Samson 3730-0 Manual de servicio

Mounting and

Operating Instructions

EB 8384-0 EN (1300-1609)

Edition August 2017

Series 3730

Type 3730-0 Electropneumatic Positioner

Denition of signal words

DANGER!

Hazardous situations which, if not

avoided, will result in death or seri-

ous injury

WARNING!

Hazardous situations which, if not

avoided, could result in death or se-

rious injury

NOTICE

Property damage message or mal-

function

Note:

Additional information

Tip:

Recommended action



2 EB 8384-0 EN

Contents

EB 8384-0 EN 3

1 Important safety instructions ..........................................................................5

2 Article code...................................................................................................6

3 Design and principle of operation ..................................................................7

3.1 Technical data ...............................................................................................8

4 Attachment to the control valve – Mounting parts and accessories .................12

4.1 Direct attachment.........................................................................................14

4.1.1 Type 3277-5 Actuator ..................................................................................14

4.1.2 Type 3277 Actuator .....................................................................................16

4.2 Attachment according to IEC 60534-6 (NAMUR) ...........................................18

4.3 Attachment according to VDI/VDE3847 .......................................................20

4.4 AttachmenttoType3510Micro-owValve ....................................................26

4.5 Reversingamplierfordouble-actingactuators ..............................................26

4.5.1 Reversingamplier(1079-1118or1079-1119) ............................................28

4.6 Attachingpositionerswithstainlesssteelhousings...........................................28

4.7 Airpurgingfunctionforsingle-actingactuators ..............................................30

5 Connections ................................................................................................35

5.1 Pneumaticconnections..................................................................................35

5.1.1 Signalpressuregauges ................................................................................35

5.1.2 Supplypressure ...........................................................................................35

5.2 Electricalconnections ...................................................................................36

6 Operation...................................................................................................39

6.1 Operatingcontrols .......................................................................................39

7 Start-up and settings ...................................................................................40

7.1 Defaultswitchpositions ................................................................................40

7.2 Fail-safeposition..........................................................................................40

7.3 VolumerestrictionQ.....................................................................................40

7.4 Selectingthetravel.......................................................................................41

7.5 Directionofaction........................................................................................41

7.6 Limitingthesignalpressure...........................................................................41

7.7 Referencevariable .......................................................................................41

7.8 Connectingthepositioner .............................................................................42

4 EB 8384-0 EN

Contents

7.9 Zeroadjustment...........................................................................................42

7.10 Gain...........................................................................................................42

7.11 Adaptingthetravel ......................................................................................42

7.12 Activatingthetight-closingfunction ...............................................................43

8 Maintenance ...............................................................................................43

9 Servicing explosion-protected devices ..........................................................43

10 Dimensions in mm.......................................................................................44

EB 8384-0 EN 5

Important safety instructions

1 Important safety instructions

Foryourownsafety,followtheseinstructionsconcerningthemounting,startupandopera-

tionofthepositioner:

−Thepositioneristobemounted,starteduporoperatedonlybytrainedandexperienced

personnelfamiliarwiththeproduct.Accordingtothesemountingandoperatinginstruc-

tions,trainedpersonnelisreferredtoasindividualswhoareabletojudgetheworkthey

areassignedtoandrecognizepossibledangersduetotheirspecializedtraining,their

knowledgeandexperienceaswellastheirknowledgeoftheapplicablestandards.

−Explosion-protectedversionsofthispositioneraretobeoperatedonlybypersonnelwho

hasundergonespecialtrainingorinstructionsorwhoisauthorizedtoworkonexplosion-

protecteddevicesinhazardousareas.Refertosection9.

−Anyhazardsthatcouldbecausedinthevalvebytheprocessmedium,thesignalpres-

sureorbymovingpartsaretobepreventedbytakingappropriateprecautions.

−Ifinadmissiblemotionsorforcesareproducedinthepneumaticactuatorasaresultof

thesupplypressurelevel,itmustberestrictedusingasuitablesupplypressurereducing

station.

To avoid damage to any equipment, the following also applies:

−Propershippingandstorageareassumed.

−Donotgroundelectricweldingequipmentneartothepositioner.

Note

Devices with a CE marking fulll the requirements of the Directives 2014/30/EU and

2011/65/EU and, depending on the version, 2014/34/EU as well.

The declarations of conformity are included at the end of these instructions.



6 EB 8384-0 EN

Article code

2 Article code

Positioner Type 3730-0 x 00000000x0 0 x0x x

Explosion protection

Without 0

ATEX: II2GExiaIICT6Gb;II2DExiaIIICT80°CDb 1

FM/CSA:ClassI,Zone0AExiaIIC;ClassI,II,III,Div.1,GroupsA-G;

ClassI,Div.2,GroupsA-D;ClassII,Div.2,GroupsF,G/

ExiaIICT6;ClassI,Zone0;ClassII,GroupsE-G;

ExnAIIT6;ClassI,Zone2;ClassII,Div.2,GroupsE-G

ATEX: II2GExtbIIICT80°CDbIP66 5

JIS: ExiaIICT6 7

ATEX: II3GExnAIIT6;II3GExicIICT6;II3DExtcIIICT80°CIP66 8

Housing material

Aluminum 0

Stainlesssteel1.4581 1

Special applications

Without 0

Compatiblewithpaint 1

Exhaustairwith¼NPTconnection,backofhousingsealed 2

Special version

Without 0 0

EAC Ex: 1ExiaIICT6/T5/T4GbX;ExtbIIICT80°CDbX 1 1 4

EAC Ex: 2ExnAIICT6/T5/T4GcX;2ExicIICT6/T5/T4GcX;

 2ExtcIIICT80°CDcX

8 2 0

AttachmentaccordingtoVDI/VDE3747withinterface 6

AttachmentaccordingtoVDI/VDE3747preparedforinterface 7

EB 8384-0 EN 7

Design and principle of operation

3 Design and principle of oper-

ation

Theelectropneumaticpositionerismounted

onpneumaticcontrolvalvesandisusedto

assignthevalveposition(controlledvari-

ablex)tothecontrolsignal(referencevari-

ablew).Thepositionercomparestheelectric

controlsignalofacontrolsystemtothetravel

ofthecontrolvalveandissuesasignalpres-

sure(outputvariabley)forthepneumatic

actuator.

Asupplypressurebetween1.4to6baris

required.Theelectricinputsignalisarefer-

encevariablebetween4to20mA.

Thepositionerisdesigneddependingonthe

correspondingaccessoriesfordirectattach-

menttoType3277Actuatorsorforattach-

menttoactuatorsaccordingtoIEC60534-6

(NAMUR).

Thepositionerconsistsofatravelsensorsys-

temproportionaltoresistance,ananalog

i/pconverterwithadownstreamaircapaci-

tyboosterandtheelectronicswithmicrocon-

troller.

Thepositionofthevalvestemistransmitted

asalineartravelmotionoverthepick-uple-

vertothetravelsensor(2)andsuppliedto

an analog PD controller (3). The PD control-

lercomparesthisactualvalvepositiontothe

1Controlvalve

2Travelsensor

3 PD controller

4DIPswitches

6i/pconverter

7Aircapacitybooster

8Pressureregulator

9 Flowregulator

10 Volumerestriction

Fig.1: Functional diagram

8 EB 8384-0 EN

Design and principle of operation

DCcontrolsignalcomingfromthecontrol

system,e.g.a4to20mAsignal.

Incaseofasystemdeviation,theactivation

ofthei/pconverter(6)ischangedsothat

theactuatorofthecontrolvalve(1)ispres-

surizedorventedaccordinglyoverthe

downstreambooster(7).Thiscausesthe

valveplugtomovetothepositiondeter-

minedbythereferencevariable.

Thesupplyairissuppliedtotheboosterand

thepressureregulator(8).Anintermediate

owregulator(9)withxedsettingsisused

topurgethepositionerand,atthesame

time,guaranteestrouble-freeoperationof

thebooster.Theoutputsignalpressuresup-

pliedbytheboostercanbelimitedbyacti-

vatingtheDIPswitchsettingS5 (4).

Thevolumerestriction(10)andtheswitchS6

areusedtooptimizethepositionerby

adaptingittotheactuatorsizeandchang-

ingthegainfactor.

Tight-closing function:

Afteractivatingthetight-closingfunction(re-

fertosection7.12),thepneumaticactuator

iscompletelylledwithairorventedassoon

asthereferencevariablefallsbeloworex-

ceedsthecorrespondingdeactivatingpoint

of4.5mAor19.5mA.

Inthecaseofthree-wayvalves,thefunction

allowstheplugmovetotheendposition

withfullactuatorthrust.

3.1 Technical data

Type 3730-0 Positioner (the technical data for explosion-protected devices may be restricted by the limits

specied in the test certicates)

Ratedtravel Adjustable: DirectattachmenttoType3277: 5.3to 30mm

 Attachmentacc.toIEC60534-6: 5.3to200mm

Travelrange Adjustablewithintheratedtravel,max.ratio1:5

Referencevariablew Signal range 4 to 20 mA

Split-rangeoperation4to12mAand12to20mA,activatedatDIPswitches

Two-wiredevicewithreversepolarityprotection·Staticdestructionlimit100mA

Minimum current > 3.6 mA

Load impedance Versionwithoutexplosionprotection:≤6V(correspondingto300Ωat20mA),

explosion-protectedversion:≤6V

Supply air

Airqualityacc.toISO8573-1

(edition2001-02):

1.4to7bar(20to105psi)

Max.particlesizeanddensity:Class4·Oilcontent:Class3·Pressuredewpoint:

Class3oratleast10Kbeneaththelowestambienttemperaturetobeexpected

Signalpressure(output) 0baruptothecapacityofthesupplypressure

Limitationtoapprox.2.4barenabledatDIPswitch

EB 8384-0 EN 9

Design and principle of operation

Type 3730-0 Positioner (the technical data for explosion-protected devices may be restricted by the limits

specied in the test certicates)

Characteristic Linear,deviationfromcharacteristic≤1%

Hysteresis ≤1%

Sensitivity ≤0.1%

Directionofaction SelectableoverDIPswitch

Airconsumption,steadystate Independentfromsupplypressureapprox.120ln/h

Air output capacity

Actuatorlledwithair

Actuatorvented

WhenΔp=6bar: 8.5mn³/h,whenΔp=1.4bar:3.0mn³/h KVmax(20°C)=0.09

WhenΔp=6bar:14.0mn³/h,whenΔp=1.4bar:4.5mn³/h KVmax(20°C)=0.15

Permissibleambienttemperature –20to+80°C

–45to+80°Cwithmetalcablegland

Thetemperaturelimitsforexplosion-protecteddevicesmayberestrictedbythe

limitsspeciedinthetestcerticates.

Inuences Temperature: ≤0.15%/10K

Supplyair: None

Vibrations: ≤0.25%upto2000Hzand4gaccordingtoIEC770

Electromagneticcompatibility ComplyingwithEN61000-6-2,EN61000-6-3,EN61326-1andNAMURRec-

ommendation NE 21

Useinsafety-instrumented

systemsacc.toIEC61508

Suitableforuseinsafety-instrumentedsystemsuptoSIL2(singledevice)andSIL3

(withredundantconguration),emergencyshutdownatareferencevariableof

0mA

Degreeofprotection IP 66

Materials Die-castaluminumENAC-AlSi12(Fe)(ENAC-44300)acc.toDINEN1706,

chromatedandplasticcoated

Externalparts:stainlesssteel1.4404/316L

Weight Approx.1kg

Compliance ·

10 EB 8384-0 EN

Design and principle of operation

Summary of explosion protection certicates for Type3730-0 Positioner

Type Certicate Type of protection/comments

-01

ECTypeExamina-

tionCerticate

Number PTB03.ATEX2099

II2GExiaIICT6Gb

II2DExiaIIICT80°CDb

Date 2016-04-19

Number

RU C-DE.08.B.00113

1ExiaIICT6/T5/T4GbX

ExtbIIICT80°CDbX

Date 2013-11-15

Valid until 2018-11-14

-03

CSA Number 1613095 ExiaIICT6;ClassI,Zone0

ClassII,GroupsE,F,G

ExnAIIT6;ClassI,Zone2

ClassII,Div.2,GroupsE,F,G

Date 2005-02-11

FM Number 3021579 ClassI,Zone0AExiaIIC

ClassI,II,III,Div.1,GroupsA,B,C,D,E,F,G

ClassI,Div.2,GroupsA,B,C,D

ClassII,Div.2,GroupsF,G

Date 2004-12-01

-05

ECTypeExamina-

tionCerticate

Number PTB03.ATEX2099

II2DExtbIIICT80°CDbIP66

Date 2016-04-19

-07

JIS

Number TC17330

ExiaIICT6

Date 2017-07-29

Valid until 2020-07-28

-08

ECTypeExamina-

tionCerticate

Number PTB03.ATEX2179X II3GExnAIIT6

II3GExicIICT6

II3DExtcIIICT80°CIP66

Date 2013-09-17

Number

RU C-DE.08.B.00113

2ExnAIICT6/T5/T4GcX

2ExicIICT6/T5/T4GcX

2ExtcIIICT80°CDcX

Date 2013-11-15

Valid until 2018-11-14

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Samson TROVIS 3730-3 Manual de usuario

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