伯托射线仪表.pdf

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1、ContactlessMeasurementofLevelLB440PROCESSCONTROL0000d38e00asepatedeLevelGaugeLB440ThemeasuringsystemLB440isusedaffectedbythechemicalandphysicalforthecontactless,continuouspropertiesoftheproductbeingmeasurementofliquidsandbulkmeasured.Thelevelmeasurementismaterialsinreactors,v

2、esselsandadaptedtothespecificgeometryofbunkers.Themeasurementisnotthevessel.1RodSource1PointSourcewithShieldingwithShielding2Point2RodDetectorDetectorMaxMaxMinMin330/4...20mA0/4...20mAAlarmAlarm4EvaluationUnitLB4404EvaluationUnitLB440Figure1Figure2MeasuringArrangementFigures1

3、and2showschematiclayoutsoftypicalmea-applicationsarodsourceandroddetector(Fig.5)cansuringarrangements.Itiscomprisedofthesource1beused.Whichoftheseoptionsisselectedisdependentmountedontheoutsideofthecontainer,adetectoruponthemeasuringgeometry,themeasuringtask,2andtheconnection

4、cable3fromthedetectorambientfactorsorevenconsiderationsofspaceandtotheevaluationunitLB4404.Sourceanddetectormoney.Forlargermeasurementrangesseveralrodformaradiationfieldcorrespondingtothesizeofthedetectorscanbeusedtogetherinaline.Signalsfrommeasuringrange.Thiscanbeachievedbyu

5、singarod-individualdetectorsaretransmittedviaslaveunitstoashapedsourceandapointdetector(Fig.3)orapoint-masterevaluationunitforindicationofproductlevel.shapedsourceandaroddetector(Fig.4),forspecial23GeneralArrangementsRodSourceDetectorDetectorRodSourceFigure3:RodSourcePointSou

6、rceRodDetectorPointSourceRodDetectorFigure4:RodDetectorRodSourceRodDetectorRodDetectorRodSourceFigure5:RodSourcewithRodDetector34EvaluationUnitLB440Theevaluationunitincorporatesstateoftheart4-line,microprocessortechniquewith32-bitprocessorforilluminatedhighcomputingperformanc

7、eandhighaccuracyLCDdisplaytogetherwithmostsimpleoperation.Thesoftwareis„Softkeys“fortailoredtothemeasuringprinciple.Morethan40yearsmenu-guidedoperationofexperienceinthefieldofradiometricmeasurementtechniqueareconsequentlyutilized.InterfaceRS232Inaddition,theevaluationunitfeat

8、ures:nCompactdesignin19“-module(3HE;21TE)forinstallationinawallhousi