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33 

 

NT UF 811 CP GB (e) / June 2015 

 

4.3.2 External probes (clamp-on)

  

 

External  probes  may  be  mounted  in  several  configurations  depending  on  the  number  of  ultrasound  wave 
reflections on the wall of the pipe: 

 

o

 

Direct or / configuration:  

 

 

 

o

 

Reflex or V configuration:  

 

 

 

Summary of Contents for Uf 811

Page 1: ...e Rosa Luxemburg 95610 RAGNY SUR OISE FRANCE Tel 33 0 1 30 27 27 30 Fax 33 0 1 30 39 84 34 2012 ULTRAFLUX S A All rights reserved No part of this document may be reproduced without prior written auth...

Page 2: ..._______________ 9 1 14 Cleaning the flow meter_________________________________________________________ 9 1 15 Recycling the flow meter ________________________________________________________ 9 1 16...

Page 3: ..._____________67 7 1 Introduction __________________________________________________________________ 68 7 2 Archiving processing and printing of saved files _____________________________________ 80 7 3...

Page 4: ...4 NT UF 811 CP GB e June 2015 CHAPTER 1 OVERVIEW...

Page 5: ...ainst dust and immersion IP 67 Total protection against dust protection against immersion for 30 minutes under 1m of water This protection is only valid if the installation has been carried out or aud...

Page 6: ...mportant The connectors must only be connected or disconnected with the power off and the equipment isolated If the flow meter unit is opened by anyone other than an Ultraflux technician the warranty...

Page 7: ...f 811 can manage 2 ultrasound chords Each connector corresponds to one ultrasonic chord in other words two probes As standard it is therefore necessary to use the Y cable provided with the flow meter...

Page 8: ...the front panel Blue measurement LED indicates whether or not the flow meter is measuring A flashing LED indicates normal operation An LED which is fixed on or off indicates abnormal or interrupted op...

Page 9: ...ustable storage interval Setting the measurement to zero if the flow is below a programmable value Readjustment of the zero if it is possible to completely stop the flow 1 13 Performance of the flow m...

Page 10: ...missions from 30 MHz 6 GHz EN 61000 4 6 Immunity to induced conducted disturbances Criterion B EN 61000 4 2 Immunity to electrostatic discharges Criterion B EN 61000 4 3 Immunity to radiated electroma...

Page 11: ...11 NT UF 811 CP GB e June 2015 CHAPTER 2 SAFETY INSTRUCTIONS...

Page 12: ...it off without opening or touching it then call the competent services in order to secure the premises The flow meter must not be used beyond the possibilities and specifications given in this manual...

Page 13: ...tact address For any requests for information please contact us at ULTRAFLUX 9 All e Rosa Luxemburg 95610 ERAGNY FRANCE http www ultraflux net E mail ultraflux ultraflux fr Tel 33 0 1 30 27 27 30 Fax...

Page 14: ...14 NT UF 811 CP GB e June 2015 CHAPTER 3 INSTALLATION AND WIRING...

Page 15: ...ltraflux to ensure the unit is leakproof and will operate correctly Important Avoid installing the Uf 811 close to a frequency converter If this cannot be avoided interference filters must be installe...

Page 16: ...he wire This edge may be very sharp It is recommended to cover the cut edge of the armour with insulating tape to prevent any accidents The armour must remain outside the plugs The shielding must pass...

Page 17: ...85 network a termination resistance of 120 Ohm must be added to the connector between pins A and B Only one of the two interfaces may be in operation at any one time The connector used is a male 5 pin...

Page 18: ...Tightening torque Screw terminals 0 2 Nm Tightening torque Set screw 0 8 Nm 1 Nm Plug fitting a Thread on the parts b Strip the cable by 35 mm Strip the conductors by 4 mm Splay the armour and place i...

Page 19: ...connected to connector I O 2 The connectors used are female 8 pin type M12 connectors with A coding View of the base For the I O 1 connector the pins have the following functions For the I O 2 connec...

Page 20: ...odules The pins have the following functions Pin Function 1 current 2 current 3 4 3 Wiring of the current input modules The pins have the following functions Pin Function 1 current A wire 1 2 current...

Page 21: ...e 1 3 red wire 2 4 white wire 2 Warning To ensure good measurement quality it is recommended to use shielded platinum probes 360 shielding connection is provided by the Binder connector Important For...

Page 22: ...ng functions Pin Function 1 I O 1 current 2 I O 1 current 3 I O 1 4 I O 1 5 I O 1 voltage A 6 I O 1 voltage A 7 I O 1 voltage B 8 I O 1 voltage B For the I O 2 connector the pins have the following fu...

Page 23: ...ch M12 0 4 Nm Tightening torque Screw terminals 0 2 Nm Tightening torque Set screw 0 8 Nm 1 Nm Plug fitting a Thread on the parts b Strip the cable by 35 mm Strip the conductors by 4 mm Splay the armo...

Page 24: ...configuration for your application The connector used is a male 4 pin M12 type connector with A standard coding View of the base NB pin 5 on base plate 5 is not used The pins have the following funct...

Page 25: ...crew 3 3 4 Power supply connector Warning Before wiring the power supply check that no current is circulating on the power supply cables The installation must be locked and tagged so that it cannot be...

Page 26: ...8 mm Tightening torque Wrench M12 0 4 Nm Tightening torque Screw terminals 0 2 Nm Tightening torque Set screw 0 8 Nm 1 Nm Plug fitting Thread on the parts Strip the cable by 35 mm Strip the conductor...

Page 27: ...r supply connector must be screwed into their allocated positions The connectors of the Uf 811 box are installed as shown on the figure below POWER COM I O 2 I O 1 Chord 2 Chord 1 Important All connec...

Page 28: ...28 NT UF 811 CP GB e June 2015 CHAPTER 4 INSTALLING A MEASURING POINT...

Page 29: ...d is fully developed and stable The following three conditions are not fulfilled in an area of disturbed flow for example at the outlet from an elbow or downstream from a regulating valve The speed pr...

Page 30: ...30 NT UF 811 CP GB e June 2015...

Page 31: ...a measurement made using 4 parallel chords placed at 1 6 D from a T followed by a butterfly valve The error under these very unfavourable conditions was 2 Under the same conditions a monochord measur...

Page 32: ...ed to refer to the teaching manual available on request in order to understand the significance of these settings o Parallel mode The chords are placed in parallel planes which section the fluid speed...

Page 33: ...2015 4 3 2 External probes clamp on External probes may be mounted in several configurations depending on the number of ultrasound wave reflections on the wall of the pipe o Direct or configuration o...

Page 34: ...accurate the measurement On the other hand the ultrasound echo will be weaker the longer the distance and therefore difficult to measure A compromise must therefore be found between accuracy and ease...

Page 35: ...face of the strip 3 Installing the probe Place the probe on the strip and fix it in place by firmly tightening the stainless steel collar supplied Preferably position the collar locking screw on the o...

Page 36: ...check with Ultraflux whether your probes can be extracted under load or not Whether an inserted probe may be extracted under load or not is determined by the probe used and the application conditions...

Page 37: ...f probe 7th step Readjust the alignment of the probes checking the gain displayed by the flow meter 3 Probes with air lock 1st step Check the position of the bosses relative to the drawing provided by...

Page 38: ...38 NT UF 811 CP GB e June 2015 CHAPTER 5 USING AND CONFIGURING THE Uf 811...

Page 39: ...ut using the keypad returns you to measurement mode Within a menu the and keys are used to change page These keys may also have a contextual function which in this case will be shown at the bottom of...

Page 40: ...liquid In advanced configuration you can define 3 different wall thicknesses to configure a wall in composite materials Two different types of probe may be used External clamp on probe the probe is p...

Page 41: ...operating modes the registration name the JBUS MODBUS characteristics configuration management etc PIPE FLUID CONFIGURATION setting of the type of fluid the pipe the chords the geometry of the chords...

Page 42: ...ct the configuration number under which you wish to save it The saving of the configuration is then confirmed when passing to another menu page or following an extended press of the Fn key The name of...

Page 43: ...is locked for a few seconds The time for which the flow meter is locked increases each time that an incorrect code is entered by the user Notes The flow meter can be locked manually Select the Locked...

Page 44: ...ment mode The flow meter automatically returns to the Measurement screens after approximately one minute The modified settings are then be taken into account This avoids the risk of forgetting to exit...

Page 45: ...w graph is 1 min each point of the curve represents the average value of the magnitude associated with the flow graph over 1 min and the whole screen shows the evolution of the flow over the last 144...

Page 46: ...ivated totalizer emits an incrementation pulse which can be returned on a relay output see section 5 4 4 point 5 each time that the Pulse weight x Unit volume flows in the metering direction of the to...

Page 47: ...l 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 disabled ON en...

Page 48: ...ltage output module The possible options are OFF disabled 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 the voltag...

Page 49: ...es a pulse with an adjustable width on each incrementation of the selected totalizer The pulse width must then be defined determining the time for which the relay remains closed the relay initially of...

Page 50: ...s greater 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 co...

Page 51: ...handling errors 3 Number of parameters for the logger Up to 30 variables can be recorded in the logger The number of variables can be adjusted Its maximum autonomy is for 530 000 time stamped reading...

Page 52: ...ger To do this define the maximum variation percentage with regard to the previous recording If the variation measured is greater than this maximum recording is instantly triggered no more than once p...

Page 53: ...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 sign in place of the acoustic signal The second screen shows...

Page 54: ...r to avoid untimely actions from the instrumentation and control part of the installation Two situations may arise Case no 1 Duration of the measurement loss less than the memory time In this case the...

Page 55: ...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...

Page 56: ...a non exhaustive list The celerity relating to the selected fluid is displayed automatically in the C0 field If a fluid not shown in the list you can select Product OTHER and define a special C0 value...

Page 57: ...automatic mode the viscosity of the fluid and the roughness of the inside of the pipe must be defined In manual mode you can define the KH yourself if you have a good understanding of the flow rate in...

Page 58: ...ltering When a filter has been activated it is possible to request that the flow meter disables the filter if the measurement changes very quickly This provides a filter which is sufficient to comfort...

Page 59: ...ds number Reynolds number at which the flow transition occurs and width LBR of the transition Comment The higher the LBR the more abrupt the transition 4 Seek gain and Gain max The gain is the paramet...

Page 60: ...ee to contact Ultraflux to determine the value of the weighting coefficients 5 6 2 Linearisation settings menu One last action possible on the flow is the linearisation of the result Depending on the...

Page 61: ...probes Before using this option you are strongly recommended to contact Ultraflux To use probes other than those of Ultraflux use the special probes function T0 represents the dead time of the probe...

Page 62: ...he data relating to the flow flow rate measured Reynolds number calculated KH average speed in the pipe etc 3 Specific information relating to the chords These pages which depend on the number of chor...

Page 63: ...d 5 Date and time This screen shows the date and time of the flow meter and the information relating to when it was last powered on 6 Info logger This page shows the status of the logger and the last...

Page 64: ...e required distance between the probes 9 Flow graph The flow graph is a screen which shows the changes in a particular magnitude in the form of a curve 5 7 2 Verification of the quality and consistenc...

Page 65: ...65 NT UF 811 CP GB e June 2015 CHAPTER 6 FUNCTION ENGINE...

Page 66: ...e function engine allows us to carry out this calculation internally in the flow meter 6 2 2 Calorimetry It is possible to measure the heat flow of an installation If a cold temperature measurement an...

Page 67: ...67 NT UF 811 CP GB e June 2015 CHAPTER 7 PC SOFTWARE...

Page 68: ...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...

Page 69: ...the flow meter Configuration menu to o Configure the PC software o Load the configuration file o Save the configuration file About menu to o Obtain information on the version of the PC software 7 1 2...

Page 70: ...downloads 7 1 5 Icons Icons are displayed at the bottom of each window of the Dialogue Menu with the flow meter This icon in the form of a disk runs the save procedure The software then asks you for...

Page 71: ...Measurement command 1 List of available tabs The measurement window contains the following tabs General tab contains the general information on the measurement QA flow rate tab contains the general i...

Page 72: ...2 NT UF 811 CP GB e June 2015 2 General tab This tab displays the main information about the measurement graphic display of the measurement instant values of the flow rate and flow velocity totalizers...

Page 73: ...isplays the main information concerning the measurement channel graphic display of the measurement instant values of the flow rate and flow velocity and KH information related to the measuring chords...

Page 74: ...he Dialogue Settings command contains the following tabs In the General drop down menu o General tab selection of the flow meter display language and name of the flow meter defined during the installa...

Page 75: ...on loaded in the PC is the current configuration of the flow meter 2 General tab in the General drop down menu The settings window is used to configure the flow meter from the PC As with the keypad yo...

Page 76: ...Advanced mode All the settings displayed below have been described previously in this document see section 5 4 5 4 Totalizers tab in the General drop down menu The screenshot below shows an example o...

Page 77: ...wn menu The screenshot below shows an example of settings in Advanced mode All the settings displayed below have been described previously in this document see section 5 4 4 You can choose whether or...

Page 78: ...ced mode All the settings displayed below have been described previously in this document see section 5 4 2 7 Definition of chords tab in the Pipe drop down menu The screenshot below shows an example...

Page 79: ...the external chord when the internal chord is faulty the external chord takes over the input module which will serve as a velocity measurement a 4 20 mA module may be used to recover a Doppler velocit...

Page 80: ...eriod and Time command 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 Data processi...

Page 81: ...81 NT UF 811 CP GB e June 2015 Appendix I Characteristic echo signals...

Page 82: ...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...

Page 83: ...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...

Page 84: ...84 NT UF 811 CP GB e June 2015 Appendix II Speed of sound in water...

Page 85: ...5 Sound propagation velocity 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...

Page 86: ...86 NT UF 811 CP GB e June 2015 Appendix III Troubleshooting III 1 Diagnostic indications III 2 Description of fault bits III 3 Fault grid...

Page 87: ...rectly positioned with regard to each other o Probes excessively clogged o Fluid too absorbent too much slurry excessively aerated Contact us and we will work with you to find the best solution o Prob...

Page 88: ...lay overflow appears permanently or intermittently in the case of a relay output configured in totalizer mode Cause o Too many pulses output within the allocated time Actions to take o Adapt the pulse...

Page 89: ...puts of the function 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...

Page 90: ...ay 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 based on the progr...

Page 91: ...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...

Page 92: ...the function engine If the problem persists contact Ultraflux Com ER There is a programming problem with the two DSP processors Turn the flow meter off and then back on If the problem persists contac...

Page 93: ...93 NT UF 811 CP GB e June 2015 Appendix IV Link protocol of the Uf 811 IV 1 Serial link characteristics IV 2 Reading of N words with N 125 IV 3 Modbus Jbus table IV 4 CRC16 calculation algorithm...

Page 94: ...ion speed from 300 to 115200 bauds Number of bits 8 Parity None Number of stop bits 1 For FLOAT type information it must be possible to read two consecutive words or 4 bytes The format complies with t...

Page 95: ...tion code for reading N words is 3 Request Data Slave no 3 address 1st word number of words CRC16 Size 1 byte 1 byte 2 bytes 2 bytes 2 bytes Response Data Slave no 3 number of bytes read value 1st wor...

Page 96: ...Unit USHORT 0212 530 0412 1042 Totalizer4 value ULONG 0213 531 0413 1043 Totalizer4 Weight USHORT 0215 533 0415 1045 Totalizer4 Unit USHORT 0216 534 0416 1046 0217 535 0417 1047 0217 535 0417 1047 Yea...

Page 97: ...1105 IQ FLOAT 0253 595 0453 1107 Fault ULONG 0255 597 0455 1109 Probe Reference USHORT 0257 599 0457 1111 Distance Between Probes USHORT 0258 600 0458 1112 0259 601 0459 1113 chord 03 0259 601 0459 11...

Page 98: ...233 Value FLOAT 02D1 721 04D1 1233 Fault ULONG 02D3 723 04D3 1235 02D5 725 04D5 1237 IO 02B 02D5 725 04D5 1237 Value FLOAT 02D5 725 04D5 1237 Fault ULONG 02D7 727 04D7 1239 02D9 729 04D9 1241 IO 03A 0...

Page 99: ...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 809 0529 1321 Fault ULONG 032B 811 052B 1323 032D 813 052D...

Page 100: ...xclusive 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 t...

Page 101: ...____________ 12 2 2 Symbols used on the flow meter __________________________________________________ 12 2 3 Contact address _______________________________________________________________ 13 CHAPTER...

Page 102: ...__________________________________________ 42 5 4 1 Configuration Menu _____________________________________________________________________ 42 1 Config Files Window___________________________________...

Page 103: ...____________________________________61 3 US TRT processing ________________________________________________________________________________61 5 6 4 Firmware update menu _______________________________...

Page 104: ..._________________________________________79 7 2 Archiving processing and printing of saved files _____________________________________ 80 7 3 Settings files____________________________________________...

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