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SpecificationsandOrderingInformationPartNumber141612-01Rev.A(11/07)Page1of13990VibrationTransmitterDescriptionThe990VibrationTransmitterisintendedprimarilyfortheoriginalequipmentmanufacturers(OEMs)ofcentrifugalaircompressorsorsmallpumpswhoprefertoprovideasimple4to20mAproportionalvibrationsignalastheinputtotheirmachinerycontrolsystem.Thetransmitterisa2-wire,loop-powereddevicethatacceptsinputfromour3300NSvTMproximityprobeanditsmatchingextensioncable(availablein5mand7msystemlengthoptions).Thetransmitterconditionsthesignalintoappropriatepeak-to-peakvibrationamplitudeengineeringunits,andprovidesthisvalueasaproportional4to20mAindustry-standardsignalastheinputtothecontrolsystemwheremachineryprotectionalarmingandlogicoccurs1.Theunitprovidesthefollowingnotablefeatures:•IntegratedProximitor®Sensor–noexternalunitrequired•Non-isolated“PROXOUTandCOMterminalsplusacoaxialconnectortoprovideadynamicvibrationandgapvoltagesignaloutputfordiagnostics2.•Non-interactingzeroandspanpotentiometersundertheTransmitterlabelforloopadjustment.•TestInputpinforquickverificationofloopsignaloutput,usingafunctiongeneratorastheinput.•APower-upInhibitcircuittoeliminatesignalerrorsduetolinevoltagetransients.•ANotOK/SignalDefeatcircuittopreventhighoutputsorfalsealarmsduetoafaultyproximityprobeorlooseconnection.•DIN-railclipsorbulkheadmountingscrewsasstandardoptions.•Pottedconstructionforhighhumidity(upto100%condesnsing)environments.•Compatiblewith3300NSvproximityprobetoallowtransducerinstallationinsmallareaswithminimalclearance,typicalofcentrifugalaircompressors.•Notes:1.Transmittersdonotsupplythelevelofdatarequiredtodiagnosemachineproblems,however,theyareapracticalsolutioninsomeapplicationsformeasuringgeneralvibrationlevels.Whenintegratedintocontrolormonitoringsystems,measurementssuppliedviatransmittersystemsareavaluabletoolforoverallvibrationtrending.2.The990VibrationTransmitter'sProxOutcoaxialconnectorprovidesanon-isolateddynamictransducersignalformachinerydiagnostics.Youcanconnectthissignaldirectlytobattery-poweredorisolatedtestequipmenttodiagnosemachineryproblems.However,sincethePROXOUTsignalisnotisolatedfromthe4to20mAloopsignal,aninterfaceisavailable(andstronglyrecommended)forsignalisolation.The990/991TestAdapterconditionsthe990Transmitter'sPROXOUTsignalforusewithac-poweredtestequipment.Italsoinvertsandisolatesthe990'stransducersignal,makingitsuitableforequipmentsuchasoscilloscopesandanalyzers,andpreservingindustry-standardconventionsforsignalpolarity.Westronglyrecommendtheuseofthistestadapterforallapplicationstomaintainisolationbetweentestequipmentandtheloopsignal,andensurethattheinstallationmaintainsmachineryprotectionintegrity.SpecificationsandOrderingInformationPartNumber141612-01Rev.A(11/07)Page2of13SpecificationsUnlessotherwisenoted,thefollowingspecificationsapplyat+22°C(+72°F)usinga3300NSvProbeandExtensionCable,andanAISI4140steeltarget.ElectricalInput:Acceptsonenon-contacting3300NSvProximityProbeandextensioncable.Power:Requires+17Vdcto+35Vdcexternalpowersupply.4-20mASignalOutput:4-20mAdcoverspecifiedfull-scalerangein2-wireconfiguration.4-20mALoopAccuracy:Within±1.5%overspecifiedfull-scalerange.AccuracyisratedfromtheTESTsignalinputtothevoltagemeasuredacrossa250Ωloopresistance.ProbeGapProbemustbegappedbetween0.5and1.75mm(20and55mils)fromtargettoensurefullscalerange.MaximumLoopResistance:1,000Ωincludingcableat35Vdc.CurrentLimiting:23mAtypical.ZeroandSpan:Non-interactingexternaladjustments.NOTOK/SignalDefeat:Signaloutputwillgotolessthan3.6mAwithin100µsafteraNotOKconditionoccurs.Signaloutputisrestoredwithin2-3secondsaftertheNOTOKconditionisremoved.Power-upInhibit:Signaloutputstaysatlessthan3.6mAfor2to3secondsafterpowerisapplied.ProximitorSensorOutput:Compatiblewithungrounded,portabletestequipment.Whenusinggrounded,ac-poweredtestequipment,usethe122115-01TestAdapterforsignalisolation.OutputImpedance:ProxOuthasa10kΩoutputimpedancecalibratedfora10MΩload.ProxOutLinearRange:1.4mm(55mils).Beginsatapproximately0.25mm(10mils)fromtargetsurface.ProxOutIncrementalScaleFactor:7.87mV/µm(200mV/mil)±6.5%typicalincludinginterchangeabilityerrorswhenmeasuredinincrementsof0.25mm(10mils)overthelinearrangeusingaflat30mm(1.2inch)target.TemperatureStability:Incrementalscalefactorremainswithin±10%of7.87mV/µm(200mV/mil)from0°Cto+70°C(+32°Fto+158°F).SpecificationsandOrderingInformationPartNumber141612-01Rev.A(11/07)Page3of13FrequencyResponse:5Hzto6,000Hz+0,-3dB.MinimumTargetSize:9.5mm(0.375in)diameter.LeadwireLength:Non-Hazardous,Zone2orDiv2Hazardousarealocations:13km(8miles)maximumbetweentransmitterandreceivingdeviceforsignaloutput.IntrinsicallySafeHazardousarealocations:68metres(225ft.)maximumbetweentransmitterandreceivingdeviceforsignaloutput.MaximumforProximitorSensorOutput,maximumcabledistanceis3metres(10feet).ElectricalClassification:GeneralPurposeApprovalbyCanadianStandardsAssociation(CSA/NRTL/C)inNorthAmericaandbyVDEinEurope.990hastheCEmarkforEurope.HazardousAreaApprovalsCSA/NRTL/CClassI,Div2GroupsA,B,C,DT5@Ta=85°C,Type41675219(LR26744-151)PerDrawing128838A