Loop Meas.Values Zero-Scale Val. Full-Scale Val. Test output Error-val. delay see annex A, p.146 Notice! An output can only be activated in the program branch Output Options if it has previously been installed.
  • Page 65 9 Measurement FLUXUS F401 9.2 Measurement settings Output Options\...\Zero-Scale Val. • Enter the lowest expected measured value. The unit of measurement of the source item will be displayed. Zero-Scale Val. is the value assigned to the value Output MIN of the output range.
  • Page 66 9 Measurement 9.2 Measurement settings FLUXUS F401 Output Options\...\I1:Test output? • Select yes to repeat the test. • Press ENTER. Example output: current output output range: 4…20 mA Zero-Scale Val.: 0 m³/h Full-Scale Val.: 300 m³/h Test value = 150 m³/h (center of the measuring range, corresponds to 12 mA) If the multimeter displays 12 mA, the current output functions correctly.

  • Page 67: Start Of The Measurement

    9 Measurement FLUXUS F401 9.3 Start of the measurement Start of the measurement Measuring Meas.Point No. Sound Path Transd. Distance Signal test Transd. Distance Measurement display see annex A, p.145 • Select the program branch Measuring. • Press ENTER. If the parameters in the program branch Parameter are not valid or incomplete, the er- ror message NO DATA! will be displayed.
  • Page 68 9 Measurement 9.3 Start of the measurement FLUXUS F401 Input of the sound path number Measuring\Channel\...\Sound Path A value for the number of sound paths corresponding to the connected transducers and the entered parameters is recommended. • Change the value, if necessary.
  • Page 69 9 Measurement FLUXUS F401 9.3 Start of the measurement Adjustment of the transducer distance Measuring\...\Transd. Distance The recommended transducer distance will be displayed. • Mount the transducers on the pipe adjusting the transducer distance. • Press ENTER. Reflec – reflection arrangement Diagon –...
  • Page 70 9 Measurement 9.3 Start of the measurement FLUXUS F401 Fig. 9.2: Diagnostics window S=■■■■■■ Q:■■■■■■■■■■■■ time= 94.0 µs Q:■■■■■■■■■■■ In case of large deviations, check if the entered parameters are correct or repeat the measurement at a different point on the pipe.

  • Page 71: Display Of Measured Values

    9 Measurement FLUXUS F401 9.4 Display of measured values • If the difference is greater, adjust the transducer distance to the displayed optimum value. • Afterwards, check the signal quality and the signal amplitude bar graph. • Press ENTER. Tab. 9.4:...
  • Page 72 9 Measurement 9.4 Display of measured values FLUXUS F401 9.4.1 Adjustment of the display During the measurement, the display can be adapted in order to display 2 measured val- ues at the same time (one in each line of the display). This does not affect totalizing, stor- ing of measured values, transmission of measured values, etc.
  • Page 73 9 Measurement FLUXUS F401 9.4 Display of measured values Status line Important information of the running measurement is summarized in the status line. Quality and precision of the running measurement can be evaluated accordingly. Press key during the measurement to scroll through the upper line to the status line.
  • Page 74 9 Measurement 9.4 Display of measured values FLUXUS F401 Tab. 9.5: Description of the status line value explanation flow velocity comparison of the measured flow velocity with the flow limits of the system √ OK, the flow velocity is not within the critical range ↑...

  • Page 75: Execution Of Special Functions

    9 Measurement FLUXUS F401 9.5 Execution of special functions Execution of special functions Commands that can be executed during a measurement are displayed in the upper line. A command begins with →. If programmed, a program code has to be entered first.

  • Page 76: Troubleshooting

    Check that the battery is inserted and charged. Connect the power supply unit. If the power supply is OK, the transducers or an internal component of the transmitter are de- fective. The transducers and the transmitter have to be sent to FLEXIM for repair. The message "SYSTEM ERROR" is displayed Press key BRK to return to the main menu.

  • Page 77: Problems With The Measurement

    10 Troubleshooting FLUXUS F401 10.1 Problems with the measurement 10.1 Problems with the measurement A measurement is not possible because no signal is received. A question mark is displayed after the physical quantity. • Check whether the entered parameters are correct, especially the outer pipe diameter, the pipe wall thickness and the sound speed of the fluid.

  • Page 78: Measuring Point Selection

    10 Troubleshooting 10.2 Measuring point selection FLUXUS F401 10.2 Measuring point selection • Make sure that the recommended min. distance to any disturbance source is observed. • Avoid measuring points with deposit formation in the pipe. • Avoid measuring points in the vicinity of deformations and defects on the pipe as well as welds.

  • Page 79: Significant Deviations Of The Measured Values

    10 Troubleshooting FLUXUS F401 10.5 Significant deviations of the measured values A high concentration of gases or solids in the fluid scatter and absorb the ultrasonic signal and thus attenuate the measuring signal A measurement is impossible if the value is ≥ 10 %. If the proportion is high, but < 10 %, a measurement is only conditionally possible.

  • Page 80: Problems With The Totalizers

    10 Troubleshooting 10.6 Problems with the totalizers FLUXUS F401 10.6 Problems with the totalizers The values of the totalizers are too high See Special Funct.\SYSTEM settings\Measuring\Quantity recall. If this menu item is activated, the values of the totalizer will be stored. The totalizer will continue with this value at the start of the next measurement.

  • Page 81: Maintenance And Cleaning

    11 Maintenance and cleaning FLUXUS F401 11.1 Maintenance Maintenance and cleaning Caution! Touching hot or cold surfaces This may result in injuries (e.g., thermal damages). → Observe the ambient conditions at the measuring point during installa- tion. Wear the required personal protective equipment. Observe the applicable rules.

  • Page 82: Dismounting And Disposal

    Disposal The measuring equipment has to be disposed in accordance to the applicable regula- tions. Depending on the material, the corresponding parts have to be disposed in residual or special waste or recycled. For further information, contact FLEXIM. 2020-06-12, UMFLUXUS_F401V2-1EN...

  • Page 83: Outputs

    13 Outputs FLUXUS F401 13.1 Installation of a binary output Outputs 13.1 Installation of a binary output If the transmitter is equipped with binary outputs, they have to be installed and activated before they can be used: • assignment of the physical quantity (source item) to be transmitted to the output by the source channel, and the properties of the signal •...
  • Page 84 13 Outputs 13.1 Installation of a binary output FLUXUS F401 Assignment of a source item One source item has to be assigned to each selected output. Special Funct.\SYSTEM settings\Proc. outputs\...\Source item • Select the physical quantity (source item) to be transmitted to the binary output by the source channel.

  • Page 85: Activation Of A Binary Output As Pulse Output

    13 Outputs FLUXUS F401 13.2 Activation of a binary output as pulse output Special Funct.\SYSTEM settings\Proc. outputs\...\B1 Output Test\ Opto-Relay ON • Select Opto-Relay ON in the scroll list Output Test to test the energized state of the output. • Press ENTER. Measure the resistance at the output. The value has to be low ohmic.
  • Page 86 13 Outputs 13.2 Activation of a binary output as pulse output FLUXUS F401 Output Options\...\Pulse Output\Pulse Value • Enter the pulse value. The unit of measurement will be displayed according to the actu- al physical quantity. When the counted physical quantity reaches the entered pulse value, a pulse will be transmitted.

  • Page 87: Data Logger

    14 Data logger FLUXUS F401 14.1 Activation/Deactivation of the data logger Data logger The transmitter has a data logger which stores the data during the measurement. The following data can be stored: • date • time • measuring point number •...

  • Page 88: Configuration Of The Data Logger

    14 Data logger 14.3 Configuration of the data logger FLUXUS F401 Output Options\...\Storage Rate\EXTRA • Enter the storage rate if EXTRA was selected. • Press ENTER. 14.3 Configuration of the data logger Special Funct.\SYSTEM settings\Storing • Select Special Funct.\SYSTEM settings\Storing.
  • Page 89 14 Data logger FLUXUS F401 14.3 Configuration of the data logger Ringbuffer The setting of the ringbuffer influences the storing of measured values as soon as the data logger is full: • If the ringbuffer is activated, the available data logger will be halved. The oldest mea- sured values will be overwritten.
  • Page 90 14 Data logger 14.3 Configuration of the data logger FLUXUS F401 Totalizer storing It is possible to store the currently displayed totalizer only or to store one value for each flow direction. Special Funct.\SYSTEM settings\Storing\Quantity Storage • Select one to store the currently displayed totalizer value only. This can apply for the positive and negative totalizer.

  • Page 91: Measurement With Activated Data Logger

    14 Data logger FLUXUS F401 14.4 Measurement with activated data logger 14.4 Measurement with activated data logger Measuring\Channel\Meas.Point No.: • Start the measurement. • Enter the number of the measuring point. • Press ENTER. If Output Options\Store Meas.Data is activated and Special Funct.\SYSTEM settings\Ringbuffer is deactivated, a message indicating an error will be displayed as soon as the data logger is full.

  • Page 92: Information Relating The Data Logger

    14 Data logger 14.6 Information relating the data logger FLUXUS F401 14.6 Information relating the data logger Aprox. 100 000 measurement data can be stored. Each measured value is stored with the corresponding totalizer and optionally further measurement and diagnostic data, see section 14.3.

  • Page 93: Data Transmission

    15 Data transmission FLUXUS F401 15.1 FluxDiagReader/FluxDiag Data transmission The data can be transmitted to the transmitter via the service interface RS232. Tab. 15.1: Data transmission overview program data transmission FluxDiagReader offline section 15.1 FluxDiag (optional) online or offline section 15.1...
  • Page 94 15 Data transmission 15.2 Terminal program FLUXUS F401 Output Options\...\Serial Output\SEND ONLINE-HEAD • Enter the storage rate. • Start the measurement. 15.2.2 Offline transmission Notice! During the offline transmission only those data is transmitted that is stored in the transmitter.

  • Page 95: Transmission Parameters

    15 Data transmission FLUXUS F401 15.3 Transmission parameters SERIAL ERROR Print Meas.Val. • Press ENTER. • Check the connections and make sure the PC is ready to receive data. 15.3 Transmission parameters • the transmitter sends CRLF-terminated ASCII • max. line length: 255 digits...

  • Page 96: Data Format

    15 Data transmission 15.4 Data format FLUXUS F401 15.4 Data format Special Funct.\SYSTEM settings\serial transmis.\SER:kill spaces • Select Special Funct.\SYSTEM settings\serial transmis. • Press ENTER until SER:kill spaces is displayed. • Select on if the space characters are not to be transmitted.
  • Page 97 15 Data transmission FLUXUS F401 15.5 Data structure Example \DEVICE : F401 -XXXXXXXX \MODE : ONLINE DATE : 2018-01-09 TIME : 19:56:52 Par.Record Meas.Point No.: : A:F5050 Pipe Outer Diameter : 60.3 mm Wall Thickness : 5.5 mm Roughness : 0.1 mm...
  • Page 98 15 Data transmission 15.5 Data structure FLUXUS F401 Example With a storage interval of 1 s, 10 lines with "???" will be transmitted if the measure- ment has been restarted after a 10 s interruption for the positioning of the transducers.

  • Page 99: Advanced Functions

    16 Advanced functions FLUXUS F401 16.1 Low-power mode Advanced functions 16.1 Low-power mode The low-power mode serves to prolong the battery life of the transmitter. If the low-power mode is activated, the transmitter switches off for a certain time (resting phase) after each measurement.
  • Page 100 16 Advanced functions 16.1 Low-power mode FLUXUS F401 Storage Rate ↕ 10 minutes • Select a storage rate. • Press ENTER. This display will only be indicated if Low-power mode is activated. 16.1.3 Start of the measurement Notice! In order to start a measurement, the parameter input has to be completed.

  • Page 101: Night-Flow Mode

    16 Advanced functions FLUXUS F401 16.2 Night-flow mode 16.1.4 Intervention in the measurement • Press key I/O. The measuring phase is started. The charge state of the battery is displayed. If no further key is pressed during the measuring time, the low-power mode will be contin- ued with the resting phase.
  • Page 102 16 Advanced functions 16.2 Night-flow mode FLUXUS F401 16.2.2 Settings in the night-flow mode Configure the data logger, see chapter 14, in such way that it does not reach its capacity limits during the planned measurement duration. Example If only the volumetric flow rate and one totalizer is stored, approx. 40 000 measure- ment data can be stored.
  • Page 103 16 Advanced functions FLUXUS F401 16.2 Night-flow mode Meas. duration ↕ 1 hour • Select the duration of the measurement (time of measurement). • Press ENTER until the menu item See you later is displayed. The max. measuring time is 12 h.

  • Page 104: Totalizers

    16 Advanced functions 16.3 Totalizers FLUXUS F401 Stop of the measurement • Press key I/O. The following display appears: >Goodbye in 30 s m3/h • Press key BRK to deactivate the night-flow mode. If no key is pressed, the transmitter changes over to the resting phase after completing 30 s.
  • Page 105 16 Advanced functions FLUXUS F401 16.3 Totalizers The totalizer value will be displayed in the upper line (here: the volume which has passed the measuring point in positive flow direction since the activation of the totalizers). • Press ENTER while a totalizer is displayed to toggle between the display of the totalizers for both flow directions.

  • Page 106: Noisetrek Parallel Beam Mode

    16 Advanced functions 16.4 NoiseTrek parallel beam mode FLUXUS F401 Totalizer overflow The overflow behavior of the totalizers can be set: Special Funct.\SYSTEM settings\Measuring\Quant. wrapping • Select Special Funct.\SYSTEM settings\Measuring\Quant. wrapping. • Select on to work with overflow. The flow totalizer will be reset to zero automatically when ±9999999999 is reached.

  • Page 107: Upper Limit Of The Flow Velocity

    16 Advanced functions FLUXUS F401 16.5 Upper limit of the flow velocity 16.5 Upper limit of the flow velocity Single outliers caused by heavily disturbed surroundings can appear among the mea- sured values of the flow velocity. If these outliers are not ignored, they will affect all de- rived physical quantities, which will be unsuitable for the integration (e.g., pulse outputs).

  • Page 108: Cut-Off Flow

    16 Advanced functions 16.6 Cut-off flow FLUXUS F401 16.6 Cut-off flow The cut-off flow is a lower limit for the flow velocity. All measured flow velocities that are lower than the limit and their derived quantities are set to zero.

  • Page 109: Profile Correction

    16 Advanced functions FLUXUS F401 16.7 Profile correction 16.7 Profile correction The following settings can be made for the calculation of the fluid mechanics calibration factor k • off: profile correction 1.0 • on: profile correction 2.0 at ideal inflow conditions (default) •...

  • Page 110: Uncorrected Flow Velocity

    16 Advanced functions 16.8 Uncorrected flow velocity FLUXUS F401 16.8 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\Flow Velocity. Special Funct.\SYSTEM settings\Measuring\Flow Velocity •...

  • Page 111: Diagnosis With The Help Of The Snap Function

    16 Advanced functions FLUXUS F401 16.9 Diagnosis with the help of the snap function Flow Velocity 54.5 Press key to scroll until the flow velocity is displayed. The uncorrected flow velocity is marked with an "U". Uncorrected flow velocities transmitted to a PC are marked with uncorr.

  • Page 112: Activation Of A Binary Output As Alarm Output

    16 Advanced functions 16.10 Activation of a binary output as alarm output FLUXUS F401 Special Funct.\...\DSP-SignalSnap\Snap ringbuffer • Activate or deactivate the snap ringbuffer. • Press ENTER. Delete snaps Special Funct.\SYSTEM settings\Signal snap\DSP-SignalSnap\ Clear Snaps • Select Clear Snaps. • Press ENTER.
  • Page 113 16 Advanced functions FLUXUS F401 16.10 Activation of a binary output as alarm output 16.10.1 Alarm properties The switching condition, the holding behavior and the switching function of an alarm output can be defined. R1=FUNC<typ mode Function: The following 3 scroll lists are displayed: •...
  • Page 114 16 Advanced functions 16.10 Activation of a binary output as alarm output FLUXUS F401 Notice! If no measurement is made, all alarms will be de-energized, independently of the programmed switching function. 16.10.2 Setting the limits If the switching condition MIN or MAX is selected in the scroll list func, the limit of the output...
  • Page 115 16 Advanced functions FLUXUS F401 16.10 Activation of a binary output as alarm output Example Low Limit: -10 kg/h mass flow rate = -11 kg/h the measured value is below the limit, the alarm switches mass flow rate = -9.9 kg/h the measured value is not below the limit, the alarm does not switch If the switching condition QUANT.

  • Page 116: Behavior Of The Alarm Outputs

    16 Advanced functions 16.11 Behavior of the alarm outputs FLUXUS F401 16.10.3 Defining the hysteresis A hysteresis can be defined for the alarm output R1. This prevents a constant triggering of the alarm when measured values fluctuate marginally around the limit.
  • Page 117 16 Advanced functions FLUXUS F401 16.11 Behavior of the alarm outputs Press 3 times key C during the measurement to set all alarm outputs to idle state. Alarm outputs whose switching condition is still met will be activated again after 1 s. This func- tion is used to reset alarm outputs of the type HOLD if the switching condition is no longer met.
  • Page 118 16 Advanced functions 16.11 Behavior of the alarm outputs FLUXUS F401 Fig. 16.2: Behavior of a relay when the flow direction changes flow flow type NON-HOLD type HOLD approx. 1 s reset of the alarm (3 times key C) When adjusting to changed measurement conditions e.g, a substantial increase of the fluid temperature, the alarm will not be switched.
  • Page 119 16 Advanced functions FLUXUS F401 16.11 Behavior of the alarm outputs If the alarm output indication is activated, the alarm state can be displayed during the measurement. Press key to scroll through the upper line or key in the lower line until the alarm state is displayed.

  • Page 120: Superuser Mode

    17 SuperUser mode 17.1 Activation/deactivation FLUXUS F401 SuperUser mode The SuperUser mode offers the possibility of an advanced diagnostic of signals and measured values as well as the definition of additional parameters adapted to the mea- suring point, in order to achieve better measured values or for experimental work. Spe- cial features of the SuperUser mode are: •...

  • Page 121: Defining Flow Parameters

    17 SuperUser mode FLUXUS F401 17.2 Defining flow parameters 17.2 Defining flow parameters In the SuperUser mode, it is possible to define some flow parameters (profile bounds, correction of the flow velocity) for the specific application or measuring point. Special Funct.\SYSTEM settings\Measuring\Calibration •...
  • Page 122 17 SuperUser mode 17.2 Defining flow parameters FLUXUS F401 Example profile bound for laminar flow: 1500 profile bound for turbulent flow: 2500 At Reynolds numbers < 1500, the flow is regarded as laminar for the calculation of the physical quantity. At Reynolds numbers > 2500, the flow is regarded as turbulent. The range 1500...2500 is the transition range between laminar and turbulent flow.
  • Page 123 17 SuperUser mode FLUXUS F401 17.2 Defining flow parameters • Press ENTER. Special Funct.\...\Calibration\...\Calibration\Offset • Enter the offset. Enter zero to work without offset. • Press ENTER. Example 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 corrected as follows: = 1.1 ·...

  • Page 124: Setting Of The Measuring Time In The Low-Power Mode

    17 SuperUser mode 17.3 Setting of the measuring time in the low-power mode FLUXUS F401 17.3 Setting of the measuring time in the low-power mode The measured values are determined during the measuring time. The current value will be stored in the data logger the end of the measuring time.

  • Page 125: Limit Of The Signal Amplification

    17 SuperUser mode FLUXUS F401 17.5 Limit of the signal amplification This display will only be indicated if no is selected in the menu item Daily repeat. Start of measure 02:00 • Enter the starting time. • Press ENTER. This display will only be indicated if setup is selected.

  • Page 126: Upper Limit Of The Sound Speed

    17 SuperUser mode 17.6 Upper limit of the sound speed FLUXUS F401 Special Funct.\SYSTEM settings\Measuring\Miscellaneous\ Gain threshold\Fail if > 90 dB • Enter for each measuring channel the max. signal amplification. • Enter zero to measure without a limit of the signal amplification.
  • Page 127 17 SuperUser mode FLUXUS F401 17.6 Upper limit of the sound speed Special Funct.\SYSTEM settings\Measuring\Miscellaneous\Bad soundspeed\offset • Enter for each measuring channel the offset. • Enter zero to use the default value of 300 m/s. • Press ENTER. Example fixed upper value of the sound speed (thresh.): 2007 m/s...

  • Page 128: Detection Of Long Measurement Failures

    17 SuperUser mode 17.7 Detection of long measurement failures FLUXUS F401 17.7 Detection of long measurement failures If there are no valid measured values during a long time interval, new increments of the totalizers will be ignored. The values of the totalizers remain unchanged.

  • Page 129: Manual Reset Of The Totalizers

    17 SuperUser mode FLUXUS F401 17.9 Manual reset of the totalizers Total digits = Fixed to x digit The number of decimal points is constant. The max value of the totalizer is reduced with the number of decimal places. decimal places max.

  • Page 130: Display Of The Totalizer Sum

    17 SuperUser mode 17.10 Display of the totalizer sum FLUXUS F401 17.10 Display of the totalizer sum The totalizer sum of both flow directions can be displayed in the upper line during the measurement. Special Funct.\SYSTEM settings\Measuring\Miscellaneous\Show ΣQ • Select Special Funct.\SYSTEM settings\Measuring\Miscellaneous.

  • Page 131: Displays During The Measurement

    17 SuperUser mode FLUXUS F401 17.12 Displays during the measurement 17.12 Displays during the measurement Besides the normal information, see section 9.4, the following parameters can be dis- played during the measurement in the SuperUser mode: display explanation transit time of the measuring signal in the fluid...

  • Page 132: Settings

    18 Settings 18.1 Dialogs and menus FLUXUS F401 Settings 18.1 Dialogs and menus Special Funct.\SYSTEM settings\Dialogs/Menus • Select Special Funct.\SYSTEM settings\Dialogs/Menus. • Press ENTER. Notice! The settings will be stored at the end of the dialog. If the menu item is quit by press- ing key BRK, the changes will not be stored.
  • Page 133 18 Settings FLUXUS F401 18.1 Dialogs and menus Notice! 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. Example entered pipe circumference: 100 mm displayed outer pipe diameter: 31.8 mm...
  • Page 134 18 Settings 18.1 Dialogs and menus FLUXUS F401 18.1.4 Error delay The error delay is the time interval after which the entered value for the error value is transmitted to the output in case no valid measured values are available.

  • Page 135: Measurement Settings

    18 Settings FLUXUS F401 18.2 Measurement settings 18.2 Measurement settings Special Funct.\SYSTEM settings\Measuring • Select Special Funct.\SYSTEM settings\Measuring. • Press ENTER. Notice! The settings will be stored at the end of the dialog. If the menu item is quit by press- ing key BRK, the changes will not be stored.
  • Page 136 18 Settings 18.2 Measurement settings FLUXUS F401 Special Funct.\...\Measuring\Velocity limit An upper limit for the flow velocity can be entered, see section 16.5. • Enter zero to deactivate the flow velocity check. • Press ENTER. Special Funct.\...\Measuring\Cut-off Flow A lower limit for the flow velocity can be entered.
  • Page 137 18 Settings FLUXUS F401 18.2 Measurement settings Special Funct.\...\Measuring\Quant. wrapping • Select the overflow behavior of the totalizers, see section 16.3. • Press ENTER. Special Funct.\...\Measuring\Quantity recall • Select on to keep the previous totalizer values after a restart of the measurement.

  • Page 138: Contrast Settings

    18 Settings 18.3 Contrast settings FLUXUS F401 18.3 Contrast settings Special Funct.\SYSTEM settings\Miscellaneous • Select Special Funct.\SYSTEM settings\Miscellaneous. • Press ENTER. Special Funct.\SYSTEM settings\Miscellaneous\SETUP DISPLAY • Select Special Funct.\SYSTEM settings\Miscellaneous to set the display contrast of the transmitter. The display contrast is adjusted with the following keys:...
  • Page 139 18 Settings FLUXUS F401 18.4 Program code An error message will be displayed if a reserved number has been entered (e.g., a HotCode for language selection). INVALID CODE ! 909049 A program code will remain valid as long as: • no other valid program code is entered or •...
  • Page 140 18 Settings 18.4 Program code FLUXUS F401 If a command is selected: In order to execute a command, it is sufficient to enter the first 3 digits of the program code (= Access Code). INP. ACCESS CODE CODE: 000000 • Enter the first 3 digits of the program code with the keys •...

  • Page 141: Annex

    Annex FLUXUS F401 A Menu structure Annex Menu structure Program branches Parameter Measuring Output Options Special Funct. Pipe parameters Measuring point number Physical quantity System settings Fluid parameter Number of sound paths Unit of measurement → Dialogs and menus → Measurement →...
  • Page 142 Annex A Menu structure FLUXUS F401 Parameter input (see chapter 9) Main menu Parameter Outer Diameter Wall Thickness Pipe Material Lining Lining Liner Thickness Roughness Disturb.distance Medium Medium Temperat. Transducer Type Special Version Standard → Transd. Data 1 … → Transd. Data 6...
  • Page 143 Annex FLUXUS F401 A Menu structure Measurement settings (see chapter 9) Main menu Output Options Physic. Quant. Unit of measurement Damping UMFLUXUS_F401V2-1EN, 2020-06-12...
  • Page 144 Annex A Menu structure FLUXUS F401 Data logger (see chapter 14) Main menu Main menu Special Funct. Output Options SYSTEM settings ENTER until Store Meas.Data Storing Ringbuffer Storage Rate Storage mode sample average Main menu Quantity Storage Special Funct. both Print Meas.Val.
  • Page 145 Annex FLUXUS F401 A Menu structure Measurement start (see chapter 9) Main menu Measuring Meas.Point No.: PROFILE CORR. [1], [2] Sound Path Transd. Distance Signal test Transd. Distance Measurement display Measurement stop Legend [1] this will only be displayed if uncorr. is selected in the menu item Special Funct.\SYSTEM settings\Measuring\Flow Velocity...
  • Page 146 Annex A Menu structure FLUXUS F401 Configuration of the outputs (see chapter 9) Main menu Main menu Special Funct. Output Options ENTER until SYSTEM settings Current Loop Proc. outputs Install Output Zero-Scale Val. → Current → Binary Full-Scale Val. enable...
  • Page 147 Annex FLUXUS F401 A Menu structure SuperUser mode (see chapter 17) Main menu Special Funct. SYSTEM settings Calibration Measuring Miscellaneous factory user ENTER until Laminar flow Gain threshold Turbulent flow Bad soundspeed Calibration → thresh. → offset ENTER until Slope Do not total.
  • Page 148 Annex A Menu structure FLUXUS F401 Alarm output (see chapter 16) Main menu Special Funct. SYSTEM settings Proc. outputs Install Output → Binary Main menu enable Source chan. Output Options Source item ENTER until → Limit Alarm Output func mode →...

  • Page 149: B Units Of Measurement

    Annex FLUXUS F401 B Units of measurement Units of measurement Length/roughness unit of measurement description millimeter inch inch Temperature unit of measurement description °C degree Celsius °F degree Fahrenheit Pressure unit of measurement description bar(a) bar (absolute) bar(g) bar (relative)
  • Page 150 Annex B Units of measurement FLUXUS F401 Kinematic viscosity unit of measurement description mm²/s square millimeter per second 1 mm²/s = 1 cSt Flow velocity unit of measurement description meter per second cm/s centimeter per second inch/s inch per second...
  • Page 151 Annex FLUXUS F401 B Units of measurement unit of measurement description volume (totalized) hl/min hectoliter per minute hl/s hectoliter per second Ml/d (megaliter/d) megaliter per day bbl/d barrel per day bbl/h barrel per hour bbl/m barrel per minute bbl/s barrel per second...
  • Page 152 Annex B Units of measurement FLUXUS F401 Mass flow rate unit of measurement description mass (totalized) ton per hour ton per day kg/h kilogram per hour kg/min kilogram per minute kg/s kilogram per second gram per second lb/d pound per day...

  • Page 153: C Reference

    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 as- sume 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 transmit- ter.
  • Page 154 Annex C Reference FLUXUS F401 material (display) explanation [m/s] [m/s] trans long flow perfluoralcoxy 1185 long PVDF polyvinylidene fluorid 2050 long Sintimid Sintimid 2472 long Teka PEEK Teka PEEK 2534 long Tekason Tekason 2230 long The sound speed depends on the composition and the manufacturing process of the ma- terial.
  • Page 155 Annex FLUXUS F401 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 0…0.0015 light metal drawn steel pipes 0.01…0.05 fine-planed, polished surface max.
  • Page 156 Annex C Reference FLUXUS F401 Properties of water at 1 bar and at saturation pressure fluid temperature fluid pressure sound speed density specific heat capacity [°C] [bar] [m/s] [kg/m³] [kJ/kg/K 1,013 1402.9 999.8 4,219 1,013 1447.3 999.7 4,195 1,013 1482.3 998.2...

  • Page 157: D Conformity Declarations

    Annex FLUXUS F401 D Conformity declarations Conformity declarations UMFLUXUS_F401V2-1EN, 2020-06-12...
  • Page 158 Annex D Conformity declarations FLUXUS F401 2020-06-12, UMFLUXUS_F401V2-1EN...

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