LEYRO LPG 300 User manual

LPG 300
PORTABLE LOW PRESSURE CONTROLLER
MANUAL

TABLE OF CONTENTS
1. GENERAL
1.1 Symbology
2. SAFETY
2.1 Intended use
 2.2Personnelqualication
 2.3Specicrisks
 2.4Labelling/Safetymarks
3. PRODUCT DESCRIPTION
4. TRANSPORT, PACKAGING AND STORAGE
5. OPERATION
6. INTERFACE
7. LOW PRESSURE CALIBRATOR
8. FAILURES
9. DISMOUNTING, RETURN AND DIPOSAL
10. TECHNICAL DATA

1. GENERAL
Themanualisapartofthescopeofdeliveryandservestoensuretheproper
management and optimal operation of the instrument.
Leyrodoesnotacceptclaimsforwarrantyandliabilityneitherthispublication
norincaseofimpropertreatmentofthedescribedproducts.
For this reason, the manual should read before starting up.In addition, the
manualisaimedatallpersonnelwhorequireknowledgeofthetransport,
installation,operation,maintenanceandrepair.
Themanualshouldnotbeusedforthepurposeofcompetitionwithoutthe
consentinwritingofLeyroandshouldnotbesenttothirdparties.Copiesfor
personal use are permitted.
Thedocument maycontaintechnicalinaccuraciesortypographicalerrors.
Thecontentwillbe reviewed on a regular basis.Thesechangeswilltake
placeinlaterversions.Thedescribedproductscanimproveandchangeat
anytimewithoutpriornotice.
©CopyrightLeyro®  Allrightsreserved.
1.1 Symbology
Thissymbolindicatessafetyinstructions.
Thesesafetyinstructionsmustbefollowedcarefully.
Failuretoheedtheseinstructionsforpersonalinjuryorpropertydamage
thatcouldhappen.ThereforeLeyro®isnotresponsiblefor.
Thissymbolindicatesanote.
Thesenotesshouldbeobservedtoachievetheoptimalperformanceofthe
equipment.
Thissymbolindicatesdanger.
Thereisariskofseriousorfatalinjuryfailuretoobservethesesafety
instructions.

2. SAFETY
Warning!
Priortoinstallation,implementationserviceandoperationmakesurethatselec-
tedlowpressurecontrollersuitablewithregardtorangemeasurement,design
andspecicmeasuringconditions.
Failuretocomplymaycauseseriousinjuryand/orpropertydamage.
Thedifferentchaptersofthisinstructionmanualcontainsotherimportantsafety
instructions.
2.1 Intended use
ThedriveroflowpressuremodelLPG300isdesignedtotestandcalibratepressuresen-
sors.
Theinstrument hasbeendesigned andbuiltsolelyforthe purposedescribedhereand
shouldbeusedincompliancewiththesame.
Complywiththetechnicalspecicationsofthisinstructionmanual.Improperhandlingor
technicaloperationoftheinstrumentdoesnotcomplywiththespecicationsrequiredthe
takenoutofserviceimmediatelyandinspectedbyanauthorisedLeyro.
Controltheelectronicprecisioninstrumentwithappropriatediligence(protectitfromhu-
midity,impacts,strongmagneticelds,staticelectricityandextremetemperatures;notto
introduceanyobjectintheinstrumentoropenings).PlugsandSocketsmustbeprotected
from dirt.
Ifyouchangetheinstrumentfromacoldenvironmenttoawarm,malfunctionsmayoccur
init.Insuchacase,shouldwaituntilittstheinstrumenttemperaturetoroomtemperature
beforeswitchingitbackon.
Noclaimsduetoimproperhandlingisnotsupported.
2.2 Personnel qualication
Warning!
Risk of injury due to insufcient qualications!
Improperhandlingcancauseconsiderablepersonaldamage.
Theactivitiesdescribedintheseoperatinginstructionsdebenrealizarseonlybyskilled
technicianswiththeconsiguientecualicacion.Keepunqualieddangerousareas.
Quialiedpersonnel

Duetotheirtraining,theirknowledgeoftheregulationandmeasurementtechniqueas
wellashisexperienceandhisknowledgeofregulations,standardsanddirectivesin
forceinthecountryofusequaliedpersonneliscapableofcarryingouttheworkdes-
cribedandrecognizepotentialhazardsonly.
Somespecicuseconditionsrequireadditionalskills,eg.aboutaggressivemedia.
Warning!
It is essential protection against electrostatic discharge!
Theuseofgroundedworksurfacesandpersonalwriststrapsisrequiredworksexpo-
sedcircuitry(printedcircuitboards),toavoiddamagetosensitiveelectroniccompo-
nentscausedbyelectrostaticdischarge.
Toperformasafeworkingontheinstrumentownermustensurethat:arstaidkitis
availableandthatisalwayspresentaidifnecessary.
Operatorsregularlyreceiveinstructions,onallissuesrelatedtosecuritywork,rstaid
andenvironmentalprotection,andknowalsoinstructionmanualandparticularlythe
safetyinstructions.
Danger!
Dangertolifeduetoelectricalcurrent.Therearedirectdeathdangertotouchlive
parts.Isoperatedwithadefectivepowersupply(e.g.shortcircuitfromthemains
voltagetotheoutputvoltage),canresultinlife-threateningvoltagesatthedevice!
Warning!
Residualmediaindismountedlowpressurecontrollercancauseriskstopeople,the
environmentandequipment.
Takeappropriateprecautionarymeasures.Donotusethisinstrumentinsecuritysys-
temsordevicesgivenemergency.Incorrectuseoftheinstrumentmaycauseinjury.
Incaseoffailureitispossibleaggressivemediawithextremetemperaturesorlow
pressureorthatthereisavacuumintheinstrument.
MaxP = 1 bar atmospheric pressure
2.3 Specic risks

2.4 Labelling/ Safety marks
Itisabsolutelynecessarytoreadtheoperatinginstructionspriorto
Assemblyandcommissioningoftheinstrument!
CE, Communauté Européenne
TheinstrumentsbearingthismarkcomplywiththerelevantEuro-
peandirectives.
Thismarkingontheinstrumentsindicatesthattheymustnotbe
disposedofindomesticwaste.Thedisposaliscarriedoutby
returntothemanufacturerorbythecorrespondingmunicipal
authorities(seeEUdirective2002/96/EC).
3. PRODUCT DESCRIPTION
Brief description
ThedriveroflowpressureLPG300ts:
Theeasysupplyofpositiveandnegativereferencepressure.
Measurementofpositiveandnegativepressure.
Differential pressure measurement.
Checkingforleaksofatestpiece.
Scope of delivery
Powersupply
Instructionmanual
AccordingtoDINin102043.1calibrationcerticate(optional:certiedENAC)
Checkwithdeliverynoteifallofthepartsaredelivered

Microprocessor Nominal-realvalue
comparator
Nominal pressure
value
Pressure
Port PC RS-23
IndicationUSBport
Regulator
Pressure
measurement
Pump
Valves
Neg. press.
Poss. press.

Electrical connections in the rear
USB Port
Port PC RS-23
Connectionforpowersupply

Power supply
LowpressurecontrollerisdesignedfromthefactoryforconnectingtoaDC24vpower
supply.Thepowerconnectorislocatedonthebackoftheinstrument.
Danger!
Dangerofelectricshock!Itisessentialtopulltheplugfromthesocketbefore
replacingthefuse!Isoperatedwithadefectivepowersupply(e.g.shortcircuit
fromthemainsvoltagetotheoutputvoltage),theycanresultinlife-threate-
ningvoltagesattheinstrument!
Onlyusetheoriginalpower(Mascotmodelo9926)includedinthescopeof
supplysource.
1.Incaseofconnectiontootherdevices,selecttheconnectionmodewithspecialcare.In
certaincircumstances,someinternalconnectioninthirdpartydevices(e.g.connectionto
ground)cancausenotpermittedvoltagepotentials,whichinturncouldaffecttheperfor-
manceofthedeviceitselforotherconnecteddevice,orevendestroythem.
2.Theconnectormustbealwaysconnectedintheformaccessibletoanelectricaloutlet,
toallowforeasydisconnectionatanytime.
LPG 300 Front view
Thescreenbehindtheplatefrontglassisglass.Ifduringusecannotbedismis-
sedcompletelyaglassbreakageincludingdestructionofblade,allpersonswho
areintheenvironmentclosetotheinstrumentshouldwearglassesofprotection
before and during use.
Connec-
tions to
pressure
Inthemodeofregulation:measurmentof
escape,otherwisenon-operating
Duringtheprocessofregulation:Vent,
anothercallfromtheOK
Increasethenominalvalueatx%
Increasethenominalvalue
100%
ON /
OFF
Decreasethenominalvalueatx%
Decreasethenominalvalue0%
Pointzeroadjustement

ON / OFF
Key to turn and turn off the instrument
Menu
ViathisbuttonyouaccessSETUPmenu,inwhichyoucanper-
formthesettingsforthecorrespondingoperatingmode.IfCTRL
modeisused,theinstrumentwillremainintheVENTafterexiting
the SETUP menu mode.
TheSETUPmenuoptionsarecomposedofsixsub-options.In
Chapter5youwillndadetaileddescriptionofthepoints.
LEAK
WiththekeyLEAKcanbecheckedforleakageofadevicecon-
nectedtothecontroller(Thisfunctionhoweverispossibleonlyin
theCONTROLmode).
ZERO
Buttonformanualadjustmentofthezeropointoftheintegrated
sensor.Duetofactorsexternal,suchastemperature,position,
orambientpressure,thezeropointoftheinstrument,i.e.the
indicatorwithopenpressureinputs,canbemodied.During
adjustmentofthezeropoint,theinstrumentdeterminesautomati-
callysuchmodicationsandincludestheminthecurrentpressure
indication.Thezeropointadjustmentrequiresaswitchingofthe
internalvalves,whichisnotpossiblewithoutalossofpressure
(ifthiscausesdisturbanceduringuse,theadjustmentofthezero
pointcanbedisabled).
Differentialpressureinstrumentsareconnectedtotheinstrumentconnections+and-.
Relativepressureinstrumentsareconnectedtotheconnection(connection-opentothe
atmosphere)fornegativepressureinstrumentsareconnectedtotheconnection-(connec-
tion+opentotheatmosphere).
Fastenonlyunpressurizedtestandcalibrationdevices!Notbeoperatingwithcompres-
sed air or breath tests.
Otherwise,theinstrumentswithlowmeasuringrangescanbedamaged.
Theconnectiontothelowpressurecontrolleroccursthroughaconnectionpressureof6.6
x11mm.Thediameterofthehosemusthave6mm.
Pressure connections

1 mbar
10 mbar
50 mbar
100 mbar
500 mbar
1,000 mbar
Overpressure protection
Themaximumallowablepressuremustnotbeexceeded:
PRESSURE RANGE OVERLOAD
Quintupleoverload
Quintupleoverload
Quintupleoverload
Quintupleoverload
Doubleoverload
Doubleoverload
4. TRANSPORT, PACKAGING AND STORAGE
Transport
Checkifthelowpressurecontrollerpresentsanydamagecausedduringtransport.
Immediately notify any apparent damage.
Packaging
Donotremovepackaginguntiljustbeforemounting.Keepthepackaging,sinceitisthe
optimalprotectionduringtransportation(e.g.Iftheplaceofinstallationchangesorifthe
instrumentissentforpossiblerepairs).
Storage
Conditionspermittedinthestorageplace:
Storagetemperature:-10...+70°C
Humidity:30...80%h.r.(nocondensation)
Avoid:
Directsunlightorproximitytohotobjects
Mechanicalvibration,mechanicalshock(puttingitdownhard)
Soot,vapour,dustandcorrosivegases
Potentiallyexplosiveenvironments,ammableatmospheres
Storethedriveroflowpressuresinitsoriginalpackaginginalocationthatfullsthe
conditionslistedabove.Ifyoudonothavetheoriginalpackaging,packandstorethe
instrumentasfollows:
1.Wraptheinstrumentinanantistaticplasticlm.
2.Placetheinstrument,alongwiththeinsulatingmaterialinthepacking.

3.Foralong(morethan30days)storageputabagwithadesiccantinpacking.
4.Notsealedtheentrancesofpressureduringstorage!Variationsinbarometricpressure
couldcausedamagetoinstrumentswithlowmeasuringranges.
Warning!
Beforestoringtheinstrument(followingoperation),removealltheresidualme-
dia.Thisisespeciallyimportantwhentheenvironmentisharmfultohealth,e.g..
caustic,toxic,carcinogenic,radioactive,etc.
5. OPERATION
Notbeoperatingwithcompressedairorbreathtests.Otherwise,theinstru-
mentswithlowmeasuringrangescanbedamaged.
Protecttheinstrumentfromdirectsunlight,asthismaycausemeasurement
errors.
Operating Control mode (CTRL)
CTRLmodeisusedforcalibrationofpressureandpressureswitchesorotherdevicesto
pressuresensors.CTRLmodethepumpisactivatedandregulatesthenominalpressure
inthecorrespondingform.Theinternalsensorsuppliesthecurrentrealvaluethroughthe
indicator.
Conguration
PressMENUbutton.ConrmthemenuMODE(MODUS)withOKoptionandpress
/untilCTRL.ConrmwithOK.
Settheupperlimitofthepressurerangeinthesub-menuRANGE(range)(key/
keysand/).ConrmwithOK
Settingtheunitofpressureinthesub-menuUNIT(unit)keys/)andconrmwith
OK.
Inthesub-menuSTEP(steps),thesequenceofstepsissetto%(keys/
and/),conrmwithOK.
Exitthesub-menubypressingtheMENUkey.

Use
To exit the menu becomes instrument
VENT mode, i.e., gauge sensor is purged.
Thenominalvalueofthepressurerangeis
indicatedintheuppercenterofthescreen.
Inthebottomhalfofthesamepercentage
valuecanberead.Toexitthismenuvalue
standsat 0%.Bypressing thebuttonOK
canswitchbetween specicationnominal
pressureandthepercentagevalue.
Modify nominal value in x%:
Modicatinofpressurein%viakeys
/
Modicationofpressurto100%via
key
Modicationofpressureagainto0%via
key
Thepercentagevaluecanbechangedwiththekeys/(intheestablishedstepsampli-
tudes)andkeys/.
Specicationnominalpressurecanbechangedonlywiththekeys/.
Keys/canskipspecicationofnominalpressureinthecorrespondingplace.
Assoonthecontrollerdisplayindicatesastablevalue,datacanberegistered.
InmodeCTRLispossibletomanuallyadjustthezeropointofthecontrollerandcheckfor
leakageoftheconnecteddevice.
Manual adjustment of zero point:bypressingtheZEROkeytheinstrumentreference
measuringcellisset.
Leakproofness test:BypressingtheLEAKbutton,thecontrolprocesswillbedeactivated
andthesystemclosed.Itcanbecontrolledviathedisplayifthevalueisstable.Bypressing
theLEAKbuttonagain,themodewillbestoppedandtheunitplacedbackinControlmode.
Fullscalevalue
Operating mode
Battery status
Pressure unit
Meassuredvalue
Setpointin%ofthefullscalevalue

Operating mode Measure (MEAS)
BypressingtheLEAKbutton,thecontrolprocesswillbedeactivatedandthesystem
closed.Itcanbecontrolledviathedisplayifthevalueisstable.Bypressing
theLEAKbuttonagain,themodewillbestoppedandtheunitplacedbackinControl
mode.
Conguration
FormodeMEAS,theRANGEandSTEPofthesub-menuoptionsareirrelevant.
PresstheMENUbutton.ConrmthemenupointMODEwithOKandpressthe/
buttonuntilMEASappears.ConrmwithOK.
Inthemenu,gototheUNITitemwiththe/button,selectthepressureunitand
conrmwithOK.
PresstheMENUbuttoninordertoexitthemenu.
SETTINGsubmenu:
 -GototheSETTINGSmenuitemwiththe/button,conrmwithOK.
 -Inthesubmenu,gotothezeropointadjustmentitemandconrmwithOK.
 -Underthepoint,AUTO-ZERO,theautomaticzeropointadjustmentforthe
  MEASmodecanbeactivatedordeactivated.
Onleavingthemenu,thezeropointoftheinternalsensorisadjusted,dependentupon
the setting. The instrument then begins to measure the subsequent pressures.
Operation

UsingtheZERObuttoninMEASmode,theinstrument‘szeropointcanbecompensated
at any time.
Caution!
Iftheconnectedpressureshouldexceedthepermissiblehighestloading
(125%),theinternalsensorwillbeclosedoffusingamagneticvalve.
ThedisplaywillthenshowERROR.UsingtheOKbutton,the
instrumentcanbeclosedoffandopenedupfreely.
Operating mode AUTO
InAUTOmode,apressureprolecanbestored.Thisisespeciallyusefulwhenmultiple
pressuresensorsorpressureswitchesaretobecalibratedwiththesamevalues.The
modealsoenablesadenedproletobetraversedseveraltimesinsuccession.
Setting
PresstheMENUbutton.ConrmthemenuitemMODEwiththeOKbuttonand
pressthe/buttonuntilAUTOappears.ConrmwithOK.
FortheAUTOmode,thesubmenupointsRANGE,UNITandSTEPSarenotrelevant.
GototheSETTINGSmenuitemwiththe/buttonsandconrmwiththe
OKbutton.Thesubmenuitemzeropointadjustmentisnotrelevant.
Inthesubmenu,gototheAUTOmodeitemwiththeUP/DOWNbuttonsandconrm
withOK:
 -RANGE:Pressurerangethatwillbecovered
 -UNIT:Pressureunit
 -STEPS:Thenumberofstepswhichwillbetakentoincreaseanddecrease
  thepressure.Theseincrementsarecalculatedbythecontrolleritself.

Inthesubmenupoint,CONFIGURATION1,furthersettingscanbedenedfortheAUTO
mode.
Setting
CYCLES:HerethenumberofcyclestobecarriedoutinAUTOmodewillbeset.
TSTART:Delaytimetoventthesensor
TSTOP:Delaytimebeforereachingthemaximumdenedpressure
THOLD:Holdtimeuntilanewpressurevalueisreached
TPAUSE:Delaytimebetweentwocycles
AUTOZERO:Automaticzeropointadjustmentatthecompletionofeachcycle
Toexitthesubmenu,presstheMENUbutton.
Operation
Onleavingthemenu,thecalibratorwillrevertto‘Standbystatus’.Allinformationabout
theAUTOmodewillbeshownonthedisplay.

ThegureshowstheowchartfortheAUTOmode.Basedonthetable,onewillknow
whichcyclesarebeingcarriedoutandthemeaningofeach.
OK

Betweenphases10and16,thecalibratordatacanbeevaluatedandrecordedifastable
valueisdisplayed.TheAUTOmodecanbeexitedbypressingtheMENUbutton.VENT
willbeshownInthetopleftofthedisplay.
Leakage (LEAK)
InCTRLmode,theconnectedtestitemcanbecheckedforleakageviaLEAKbutton.
Setting
Inordertobeabletocheckatestitemforleakage,theinstrumentmustrstbeplacedin
CTRL mode.
Setthedesiredpressureusingthe/buttonorthe/button(0%/100%)
buttons.
Assoonasthepressureisreachedandthevalueisstable,presstheLEAKbutton.
Theinternalpumpwillbeswitchedoffandtheappliedpressurewillbeheld.
Operation