VPFlowScope user manual step by step - ENG 27-01-2011
Contents
1. l How et Hese a 37 24 Acquire EN EEEN Pressure R 28 97 Temperature hb mh Export inmin anni fn kini ia 1 SFPS sues crea UPM Setup Graph 1 X axis time Autoscale Dynamic scroll 11 00 00 Cima 12 00 00 AM to 11 59 59 PM gt Y axis values Autoscale Manual 0 00 to 2000 00 Data Z Display markers VPFlowScope User Manual Rev 22 February 2011 When data is on and outside of the boundaries of the specifications of the VPFlowScope the real time data box will appear red As in the picture below the pressure range is from 0 16 bar In the data below pressure is 0 so the lowest boundary Therefore you see a red box as a warning that you can be outside its specifications TUYAN AEBEESS asa onan m runs seyxiyl n ROIO 29 3 201 5 4 Data export Exporting data to a csv file is done by clicking right mouse chapter 4A 6 You can choose the settings of the export file to make it more manageable for yourself You can choose the export type for every parameter you can split files into days and you can average the data In a spreadsheet program you can process the data further In the csv file the data is separated by semicolon How to separate and process the data with excel see appendix D The totalizer in the exported csv file is cal2. ME INSTRUMENTS VPFlowScope Manual Firmware 1 0 15 VPStudio 1 0 19 Revision 22 February 2011 VPFlowScope is a registered trademark of Van Putten Instruments B V Copyright 2006 2011 Patents pending Our product technology and software are protected by various patents trademarks and copyrights Van Putten Instruments Buitenwatersloot 335 2614GS Delft The Netherlands T 31 0 15 213 1580 F 31 0 15 213 0669 info vpinstruments com www vpinstruments com VPFlowScope User Manual Rev 22 February 2011 WARNING READ THIS FIRST WFP INSTRUMENTS Congratulations You have bought a state of the art insertion mass flow meter from VPInstruments The VPFlowScope and VPFlowMate are versatile and easy to use and can be very powerful tools to monitor compressed air consumption However there are a few important issues you need to know before using these kind of instruments Please also see the instruction manual before use Insertion probes can be dangerous Please familiarize yourself with the forces on the probe under pressurized conditions and ALWAYS use the safety chain or an additional safety belt when installing the instrument Respect the local guidelines and regulations for working with pressurized equipment Gas flow through pipes follows certain physical laws These physical laws have serious consequences for the installation requirements Familiarize yourself with these laws to make sure that t
3. 26 5 EISCHICALCOMACCHO Sire 111 diari 29 645 USING ThE 45220 MA n Edan 29 52 USNO MOODUS reiii ii ii ee ee eee M 30 INS ce ii 3 000 34 Zl CEsihuihe5 070 b b n go 34 7 2 Software and firmware KK A K KA 34 ho RECON yy 34 75 34 6 Ic ol gn 35 PDD CHOC A MS dirimere 37 Appendix B Electrical installation i 37 Appendix C Mass flow and volume i 39 Appendix D Basic graphs in Excel cirie 41 Appendix E Extra tips for electrical connection and 4 20 kk 44 Appendix F Display connector M12 ei 45 VPFlowScope User Manual Rev 22 February 2011 VPFlowScope User Manual Rev 22 February 2011 1 Introduction Congratulations We thank you for your order and the confidence in our company You purchased the most easy to use compressed air measurement tool in the world With the VPFlowScope you can monitor and record flow pressure temperature and total air consumption simultaneously Installation is very easy In chapter 3 the plug and play installation usage is explained You find information on the display of the VPFlowScope in chapter 5 Chapter 5 shows the extended usage of the software program VPStudio Other installations using 4 20mA and Modbus outputs can be found in chapt
4. For the 32 bit holding registers the multiplication factor needs to be programmed via VPStudio You need VPStudio 1 19 0 or higher to perform this action The default factor is 100 but with older upgraded units the factor will be 0 resulting in no output p Josten lm Flow in mn sec Flow in m hr Flow in In min Flow in scfm Flow in m min Flow in sfps Pressure in bar Pressure in psi Temperature in degC Temperature in degF Totalizer in mi 32 bit integer x10 32 bit integer 32 bit integer 32 bit integer 32 bit integer 32 bit integer x1 x x x X 32 bit integer x1 32 bit integer x1 32 bit integer x10 32 bit integer 32 bit integer 32 bit integer x x1 X ss p m 0 VPFlowScope User Manual Flow in mn sec Flow in m hr Flow in In min Flow in scfm Flow in m min Flow in sfps Pressure in bar Pressure in psi Temperature in degC Temperature in degF Totalizer in mi Floating point Floating point Floating point Floating point Floating point Floating point Floating point Floating point Floating point Floating point Floating point Floating point Floating point Rev 22 February 2011 6 2 3 Basic use First steps You can practice or try out the VPFlowScope Modbus commands with your PC using the VPFlowScope start kit You can use the free Modbus demonstration program Modpoll exe This program is ideal to test t
5. Semi bi directional 4 mA 1 m sec just to see backflow 20 mA 150 m sec VPFlowScope User Manual Rev 22 February 2011 Appendix F Display connector M12 View on the display module connector M12 female Pin description 1 12 24V DC 2 0 Volt O 3 out 4 20 mA active 4 RS485A 5 RS485 Cable M12 cable with 5 wires see chapter 5 for wiring of the cable VPFlowScope User Manual Rev 22 February 2011 www vpinstruments com VPFlowScope User Manual Rev 22 February 2011
6. RTU protocol 4 20 mA output selectable via software to indicate flow pressure or temperature Liquid Crystal LCD Blue with auto power save 500 000 points 400 mm 15 inch other lengths on request 12 7 mm 0 5 inch Compression fitting 0 5 inch PN20 IP52 when mated to display module Rev 22 February 2011 Electrical See appendix B Connection type Power supply UL CUL CE Environment Environmental conditions Storage temperature Storage humidity VPFlowScope User Manual M12 5 pole 12 24 VDC 10 Class 2 UL 14 AZ Industrial Control Equipment EN 61326 1 EN 50082 1 Ambient 0 60C 32 140T 10 95 Avoid condensation at all times Rev 22 February 2011 ion overview Installati Appendix A JONUDLW UI SYD 998 WW OG gt Buidid ul S PPILU Ul LUO Og JOSUSS Q x G lt al lt lt lt MOTH u pensdn q x OZ 238 GD AS Ws g 49 pl did ul SIOH 10139 WMS 40 99UU09 6 0 y buaj puo dn 40 eID Duidid 1943Y 9 apisdn jpjejdwoo aqoud juno J34A N G LULU OG gt 49 aLUDIP did LI UIdep uondesul JO PNUDLU J9SN A0940 044 G 0 Q GO SI U dap uolMesuUl SU 1Du SANS SHON JOHOOS JO JUSWUDIJDSILU 40 0 ybnous bi nq ajqissod 80 pws SD joy d y 7 ejgissod sp uD pi s 50 julo
7. VPFlowScope is not watertight it is only splash proof Avoid also corrosive atmosphere where possible Condensation Vibrations Corrosive atmosphere where possible Electrical problems high voltage high power Mechanical vibration and danger walking bridges fork lift trucks e Any source of potential error VPFlowScope User Manual Warning These devices are only for use with air nitrogen and other non hazardous or non combustible gases The maximum working pressure is 16 bar Different pressure ratings are indicated on the product Rev 22 February 2011 Piping guidelines DONT S Like any flow meter the VPFlowScope requires a minimum up and downstream piping The immediate up and downstream piping must be of sufficient length straight and free of obstructions Check de piping table on the next page for details Weld beads on the internal wall of the pipe before or after the VPFlowScope should be ground flush with the pipe wall before the meter is installed Proper style and proper size gaskets should always be used when installing the VPFlowScope It is advised to install the VP FlowScope probe of least at an angle of 15 upwards This is important to prevent the built up of water in or around the sensor or the connection tee Water will have effect on the measuring results If possible you can always choose a longer upstream length as these are minimum values The up and downstream lengths
8. are used industry wide as guidelines and will never be a guarantee for obtaining the true value So always be careful and try to build up your own experience from practical measurements See also to the ISO 14511 2001 Measurement of fluid flow in closed conduits Thermal mass flow meters international standard VPFlowScope User Manual Rev 22 February 2011 Piping table General rule The VPFlowScope should be installed with at least 20 times the pipe diameter upstream and at least 5 times the pipe diameter downstream to avoid any distortion of the flow profile For some exceptions the upstream length needs to be longer or can be short Check the piping table below for your application Upstream object Description Minimal length Double elbow These objects cause swirl and unequal flow profiles 40 D Diameter change small gt gt big 0 Diameter changes can be abrupt or sloped These changes may cause jet shaped flow profiles which result in a high reading Diameter change big gt gt small These objects have a positive effect They flatten the flow 10 D profile Closed or open branch These objects generate vortices and flow profile disturbance 30 D Communication with end user Sometimes you cannot meet all the installation guidelines and you have to install in non perfect conditions In some cases a measurement with higher uncertainty is better than no measurement at all Communicat
9. can only read out data in SI Units 5 2 Connection The connection with your VPFlowScope can be viewed nn in the right corner below When the connection is sere consors disconnected please check the connections View the mete tesse sam sa COM7 VerlowScope Unknown A Device is turned off or baudRate wrong Unknown connection in the Device properties window Click right mouse button on your VPFlowScope in the explorer field and select Properties to go to the Device properties window Your connection with the USB device is ok when you can see your VPFlowScope in the Connection tab The status shows what else can be wrong when there is no connection Use Scan to refresh the screen 5 3 VPFlowScope settings and basic configurations Click on your VPFlowScope In the status tab you can find specifications of your VPFlowScope like serial number firmware version and gas type One important aspect is that you can see when your VPFlowScope was produced last calibrated and when it needs maintenance In the installation tab you can configure your VPFlowScope See a picture of the installation tab on the next page VPFlowScope User Manual Rev 22 February 2011 FER File Options Tools Help Explorer Details Com Port Nr COM tat Installation E VPScope1 pies R5485 Communication 4 20 mA output Stopbits 1 v m v 1 A Parity None 20 ma 150 00 ling Madbus Miscellan
10. 45 4891 7 23 2007 13 02 06 37 5 70649 45 4758 7 23 2007 13 02 5 70706 45 4897 7 23 2007 13 02 06 37 5 70729 45 488 1239845567 6 3 10 11 12 1344 15 16 17 18 13 2 21 Gegevensbereik Voarbeeld excel file 1 C 2 c 22 Reeks in O Rijen Kolommen ara ini Go to the second tab to give the graph a name or to add more graphs in the same graphic Click Next Move through the different tabs to e g name the total graphic and the axes You can also change the axes legend etc They can be useful to make the graphic clearer and better readable Click next 1123 2007 13 02 05 5 B 854852 7423 2007 13 02 06 570643 45 4758 854952 Choose where you want z ami 13020 if E to place your graphic in EN Wizard Grafieken Stap 4 van 4 Locatie grafiek the current tab or in a new tab and click complete 32 33 34 The graphic appears Ar nderen Bi VPFlowScope User Manual Rev 22 February 2011 E Microsoft Excel voorbeeld excel file EE 285 gestand Bewerken Beeld Invoegen Opmaak Extra Grafisk Venster Help up 216 ZA gt Jl fu mo z 4 UR 00 zel KE ga mz aa V Wel Ke 7 23 2007 7 23 2007 7 23 2007 7423 2007 7 23 2007 7 23 2007 7 23 2007 7 23 2007 10 7 23 2007 7123 2007 7 23 2007 7123 2007 7 23 2007 1 7 23 2007 7 23 2007 7 23 2007 T18 7723 2007 7 23 2007
11. 485 converters which provides extensive user manuals and application notes about RS485 networks After you have studied the Modbus and the RS485 standard you can start making your first network See an example network with three VPFlowScopes and one master below You see pull down pull up and termination resistors These resistors need to be calculated Refer to the RS485 related literature for details Line To Balanced pair termination 1 2 VPFlowScope slaves VPFlowScope User Manual Rev 22 February 2011 7 Service The VPFlowScope needs regular maintenance to ensure that the product is functioning properly Especially when the product is used for mobile air audits we recommend inspecting the instrument before and after every audit to ensure that the product has not been damaged For precision measurement equipment such as the VPFlowScope a proper maintenance program is key to reliable measurement results and a long product lifetime 7 1 Cleaning the sensor The sensor can be gently cleaned using cleaning alcohol or an ultrasonic cleaning bath Make sure that no alcohol remains in the pressure sensor hole Damaged sensor modules need to be returned for re calibration or exchange 7 2 Software and firmware updates News on software and firmware updates can be found on www vpinstruments com or is provided by your local re seller The VPFlowScope sensor can be updated via the RS485 port For updating the firmware of the d
12. 5 7084 145 4921 854852 2007 07 23 13 01 46 38 6314 5 70385 45 5536 854852 1205000060 50 3 2007 07 23 13 01 47 38 3287 5 70385 21 12007 07 13 02 06 37 7325 5 70649 45 4758 854852 i 12007 07 25 13 01 45 36 2319 5 70437 2007 07 23 13 02 07 37 8608 5 70706 45 4897 854852 j 22 2007 07 24 13 02 08 37 5825 5 70729 45 458 854852 2007 07 23 13 01 50 38 5686 5 70463 45 5219 854852 ET 2007 07 23 13 01 51 536 5666 5 70463 45 5219 2007 07 23 13 01 54 38 3601 5 70489 45 5165 854852 2007 07 23 13 01 55 37 8282 5 7054 45 4928 854852 2007 07 23 13 01 56 37 8262 5 7054 45 4928 854852 2007 07 23 13 01 57 37 9074 5 70589 45 4946 854852 2007 07 23 13 01 58 36 0035 5 70589 45 4903 854652 2007 07 23 13 01 59 38 3728 5 70602 45 4901 854852 2007 07 23 13 02 00 38 0702 5 7062 45 484 854852 16 2007 07 23 13 02 01 38 0702 5 7062 45 484 854852 2007 07 23 13 02 02 37 947 5 70655 45 4963 854852 2007 07 25 13 12 03 37 4615 5 70641 45 4921 654852 2007 07 23 13 02 04 37 8771 5 70628 45 4924 854852 2007 07 23 13 02 05 37 7489 5 70645 45 4891 854852 2007 07 23 13 02 06 37 7325 5 70649 45 4758 854852 Ez 2007 07 23 13 02 07 37 6608 5 70706 45 4897 054852 EENE voorbeeld 2007 07 23 13 02 08 37 5825 5 70729 45 486 854852 Gereed Mk Mestdata ld To convert the data to different columns Microsoft Excel voorbeeld excel file select the first column as seen above and j Bewerken G
13. 7 23 2007 7 23 2007 7 23 2007 5 70385 5 70385 5 70437 5 70463 455219 854852 5 70463 45 5219 5 70477 45 5183 5 70489 45 5165 854852 57054 45 4928 854852 5 7054 45 4928 854852 5 70589 45 4946 854852 5 70589 45 4903 854852 5 70602 45 4 d Flow measurement 5 70655 45 41 5 70641 45 44 5 70628 45 41 5 70645 45 4 5 70649 45 4 5 70708 45 41 5 70729 45 455536 854852 1234 5 6 7 8821011113 Tekengebied 7 18 19 20 21 3 Internet v r Meetdatali Cynthia Kui E Report Pegasus Mal fh Making a ur FI Microsoft Ex NL cm MINA 14 03 am You can adjust the lay out of the graphic like colour or size by clicking on the different features To change the range of the axes place your mouse on an axis and click right mouse button You can use the graphics in your reports VPFlowScope User Manual Rev 22 February 2011 Appendix E Extra tips for electrical connection and 4 20mA This appendix describes extra option for the output of the VPFlowMate Isolate the current output 12 24 Volt 4 20 to remote input Isolator iy 4 20mA Setting possibilities Default setting Flow from 0 100 20mA 4mA 0 100 Switch configuration 20mA 4mA 0 100 VPFlowScope User Manual Rev 22 February 2011 Showing flow direction in 4 20mA options Fully bi directional 4 mA 100 150 m sec 20 mA 100 150 m sec 20m 20m 100 0 100
14. February 2011 The wizard for making a graphic appears First select the type of graphic you d like am choosing a smooth line graphic Wizard Grafieken Stap 1 van 4 Grafiektype Standaardtypen Aangepaste typen Grafiektype Kolom A E Staaf o ININ Cirkel 22 Spreiding k Vlak Ring Radar Oppervlak 9 Bel Gestapelde lijn Geeft de trend weer van de bijdrage van elke waarde over tijd of categorie n Ingedrukt houden om voorbeeld te bekijken tosoft Excel voorbeeld excel file FE Besand Geerken Beeld Invoegen Opmaak Extra Data Venster Hep WA AK KAR EDF Click next Now select the e data you want to see in the Date i Pressure nem EE graph 151 amur 1201 41 aari sree ooo 7 23 2007 13 01 48 38 5 70437 7 23 2007 13 01 6 70463 455219 854852 7 23 2007 13 01 51 38 5 70463 455219 Z 7 23 2007 13 01 570477 45 5183 7 23 2007 13 01 54 38 3601 5 70489 455155 7 23 2007 13 01 55 37 8282 57054 45 4925 7123 2007 13 01 56 37 62 5 7054 45 4928 7 23 2007 13 01 5 37 9 5 70589 45 4946 7 23 2007 13 01 58 38 5 70589 45 4903 7 23 2007 13 01 58 38 570602 45 4901 7 23 2007 13 02 00 38 07 5 7082 45 484 7 23 2007 13 02 07024 57062 45 484 7523 2007 13 02 02 9474 5 70655 45 4963 7 23 2007 13 02 5 70641 45 4921 7 23 2007 13 02 04 6 70628 45 4924 7 23 2007 13 02 03 570645
15. Firmware version 1 15 0 Pressure 16 bar Calendar Miscellanious Production date 2 July 2008 Calibration date 28 Apr 2009 Gas type Maintenance date 30j June 201 1 In the right corner below you can see the connection status of your VPFlowScope This should indicate connected and be green When it is red and disconnected please check if you have wired and connected the VPFlowScope correctly You can also see in the right corner below which units you have selected SI Units here The VPScope1 is immediately selected and in Details information of the VPFlowScope is shown In the status tab the information about the VPFlowScope appears the serial number last calibration date advised service date etc VPFlowScope User Manual Rev 22 February 2011 In the installation tab you can configure the VPFlowScope e g enter the tube diameter Always click on Store in the right corner below to store the configurations in the VPFlowScope Store also synchronizes the clock of the VPFlowScope to your PC WPStudig Sie Opbers Exporter Datei Cam Port COMI E west 5 Commuracat an 4 2I xp Baudet 2100 x A ma om comb 1 v Part n 5 te m 5J 5 Modbus Meaceleniocs Hardw r adcress 3 L asset totalzer counter Integer mutpher 10 Erearurmort Tuba diaTekb r 55 9 m n The demater must be smeler Mian 1016mm anc bigger thay 25mm Sto
16. Press enter You can only press enter at the end of the line The tube diameter can also be entered by the software which will be shown in the next chapter Display defaults The display shows real time information Other units like flow in sfps scfm Mass flow m sec pressure in psi etc are standard Pressure bar available in the display Go to Temperature degrees Celsius chapter 4 to see how you can The sensor measures once per second change the settings in the display More information on mass flow can be found in appendix C Now your VPFlowScope is completely installed and ready for use VPFlowScope User Manual Rev 22 February 2011 3 4 Step 4A Real time read out with the VPStudio software Important note Only use your mouse in the VPStudio software Do not use the arrows of your keyboard 90 220V Step 4A 1 Install VPStudio software Insert the CD ROM delivered with you VPFlowScope start kit Install VPStudio by clicking the vpstudio msi file and follow the installation steps All necessary drivers for later on can be found in the program folder of VP Studio on your computer subfolder Drivers Step 4A 2 Install the USB driver Connect the R485 USB converter to the interface split box see picture on the side After inserting the RS485 USB connector in the PC the computer will recognize the USB converter and it will install the driver You can also find the driver files on the CD ROM which is de
17. ata logger memory 3 Sensor module i contains the flow pressure and 4 temperature sensor 4 Probe shaft 0 5 5 Multi sensor Display module The keypad provides access to the VPFlowScope s most used functions For advanced functions the VP Studio configuration software is used The three line display is equipped with an automatic back light Description 1 Menu Enter button 2 Escape Record button 3 Up Down arrows In the menu all functions are controlled as follows Menu To go to the display menu Enter To enter values or move cursor to right Esc Up one level or move cursor to left Stop data logging Rec When you are not in the menu press Rec to start data logging Down arrow Move down in the menu or lower value Up arrow Move up in the menu or higher value VPFlowScope User Manual Rev 22 February 2011 3 Getting started Step by step In this chapter the usage of the VPFlowScope is explained step by step We show the installation and use with the interface split box and RS485 USB converter This is the plug and play solution as delivered in the VPFlowScope start kit Step 1 to 3 show basic installation in the pipe line and electrical installation Step 4A shows usage of the VPFlowScope with direct read out in the VPStudio software Step 4B presents usage of the data logger 3 1 Step 1 Put together the VPFlowScope Connect the display to the VPFlowScope sensor module Make sure t
18. ata of each session fold out Display in the explorer field picture and subsequently DAQ Sessions Select one session and acquire the retrieved data by clicking right mouse button VPFlowScope User Manual Rev 22 February 2011 Acquire A dialog appears which tells the time to acquire the session picture below on the right Depending on the amount of data this can take several seconds till minutes Any time you can abort the acquiring in this case the data acquired so far is shown Explorer a vpstudio Com Port Nr COM7 ey F ypscopet a TTT TT T ke E DAG Sessions ae E Session Ez Sessun 3 Ee Sessioni Acquiring session 00 00 09 With the scroll beam picture you can scroll through the session day by day Again you can change the graph settings and export the data as with Real time data VpStudio Elle Options Tools Help Explorer Details Com Port Nr COM IP vpscopet Total m n if Real time data E 00003208 5 lt Display dg DAQ Sessions E Session 1 R Flow mn sec Session 2 E Session 3 4 90 E Session 6 7 32 23 53 R J 29 3uly 2010 29 uly 2010 QULA Schedule your log session You can start your log session by pressing Rec on the display However sometimes you want to start at a specific date en time in the future With the scheduler you can pre set your recording Go to the tab Sche
19. ct to improvement VPInstruments offers software and firmware releases Please visit www vpinstruments com downloads for details Feedback leads to product improvement Please share your experience with us as we are continuously improving our products in our commitment to quality reliability and ease of use Keep the above mentioned issues in mind and we are confident that you will enjoy using our products over their complete lifetime VPFlowScope User Manual Rev 22 February 2011 VPFlowScope User Manual Rev 22 February 2011 Contents CR EEA 5 1 PUTO L En 7 FOGG OV b aa 9 3 Getting started Step by step e 10 3 1 Step 1 Put together the VPFlovvScoPpe kk kek kk KK KK K KK KK KA KK KA KA 10 3 2 Step 2 Install the VPFlowScope in the 10 3 3 Step 3 Connecting the cables ii 15 3 4 Step 4A Real time read out with the VPStudio software 16 3 5 Step 4B Log and read out data log SESSIONS kk kk kk KK KK KK 19 A DISPLAY 21 2 laze SOWAT ira 23 Oel 23 2 onlieCioh c a anti 23 5 3 VPFlowScope settings and basic 9 23 577 101 26 5 5 Display and data logger settings kK KK KAK KK KK KK AK
20. ction For a one to one connection with a PLC or a different type of RS485 converter please see the wiring scheme below When short wiring is used a termination resistor is not needed For longer wires gt 10m please read RS485 related literature which is referred to in chapter 5 2 5 The ground common should be connected to the readout device so you will need three wires to establish the connection There is some confusion about A and B in the RS485 standard If you experience communication problems you should swap the A and B wire to see if this is the cause Shielded cable M12 connector e lout RS485 A 6 Shielded cable preferable twisted pair RS485 B GND 5485 A 6 E Place close to last Q Split cable in shielded 7 device in RS485 bus unction box RS485 B VPFlowScope User Manual Rev 22 February 2011 6 2 5 Advanced use RS485 Networks networks is needed Please familiarize yourself with the RS485 standard For longer distances and network connections in depth knowledge about RS485 RS422 Useful literature links www modbus org for information about networking multiple sensors on a bus www bb elec com a manufacturer or RS
21. culated Note that if you export measurement data the totalizer is calculated from the actual flow and the interval This totalizer can deviate if the data logger interval is slow compared to the fluctuations in air demand The actual totalizer is shown real time on the display 5 5 Display and data logger settings Select Display to see the display information File Options Tools Help and to configure the data logger In the status tab you can find the firmware version and production date see picture on the right In the installation tab DAQ Parameters you can set the intervals of the three parameters for a DAQ log session for flow pressure and temperature The numbers correspond with minutes seconds VPFlowScope User Manual Explorar Com Port Nr COM cr VP3copel in Rea tme data E Display Details xan Status Installation DAQ Sessions Schedule Session Information Serial number 5200295 Frinware yerson 1 15 0 Calendar Production date 13 Aget 201 Rev 22 February 2011 VPFlowScope logging capacity Details Interval Days ______ Months Status Installation DAQ Sessions Scheduler Session 1 Sec 2 DAQ Parameters Custorn units Factor Base unit Label Flow interval 00 05 35 3147 ma 0 1200 manih Euro Pressure interval 00 05 0 1000 SCFM USD Temperature interval 00 05 4 0 0000 The measurements are real time measurements at that moment S
22. d uolpuasul y desy UO1 D P1SU opd ups up sp UMOYS s did sul S40449 4 PUD MDA JO UOI OUD dx9 JO UOID USLUNDOPp DOIUYOS s 2 UOINPIJPJSUI DUI dO 40 SSUISPIND sup S9OUDI9 O 013039 S9 ON Rev 22 February 2011 VPFlowScope User Manual Appendix B Electrical installation The VPFlowScope complies with the CE requirements as stated in the CE declaration CE compliance can only be achieved when grounding and shielding directions are followed and proper cables and connector assemblies are used Electrical connection guidelines UL 508 Listing for USA amp Canada The VPFlowScope is intended to be used with a Class 2 power source or Class 2 transformer in accordance with UL1310 or UL1585 As an alternative a LVLC UL us Low Voltage Limited Current power source with the following properties can be used LISTED 14AZ IND CONT EQ The device shall be used with a suitable isolating source such that the maximum open circuit voltage potential available to the product is not more than 24 V DC and the current is limited to a value not exceeding 8 amperes measured after 1 minute of operation A fuse in accordance with the UL248 series and rated max 4A shall be installed in the 24V DC power supply to the device In order to limit the available current Electrical connection guidelines general remarks Make sure that the following conditions are met For portable non c
23. duler Session Enter Start date gm and time and End date and time Press r ss mos Help Store to store this in the VPFlowScope dR ones SP vel Status Installation DAQ Sessions Scheduler Session You can always end a session by pressing 4 erd Esc on the display even when you are in the middle of your scheduled log session When you have already started a recording tho Spy of your Topa ak naa tO with the display the scheduler determines still the end date and time Start date amp time 29fFuly 2010 12 07 57 End date amp time 30 August 2010 12 08 02 AM VPFlowScope User Manual Rev 22 February 2011 6 Electrical connections The VPFlowScope provides a 4 20 mA output and a RS485 output All signals are present in the M12 connector An overview of the connections is given below uz ayy Tip Use a shielded cable of good quality Connect shield to safety VVhite ground on one point b Black Pin description of the display module connector see appendix G 6 1 Using the 4 20 mA output The 4 20mA output is an active non isolated linearized output Be aware that you need the interface box with power supply Hardware requirements and USB RS485 converter to VPFlowScope configure the VPFlowScope with Cable M12 5 or 10 m 16 4 or 32 84 VP Studio Read out device multimeter plc centralized data acquisition Electrical scheme The cur
24. e this with your end user so they can take this uncertainty into account VPFlowScope User Manual Rev 22 February 2011 Prepare the installation The VPFlowScope can be inserted through a welding tap with internal 1 2 inch thread see picture or through a hot tap saddle see picture A hot tap saddle can be installed under pressurized conditions If possible place a 1 2 inch full bore ball valve or a 3 4 inch ball valve so that the VPFlowScope insertion probe can be inserted and retracted under pressurized conditions The installation Insertion depth The VPFlowScope has to be installed into the pipe line through a ball valve Generally the insertion depth of the VPFlowScope is 0 5 times the inner pipe diameter where the bottom of the sensor must be in the middle of the pipe see picture Note that in small tubes wrong insertion depth can result in large measurement errors because of the blockage effect The insertion depth for pipe diameters between DN25 and DN65 is different In smaller pipes the VPFlowScope has to be inserted almost completely or else the temperature sensor of the VPFlowScope itself is outside the FLOW gt flow path In the picture on the right the insertion depth is visualised for smaller pipe diameters The VPFlowScope is shaped to make alignment with the flow 5 mm direction easy Alignment by the Bucine D eye is sufficient See also the 25 ft Bn cates 5 mm technical dra
25. easy to calculate This is why we have performed numerous tests to provide the best possible correction factors The VPFlowScope is pre programmed with these correction factors and can be used down to 1 inch pipe sizes The VPFlowScope automatically chooses the right correction factor for each diameter You only have to program the tube diameter The blockage effect will influence the maximum possible measurement range of your VPFlowScope For your convenience we have created a table for most common diameters in which you can see the maximum range of the VPFlowScope In the table we also stated the expected measurement uncertainty This uncertainty applies for the ideal installation conditions Note that in small tubes the probe installation becomes more critical and therefore the measurement uncertainty is higher In very large tubes the flow profile is less predictable and it also depends on the tube roughness In these cases the measurement uncertainty is also higher than under calibration conditions Diameter Insertion Flow range in m hr Field depth rounded down to measurement 5 m yhr uncertainty 2 705 3 3 40 5 5 5 VPFlowScope User Manual Rev 22 February 2011 Appendix D Basic graphs in Excel Open your file with Excel E icrosoft Excel voorbeeld excel file Invoegen a Extra Data venster Help r 1 Date Time Flow m sec Pressure bar Temperature degC Totalizer MSN 7 4515
26. eek select in the menu bar Data Text to fd 3 7 5 xn columns c valideren ir low m sec Pressure bar Temperature d 2 12007 07 24 13 01 46 38 6314 5 70385 45 5536 8548521 I i 3 07 23 13 01 47 38 3287 5 70385 Samenvoegen A 7 77 57 Separated and E i 007 2 MELO 48 38 2319 5 70437 Externe gegevens importeren gt click Next Subsequently select amp m Semicolon and click Finish see picture jaar 07 07 Zi re below Now the data is divided over oa columns ca Wizard Tekst naar kolommen Stap 2 van 3 In dit venster kunt u opgeven welke scheidinastekens voorkomen in uw tekst In het voorbeeld kunt u zien welke invloed uw instellingen hebben op de tekst Scheidingstekens Vr meris Tlkemna en Ha Isis Tekstinditator vi C Dubbele scheidingstekens als n beschouwen Yoorbeeld van gegevens Flow m sec Pressure bar emperature degC 2007 07 23 2007 07 23 2007 07 23 2007 07 23 Select in the menu bar Add Graphic FEB Microsoft Excel voorbeeld excel file Extra Data Venster Help Rijen Kolommen Date Time I emperatu Totalizer m n 7 23 2007 13 01 46 455536 854852 7 23 2007 13 01 47 7143712007 13 01 48 7 23 2007 13 01 50 TUR 45 5219 854852 7 23 2007 13 01 51 38 5686 570463 45 5219 VPFlowScope User Manual Rev 22
27. ep1 to 3 to connect and install your VPFlowScope Step 4B 1 Data logging After installation and configuration of the pipe diameter you can start logging right a way It is useful to synchronize the date and time with your PC VPFlowScope Store data via VPStudio Press Rec Esc on the keypad confirm and the VPFlowScope starts recording In the third line is alternating between the recording www vpinsirumenta com state S and a chosen parameter The recording mode is shown by a blinking dot see picture on the right During logging some menu functions are locked to prevent disruption of the log session VPFlowScope User Manual Rev 22 February 2011 The data logger contains 500 000 points When purchased the data logger is set at recording once per 5 seconds You can change the interval settings with VP Studio See chapter 5 To stop recording push the same button Esc Rec and confirm The blinking dot disappears With the VPStudio software you can read out your logged DAQ sessions You have to connect the VPFlowScope to your computer Step 4B 2 Read out log file Repeat steps 4A 1 to 4A 4 to hook up the VPFlowScope to your computer and to the VPStudio software Fold out subfolder Display and DAQ Session of your VPFlowScope in the explorer field your log sessions appear Select the session you want to read out move the mouse over the graph and press right mouse button Acquire to start ac
28. er 6 Please read first the basic installation in chapter 3 carefully Finally chapter 7 shows how you can service and maintain your VPFlowScope best It is advised to get familiar with the VPFlowScope and its functionalities before using it in the field so you fully benefit from this tool We advise to hook up the VPFlowScope first and see how the display works and where you can find the different features In the latest version of the VPFlowScope usage is even easier Also we have extended it with new possibilities You can now use standardized Imperial Units besides SI Units PC mode is now done automatically so this makes configuration and read out very easy We have also implemented a new functionality that you can pre program your data log session We wish you a lot of fun with discovering these new features Check the packaging box for any inconsistencies Should there be any shipping damage notify the local carrier At the same time a report should be submitted to Van Putten Instruments BV PO BOX 151 2600 AD DELFT The Netherlands VPFlowScope User Manual Rev 22 February 2011 VPFlowScope User Manual Rev 22 February 2011 2 Product overview The VPFlowScope measures mass flow temperature and pressure simultaneously The LCD display provides real time information With the built in data logger you can make recordings for a certain period of time Description 1 Fixation screvv 2 2 Display module m with d
29. from 100 to 100 An example 4mA is 150m sec and 20mA 150mn sec 12mA is then 0m sec See more examples in appendix E Reset totalizer counter Modbus The VPFlowScope supports Modbus RTU You can change the sensor s address number Take the VPFlowScope of the Modbus network when you need to configure it as other devices will interfere with VPStudio commands More about the usage of Modbus and the Modbus command set is described in chapter 6 2 VPFlowScope User Manual Rev 22 February 2011 Miscellaneous Reset the totalizer counter by selecting the box and press Store Environment Here you can change the pipe diameter In SI Units the diameter is set in mm In Imperial Units you can set the diameter in inch Press Store to program Store Always click Store to store the configurations in your VPFlowScope As previous mentioned Store action also synchronizes the clock of your VPFlowScope to your PC Graph settings The settings of the graphs in both Real time data and Display gt DAQ sessions are automatically the graphs will auto scale according to the data You can change the lay out of the graphs to a more Suitable manner if desired During data acquisition press right mouse button to find the menu for graph settings and the export function see pictures below You can fix the axis manually and you can display markers Below the settings of the third graph are adjusted
30. hat the display slides completely over the O ring seal Apply some O ring grease if required Gently fix the screw on top of the display see picture 3 2 Step 2 Install the VPFlowScope in the pipe First select the right installation point In the field additional errors are typically introduced Sources of error can be installation effects unknown flow profiles swirls pressure effects temperature effects humidity effects oscillations in the flow The installation point is therefore crucial for the right measurements To ensure the highest possible accuracy of flow measurement the installation and piping instructions must be followed carefully Therefore read this paragraph carefully Take into account ONLY for dry air Never mount the VPFlowScope directly in the discharge of a compressor The high humidity and condensation will cause misreading e When installing the instrument choose a site which is accessible which allows ease of wiring and maintenance and which allows you to still read and access the display if possible e Meet the specifications of the VPFlowScope When the specifications are not met for instance the pressure or temperature level is too high this will cause inaccurate measurement and can even damage your flow meter e Do not apply mechanical stress on the sensor head Avoid e Excessive heat Potential water damage Avoid areas of high humidity and avoid dripping Be aware that the
31. he Modbus RTU compliant command set of the VPFlowScope You can download this program from the internet Use a search engine to find it Hardware requirements VPFlowScope Split box power supply USB to RS485 converter Instructions Connect everything as described in Chapter 3 Open VP Studio and change the Modbus address if desired Close VP Studio Open a command prompt via the start menu of your pc Start execute program gt gt type cmd and press enter Go to the directory where you have placed modpoll exe NT Basic command syntax modpoll a address r register number t data type b baudrate p parity COM Port type modpoll h for help Examples The following examples can be tried out to test the Modbus communication read flow value modpoll a 9 r 19 t 4 b 38400 p none COM3 gt gt Answer example 1167 Divide by 100 Flow 11 67 cfm read pressure value modpoll a 9 r 33 t 4 b 38400 p none COM3 gt gt Answer example 733 Divide by 100 Pressure 7 33 bar read temperature value modpoll a 9 r 65 t 4 b 38400 p none COM3 read totalizer modpoll a 9 r 129 t 4 b 38400 p none COM3 Set multiplier to 100 for these examples Floating point example VPFlowScope User Manual Rev 22 February 2011 Read flow in mn sec from floating point register modpoll m rtu a9 r26 t 4 float b38400 p none 9 Answer 76 811389 6 2 4 Advanced use Do it yourself one on one conne
32. he product is installed correctly Always make sure that upstream length downstream length flow pressure temperature and humidity ranges are within specifications Precision instruments need maintenance Check your flow meter regularly and make sure it remains clean When polluted gently clean the sensor using demineralised water or a light cleaning solvent Precision instruments need regular re calibration The VPFlowMate and VPFlowScope are guaranteed for 24 months when used in clean filtered oil free and dry compressed air When any of these conditions is not met the re calibration interval may become shorter than 24 months VPInstruments offers service contracts which cover a one year re calibration firmware upgrades and minor repairs Not intended for fiscal metering or billing The VPFlowMate and VPFlowScope are not intended for fiscal metering as they can be shifted or turned during operation VPinstruments recommends using in line flow meters or a special welded fixture for these applications Laws on fiscal metering and billing may vary per country or state Do not overestimate the results The practical measurement uncertainty of an insertion probe is 5 Do not expect less than 5 measurement uncertainty from any insertion based measurement as this is physically impossible due to the nature of turbulent pipe flows Our products are not intended to be used as a single means to determine compressor capacity Products are subje
33. ious bar Hardware address 14 2 C Reset totalizer counter Integer multiplier 1000 Environment Tube diameter 55 9 The diameter must be smaller than 1016mm and bigger than 25mm RS485 communication Only change these settings when the VPFlowScope is mounted in a slower network for example a Modbus network running on 9600 bps Hardware address this is the Modbus address and can be set between 1 and 247 Integer multiplier this multiplier is used for the integer registers only see Modbus table Divide the output by this number to get the real floating point value Adapt the value when the actual reading is a very small number or when an extra digit resolution is needed Example flow 32 3 m sec multiplier 10 modbus output on register 16 323 Divide by ten to get 32 3 multiplier 1 flow 32 3 modbus output on register 16 32 4 20mA output The 4 20 mA output can be used to connect the VPFlowScope to a control or central supervision system In most cases this will be permanent installations using the M12 cable for connection instead of the split box You can change the 4 20mA output to indicate different readings The default of the 4 20mA output corresponds with the velocity range in m sec You can change this range and the type of Output See in the picture on the right which parameters are available The flow direction option can be visualised in the 4 20mA for instance setting the flow range
34. isplay a special RS232 cable is needed Instructions on the update procedure can be found in a separate instruction leaflet which is distributed together with the upgrade kit Upgrading is only possible for authorized people at own risk 7 3 Recalibration To keep your VPFlowScope in best shape it needs recalibration The recommended recalibration date can be found in VPStudio when you read out your VPFlowScope Keep close eye on this date We advice annual recalibration 7 4 Service Subscriptions VPInstruments offers several Service Subscriptions Enrolling in the Service Subscription Program helps you get the most out of your measurement equipment We keep your equipment in excellent shape as we offer an annual re calibration on our state of the art calibration equipment With the latest software releases and expert technical support you will save time and money We offer the following programs Standard Service Subscription annual re calibration of your flow meter and up to 5 years warranty extension Full Service Subscription annual exchange of your flow meter No service time Have a fully calibrated flow meter 24 7 365 days a week Improved software performance innovative new product features and technical support helps keep you focused on what matters most for your company Benefits Annual calibrated and cleaned instruments Warranty extension Software and firmware updates Live support and e mail suppor
35. livered with the USB converter Note that every time you put the USB converter in a different port the computer needs to install the driver again USB computer Step 4A 3 Set units Open VPStudio Always plug in the RS485 USB converter first and then start Up VP Studio When you open VPStudio for the The Local setting units of YPStudio is set to International System of units first time a pop up appears SI Units and Imperial Units are SO ve erie chanas tto Imperial unts choose Imperial both implemented in VPStudio Change here to Imperial Units IF you want to change it in the future go to Menu of PStudio gt Options gt when that is your preference Click OK to go VPStudio You Setting Units and choose the local setting units that you want can always change the units in the menu of VPStudio Options gt Setting Units V Local Setting Units Dialog 4 SI Imperial Step 4A 4 VPStudio gt Add new device To read out the VPFlowScope and to configure the device you first have to create your VP FlowScope in the software Click right mouse button in the explorer field and click New device The Device properties window appears Details Welcome to VPStudio lt Use the context right click menu in the Explorer ta create a new or modify an existing VPFlowScope object Simply click on a VPFlowScope object in the Explorer to configure Click on the icon to expand the possibilities of the VPFlowScope objec
36. meter Adjust the safety line and strap to keep the VPFlowScope in place Keep in mind to align the VPFlowScope with the flow direction VPFlowScope User Manual dus e 3 Insert the VPFlowScope probe Hook the safety line up in the 4 Mount the safety line ring of the VPFlowScope For extra safety you can add a luggage strap like for Suitcases FLOW fo 7 Push the probe in till it hits the bottom of the pipe Now place another mark on the probe 9 Gently tighten the compression fitting Do not over tighten to prevent damage to the probe Pull the probe to check if the compression fitting is tight enough Rev 22 February 2011 10 Now your VPFlowScope is installed 3 3 Step 3 Connecting the cables For power supply connect the VPFlowScope via the interface split box to the 12V adapter See Appendix B for Electrical guidelines 90 240VAC adapter Thanks to the index pins the connector fits only one way The VPFlowScope starts up and immediately after start up you can see in the display the firmware version of the display itself One more step is required for configuration The VPFlowScope needs to know the inner tube diameter to display volumetric flow values Programming the inner tube diameter in the display 1 Goto Menu gt settings gt gt tube diameter 2 Use the up and down arrow to change the digit and use enter escape to move the cursor right or left 3
37. napshots and not an average over the interval In Custom units you can create your own unit for instance if you would like to see costs In the picture above we have created two units Euro and USD As example we stated that every m hr costs 0 12 Euro and a SCFM costs 0 1 USD of course these are not real numbers Custom units are only visible real time in the display itself When acquiring real time information and DAQ sessions in VP Studio the three parameters are always displayed in the original SI units When you store data in the display the display will automatically go in PC Mode This is only during short time for storing Afterwards the display is available again Details DAQ sessions Details about each DAG session can be found in the DAQ Sessions tab see picture below Information about the start date tube diameter and the intervals are displayed The displayed totalizer is the start totalizer at the beginning of the DAQ session to save memory only the start totalizer is stored The memory usage of the session is also shown Options Tools Help Explorer jetats Status Instalavon DAQ Sassoni Scheduler Session 1 vescopel istalava adder Ses essian ml orator DAO Sessions Session start 25 Jul 2010 05 40 12 Tubo dameter 55 56 mm Flow interval 00 6 Temperature irterya MOL mm ss Memory usg if 2 Store stunts ES Reading out data logger To read out the d
38. ormal cubic meter This enables you to use the VPFlowScope in various pipe diameters The VPFlowScope only needs to know the inner tube diameter to calculate the mass flow rate Working principle of the VPFlowScope The VPFlowScope s thermal sensor Working principle measures mass flow The sensor response flow signal is directly related to the mass flow rate and can be described by the following n gt ig formula b Heat emission Vout k v Ts Tg i 333 sensor Vout output voltage k sensor geometrical constant thermal conductivity of the gas Tsensor density of the gas v actual velocity in m sec Ts sensor temperature et Tg gas temperature Heating VPFlowScope User Manual Rev 22 February 2011 Pipe diameter vs flow range Insertion mass flow meters can be used in various pipe sizes This is a great advantage as you can use one probe for many applications and installation is very easy The VPFlowScope can be used from 1 inch and up Insertion flow meters are very flexible to use and require little installation labour However they are spot measurement devices and results are dependent of the actual flow profile and the blockage effect The probe blocks a part of the tube area which increases the local velocity around the probe This is why insertion probes need a correction factor We call this the Block factor This correction factor is based upon complex physical behaviour which is not
39. pes Flow mn sec Flow mnfsec Reference Temperature 273 15K 022 DIN 1343 Pressure bar Temperature Tatalizer Advanced wanen le TE I Pld 2 0 055 L Split files per day Average data per 1 5 minutes SEL T cane Choose a name and a place for your export file click The Export Options dialog appears Here you can choose which data to export and in what matter You can select the reference conditions for your application The flow data in your export file will be calculated for your application with the right reference conditions There are three common reference conditions that you can choose from A Export Options Export types Expert types Flow imnsec wi Flow imn sec Reference Temperature an ithe Reference Temperature l273 15K 0 C D N 1343 ei n min 274 ek LOSE DIN 1343 Pressure pS Pressure 286 18k 15 C 150 2533 oF Temperature Z Temperature eo az ZO Totalizer m n Totalizer mn vi In appendix D is explained how you can generate graphics with Excel for further processing and for generating reports 3 5 Step 4B Log and read out data log sessions The data logger of the VPFlowScope is located in the display This makes the display interchangeable You can connect every display with every VPFlowScope sensor module Follow st
40. quisition The time to acquire all data depends on the amount of logged data it can vary between seconds and a couple of minutes As with real time information you can change the graph lay out with right mouse click To export the file click right mouse and export See step 4A 6 on the previous page Optens Toos Help Explorer Datade Com Port COM Tota min time dota 00083203 sons Flow mn sec 4 87 7 32 23 56 29134 2010 z h 2010 2 2010 ters Deleting your Sessions be done using the keypads on the display Go to Menu DAQ Sessions gt gt Delete all sessions VPFlowScope User Manual Rev 22 February 2011 4 Display In the display you can set some basic configurations Minimal configurations you can do using the keypad without VPStudio So you do not always need VPStudio The data logger is present in the display Controls In the menu all functions are controlled as follows Menu To go to the display menu Enter To enter values or move cursor to right Esc Up one level or move cursor to left Rec When you are not in the menu press Rec to start data logging Down arrow Move down in the menu or lower value Up arrow Move up in the menu or higher value Note During recording some functions are disabled Menu structure and functionalities Menu level Display text Description Start up screen Shows the firmware
41. re Clik cn daly to reed sett sies 1 Step 4A 5 VPStudio real time information Open the VPFlowScope folder in the explorer field by clicking the in front of your VPFlowScope The subfolders Real time data and Display appear Click on Real time data Move the mouse over the graph and press right mouse button gt Acquire to start acquisition Status turns yellow when communicating with your flow meter The sample rate is fixed and is 1 sample sec every second a measurement is taken The data in VP Studio is refreshed every 5 seconds During real time measurement the right mouse button gives you access to graph functions and data export function See chapter VP Studio oF us Tika ayy Flow mn sec Fa r VPSconed Total m r RA 0005305 Flow mn sec 2093 00 4 x So 7 E H ki T r 207 00 32 UE CY z 2 1 O SA Y eee i 207 00 i E Qi P VAR E SI a atei ___ 7 di EE 37 24 Rca AP T To K amp ui 7 32 28 97 Zeuk 2004 zat abn 2e nl nnn VPFlowScope User Manual Rev 22 February 2011 Step 4A 6 Export data to csv file The real time information read in can be exported to a csv file at any moment for further data processing Click right mouse button in the details field Export picture below Export Options Export ty
42. re vvill be stored in a separate DAQ session VPFlowScope User Manual Rev 22 February 2011 5 VPStudio Software In this chapter more functionalities of the VPStudio software and the VPFlowScope configurations are presented For basic settings and functionalities please also read chapter 3 Important note Only use your mouse in the VPStudio software Do not use the arrows of your keyboard 5 1 General At initial use every VPFlowScope needs to be added in VPStudio in the explorer field See step 4A 4 You can install more than one VPFlowScope in VPStudio each one has to be connected with an individual RS485 USB converter to your computer You can read out only one at a time Internal clock synchronization Every time that the settings of your VPFlowScope are changed in VPStudio Store button its internal clock will synchronize with the clock of the computer To synchronize the clock it is important that you are not in the menu of the display of the VPFlowScope itself Menu In the Menu of VPStudio you can find a couple of basic settings Units Go to Options gt Setting Units to change the units between SI and Imperial CSV Studio Go you can go directly to our program CSV Studio When you have exported data and you want to change units for instance change the flow from m hr to scfm you can do this by using CSV Studio SI Units and Imperial Units For VPFlowScopes with a firmware version lower than 1 0 15 you
43. rent meter is placed in between the current output and the power supply ground You can also use a digital multimeter to test the current output M12 connector Shielded cable Power supply lout RS485 A RS485 B The factory default setting of the 4 20mA is normalized velocity 4mA corresponds with 0 and 20mA corresponds with 100 of the full scale 150 m sec With VPStudio you can select which parameter you want to read out flow pressure or temperature and the corresponding unit See chapter 5 for more information VPFlowScope User Manual Rev 22 February 2011 You can hook up the 4 20mA output to an existing control or central supervision system for read out or you can use e g a digital multi meter to test the current output locally See tips and tricks for the 4 20mA connection in appendix E 6 2 Using Modbus 6 2 1 Introduction to Modbus For new users a complete introduction on the Modbus standard can be found on www modbus org document Modbus over serial line V1 02 pdf which can be downloaded from their website We strongly recommend to download and read this information carefully 6 2 2 Holding registers firmware revision 1 15 0 and up The actual measurement data is placed in holding registers To read out data you will need to use the corresponding holding register See the
44. revision of the display Menu gt 1 Settings gt gt 1 Tube diameter Change tube diameter gt gt 2 Display Change display parameters gt gt gt Choose parameter for display Choose line 1 line 2 line 3 line 1 line 2 and line 3 Parameters available Flow F mn sec m n hr n min SCFM m n min S DS Pressure P bar psi Temperature T degC degF VPFlowScope User Manual Rev 22 February 2011 gt gt 3 Date amp time 2 Profiles gt gt Activate 3 DAQ sessions gt gt New session gt gt Delete all 4 Advanced gt gt Reset Display feedback Display status description Sensor module is connected Sensor module is not connected Recording mode Service required Flow direction The VPFlowScope can measure flow direction This is an extra feature that you have to order with your VPFlowScope The flow direction is visible in the display The backwards flow is shown with a minus before the amount e g 347 m hr The flow direction is also taken in the totalizer by adding and retracting flow depending on the flow direction Power failure and your data logging When there is a power failure the VPFlowScope continues data logging after re stating the power O 5 T 4 pd si Totalizer m n SCF Change sensor date and time Change sensor address Disabled Start nevv recording Deletes all recordings Resets the display The data after the povver failu
45. ritical applications a switched mode 12 V DC 1A power adapter may be used Switched mode power supplies that are of poor quality might affect the accuracy VPFlowScope User Manual Rev 22 February 2011 Appendix C Mass flow and volume flow Definition of mass flow Mass flow rate is the mass of substance which passes through a given surface per unit time Its unit is mass divided by time This means kilogram per second in SI units and slug per second or pound per second in US customary units Mass flow rate can be calculated from the density of the substance the cross sectional area through which the substance is flowing and its velocity relative to the area of interest m v A where 77 mass flow rate density v velocity A flow area Definition of a Normal cubic meter m A normal cubic meter is used to relate mass flow to a volumetric unit A normal cubic meter is the volume of 1 m of air at temperature of 0C and pressure of 1013 25 mbar abs The mass of 1 m of air is 1293 gram The normal cubic meter is officially indicated with a subscript n behind the volumetric unit The indication Nm is not correct Other common normal conditions e 20 C reference FAD See ISO 1217 15 reference See DIN 1533 VPFlowScope and mass flow The VPFlowScope insertion probe is calibrated in normal meters per second m sec A normal meter per second is a meter per second under the same reference conditions as a n
46. t Device properties Device properties Connections Device Description Type Type Serial Port see connection tab to get your port number Baudrate Stopbits Parity Cancel VPFlowScope User Manual Rev 22 February 2011 Write in the Description field a name of your choosing VPScope1 here Select VPFlowScope in the drop down menu of Type You have to define the right port number to which your VPFlowScope is connected to the PC Go to the Connections tab to see which port number correspond with the VPFlowScope Here you can see there is a VPFlowScope in COM port 7 Go back to the Device properties tab and type in 7 at port Keep the Baudrate and other communication settings default Device properties zi U Device properties Device properties Connections Device properties Connections Comportnr Type Device Serial re Status Description Device Con VPFloviseope Unknown Device is turned off or baudRate wrong Unknown Description YPScopet Type VPFlowScope VPFlowMake Type G Serial Port see connection tab to get your port number Baudrate Stopbits Parky Click OK to confirm The VPScope 1 is added in the explorer field PStudio Ele Options Took Hep Explore Details Com Port COM fante es Status Installabon Information Specffications Serlal number 5100153 Flow 0 150 mn sec Type Insertion probe Temperature 60 C
47. t by our skilled technicians Consult your sales agent for information about our service program VPFlowScope User Manual Rev 22 February 2011 8 Specifications Specifications are subject to change as we are continuously improving our products Please contact us to obtain the latest specification sheet Please always check the label of your product for the specifications Flow sensor Flow ranges Accuracy Reference conditions Gases Gas temperature Pressure sensor Range Accuracy Temperature sensor Range Accuracy Data outputs Digital Analog Display data logger Technology Back light Data logger Mechanical Probe length Probe diameter Process connection Pressure rating Protection grade VPFlowScope User Manual 0 0 5 150 m sec See ID label on your VPFlowScope 0 1 7 500 spfs 2 of reading under calibration conditions Recommended pipe diameter 40mm 1 5 inch and up see app A 0C 1013 25 mbar DIN1343 322 14 65 psi Compressed air nitrogen inert gasses 95 non condensing gases 0 60 extended 0 100C See ID label 32 140F extended 32 212 0 16 bar gage 0 232 psi gage 1 5 FSS 0 60 32 140F Temperature compensated 0 60C 32 140T Extended possibility 0 100 32 212 F 1 from 10 m sec and up At zero flow conditions temperature reading increases due to self heating by the flow sensor RS485 MODBUS
48. wing in appendix A 4 A Be z for right installation Dv 0 5 D naz n s 80 mm Determining the inner pipe diameter The inner diameter can be calculated by subtracting two times the wall thickness of the outer pipe diameter The pipe diameter is obtained by measuring the perimeter of the tube and dividing this by Pi 3 14 An ultrasonic thickness gauge can be used for exact measurement of the wall thickness In a de pressurized pipe the internal diameter can be measured using a calliper gauge Follow the next steps for installation of the VPFlowScope insertion probes in the pipeline SAFETY FIRST START WITH MOUNTING THE SAFETY LINE The VPFlowScope is mounted with a 1 2 inch compression fitting The probe is sealed with a Teflon ferrule instead of a stainless steel ferrule Teflon may become slippery The safety line will keep the sensor secure when it accidentally moves out of the compression fitting NEVER over tight the fitting because it might damage the sensor tube VPFlowScope User Manual Rev 22 February 2011 1 Insert the compression fitting in the welding tap Use Teflon tape or liquid sealant 2 Keep the ball valve closed 5 Place a mark on the probe to identify the place where it is safe to close the ball valve when retrieving the VPFlowScope 6 Open the ball valve and slowly push the VPFlowScope probe completely in 8 Retrieve the probe half the pipe dia
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