HP 5890 Series II

SVC3-1
Section3
FLOW/PRESSURECONTROL
COMPONENTS
FLOW/PRESSURECONTROLCOMPONENTS
Flowandpressurecontrolcomponentsincludepressureregulators,pressuregauges,massflowcon-
trollers,capillarysolenoidvalves,detectorflowmanifoldblocks,andtheElectronicFlowSensor(EFS)
module.TherearemanyoptionsavailablefortheHP5890SeriesII.Maintenanceproceduresforthe
mostcommonitemsfoundintheinstrument.Proceduresaresuppliedtoremove,replace,and/or
cleanvarioussubassemblies,basedonthecurrentmaintenancephilosophy,i.e.,toallowreplacement
ofthelowestlevelcomponentsapplicableforaparticularassembly.
Specificpartnumbersarenotgiveninthissection.Forallreplacementpartnumbers,refertoSections
3and4oftheIPBportionofthisdocument(DetectorFlowManifoldAssembliesandInjectionPortFlow/
PressureControlModules,respectively).
Thisdocumentisnotmeanttoprovideinstructionforfirsttimeinstallationofanyoftheoptionsdis-
cussed.Add-onsheetsexistforjustthispurpose,andshouldbereferencedwhenperformingafirst
timeinstallation.
TABLEOFCONTENTS
FLOW/PRESSURECONTROLCOMPONENTS SVC3-1.........
PCOCEPC/MPCTroubleshooting SVC3-2................................
Remove/ReplaceInletFlowControlComponents SVC3-5....................
Remove/ReplaceSplit/SplitlessCapillaryInletSolenoidValve SVC3-7.........
Remove/ReplaceElectronicPressureControl(EPC)Components SVC3-11.....
Remove/ReplaceManualPressureControl(MPC)Components SVC3-14.......
Remove/ReplaceEPC/MPCPressureControlPCB SVC3-17..................
TypicalSwitchSettingsforEPC/MPCPCBs SVC3-18.........................
ReplaceElectronicFlowSensorModule SVC3-19...........................
ElectronicFlowSensor(EFS)Calibration SVC3-22...........................
SettingtheZEROCalibrationValue SVC3-22................................
SettingtheGAINCalibrationValue SVC3-23................................
EnteringSpecificZEROandGAINValues SVC3-24..........................
Replacing/RepairingaFlowManifoldBlock SVC3-25.........................
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