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1/12

Datasheet

ST5484ESeismicVelocity420mATransmitter

Document1004457

Rev.K(Nov2011)

Overview

TheST5484Eisaselfcontainedseismicvelocity

transmitterthatincorporatesapiezoelectric

accelerometer,signalintegrator,RMSpeak

detector,and420mAsignalconditionerintoa

singlepackagethatcanbemounteddirectlyon

themachinecaseorbearinghousingwithout

needofanyinterveningsignalconditioning

equipment.The

amplitude

of

the

integrated

acceleration(velocity)signalisconvertedtoa

proportional420mAsignalthatiscompatible

withmostindustrialprocesscontrol

instrumentationsuchasPLCs,DCSs,andSCADA

systemsthatcanprovidetrendingand/or

alarmingcapabilitiesforasimplifiedvibration

monitoringstrategy.

Whentheflyingleadorterminalblock

connectoroptions

are

chosen,

the

transmitter

is

designedforusewithoutneedofaseparate

environmentalhousingandcandirectlyaccept

conduit. Itcanbeusedwithbarriersfor

intrinsicallysafeinstallations,orwireddirectly

toexplosionproofconduitfittingsforexplosion

proofinstallations,reducingtotalinstalledcosts.

NeedALocalDisplay?

Whencontinuous,localindicationof

vibrationlevels

is

required

at

the

transmitter,theMetrixST5491Eprovides

thesecapabilities. Itssensingand

transmitterelementsaresimilartothe5484E,butit

includesaconvenient2digitLCDdisplayinanintegral

conduitelbowandisratedforuseintemperaturesfrom

10Cto+70C. Refertodatasheet1004598forordering

informationanddetailedspecifications.

FlyingLeads

(OptionD=0or1)

(2wireshown;4wire

alsoavailable)

2PinMILConnector

(OptionD=4)

2PinTerminalBlock

(OptionD=2)

4PinTerminalBlock

(OptionD=3)


2/12

Datasheet


Document1004457 Page2of12

Rev.K(Nov2011)

Applications

Inapplicationswherethefeaturesandfunctions

ofastandalonemonitoringsystemmaynotbe

warranted,theuseofavibrationtransmitter

maybeanappropriateapproach.

TheST5484Eisintendedforgeneralpurpose

vibrationmeasurementsonawiderangeof

rotatingandreciprocatingmachinerywith

rotativespeeds

between

120

rpm

and

6,000

rpm. Seismicmeasurementsareparticularly

wellsuitedformachinesthatincorporate

rollingelementbearingsbecauseshaftvibration

insuchmachinesisusuallytransmitteddirectly

throughthebearingtothebearinghousing,

withoutsubstantialdampingorattenuation.

Seismictransducersarealsoabletomeasure

vibrationthatdoesnotoriginateattheshaft,

suchasbearingrelatedwearanddefects,

footing/foundationproblems,pipingresonances

thatarecoupledtothemachine,etc.

WhyMeasureVelocity?

Accelerationanddisplacementlevelsareheavily

influencedbythefrequency(ies)atwhichthe

vibrationisoccurring,whilevelocitylevelsare

muchlessinfluenced.Thus,although

acceleration,velocity,anddisplacement

measurementsare

all

inter

related

mathematically,seismicvelocitymeasurements

tendtobemoreconsistentoverawiderangeof

frequenciesthaneitherdisplacementor

acceleration. Consequently,broadband

(sometimescalledoverallorunfiltered)

velocitymeasurementsareappropriatefor

monitoringmanymachinesasareliable

indicatorofdamagingvibratoryenergy,withthe

notableexceptionofmachineswithfluidfilm

bearings,whichareusuallybetteraddressedby

shaftobservingproximityprobes.

Casingdisplacementisnotapractical

measurementtomakedirectly,andistypically

justan

integrated

seismic

velocity

measurement. Assuch,theprimarydecision

whenselectingaseismicsensorwillusuallybe

whethertomeasurecasingvelocityorcasing

acceleration. Asnotedabove,casingvelocity

willoftenbemoreappropriatebecauseittends

tobeamorereliableindicatorofdamaging

vibratoryenergyoverabroadfrequency

spectrumforlow tomediumspeedmachinery.

NOTE:

Formachineswithfluidfilmbearings,shaft

observingproximityprobeswillprovidemore

effectivevibrationmeasurementsthanseismic

transducersduetotherotordynamicsofthemachineand

theattenuationofvibratoryenergythroughafluidfilm

boundary. Accordingly,Metrixrecommendsandprovides

proximityprobesandassociated420mAtransmittersor

monitoringsystemsforsuchapplications.

Formachineswithrollingelementbearingsandrunning

above6,000rpm,and/orwhereimpulsivecasingvibration

occurs,accelerationmaybeabettermeasurement. In

suchsituations,itisrecommendedthatyouconsultwith

yournearestMetrixsalesprofessionalwhocanreviewyour

applicationandassistwithselectionoftheproper

transducertypeandassociatedtransmitterormonitoring

system.


3/12

Datasheet



Rev.K(Nov2011)

Features

HazardousAreaApprovalsNorthAmerican(CSA),Brazilian(INMETRO),and

European(ATEX&IEC)approvalsavailable.

DynamicSignalAvailability2wireversionsprovidea420mAvelocity

proportionalsignalforeasyconnectionto

PLCs,DCSs,andotherplantcontrolsystems.

Optional4wireversions*alsoprovidethe

rawaccelerationsignal(100mV/g)foruse

withvibrationdatacollectorsandanalyzers.

VarietyofConnectionOptionsFlyingleads,terminalblock,andMILtype

connectorsavailable.

ConduitReady**Terminalblockandflyingleadoptionshaveconduitthreadson

topofsensor. Nospecialhousingsare

requiredforconnectionofconduit.

Rugged,IndustrialDesignRobustconstructionoffersoutstandingdurability;

builtinbaseandhousingstrainprotection

helpsensurethatovertorqueingsensorto

machineandsensortoconduitconnections

wontdamageinternalsorbody.

High andLowPassFilterOptionsTheST5484Ecanbeorderedfromthefactory

withawidevarietyoflowpassand/orhigh

passfilteroptionstopreciselytailorthe

bandover

which

vibration

ismeasured.

PolarityIndependentWiringOurpatentedIPTtechnologyallowslooppower

tobeconnectedwithoutregardtovoltage

polarity,reducingfieldwiringerrorsand

ensuringthattherawaccelerationoutput*

isnotphaseinverted.

MultipleMountingOptionsIntegralandremovablemountingstudoptionsavailable

inbothmetricandEnglishthreadsizes;flat

basemountingadaptersalsoavailable.

LoopPoweredRunsonnominal24Vdcpowersuppliedbythe420mAcurrentloop

WideSupplyVoltageRangeAcceptslooppowervoltagesfrom11to30Vdc.

RMSAmplitudeDetectionMeasuresRootMeanSquare(RMS)vibrationamplitude.

OptionsavailableforTrueRMSorscaled

RMS(RMSx 2)forderivedpeak.

NumerousFullScaleRangesThefullscalerangesprovidedinoptionAAAreflect

frequentlyorderedranges;however,many

others(toonumeroustolist)arealso

available. Consultfactoryforapplications

requiringother

full

scale

ranges.

*Dynamicrawaccelerationsignalavailablewith4

wireversionsonly(orderingoptionsC=1andC=3).

**Metrixrecommendstheuseofflexible(ratherthan

solid)conduitwhenpossible. Solidconduitmaybe

morepronetotheintroductionofpreloadforceson

thesensorandcorrespondingalterationofthe

sensorsvibrationresponse.


4/12

Datasheet



Rev.K(Nov2011)

Specifications

Allspecificationsareat+25C(+77F)and

+24Vdcsupplyvoltageunlessotherwisenoted.

Inputs

Supply

Voltage

(seealsonote

undermax

loop

resistance)

1130Vdc(24Vdcnominal);

MetrixpatentedIPTindependent

polaritydiodebridgecircuitallows

voltagetobeconnectedwithout

regardtopolarity.

CircuittoCase

Isolation

500Vrms

Outputs

420mA Proportionaltovelocityfullscale

range(4mA=0vibration,20mA=

fullscalevibration)

Maximum4

20mAloop

resistance

RL=50x(Vs11)whereVs =

SupplyVoltageattransmitter

terminals.

NOTE:Forevery50ohmsofresistancein

the420mAloop,1Vdcabovethe

minimumsupplyvoltage(11Vdc)mustbe

availableatthetransmitterterminals. For

example,12Vdcatthetransmitter

terminalswillallowa50 loopresistance;

30Vdcatthetransmitterterminalswill

allowa950 loopresistance. For

intrinsicallysafeapplications,theuseofa

passivezenerbarrierwillincuravoltage

dropofapproximately8.1voltsatthe

barrier,andtheloopsupplyvoltageis

limitedto26Vdc. Thus,withpassive

barriersanda26Vdcsupply,themaximum

availablevoltageatthetransmitterwillbe

17.9Vdcandthecorrespondingmaximum

loopresistancewillbe345 .

Dynamic

Signal

100mv/gacceleration,filteredto

samefrequencybandas

proportionalvelocity(seeordering

optionsEandF)

Dynamic

SignalOutput

Impedance

10k

NOTES:

1.Thedynamicsignaloutputisshortcircuit

protectedbymeansofa10k resistor,

resultinginarelativelylargeoutput

impedance. Manydatacollectorsandanalyzershaverelativelylowinput

impedances(100k orless)whichwillload

thisdynamicoutputandattenuatethe

signalby10%ormore. RefertoTable1for

thedBandpercentageattenuationfor

variousloadimpedances.

2.Becausethe5484isalooppowered

devicewithlowoperatingpower,the

dynamicsignaloutputrequiresabuffer

amplifierforcablerunsinexcessof16feet

(5meters). Longercablerunswillalso

introducedistributedcablecapacitancethat

actsasalowpassfilter,attenuatinghigh

frequencysignalcontent. Insuchsituations,consultthefactoryforassistance

selectinganappropriatelowcapacitance

cable.

Recommended

Minimum

Load

Impedance

(Zload)for

Dynamic

Signal

Connection

500k

(seealsonote1above)

SignalProcessing

FrequencyResponse(+/

3dBpassband)

2Hz 1500Hz(standard)2Hz2000Hz(optional)

OptionalHigh

PassFilter

Corner

5,10,20,50,100,or200Hz(must

bespecifiedattimeofordering)


5/12

Datasheet



Rev.K(Nov2011)

HighPass

RollOff

12dB/octave

OptionalLow

PassFilter

Corner

230,250,500,or1000Hz

(mustbespecifiedattimeof

ordering)

LowpassRoll

Off

12dB/octave

Accuracy 2.5%(withinpassband)

4%(atcornerfrequencies)

MaximumFull

Scale

5.0in/sec(othersbyrequest)

MinimumFullScale

0.5in/sec(othersbyrequest)

FullScale

RangeUnits

in/sec(standard) mm/sec(availablebyrequest)

Amplitude

Detection

TrueRMSdetector;fullscalemay

beorderedwithTrueRMSunitsor

scaledRMS(RMSx 2)forderived

peakmeasurements.

SeeorderingoptionAAA.

Physical

Operating

Temperature

40Cto+100C(40Fto+212F)

Weight 0.9lbs(0.36kg)

Dimensions RefertoFigures1and2

SensitiveAxis Sameasmountingstudaxis

Axis

Orientation

Any

Enclosure

Material

303stainlesssteel(standard) 316stainlesssteel(optional)

Enclosure

Rating

NEMA4X

IP66

Connector

Types

FlyingLeads(2 and4wire) MILC5015(2wireonly) TerminalBlock(2 and4wire)

(refertoorderingoptionD)

Humidity 95%,noncondensing(flyingleadandterminalblock

versions)

100%condensing(MILstyleconnector)

Approvals

CEMark Yes

Hazardous

Areas

CSA ATEX IECEx INMETRO GOST(consultfactory)(refertoorderingoptionC)

RecommendedISBarriers

Passive(Zener

Type)

MTL 7787+orequal

Active(Zener

Type)

MTL7706orequal

Active

(Galvanic

Type)

MTL5541orequal

ST5484E

Entity

Parameters

Vmax:30V Imax:100mA


6/12

Datasheet



Rev.K(Nov2011)

OrderingInformation

ST5484AAABCDEF

SeismicVelocityTransmitter

AAA FullScaleRange1

1 2 1 1.0in/sec(25.4mm/s)peak2



1 2 4 5.0in/sec(254mm/s)peak2



1 5 1 1.0in/sec(25.4mm/s)trueRMS



1 5 4 5.0in/sec(254mm/s)trueRMS



B HousingMaterial&StudSize1

0 303SShousing,NPTstud


2 303SShousing, x24UNFstud

3 303SShousing,x20UNFstud

4 303SShousing,M8x1.012stud


6 303SShousing,x20UNCstud7 303SShousing,x28UNFstud


9 303SShousing, x16UNCstud



12 316SShousing, x24UNFstud




16 316SShousing,x20UNCstud



19

316SShousing,

x16

UNC

stud



C HazardousAreaCertification3,4

1 CSA/NRTL/C,ClassI,Div2,GrpsAD

2(XP)CSA/NRTL/C,ClassI,Div1,GrpsBD

andClassII,Div1,GrpsEG

3 (I.S.)ATEX,EExiaIICT4

4 (I.S.)CSA,ClassI,Div1,GrpsAD

5 (I.S.)INMETRO,BRExiaIICT4

6 (XP)INMETRO,BRExdIICT4

7 (I.S.)IECEx, ExiaIICT4

8 (XP)ATEX/IECEx,ExdIICT4

D ConnectionType3

024FlyingLeads,2wire;

(420mAoutputonly)

1


(420mAoutputanddynamicraw

accelerationsignal)

2TerminalBlock,2wire;

5

(420mAoutputonly)

3

TerminalBlock,4wire;5


accelerationsignal)

42PinMILStyle(MILC5015),

(420mAoutputonly)


(420mAoutputonly)

6



accelerationsignal)

E HighPassFilter

0 2Hz(standard)

1 5Hz

2 10Hz

3 20Hz

4 50Hz

5 100Hz

6 200Hz6

X Custom(consultfactory)6

F LowPassFilter

0 1500Hz(standard)

1 500Hz

2 1000Hz

3 2000Hz

4 250Hz6

5 230Hz6

X Custom(consultfactory)6


7/12

Datasheet



Rev.K(Nov2011)

NOTES:

1. Smallerdiametermountingstudsarenotabletowithstandenvironmentswithsustainedambient

vibrationlevelsabove2.0in/sec. ConsultTable2for

allowablecombinationsofA&Boptions.

2. TheST5484EusesanRMSamplitudedetectioncircuit.FullscalerangesinpeakunitsusedscaledRMS(i.e.,

RMSx 2). Thederivedpeakmeasurementswill

equaltruepeakonlyunderthespecialcaseofapure

sinusoid,notcomplexvibrationsignals.

3. HazardousAreaCertificationsarenotcompatiblewithallconnectiontypes. ConsultTable3forallowable

combinationsofC&Doptions.

4. Someapprovalsrequiretheuseofintrinsicsafetybarriers,othersrequireExplosionProofwiring

practices. RefertoTable4.

5. Itmaybedifficulttoconnectwirestoterminalblockswithoptional8200conduitelbowattached. Itis

suggestedthatwiresberoutedthroughconduitelbow,

thenlandedonterminals,andthenconduitelbow

secured. Useofunionadapter8201mayberequired.

RefertoAccessoriessectiononfollowingpage.

6. High andLowPassfiltercornersforstandardfiltersmustbeseparatedbyatleastoneoctave(lowpass

frequencymustbeatleast2Xhighpassfrequency). All

combinationsareallowedexceptE=6andF=4or5.

Customfilterswithcloserseparationand/ordifferent

rolloffsmaybeavailableinsomeinstances. Consult

thefactoryifcustomfiltersarerequired.

Table1AttenuationofDynamicSignalversusLoad

Impedance(Zload)DataCollector/

AnalyzerLoad

Impedance(Zload)

DynamicSignal

Voltage

Attenuation(dB)

DynamicSignal

Voltage

Attenuation(%)

10M 0.01dB 0.1%

5M 0.02dB 0.2%

2M 0.04dB 0.5%

1M 0.09dB 1%

500k 0.18dB 2%

200k 0.43dB 5%

100k 0.84dB 9%

50k 1.61dB 17%

20k 3.57dB 33%

10k 6.10dB 50%

Table2 AllowableCombinationsforA&BOptions

FullScaleRangeAAA=

AllowableBoptions(MountingStudSizes)

121,122,123,126

151,152,153,156

All(norestrictions)

124and154 0,1,3,

10,11,13

132and162 0,1,2,3,5,9

10,11,12,13,15,19

Table3 AllowableCombinationsforC&DOptions

DC 1 2 3 4 5 6 7 8

0 Y Y N N Y Y N Y

1

Y

Y

N

N

Y

Y

N

Y

2 Y N Y Y Y N Y Y

3 Y N Y Y Y N Y Y

4 Y N Y Y Y N Y N

5 Y Y N N Y Y N Y

6 Y Y N N Y Y N Y

Table4 Approvalsandcorrespondingwiring

requirementsC= Agency ApprovedAreas

I.S.

BarriersRequired

Explosion

ProofWiring

Required

I.SBarriersorXPWiringNot

Required

1 CSANRTL/C ClassI,Div2,GroupsAD

2 CSANRTL/CClassI,Div1,GroupsBD

ClassII,Div1,GroupsEG

3 ATEX ExiaIICT4

4 CSA ClassI,Div1,GroupsAD

5 INMETRO BRExiaIICT4

6 INMETRO BRExdIICT4

7 IECEx ExiaIICT4

8ATEX/

IECExExdIICT4


8/12

Datasheet



Rev.K(Nov2011)

Accessories

PartNumber Description

8200001 ConduitElbow&Reducer

MatestotopofST5484Eandprovidesaccesstoandphysical

protectionoffieldwiring. SuitableforClassI,Div.1(GrpsC&D)

andClassII,Div.1(GrpsE,F&G)hazardousareas.Conduit

entryis1NPT(1NPTto"NPTreducerincluded).NEMA4/

IP65.

Material:copperfreealuminum.

8200002 ConduitElbow&ReducerwithTerminalBlock

Sameas8200001butincludesterminalblock;conduitentryis1NPT(1NPTtoNPTreducersupplied)

8200005 StainlessSteelConduitElbow&Reducer

Similarto8200001butwithouthazardousareaapprovalsor

NEMA/IPrating. ConduitfittingisNPT.

Material:303stainlesssteel.

8200006 StainlessSteelConduitElbow&ReducerwithTerminalBlock

Sameas8200005butincludesterminalblock. Conduitentryis

"NPT.

Material:303stainlesssteel.

8201001 ConduitUnion

Fitsbetween5484Eand8200XXXconduitelbowwhenthereis

notenoughroomrotatetheelbow.

SuitableforClassI,Div1(GrpsA,B,C,D)andClassII,Div1(Grps

E,F,G)hazardousareas.Material:zincplatedsteel

7084001 FlangeMountAdapter

AdaptsNPTmountingstudon5484Eto3holeflatbase

pattern. Holepatternisthreeequallyspaced0.26diameter

holeson1.5diametercircle. Adapteris2diameterx0.75

thick.

Material:303stainlesssteel


Sameas7084001exceptcenterholeadaptsNPTstudon

5484E.


Sameas7084001exceptcenterholeadaptsx24UNFstudon

5484E.


9/12

Datasheet



Rev.K(Nov2011)

8253002 NPTtoNPTReducerBushing

AdaptsNPTstudon5484E(B=0)toNPTmountinghole.Material:303stainlesssteel

8978111XXXX 2pinMILSplashProofCableAssembly

Usedwith2pinMILstyleconnector. Connectorisprotectedby

integral,moldedbootwith6.4mm(0.25)diameter

polyurethanejacketedcableencapsulatingasingletwistedpair

ofconductorsandshield.

XXX.X=cablelengthinmeters(example:0037=3.7m)

8978211XXXX 2pinMILCableAssembly

Similarto8978111butwithoutsplashproofboot.

89782000000 2pinMILConnectorAssembly

Similarto8978211butwithoutcable(connectorcanbedisassembledforfieldinstallationofcable)

9334111YYYYXXXX 2pinMILSplashProofCableAssemblyWithArmor

Usedwith2pinMILstyleconnector. Connectorisprotectedby

integral,moldedbootwith7.1mm(0.28)diameterstainless

steelarmorencapsulatingasingletwistedpairofconductors

andshield.

XXX.X=cablelengthinmeters(example:0037=3.7m)

9334211YYYYXXXX 2pinMILArmoredCableAssembly

Similarto9334111butwithoutsplashproofboot.

816975002XXX 2wireCableAssembly

Usedwith8200001or8200005elbowwhenconduitwillnot

beused. 2conductor(20AWG)twisted,shieldedpairinPVC

jacketedcable. Gripforcablestrainrelief. Connectorismale

NPT.

Material:zincplatedsteel

XXX=lengthinfeet(example:010=10feet)

93818004 CableGripStrainReliefFitting

Usedprimarilywith8978cableassemblieswherecableenters

junctionbox. NPTmalethreadtocablegrip. Fitscable

diametersfrom0.156to0.25. Completewithsealingringand

locknut. Hotdip/mechanicallygalvanizedfinish. Suitablefor

NEMA4junctionboxes.

93818018 CableGripStrainReliefFitting

Similarto93818004,butfitslargercablediametersfrom0.4

to0.5,suchascustomersuppliedcablesusedwithterminal

blockversionsof5484E(D=2or3).


10/12

Datasheet



Rev.K(Nov2011)

OutlineDiagrams

Figure

1:

Outline

dimensions

of

ST5484E

(all

versionsexceptMILStyleConnector).

Dimensionsinmm[inches]. Optional8200XXX

conduitelbowshowninstalled.

Figure

2:

Outline

dimensions

of

ST5484EXXXXX4XX(MILStyleConnector).

Dimensionsinmm[inches].


11/12

Datasheet



Rev.K(Nov2011)

WiringConnections

Table5WiringConnectionLegend

ConnectorType DynamicSignalConnections PowerConnections

MILC5015 NotAvailable 24Vdcpowermaybe

connectedtoallST5484E

modelswithoutregardto

polarity. Sensoruses

IPTindependent

polaritydiodebridge

circuitthatwillalways

orientvoltagecorrectlyinsidesensor,regardless

ofpolarityexternally.

NOTE:AlthoughtheST5484E

allowspolarityineither

direction,installationsusing

I.S.barrierswillneedto

observecorrectpolarityatthe

barrierinputside. However,

thebarrieroutputside(i.e.,

sensorconnection)maybe

wiredwithoutregardto

polarity.

2wireflyingleads NotAvailable

2wireterminalblock NotAvailable

4wireflyingleads Red:Power+

Blue:Power

White:DynamicSignal

Black:DynamicSignal+

4wireterminalblock

Figure3:TypicalinstallationforsingleST5484E

seismicvibrationtransmitter

Figure4:Typicalinstallationformultiple

ST5484Eseismicvibrationtransmitters

PWR

+

NOTE:+ANDSYMBOLS

ARENOT

ON

LABEL


12/12

Datasheet



Rev.K(Nov2011)

AdditionalDocumentation

Description MetrixDocumentNumber

Manual M9162

Specifications 9163

InstallationDrawingHazardousAreawithI.S.Barriers(CSA) 9426

InstallationDrawingHazardousAreawithI.S.Barriers(CENELEC) 9278

InstallationDrawingDiv2/Zone2 1086105

MetrixInstrumentCompany

8824FallbrookDrive

Houston,TX77064USA

(281)9401802

www.metrixvibration.com

[email protected]

Trademarksusedhereinarethepropertyoftheir

respectiveowners.

Dataandspecificationssubjecttochangewithout

notice.

2011MetrixInstrumentCompany,L.P.

Documents

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