Hoja De Datos Transmisor Multivariable 3808 MTV

User Manual: Hoja-de-Datos Transmisor-Multivariable-3808-MTV

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Product Data Document
225DS-26J / D301301X012
June 2013
Remote Automation Solutions
3808 MVT Multivariable Transmitter
Model 3808-10A With P/T Variables
The 3808 MVT Multivariable
Transmitter features accurate measurement
of gauge pressure and temperature.
Featuring:
• Excellentmeasurementperformanceover
thefullrangeofoperatingpressureand
temperatureconditions
• Extremelylowpowerconsumption—perfect
forremotesiteswithbatteryandsolarpower
systems
• “Bilingual”NetworkingviaBSAPandModbus
protocolswithRS485interface—operatesas
anRTUnodeonSCADAnetworks
• Intrinsicallysafeandexplosionprooffor
operationinClassI,Division1hazardousareas
• “Wetend”sensorassemblyisindependent
ofthe“topend”assembly
• Twoversions:RS485withRS232portfor
congurationorAnalogOutputwithFSKsignal.
Introduction
The3808MVTisEmersonProcess
Management’sanswertoindustrydemandsfora
transmitterwithhighreliability,highperformance
overrealworldremotepressureandtemperature
conditions,easeinuse,“networkability”andvery
lowpowerconsumption.The3808MVThasbeen
designedtoprovidethehighestvalueinterms
ofalluserconsiderations,includingpurchasing,
installation,operationandmaintenance.
Tomaximizemeasurementaccuracy,the3808
combinesawetendwithalowreference
uncertaintyof0.075%URL,withadesignthat
minimizeseffectsofpressureandtemperatureover
thefullrangeofoperatingconditions.
Forremotesitessuchasthoseintheenergy
andwaterindustries,powerconsumptionhas
beenakeyconsideration.Costsofbatteriesand
solarpanelsareproportionaltocurrentdrawand
manyusersaresurprisedatthecapitalexpenses
associatedwithelectronics,whichhavenotbeen
designedtoconservepower.Thesophisticated
designemployedbythe3808MVTkeepscurrent
drawwellbelow2mAandwithapowersourceas
lowas5Vdc.
Forremotesites,powerbudgetingisoftenvery
tight.Sincethepowerconsumptionissolow,
the3808MVTcanevenbeaddedtoexisting
sites,whichweredesignedwithnoextracapacity
forpower.
WhiletheBSAP(BristolSynchronousand
Asynchronous)protocolensurescompatibilitywith
Emerson’smeasurementandSCADAsystems,
Modbusprovidescompatibilitywithawidevariety
ofcontrollers,owcomputers,RTUdevicesand
SCADAsystemsfromnumeroussuppliers.
Functionality Overview
Emerson’s3808MVTprovidesthefollowingbasic
operations
• Conversionofsensorreadingsfromthe“wet
3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
2www.EmersonProcess.com/Remote
end”pressuresensorassemblyintoaccurate
oatingpointpressurevalues.Conversion
calculationsutilizecorrectioncoefcients
containedinthesensorassemblyandare
performedoncepersecondforeachprocess
variable
• Conversionofrawreadingsfromanon-board
A/DintoanaccurateoatingpointRTDvalue.
RTDconversionsareperformedonceper
second
• Upto19200baud,2-wireRS-485serial
communicationsinterface,ora1200baud,
FSKmodeminterfaceviathe4-20macurrent
loopforNetworkcommunication
• LocalRS-232serialcommunicationsinterface
xedat19200baud.(ConnectingtotheRS-232
communicationsinterfacedisablestheRS-485
communications.)
• AsubsetoftheEmersonBSAPRDBand
Peer-to-Peercommunicationsinterface:
CompletesetofUser/HostInterface
functionsforConguration,Calibration,
andDataCollection
Floatingpointvaluesreturnedindividually,
orinpre-denedLists
FloatingpointvaluesavailableforGP,T,
SensorTemperature,andErrorStatus
Floatingpoint,Logical,orStringvalues
alsoavailableforotheruserconguration
parameters
• Optional,4-to-20mAAnalogOutput:
LinearorSquareRootMode
ReversibleOutputAction
Maybecontrolledexternally
toprovidearemoteAO
• Optional,on-boardLCDdisplaywithP
andTinformation
Physical Overview
Service:Level,pressure,temperature
measurementsforliquidsandgases.
DiaphragmMaterial:316SSorHastelloyC
ConnectionMaterial:316SSorHastelloyC
FillMedia:DC200SiliconeOil
ProcessConnections:½”-14NPTmalepipe
tapand⅛”-27NPTfemalepipethreadonsingle
connection
ElectricalConnections:½”NPTConduitConnection
Housing:LowCopperAluminumwithepoxypaint
NEMA4Xexplosionproof.
Localindication:4-½-DigitLCDdisplaylinearor
squarerootinengineeringunits.
RTDsensor:3-wireplatinum100-ohmperDIN
4376025feetmax.
Userconnections:10-terminal(2-rows)tri-barrier
stripfor+power,-power,RTD+,RTD-,RTD-,TXD,
andRXD.
Power Supply Information
OperatingVoltageRange:5–42Vdc
Current Draw:
WithRS485:Lessthan2mA
WithFSK,butwith4–20mAoutputdisabled:
Lessthan3.2mA
Turn-on time:
Measuredinputvariableswillbewithin
specicationslessthantwosecondsafter
powerisappliedtothe3808MVT.
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3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
Accuracy and Performance
Specications
Allspecicationsareforthedigital,oating-point
signal.
Gauge Pressure
Combinedeffectsofnonlinearity,nonrepeatability
andhysteresisatreferencepressureandoverthe
operatingtemperaturerange:
GPlinearmode:±0.075%ofCalibratedSpanor
0.015%ofURL,whicheverisgreater.
Temperatureeffectongaugepressure:
±0.21%URLmaximumcombinedshiftofzero
andspanwithanambienttemperaturechange
of60ºC(108ºF)
LongTermStabilityatConstantConditions:
±0.1%URL/Yeartypical
Rippleandnoise:PerISA50.1Section4.6
Process Temperature - RTD Interface
Athree-wireplatinumRTDperDIN43760is
supported.Thetemperature,T,indegreesCelsius
iscalculatedusingtheResistancevs.Temperature
TablesaccordingtotheDINEN60751standardfor
ClassA&BRTDs.TheDINEN60751equationis:
R(t)=R0*(1+At+Bt2)
Where:
A=3.9083*10-3oC-1
B=-5.775*10-7oC-2
Ro=100ohms
Inaddition,theusermayentertheR0,A,andB
coefcientsofacustomcalibratedRTD,another
platinumstandardoradifferentmaterial(Nickel,
BalcoorCopper).DuringtheRTDcalibration,the
UserwillbeabletosettheR0,A,andBcoefcients,
restorethefactorydefaultforthesecoefcients,and
calibratetheinternalReferenceresistor.
Process Temperature Input Specications
(fortheinterface,only,notincludingtheRTD
probeorwiring)
RTDConversionAccuracy:±0.1°C,or±0.1%of
reading,whicheverisgreater
AmbienttemperatureeffectonRTDmeasurement:
±0.01°C/ºCmax
LongTermStabilityatConstantConditions:
±0.25ºC/monthmax
Analog Output Specications
Non-linearity:0.1%max
Temperatureeffects:+/-0.25%FullScaleover60
degreesC.
Environmental Specications
OverPressureLimit:Equaltothegaugepressure
upperrangelimit(URL).
Temperaturelimits:
WetEnd:-40to+85ºC
Electronics:-40to+85°C
WithDisplay:-30to+70ºC
StorageTemperature:-40to+100°C
Humiditylimits:Whencoversareproperly
installed,unitwillwithstand0to100%RH
(NEMA4Xenclosure)
Vibration:±0.1%URL/gmax10-500Hzinany
axisperSAMAPMC-33-1C
Electromagneticcompatibility:
Conditions:Currentoutput(only)twistedpairwires
includesRTD.Coversinstalledandwiringrunin
groundedconduit.10V/M,20-500MHZperSAMA
PMC-33-1C:
GP:±0.25%URL
RTDTemperature:±1°C
3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
4www.EmersonProcess.com/Remote
Liquid Crystal Display (LCD)
TheLCDdisplaysthemeasuredvariablesforP
andT.Thedisplaywillcontinuallycyclethough
allmeasuredvariables.ThevalueandEngineer-
ingUnitsforaparticularvariablewillbedisplayed
forthreeseconds.Anannunciatorindicateswhich
pressurevariableisbeingdisplayed.
TheLCDprovides41/2digitsofdisplayprecision
withadecimalpoint.ThefollowingEngineering
Unitsareincluded:
• °C
• °F
• BAR
• psi
• inH2O@60°F
• kg/cm2
• kPa
User Interface for the 3808 MVT
Usingalap-toppersonalcomputer,eldpersonnel
canquicklycalibrateandcongurea3808MVT
transmitter.Thepersonalcomputerinterfacesto
theRS232port.Meanwhile,theRS485portwiring
neednotbedisconnected.RS485communication
isdisabledonlywhilethePCcableisconnectedto
theRS232terminals.
Emerson’sLocalViewCalibration
Toolincludesallcalibrationandconguration
operations.Thistoolwillbefamiliarwithusers
ofSmartkitaswellasallotherEmersonow
computersandprovidesusersofallEmerson
measurementproductsaconsistentand
compatibleHuman-MachineInterface(HMI).
AvarietyofUserInterfacefeaturesareprovided
bythe3808MVT.Theseinclude:
• SetCommunicationsBaudRate
• SetBSAPLocalAddress
• SetBSAPGroupNumber
• SetModbusNodeAddress
• SetModbusMode(ASCII/RTU)
• Enable/DisableStaticPressureReading
• Enable/DisableRTDTemperatureReading
• ReadcurrentDP/GP,SP,T,Sensor
Temperature,andStatusvalues
• ReadDP/GPandSPUpperRangeLimits
• CalibrateZero/SpanforDP/GPandSP
• CalibrateZeroforRTD
• CongureRTDCoefcients
• Congure4-20maAnalogOutput
Enable/Disable
SelectForward/ReverseActing
SelectOutputVariable(DP/GP,SP,User
Dened,orNone)
CalibrateZero/Span
• SelectEngineeringUnitsforDP/GP,SP,T
• SetFloatingPointDampingFactor
• DisplayTransmitterInformation(Traceability
information,RangeCodes,FirmwareRevision)
Communication Interface
BSAP Interface
The3808MVTwillactasanimmediateresponse
BSAPSlavedevice.The3808MVTwillfunction
asaterminalnodeonlyinaBSAPNetwork.BSAP
Globalmessagesreceivedwiththe3808MVT’s
LocalAddresswillbeprocessedbythe3808MVT.
Notethatpassthrough,orrouting,ofBSAPGlobal
messages,ExpandedBSAPmessages,andTime-
Sync/NodeRoutingTablemessagesarenotsup-
ported.
AsubsetoftheRDBandPeer-to-peermessages
aresupported.ThiswillprovidetheuserbothRDB
andPeer-to-PeerListaccesstothe3808MVTPro-
cessvariablesandparameters.
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3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
MODBUS Interface
The3808MVTwillactasaModbuscompatible,
slavedevice.The3808MVTprovidessupportfor
bothModbusASCIIandModbusRemoteTerminal
Unit(RTU)transmissionmodes,utilizingasubsetof
theRead/WritecommandsavailableviaModbus.
ToprovidesupportforavarietyofModbuscompat-
iblehostcontrollers,the3808MVTdataavailable
viaModbusaremappedintoModbusCoils/Regis-
ters.ToaccommodatethedifferenttypesofModbus
hostsavailable(i.e.standardModbus,ENRON
Modbus)oatingpointdataitemsaremappedto
severaldifferentModbusRegisteraddressranges.
Thisprovidesboth16-bitand32-bitregisteraccess
usingtheappropriateregisteraddressandfunction
code.
Accessories
Emerson’sOpenBSI/LocalView–
CalibrationandcongurationsoftwareforaPC
CDpartnumber:395575-02-8
PC-to-3808-MVTCable–ConnectstotheRS
232portonthe3808MVT,10foot,partnumber:
396596-01-0
TransmitterInterfaceUnit(TIU)–Forcompatibility
withthe3508,thismoduleisusedtoconnectaPC
totheFSKsignalonthe3808MVT.
PartNumber389959-01-4
FortheTIU,pleasespecifythemodemcablelength:
6foot–partnumber390929-01-8
12foot–partnumber390929-02-6
25foot–partnumber390929-03-4
Bendable RTD
TheusercanselectabendableRTDthatattaches
tothetransmitterviaanarmoredcableof6-foot,
15-footor25-footlength.Theindividualwires
connecttoterminationsontheterminationplate.
TheRTDassemblyalsoincludesatting,which
isinstalledintheconduitport.
Iforderedalongwiththetransmitter,thebendable
RTDassemblywillbeshippedinthesameboxas
thetransmitter.
ThebendableRTDisa“onesizetsall”solution
thatisperfectformostapplicationsandexcellentfor
depot-levelinventorysituationsinwhichtheultimate
installation(and,therefore,thermowelldepth)isnot
necessarilyknown.
The12”probecanquicklybeinsertedina
thermowell,whereupontheusercantighten
theincludedttingtolockitinplaceandbend
theexcesslengthoutoftheway.
Notethatathermowellisrequiredforthisbendable
RTD!
NotealsothatthebendableRTDassemblyisapproved
onlyforuseinClassI,Division2hazardousareasand
isnotexplosionproof.
3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
6www.EmersonProcess.com/Remote
Model Number: 3808-10A - A - B - C - D - E - F - G - H - J - J1 - K
3808-10A
DESCRIPTION CODE
A B
Input Range (Gauge Pressure)
PSI 3808MVT A B
10 0-15"H20to300"H20 14
0-1.25to0-25PSI 20
0-5to0-100PSI 22
0-15to0-300PSI 23
0-50to0-1000PSI 25
0-150to0-3000PSI 26
0-250to0-5000PSI(withindicationto10,000PSI) 27
0-100to0-2000PSI 28
0-200to0-4000PSI 29
C Diaphragm Material X3508DIAPH C
20 316StainlessSteel 1
 HastelloyC 2
D Filling Media D
30 DC200Silicone 1
E Comm / Output Options E
40 4-20mAcurrentoutput/FSKNote:LocalcalibrationrequiresTIU. 1
RS485Note:LocalcalibrationrequiresRS232cable. 2
F Local Indication X3808LIND F
50 None 0
41/2DigitLCD 1
G Mounting Bracket XTRANMTBKT G
60 None 0
WithMountingBracket 1
HCertication H
70 UL/CULClassI,Division1,GroupsC&D;ClassI,Division2,GroupsA,B,C,D 1
7www.EmersonProcess.com/Remote
3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
J Warning Plate J
80 None 0
 Russian 1
J1 RTD / Cable Assembly J1
None Please refer to the notes, below, concerning 0
WithRTDand6-footCable the RTD Cable Assemblies. 1
85 WithRTDand15-footCable 2
WithRTDand25-footCable 3
DESCRIPTION CODE
Ifselectedin"J1"above,theRTD/Cableassemblywillbeshippedinthesameboxasthe
transmitter.DuetoULrestrictions,theycannotbeshipped"pre-connected."
IMPORTANT: TheseparticularRTDassembliesarenotexplosion-proofbutareapproved
forClassI,Division2hazardousareas.Forexplosion-proofRTDcomponents,please
referto"RTDSensorsandRelatedAccessories"inthepricebook.
KFactory Conguration Options K
88 UsetheStandard,Defaults-Please DO NOT ll-in attachment 3800-A010 0
SpecifyOtherCongurationSettings-Please proceed to attachment 3800-
A010. 1
Tospecifya3808MVTthatisapprovedbyIndustryCanadaforcustodytransferinstallations
whenusedinconjunctionwithaControlWaveEFMorControlWaveXFC,pleaseusethe
followingmodelnumberandattachmentnumber:
3808-10A-28-112-001-000
3808-B-1
Model Number: 3808-10A - A - B - C - D - E - F - G - H - J - J1 - K
3808-10A ModelSpecicationContinued
3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
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Attachment Number: 3800-A - AB - CD - E - F - GH - J - KL - M - N - P - R - T - U
3800-A
DESCRIPTION CODE
A B DP Units for 3808-30A or GP units for 3808-10A A B
InH2O(Default) Special Note for 25 PSI DP range: If you use 00
PSI this attachment, "In H2O" become the default 01
mmH2O units. If you want "PSI," you must specify 02
ftH20 that, here. 03
inHg 04
mmHg 05
90/160 KPa 06
MPa 07
BAR 08
mBAR 09
g/cm2 10
kg/cm2 11
C D SP Units for 3808-30A - Please note that this eld is N/A for the 3808-10A CD
InH2O 00
PSI(Default) 01
mmH2O 02
ftH20 03
inHg 04
mmHg 05
92/170 KPa 06
MPa 07
BAR 08
mBAR 09
g/cm2 10
 kg/cm2 11
E Temperature Units for RTD Input E
DegreesC(Default) 0
94/200 DegreesF 1
F Communications Baud Rate F
9600(Default) 0
1200 1
96/205 2400 2
4800 3
19,200 4
9www.EmersonProcess.com/Remote
3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
Attachment Number: 3800-A - AB - CD - E - F - GH - J - KL - M - N - P - R - T - U
3800-A
DESCRIPTION CODE
G H BSAP Local Address GH
Usingtwodigits,includingaleadingzerofor1-9,pleasespecifytheaddressin
98/210 'GH,'ie."01"through"32."Forreference,thedefaultaddressis1.
J BSAP Group Number J
100/300 Pleasell-inasingle-digitbetween1and8in'J.'Group1isthedefault.
K L MODBUS Node Address KL
Usingtwodigits,includingaleadingzerofor1-9,pleasespecifytheaddressin
102/310 'GH,'e.g."01"through"32."Forreference,thedefaultaddressis1.
M MODBUS Mode M
ASCII(Default) 0
104/320 RTU 1
N ENABLE / DISABLE 4 - 20 mA Output N
ENABLE(Default) 0
106/330 DISABLE 1
P 4 - 20 mA LINEAR or SQUARE ROOT P
LINEAR(Default) 0
108/340 SQUAREROOT 1
R 4 - 20 mA FORWARD or REVERSE ACTING R
FORWARD(Default) 0
110/350 REVERSE 1
T 4 - 20 mA OUTPUT VARIABLE T
DP(in3808-30A)orGP(in3808-10A)(Default) 0
112/360 SP(3808-30Aonly) 1
TEMPERATURE 2
U RTS DELAY U
10msDefault 0
115/365
50msthatisknowntowork
bestforChesapeakeCWLP
usingModbus
1
3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
10 www.EmersonProcess.com/Remote
3808-10A with Mounting Bracket Shown
DIMENSIONED DRAWING
11www.EmersonProcess.com/Remote
3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
Simplied Diagram of 3808 MVT with 4 – 20 mA Signal
Simplied Diagram of 3808 MVT with RS 232 and RS 485 Interface
3808 Multivariable Transmitter
Product Data Document
225DS-26J / D301301X012
June 2013
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3808 MVT Terminal Block Assignments
3808 MVT Wire Routing
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MultivariableTransmitter
Product Data Document
225DS-26J/D301301X012
June2013

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