vse VSI 0.04 User manual

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 



 
 
 

 
 


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Table of Contents
 

Importantbasicinformation3
Generalfunctiondescriptionofowmeter4
Generaldescription4
Flowmeterselection4
DeclarationofConformity4
Generalconditionsforinitialstart-up4
Maximumoperatingpressure5
StatementtoEU-Directive97/23/EG,Pressurizeddevices5
Flowmeterrange6
Assemblyoftheowmeter6
Cleaningandushingofpipelinesbeforeinitialstart-up                             7
Filteringofliquid7
Flowmeterswithhighdenitionofvolumemeasurement8
Technicalspecicationsofpreamplier                                          13
Plugassignmentofpreamplier14
Maintenance14
Sendingbackofrepairsandsampledevices15
TechnicalspecicationsVSI002/IPF–VSI4/IPF                                15
FlowresponsecurvesVSI002–VSI416
DimensionsVSI002–VSI417
Dimensions,subplatesAP02-418
TechnicalspecicationsVSI10/IPF19
FlowresponsecurvesVSI1019
DimensionsVSI1020
Dimensions,subplateAPG1020
Typekey21
Plugassignment22
Preamplier-blockwiringdiagram22
Connectiondiagram23
EC-DeclarationofConformity23

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Important basic information
Dear customer, dear user,
These installation and operating instructions should provide you with the information you need to properly install and commission
the ow meter. The installation, commissioning and testing are to be performed by trained and qualied personnel only. These ope-
rating instructions must be read and applied carefully to ensure proper, trouble-free and safe operation of the ow meter. VSE is not
liable for any damage incurred resulting from not complying with the instructions in this operating instruction. It is not permitted in
any case to open the device.
These operating instructions for the ow meters of the series ”VSI High Denition Flow Meter” from VSE must be stored, so that
they can be read by the group of authorized personnel at any time. Chapters may not be taken of these instructions at any time. A
missing operating instructions manual or missing pages must be replaced immediately. VSE can supply you with new instructions or
you can download the operating instructions from the internet (www.vse-ow.com). The operating instructions must be given to each
subsequent user of this product.
Legal information
This document is not managed by an updating service of VSE Volumentechnik GmbH.
Changes to this document may be made without notice.
VSE Volumentechnik GmbH does not provide any implicit guarantees of commercial qualities and suitability for a specic purpose.
If the device has been opened, modied or incorrectly connected to the electrical circuits, the guarantee of VSE Volumentechnik
GmbH for safe operation is void. VSE Volumentechnik GmbH is not liable in any way for personal injuries or damage to goods
resulting from improper installation or improper operating of the ow meter.
Operating manual–no.: E060024 (E) Date 31st May 2006

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
 Istheowmeter?
 Istheuid?
 Istheuidoristherein?
 Whichdoesthesolidmatterpossessandcanit?
 Doestheuidhaveorother?
 Isitnecessarytoinstallapre-switched?
 Aretheandfreeofassemblyresiduessuchasswarf,weldchips?
 Istheandisitensuredthatcangetintothepipelinesystemfromthetank?
 Istheuidoftenchangedandis?
 Arethepipelinesandtheentiresystemcompletely?
 Whatisbeingused?
 Aretheuidandthecleaningagentcompatiblewiththe?
 Arethefortheuidundergoingmeasurement?
Flowmetersmadebymeasurethevolume
owofliquidsaccordingtothetoothedwheelprincipleApairofverypre-
ciselyadjustedtoothedwheelsinthehousingconstitutesthemeterAsignal
pick-upsystemregistersmeterrotationfreeofcontactandtoothbytooth
Inowmetersofhighresolution(VSI),eachtoothisoutputasamultipleof
digitalpulses,dependingoninterpolationsetting
Thegapswithintheteethofthemeterwheels,formmeterchambersinthe
areas,inwhichtheyarecompletelyenclosedbythehousingwalls;these
chambersdigitaliseliquidowdependingontheirchambervolume
Theliquidowwithinonemeterrotationofatoothdivisionisdividedbythe
setinterpolationfactorThisgivesthevolumemeasurementperpulse(Vm)
andisdenedincm3/pulseItidentiestheconstructionalsizeofaow
meter(egVSI1/16)
• General description
Pleasefollowallinstructionsinthisoperatingmanual;onlythisguarantees
trouble-freeoperationoftheowmetersVSEisnotliableforanydamage
ensuingfromnotfollowingoftheseinstructions
Openingthedevicesduringthetermofguaranteeisonlyauthorisedafter
consultationandapprovalofVSE
• Flow meter selection
         
          





• Declaration of Conformity
Flowmetersofthe“VSI”productlinearetestedfortheirelectromagnetic
compatibilityandinterferencetransmissionintermsofthelawonelectro-
magneticcompatibilityandcorrespondtothelegalprescriptionsenforced
byEMCdirectivesTheymaynotbeoperatedindependentlyandaretobe
connectedviacabletoapowersourceandsupplydigitalelectricsignals
for electronicevaluationA declarationofconformityissubmittedforall
owmeters,whichyoucanrequestifyourequire


          



Allowmetersaretestedaccordingtothevalid,legallyprescribedelectro-
magneticcompatibilitydirectivesEN55011andEN61000andpossess
theCE-certicationTheEC-declarationofconformityistheCE-labelatta-
chedtoallowmeters
• General conditions for initial start-up
Beforeassemblyandbeforeinitialstart-up,youhavetonotethefollowing
propertiesandaspectsofthecorrespondingcharacteristicsofyoursystem,
sothatatrouble-freeandsafeoperationispossible
• General function description of ow meter

5

 Isthelowerthanthemaxpermittedoperatingpressureoftheowmeter?
 Isthe(onowmeter)belowthemaxpermittedfallofpressure?
 Doesanexcessivelyoccurontheowmeteratmaxow(egwithhigherviscosity)?
 Doestheowrangeoftheowmeter(dependingonviscosity)correspondtothe?
 Notethatowrangedecreasesthe!
 Doesthetemperaturerangeoftheowmetercorrespondtotheofthemedium?
 Istheofthepipelinelargeenoughandarethefallsinpressureinthesystemnotexcessive?
 Isthe(supplyandreverseow)correctlyconnectedandleak-proof?
 Hasthesufcientpowertooperatethesystem?
 AblockingowmetercanstopthewholeowIsaprovidedinthesystem?
• Maximum operating pressure
Beforeassembling theow meter,youhave to testthatthemaxopera-
tingpressureofthesystemdoesnotexceedthemaxpermittedoperating
pressureoftheowmeterMeanwhile,observethetoppressuresthatcan
occur,whenoperatingthesystem

 Haveyouselectedtheoptimalowmeterandisthisequippedwiththe?
 Doestheoftheowmetercorrespondtotheprovidedvoltage?
 Isthepowersupplyvoltagesuppliedbythemainsorevaluationdevicesufciently?
  Doestheofthepowersupplyvoltagecorrespondtotherequiredpoweroutput?
 Hastheelectricconnectionbeeninstalledbasedontheenclosed?
 IsthecorrectlyconnectedonbothsidesontheearthconductorPE?
 IsthereabetweentheearthconductorPEontheowmeterandtheearthconductorPEontheevaluationdevice?
 Doesacorrectingleadhavetobelaidtoeliminatethebetweentheowmeterandtheevaluationdevice?
 Istheowmeterconnectedrmlytothe(egviathepipelines)?
 IsthemeterconstructedtobetotheearthconductorPE(egconnectionviahoses)?Ifthisisthecase,themeterhastobeconnected
  withtheearthconductorPE!
 Isthereaofthecableprotectiveshielding(earthconductorPE)viathehousing,ofthe4or5-pinroundplugtothe
  housingoftheowmeter?
  Isthecablelaidfault-freeandtheinstallationsecuredfrominputof?
 Istheoftheconnectioncablermlyscrewedtogetherwiththeplugoftheowmeter?
 Arethewiresonthecorrectlyandproperlyconnected?
 Doestheentiresystemcorrespondtothedirectivesoftheelectromagneticcompatibilitylaws()?
 Havealllocalvalidregulations,,guidelinesandbackgroundconditionsofthe
  beenmaintainedandobserved?
 SystemsthatcanleadtopersonalinjurythroughmalfunctionorfailurearetobeequippedwiththeThefunctioning
  ofthesesafetydevicesistobecheckedatregularintervals
Thefollowingoperatingpressuresarepermitteddependingonowmeter
version:
 Flowmeteringreycastironversion pmax=315bar/4500psi
 Flowmeterinstainlesssteelversion pmax=450bar/6500psi
Important:
Please consult VSE for all operating pressures > 450 bar / 6500 psi and for special versions.
• Statement to EU-Directive 97/23/EG, Pressurized devices
VSEowmeterarepressurizeddevicesaccordingtoarticle1,paragraph
214ofabovementioneddirectiveThereforetheyaresubjecttotheregu-
lationstothisdirective
Accordingtoarticle3,paragraph14,VSEowmetershavetoconform
withthetechnicalrequirementsoftheguidelineTheuidstobemeasured
arebelonginginmostofallcasestotheclass2,denedinarticle9,para-
graph22VSEowmeterdonotreachthelimitvaluesasdenedinarticle
3,paragraph11
ThetechnicalrequirementsforVSEowmetersthereforearelimitedtothe
parts indicated in article 3, paragraph 3 It means the devices have to
be designed and manufactured in conformity with acknowledged engi-
neering, suchas practiced in one of the member states This is herewith
conrmed
BesidethistheparagraphdeclaresthatthesedevicesmustnothaveaCE-
markingaccordingtoDirective97/23/EGThereforewedonotissuede-
clarationsofCEandourproductsarenotlabelledaccto97/23/EG

6
• Assembly of the ow meter
Theowmetershouldbemountedonaneasilyaccessiblelocation,sothat
dismantlingforcleaningthemeterpresentsnoproblemSinceowmeters
canworkinanyinstallationpositionandowdirection,youcanmountiton
anylocationofyoursystemTakecare,wheninstallingtheowmeterthat
liquidalwaysremainsintheowmeter,evenatsystemstandstillandthatit
canneverrunemptyTheoutowoftheowmetershouldthereforealways
showacertainbackpressure,sincethisclampstheowmeterrmlyinthe
liquidcolumn(themetersupportsitselfthroughthisontheliquidcolumn)
andthepipelinecannotrunemptyIncriticalcasesorwhenthepipeline
isatstandstillorstandbyandcanrunempty,werecommendinstallingan
extranon-returnvalveintheoutowline
Flowmetersofthe“VSI”productlinecanbemounteddirectlyontoablock
orintothepipelineusingfourscrewsAlwaysselectlargecrosssections
forthehydraulicsupplyandreturnowrespectivelyfortheentirepipeline
system(ifpossible)Thislowersthefallinpressureandtheowrateinthe
totalsystem
Important:
Make sure that the specied maximum permitted operating pressure of the ow meter
cannot be exceeded, whatever the operating mode of the system. Note the ow meter
range that is dependent on the viscosity of the uid to be measured.
Important:
Make sure that the ow meter is always completely lled both in inow and outow
and that the outow has a little back pressure. This prevents the meter being damaged by
a sudden and steep increase of ow and at the same time improves measurement accuracy.
Fig. 1: Flow meter installation with non-return valve
 
VSI002;VSI004;VSI01;VSI02 15Nm
VSI04;VSI1;VSI2 35Nm
VSI4 120Nm
VSI10 250Nm
VSEsuppliessubplatesforallowmetersofthe“VSI”productline;they
havevariouspipethreadsandsideorrearsideconnection(seesubplates
datasheet)Dependingontheprovidedconditions,theinstalledpipeline,
thepipecrosssectionorpipethread,theoperatorcanchoosethesuitable
subplateandincorporatethisintothesystemormachinewithoutadditional
reductions
TheowmeterisscrewedontotheblockorsubplatewithfourDIN912
cheeseheadscrewsThescrewsaretobeevenlypre-tensedcrosswisewith
thefollowingtorques
When changing the fastening screws you must take great care that the
screwsareofpropertyclass109and129

The ow meter is directly mounted onto a subplate or manifold, extra
componentsarenotneededTheblockcontainsthehydraulicsupplyand
outow of the ow meter and the xing bore holes (see ow meter
dimensionsheet)


Please note the special instructions for mounting sizes VSI 4 and VSI 10
(see appendix)
• Flow meter range
Theowmeterrangespeciedintheowmeterdatasheet(Qmin-Qmax)
referstothetestinguid“hydraulicoil“withaviscosityof21mm2/sata
temperatureof20°CForthisowmeterrange,VSEspeciesmeasurement
accuracyofupto03%ofthemeasurementvalueandarepetitionaccu-
racyof005%
Foruidsoflower viscosity (< 21 mm2/s)measurementaccuracy deteri-
orates, while for uids of higher viscosity (> 21 mm2/s) it can improve
Alsonote,however,thattheowmeterrangeisrestrictedincaseofhigher
viscosity(seeowmeterdatasheet)
Non-returnvalve
Flowmeter
Tank

7
• Filtering of liquid
Stronglycontaminateduidsorextraneousmaterialintheuidcanblock,
damageorevendestroytheowmeterAlwaysinstallasufcientlylarge
lterforthesecasesinfrontoftheowmetertopreventdamagetotheow
meterThenecessarylteringdependsonsize,bearingsystemandmodel
ofowmeter
Important:
Please ush out the pipe lines and the tank thoroughly, to prevent contamination
within the ow meter.
Important:
When mounting the ow meter, you must take great care that the seals are not damaged and
correctly placed in the hydraulic connections of the ow meter. Wrongly installed or dama-
ged seals lead to leakage and to a leaky system, which may have dire consequences.
Please make sure that ow meters with EPDM seals do not come into contact with oil and
greases on a mineral oil basis. These uids can decompose the seals.
The yellow plastic plugs in the hydraulic connections of the ow meter protect the meter
against dirt and contamination during storage and shipping. Before mounting the ow meter
you have to remove these plugs so that in- and outow is free and open.
• Cleaning and ushing of pipe lines before initial start-up
Beforeinitialstart-upoftheowmeter,youmustushandcleanthewhole
systemContaminateduidcaneffectthecorrectfunctionoftheowmeter
orseriouslydamagethemeter
Afterpreparingandconnectingupthesystempipes,youmustrstcarefully
ushandcleanthe wholepipeline systemandthetank Todothis,you
havetomountadiversionplateontotheblockorsubplateinsteadofthe
owmeter,sothattheuidcanowthroughthediversionplateandallex-
traneousmaterial(egswarf,metalchips,etc)canbeushedoutwithout
obstructionUseauidascleansingagent,whichiscompatiblewiththe
uidbeingusedlaterandwhichdoesnotcauseundesirablereactionsYou
canconsultthesuppliersandmanufacturersoftheuidorcontactVSEfor
thecorrespondinginformationVSEsuppliesbypassplatesforallVSI-ow
metersizes
Flowmetersaremeasurementpick-upsystemsmadewithhigh-levelprecisi-
onTheyhaveamechanicalmeterconsistingoftwotoothedwheels,which
isadaptedtothehousingwithnarrowslotsEventhetiniestdamagetothe
toothedwheelsandbearingscancauseameasurementerrorSoalways
makesurethatnoextraneousmaterialgetsintothemeterandthattheuid
owingthroughisalwaysfreefromdirtandcontamination
Afterthesystemhasbeencarefullyushedoutandnoextraneousmaterial
isinthepipeline,youcanmounttheowmeterandcommencetheinitial
start-up
 
VSI002/004/01 10µm
VSI02/04 20µm
VSI1/2/4/10 50µm

For information on lter size for ow meters with plain bearings, in spe-
cial version, or with specially adjusted meter tolerances, please consult
VSE GmbH.
Important:
A blocking ow meter can stop the whole ow. You have to provide a control
valve / bypass for the system.

8
0°
45° 90°
135° 180° 225° 270° 315° 360°
pulse signal from channel 1
pulse signal from channel 2
zero signal pulse (zero pulse)
one measurement value
interpolation factor IPF = 8
Vm*= Vm/ 8
1/2 Vm *
1/4 Vm*
pulse signal from channel 1 without interpolation
pulse signal from channel 2 without interpolation
0°
45°
0° 180° 360° 90° 270°
1 Vm*
1
1
Division of a single pulse into 360°.
All other signal pulses can be regarded in this way.
Evaluation electronics recognise flow direction from the channel offset of 90°.
Each individual pulse flank is offset 90° and has a value of 1/4 Vm*.
22.5°
11.25° 33.75°
1.pulse
1 2 3 45 67 8
Thepreampliersofthestandardversionforowmetersofthe“VS”pro-
ductlineoutputapulsepertoothgapvolumeVz,whichcorrespondstothe
volumemeasurementVm(Vm=Vz
/pulse)Thistakesplaceintwochannels,
sothatyoucanattainamaximumresolutionof1/4Vzfortheevaluationof
allanksAhigherresolutionisnotpossiblewiththesepreampliers
Butsinceashigharesolutionaspossibleisnecessaryforpreciseandexact
owandvolumemeasurements,thevolumemeasurementVmmustberesol-
vedevenmorethanisthecasewithconventionalpreampliersVSEhas
thereforedevelopedthepreamplierwithinterpolation,withwhichaselec-
tableresolutionofupto64anks(16pulses)perperiodcanbeattained
(seetable 3)Thismeansthatyoucan resolve the volume measurement
Vmwiththispreampliertoamaximumof1/64VmFortheevaluation,this
meansthatapartvolumeof1/64Vmfrompulseanktopulseank(for
quadrupleevaluationorankcount)ismeasured,orafullsignalpulseis
countedaspartvolumeof1/16Vm(pulsecount)(seeg3,interpolation
Vm/16)
This individually programmed high resolution enables you to set the vo-
lume measurement Vm optimally for each provided case of application
Furthermore,newapplicationscanbeavailedofwiththehigherresolution
potential
Fig2showstheresolutionofthevolumemeasurementVmwithaninterpola-
tionfactorof8Thisresolveseachvolumemeasurementintoeightindividu-
alpartvolumesApulseonthesignaloutputofchannel1orchannel2thus
hasavalueofVm*=Vm/8=1/8VmperpulseIndoubleevaluation(ank
evaluationofonechannel)thisresultsinavalueof1/2Vm*=Vm/16=
1/16Vmandforquadrupleevaluation(ankevaluationofbothchannels)
theresultisavalueof1/4Vm*=Vm/32=1/32VmperankEvaluation
electronicscanrecogniseowdirectionfromsignalsoffset90°
• Flow meters with high denition of volume measurement
 Measuring,controllingandregulatinginthelowerowrange
 Measuring,controllingandregulatinginzeroow
 Measuring,controllingandregulatinginbothowdirections
 Measuring,controlling,dosingandllingofsmallvolumes
Flowmeterswithinterpolationelectronics(VSI)outputtwodigitalsignals
withprogrammablehighresolutionthatarephase-offset90°(seeg3)
Inadditiontothesignalemission,azerosignalemissionisprovided,which
emitsazerosignalateachfullyregisteredvolumemeasurementVm(see
g2)
Fig. 2: Signal emission of the preamplier with interpolation
(interpolation factor 8)

9
Thepreamplierofthe“VSI”productlinehasaprogrammedinterpolation
factor(IPF)withwhichyoucanprogramnew,differentresolutionsHence
you can program a resolution of 4 to 64 angular steps (see g 4) per
volumemeasurementVmThefrequencymultiplication“f*”liesbetween1
and16(seetable3)
Column1:ProgrammableinterpolationfactorIPF(programmedinthefactory)
Column2:PulsespervolumemeasurementVm
Column3:MaximumresolutionofthesignalanksThesignalanksofchannels1and2areevaluated
Column4:VolumemeasurementVm*resultingfromthemaximumresolutionofthesignalanks
Column5:Maximumresolutioninangledegreesatresolutionofsignalanks
Column6:Maximumfrequencyfmax*atmaximumowQmaxandprogrammedinterpolationfactorIPF
Inpractice,themaximumowQmaxoftheowmeterisseldomrun,sothatalowerfrequencycanbecalculatedThemaximumfrequencyisthen
calculatedaccordingtothefollowingformula:

fmax
° Maximumfrequencyoftheowmetersignals
Qmax
° Maximumowattainedinthecaseofapplicationdescribedhere
IPF Programmedinterpolationfactor
Vm Volumemeasurementoftheowmeter
Example:Flowmeter1/10…maxowthesystemcanberunonatamaximum
Q
max
°=40l/min=666667ml/sec;IPF=10;Vm=1ml/pulse;fmax °=666667Hz=666667kHz
Atmaxowmax
°=40l/min,theowmeter1/10…outputsafrequencyoffmax °=666667Hz





*

*



*
1 1 4(quadrupling) Vm/4 90° fmaxx1
228Vm/8 45° fmaxx2
3312 Vm/12 30° fmaxx3
4416 Vm/16 225° fmaxx4
5520 Vm/20 18° fmaxx5
8832 Vm/32 11 2 5° fmaxx8
10 10 40 Vm/40 9° fmaxx10
12 12 48 Vm/48 7 5° fmaxx12
16 16 64 Vm/64 5625° fmaxx16

Only the marked lines are illustrated in the diagram of g. 3
°° 


10
Fig. 3: Interpolation of the volume measurement Vm
Important:
Test the connected evaluation electronic system as to whether it can process the maximum
frequency fmax of the ow meter. Check the data from the following table for the relevant
ow meter, or calculate the maximum frequency data fmax° with formula 1.
{
Vm /1
{
Vm /2
{
Vm /4
{
Vm /8
{
Vm /16
channel
channel
channel
channel
channel
channel
channel
channel
channel
channel
°0/°063°0 180°
45° 90° 135° 225° 270° 315° 45° 90° 135° 180°
22.5°
0°
22.5°
5.625° 11.25°
16.875°
If the resolution is sixteen-fold, this gives
a recognition of 22.5° (360°/16)
This results in a resolution of 5.625° (22.5°/4)
when evaluating the flanks of channel 1 and 2
The highest resolution permits recognition of
a measurement volume of 1/64 V .
one measurement volume Vm
360° angle degrees
1. pulse
eslup.2eslup.1
1. pulse 2. pulse 3. pulse 4. pulse
1. 2. 3. 4. 5. 6. 7. 8.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10 11 12 13 14 15 16
1. 2.
m
At initial start-up of the system, you have to program the 
(seetable4,column4)inyourevaluationelectronicsas
parametervalue(egmultiplier)Theevaluationelectronicsthenmultiply
everypulsetheowmeteroutputsbythevolumemeasurementVm*and
thuscalculatestheowandthevolumeForowmeterswithhighresolu-
tion, the parameter value    is dependent on
volumemeasurementVm(seetable4,column2)andontheprogrammed
interpolationfactorIPF(seetable4,column3)
PleaseconsultthisrstofallforthevolumemeasurementVm*andprogram
thisvalueasparameterintoyourevaluationelectronics
Ontable4youcanviewthecorrespondingvolumemeasurementVm*(see
table 4, column 4) with the real, programmed interpolation factor IPF*
(seetable4,column3)TheK-factorincolumn5isameasurementforthe
resolutionperlitre
Youthengetthemaximumfrequencyfmax*(seetable4,column8)ofthe
signalpulsesforthemaximumowQmax(seetable4,column6)withpro-
grammedinterpolationfactorIPF*Thisfrequencyisdependentonthepro-
grammedinterpolationfactorIPFandincreaseswithrisingresolution
Vm
1st
1st
1st
2nd
2nd
2nd
1st
2nd
1st
2nd




