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Ultraflux UF 831 Скачать руководство пользователя страница 40

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NT UF 831 CO GB (b) / March 2014

4) Relative mode

Starting from the bottom, specify for each section the immersion percentage of the upper elevation and the
corresponding hydraulic coefficient, the elevation of the last section being 0 (surface of the channel or the

river).

Comment:

By default, the breakdown of the hydraulic profile (into basic sections) proposed by the flow

meter copies the one recommended by the ISO 6416 standard concerning the ultrasonic flow measurement

in an open channel.

5.4.6 "Height / velocity (speed) settings" menu

1) Velocity profile in low water situation

When the level is below the lowest chord, the flow cannot be measured using ultrasound. It can however be
estimated using a linear interpolation curve with 4 points, or by self-learning (automatic regression).

Velocity

Height

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Содержание UF 831

Страница 1: ...NT UF 831 CO GB b March 2014 Uf 831 CO RV open channel or river User manual B timent Texas ragny Parc 9 All e Rosa Luxemburg 95610 RAGNY SUR OISE FRANCE Tel 33 0 1 30 27 27 30 Fax 33 0 1 30 39 84 34...

Страница 2: ...marks of ULTRAFLUX S A With a view to the constant improvement of its products Ultraflux reserves the right to modify them without notice Furthermore Ultraflux shall not be held responsible for any er...

Страница 3: ...pply 8 1 9 Protection against dust and immersion 8 1 10 Power supply 8 1 11 Environment for use of the cabinet 9 1 12 Cleaning the flow meter 9 1 13 Composition of a measuring point 9 CHAPTER 2 SAFETY...

Страница 4: ...TWARE 61 7 1 Introduction 62 7 2 Archiving processing and printing of saved files 76 7 3 Settings files 76 Appendix 1 Characteristic echo signals 77 Appendix 2 Speed of sound in water 80 Appendix 3 Tr...

Страница 5: ...5 NT UF 831 CO GB b March 2014 CHAPTER 1 OVERVIEW...

Страница 6: ...cation interface the standard protocol chosen is the Slave JBUS MODBUS This is used to connect the flow meter to an instrumentation and control system or to a computer Ultraflux provides PC software c...

Страница 7: ...mple to the passing of air bubbles or other faults adjustable storage interval Setting the measurement to zero if the flow is below a programmable value Readjustment of the zero if it is possible to c...

Страница 8: ...Ethernet for example the protection index becomes IP20 1 10 Power supply There are two power supply ranges for the flow meter 110 to 240 VAC 50 60 Hz 9 to 36 VDC The power of the flow meter is less th...

Страница 9: ...incidents which may occur following a failure to respect these instructions Comments Check the marking on the cabinet to ensure its supply voltage The flow meter is intended for an overvoltage catego...

Страница 10: ...10 NT UF 831 CO GB b March 2014 CHAPTER 2 SAFETY INSTRUCTIONS...

Страница 11: ...at II 2 1 Symbols used on the flow meter Warning risk of electric shock Warning risk of DANGER see note Ground Protective ground User manual must be read before use Disconnection of flow meter when po...

Страница 12: ...gure the flow meter for its measurement results to be correct It is recommended that interventions be carried out by qualified staff from Ultraflux to ensure this is the case This is highly recommende...

Страница 13: ...rance Ultraflux delegates the responsibility for financial and also logistical recovery to the user who will manage their own waste 2 6 Contact address For any requests for information please contact...

Страница 14: ...14 NT UF 831 CO GB b March 2014 CHAPTER 3 INSTALLATION AND WIRING...

Страница 15: ...also ensure that the protection against dust and immersion is maintained They must therefore remain closed in normal use 1 Protective opening 2 Power supply connector 3 Communication connectors 4 Inp...

Страница 16: ...low meter on a wall Make attachment holes on a wall which is sufficiently solid Firmly screw the flow meter to the wall so that it does not fall take care with cavity walls The area around the support...

Страница 17: ...he cutting edge of the armor after cutting it to strip the wire This edge may be very sharp It is recommended to cover the cut edge of the armor with insulating tape to prevent any accidents Screw the...

Страница 18: ...an ultrasonic chord in other words two probes As standard it is therefore necessary to use the Y cable provided with the flow meter in order to separate the two probe cables The flow meter can be con...

Страница 19: ...minary comment Before accessing the area reserved for the electronic connectors used to connect the flow meter to the inputs outputs and to the probes the wires must be stripped and the grounding stri...

Страница 20: ...5 Wiring of the inputs outputs 2 On Off inputs outputs relay Each relay of the UF 831 is a normally open relay contact Breaking capacity of each relay U 50 V I 10 mA The maximum frequency of a relay...

Страница 21: ...circulating on the power supply cables The installation must be locked and tagged so that it cannot be inadvertently powered on for example by someone other than the user Steps Install the protective...

Страница 22: ...22 NT UF 831 CO GB b March 2014 CHAPTER 4 IMPLEMENTING A MEASURING POINT...

Страница 23: ...ents and supports that are possible for wet probes for open channels and rivers we will not go into each of them in detail but rather list the general principles and prerequisites for smooth operation...

Страница 24: ...s need to be taken on site in relation to the water level The level probe s The velocity measurement chords ultrasonic probes 4 4 Analysing and processing data measured on site In preparation for conf...

Страница 25: ...collected to the converter All of the data collected previously points 4 3 and 4 4 must be transferred to the converter There are two ways you can do this Using the PC software for your Uf 831 see Ch...

Страница 26: ...26 NT UF 831 CO GB b March 2014 CHAPTER 5 USING AND CONFIGURING THE UF 831...

Страница 27: ...th 3 different types of displays Measurement displays mode flow quality Settings displays mode description of section logger Echo displays mode landscape zoom 5 1 2 Keypad The Fn for Function key is u...

Страница 28: ...r If no key is pressed for approximately one minute the UF 831 automatically returns to measurement mode and to the display chosen as priority using B For a given parameter the value to be applied is...

Страница 29: ...e river Height is used to refer to all elevations given in this reference system Example The water is at 150 mm on a water level gauge The flow meter will display the level of the water surface in the...

Страница 30: ...th regard to this plane Comments The highest point must be greater than the maximum foreseeable water level If the water exceeds this height the entire area located above this last point is not taken...

Страница 31: ...cription of the section the plane is located at a height of 26m NGF 5 2 2 Number of channels Note for multi channel flow meters only it is possible to define the number of channels to be managed by th...

Страница 32: ...required option and use the and keys 5 3 1 Flow meter menu Depending on the type of flow meter and the configuration simple normal or advanced selected the flow meter menu may change Below is a non ex...

Страница 33: ...settings The introduction of a valid code is used to prohibit the modification of the settings for anyone who does not have the code The settings can then be viewed freely but cannot be modified The c...

Страница 34: ...inute after pressing any key then goes off OFF No back light 7 Timer before return to Measurement mode The flow meter automatically returns to Measurement mode after approximately one minute The modif...

Страница 35: ...ime interval between two successive points The possible values are 1 s 5 s 10 s 30 s 1 min 2 mins 5 mins 10 mins 15 mins 30 mins 1 hr 2 hrs 6 hrs 12 hrs and 24 hrs Example If the period of the flow gr...

Страница 36: ...tc it can be estimated using parameter S0 which defines a surface of the section in which the velocity is constant If this parameter is positive the calculation of the flow adds this section to the hy...

Страница 37: ...es a Level 1 fault Note To measure a level a simple solution involves using a current input The flow meter will deduce the level of water in which the sensor is immerged from the current measured Simp...

Страница 38: ...ation between the average velocity V in the entire wetted section and the velocity measured by a chord immerged at d D Comments The deepest section is marked by the bottom of the channel or the river...

Страница 39: ...mode all elevations are specified with regard to the reference plane H0 Relative mode in which the elevations marking the sections are specified as an immersion percentage for example point 1 95 imme...

Страница 40: ...kdown of the hydraulic profile into basic sections proposed by the flow meter copies the one recommended by the ISO 6416 standard concerning the ultrasonic flow measurement in an open channel 5 4 6 He...

Страница 41: ...ger a learning mode for this height velocity law which is done by automatic regression The flow meter will then estimate what the height velocity curve could be taking into account the measuring point...

Страница 42: ...lization of all flows whatever the direction 2 Pulse unit and weight Each activated totalizer emits an incrementation pulse which can be returned on a relay output see p X each time that the Pulse wei...

Страница 43: ...ll additional inputs outputs please contact Ultraflux to find out the specifications of all available inputs outputs 1 Current input and voltage input module The possible options are OFF deactivation...

Страница 44: ...nt voltage output module The possible options are OFF deactivation Voltage output o 0 5 V o absolute value 0 5 V Current output o 0 20 mA 4 20 mA 0 24 mA o absolute value 0 20 mA 4 20 mA 0 24 mA For t...

Страница 45: ...d totalizer The pulse width must then be defined determining the time for which the relay remains closed the relay initially off is then on for half of the period then off again for at least the same...

Страница 46: ...eater than the indicated threshold The relay switches to the opposite state if the value concerned is lower than the threshold Comment In order to restrict the relay backlash when the dimension concer...

Страница 47: ...step The recording period of the logger can be set from 1s to 24 hrs 1 s 5 s 10 s 30 s 1 min 2 mins 5 mins 10 mins 15 mins 30 mins 1 hr 2 hrs 6 hrs 12 hrs and 24 hrs Each recording presents the averag...

Страница 48: ...d is greater than this maximum the recording is instantly triggered no more than once per second Comment A percentage equal to 0 disables the associated value The following figure shows the reduction...

Страница 49: ...alled the landscape display Comment If no acoustic signal reaches the expected zone for example if one of the probes is not connected or if one of the probe cables is damaged the screen displays a sig...

Страница 50: ...rom the instrumentation and control part of the installation Two situations may arise Scenario no 1 Duration of the loss of measurement less than the memory storage time In this case the flow meter re...

Страница 51: ...ines the force of the filtering following a flow rate step quick opening of the isolation dam the value measured reaches the final value at 1 after the time constant To adjust this time constant a sim...

Страница 52: ...ion between the two signals The minimum immersion depth of the probes below which the measured velocity is considered invalid must therefore be indicated This minimum immersion depends on the frequenc...

Страница 53: ...s sufficient to comfortably see the evolution of the measurement and to retain reactivity while not filtering large variations in velocity 2 Seek gain and max gain The gain is the parameter which dete...

Страница 54: ...he value of the flow by 20 at this point etc There are two tables one for positive flows and one for negative flows 5 6 3 Advanced settings menu 1 Simulation mode The flow meter can be used in Measure...

Страница 55: ...represents the frequency of the probe Angle relates to angle of the ultrasound probe For an open channel probe the angle is always 0 Text is used to identify the special probe created in the list of...

Страница 56: ...This page displays the data relating to the flow flow rate average velocity in the channel water level 3 Specific information relating to the chords These pages depending on the number of chords provi...

Страница 57: ...te and time This screen indicates the date and time of the flow meter and the information concerning the last powering on 6 Info logger This page indicates the status of the logger and the last record...

Страница 58: ...nce between probes These pages depending on the number of chords provide the reference of the associated probes for each chord 9 Flow graph The flow graph is a screen displaying in the form of a curve...

Страница 59: ...59 NT UF 831 CO GB b March 2014 CHAPTER 6 FUNCTION ENGINE...

Страница 60: ...On request Ultraflux can quickly integrate a new feature for your UF 831 6 2 Example of application 6 2 1 Calculating the temperature of the water The calculation of the temperature of the water can...

Страница 61: ...61 NT UF 831 CO GB b March 2014 CHAPTER 7 PC SOFTWARE...

Страница 62: ...install the software 1 Run the Setup exe installation program included on the CD ROM 2 Select the language to use for the installation and for displaying the screens 3 Using the Browse button specify...

Страница 63: ...tings of the flow meter Option menu o Configuration of the PC software About menu o Information on the version of the PC software 7 1 2 Connecting the flow meter to the PC To connect the UF 831 to the...

Страница 64: ...lly for data logger downloads 7 1 5 Icons Icons are displayed at the bottom of the window This icon in the form of a disk runs the save procedure The software then asks you for the name of the folder...

Страница 65: ...logue Measurement command 1 List of available tabs The measurement window contains the following tabs General tab contains the general information on the measurement QA tab contains the general inform...

Страница 66: ...66 NT UF 831 CO GB b March 2014 2 General tab This tab displays the main information of the measurement graphic display of the measurement instant values of the flow rate and flow velocity totalizers...

Страница 67: ...ays the main information concerning the measurement channel value of the flow the flow velocity the section and the water height It also provides information concerning the measurement chords Comment...

Страница 68: ...ection of the flow meter display language and name of the flow meter defined during the installation o Logger tab description of the operation of the logger o Totalizer s tab definition of the operati...

Страница 69: ...signment of the inputs o Height Velocity tab definition of the operation of the flow meter in low water mode o Linearization tab flow linearization coefficient Once the settings are completed upload t...

Страница 70: ...settings in Advanced mode All parameters displayed below are described previously in this document see chapter 5 4 Totalizer s tab in the General drop down menu The screenshot below shows an example...

Страница 71: ...ment see chapter 5 You can choose whether or not to activate the Totalizer Logger and Input output functions resources The software allows the date and time of the UF 831 to be synchronized with those...

Страница 72: ...tings in Advanced mode All parameters displayed below are described previously in this document see chapter 5 7 Definition of chords tab in the Channel drop down menu The screenshot below shows an exa...

Страница 73: ...xternal chord when the internal chord is faulty it is the external chord which takes over the input module which will serve as a velocity measurement a 4 20 mA module may serve to recover a Doppler ve...

Страница 74: ...ample of settings in Advanced mode All parameters displayed below are described previously in this document see chapter 5 10 Level tab in the Channel drop down menu The screenshot below shows an examp...

Страница 75: ...of settings in Advanced mode All parameters displayed below are described previously in this document see chapter 5 12 Linearization tab in the Channel drop down menu The screenshot below shows an ex...

Страница 76: ...d Time commands you will be able to process this data with the software used for data handling Excel by default if this is installed on your computer A macro for Excel is provided The data processing...

Страница 77: ...77 NT UF 831 CO GB b March 2014 Appendix 1 Characteristic echo signals...

Страница 78: ...litude of the echo is at its maximum and the echo is rising rapidly without too much distortion deformations The following figures show the most commonly observed echo signals Ideal signal quick rise...

Страница 79: ...signal gain greater than 50 dB may mean that the probes require realignment or maintenance pollution on the surface of the probe Presence of electromagnetic interference Comment in this case move the...

Страница 80: ...80 NT UF 831 CO GB b March 2014 Appendix 2 Speed of sound in water...

Страница 81: ...ch 2014 Speed of sound in water t C C m s t C C m s 0 1422 8 30 1506 4 5 1426 5 35 1520 1 10 1447 6 40 1529 2 15 1466 3 45 1536 7 20 1482 7 50 1542 9 25 1497 Approximate value C 1557 0 0245 74 t 2 Cel...

Страница 82: ...82 NT UF 831 CO GB b March 2014 Appendix 3 Troubleshooting Diagnosis indications Description of the fault bits Fault grid...

Страница 83: ...rd to each other o Probes excessively clogged o Fluid too absorbent too much slurry excessively aerated Consult us and we can work together to find the best solution o Faulty probes or failure of the...

Страница 84: ...essage relay overflow appears permanently or intermittently in the event of a relay output configured in totalizer mode Cause o Too many pulses output within the allocated time Actions to take o Adapt...

Страница 85: ...engine This fault is used to identify a calorimetry problem for example 19 ultrasound configuration The ultrasonic board has a configuration problem 20 alarm C A peripheral system has a fault 21 alar...

Страница 86: ...mmed period 1 relay A output outside range Relay A cannot output the required frequency based on the programmed range 2 on relay B output metering Relay B cannot output the number of pulses required b...

Страница 87: ...rd immersion Chord submerged 26 overspeed underspeed Chord overspeed underspeed 29 flow calculation Chord taken into account in the flow calculation 30 fault Fault on a chord 31 not valid Chord not va...

Страница 88: ...ion engine inputs If the problem persists contact Ultraflux Com ER There is a programming problem for the two DSP processors Turn the flow meter off and then back on If the problem persists contact Ul...

Страница 89: ...89 NT UF 831 CO GB b March 2014 Appendix 4 Link protocol of the UF 831 Serial link characteristics Reading of N words with N 125 JBUS MODBUS table CRC16 calculation algorithm...

Страница 90: ...op bits 1 Comment To ensure that an automaton can take measurement recordings contact Ultraflux to obtain the measurement variables description table in the JBUS MODBUS protocol For FLOAT type informa...

Страница 91: ...The function code for reading N words is 3 Request Slave no 3 address 1st word number of words CRC16 1 byte 1 byte 2 bytes 2 bytes 2 bytes Response Slave no 3 number of bytes read value 1st word value...

Страница 92: ...020F 527 040F 1039 Totalizer3 Weight USHORT 0211 529 0411 1041 Totalizer3 Unit USHORT 0212 530 0412 1042 Totalizer4 value ULONG 0213 531 0413 1043 Totalizer4 Weight USHORT 0215 533 0415 1045 Totalize...

Страница 93: ...ge V FLOAT 0249 585 0449 1097 T FLOAT 024B 587 044B 1099 DeltaT FLOAT 024D 589 044D 1101 C FLOAT 024F 591 044F 1103 Gain FLOAT 0251 593 0451 1105 IQ FLOAT 0253 595 0453 1107 Fault ULONG 0255 597 0455...

Страница 94: ...9 0489 1161 T FLOAT 028B 651 048B 1163 DeltaT FLOAT 028D 653 048D 1165 C FLOAT 028F 655 048F 1167 Gain FLOAT 0291 657 0491 1169 IQ FLOAT 0293 659 0493 1171 Fault ULONG 0295 661 0495 1173 Probe Referen...

Страница 95: ...02C9 713 04C9 1225 IO 01 02C9 713 04C9 1225 Value FLOAT 02C9 713 04C9 1225 Fault ULONG 02CB 715 04CB 1227 02CD 717 04CD 1229 IO 02 02CD 717 04CD 1229 Value FLOAT 02CD 717 04CD 1229 Fault ULONG 02CF 71...

Страница 96: ...t ULONG 02F7 759 04F7 1271 02F9 761 04F9 1273 IO 13 02F9 761 04F9 1273 Value FLOAT 02F9 761 04F9 1273 Fault ULONG 02FB 763 04FB 1275 02FD 765 04FD 1277 IO 14 02FD 765 04FD 1277 Value FLOAT 02FD 765 04...

Страница 97: ...3 1315 0325 805 0525 1317 Function output 04 0325 805 0525 1317 Value FLOAT 0325 805 0525 1317 Fault ULONG 0327 807 0527 1319 0329 809 0529 1321 Function output 05 0329 809 0529 1321 Value FLOAT 0329...

Страница 98: ...usive OR n number of bits poly calculation polynomial of CRC16 1010 0000 0000 0001 generator polynomial 2 X2 X15 X16 the first byte sent is the one with the least significant bits END BYTE Offset to r...

Страница 99: ...ing of the current output modules Wiring of the current input modules Wiring of the voltage input modules Wiring of the temperature modules Wiring of the communication port Wiring of the serial link i...

Страница 100: ...s must be wired as follows Pins Functions 1 probe upstream wire A 2 probe upstream wire B 3 probe downstream wire A 4 probe downstream wire B Base view Diameter of shield 3 5 mm Wrop shield with coppe...

Страница 101: ...relay B 4 relay B Wiring of the current output modules The pins have the following functions Pins Functions 1 current 2 current 3 4 Wiring of the current input modules The pins have the following func...

Страница 102: ...ing is that of a 4 wire sensor Pins Functions 1 red wire 1 2 white wire 1 3 red wire 2 4 white wire 2 Warning In order to provide a good measurement quality it is recommended to use platinum armoured...

Страница 103: ...e serial link connector is a 6 pin connector the function of which depends on the type of wiring Wiring of the serial link in RS232 mode The pins have the following functions Pins Functions 1 Rx UF 83...

Страница 104: ...e of supply 110 240 VAC supply or DC supply Pin function for the 110 240 VAC supply The pins have the following functions Pins Functions 1 phase 2 not connected 3 neutral 4 protective ground Pin funct...

Страница 105: ...low meter 11 2 2 Assembly 11 2 3 Wiring 12 2 4 Using the flow meter 12 2 5 Recycling the flow meter 13 2 6 Contact address 13 CHAPTER 3 INSTALLATION AND WIRING 14 3 1 Opening the cabinet 15 3 2 Genera...

Страница 106: ...ence between customer reference system and section description reference system 31 5 2 2 Number of channels 31 5 3 Configuring the UF 831 32 5 3 1 Flow meter menu 32 5 4 SIMPLE configuration 33 5 4 1...

Страница 107: ...iation 48 5 4 10 Echo display menu 49 5 5 NORMAL configuration mode 49 5 5 1 Pipe fluid settings menu 50 1 Memory 50 2 Filter 51 3 Calibration CutOff Q 52 4 Immersion depth of the probes 52 5 Weightin...

Страница 108: ...wn menu 70 5 Input output tab in the General drop down menu 71 6 Channel tab in the Channel drop down menu 72 7 Definition of chords tab in the Channel drop down menu 72 8 Description of section tab i...

Страница 109: ...urrent output modules 101 Wiring of the current input modules 101 Wiring of the voltage input modules 102 Wiring of the temperature modules 102 Wiring of the communication port 103 Wiring of the seria...

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