Series 3731Type 3731-3Electropneumatic Ex d Positionerwith HART®communicationMounting andOperating InstructionsEB 8387-3 ENFirmware version 1.53Editio
Binary inputThe positioner has an optional binary input.The following actions can be performed overthe binary input:4Transfer switching state [default
SAMSON AG · MESS- UND REGELTECHNIKWeismüllerstraße 3 · 60314 Frankfurt am Main, GermanyPhone: +49 69 4009-0 · Fax: +49 69 4009-1507Internet: http://ww
Additional information on TROVIS-VIEW(e.g. system requirements) can found on theSAMSON website and in the Data SheetT 6661 EN.EB 8387-3 EN 11Design an
3.3 Technical data12 EB 8387-3 ENDesign and principle of operationType 3731-3 Ex d Positioner (technical data in test certificates additionally apply
EB 8387-3 EN 13Design and principle of operationType 3731-3 Ex d Positioner (technical data in test certificates additionally apply for explosion-prot
14 EB 8387-3 ENDesign and principle of operationAdditional equipmentOptional binary output,software limit switch, galvanically isolatedConnection: Opt
4 Attachment to the controlvalve – Mounting parts andaccessoriesWARNING!Attach the positioner, keeping the followingsequence:1. Mount the positioner o
16 EB 8387-3 ENAttachment to the control valve – Mounting parts and accessoriesTravel tablesNote: The lever M is included in the scope of delivery.Lev
4.1 Direct attachment4.1.1 Type 3277-5 ActuatorRefer to Table 1 on page 30 for requiredmounting parts and accessories.Actuator with 120 cm²NOTICEIf a
it in the hole for pin position 25 andscrew tight.9. Insert formed seal (15) into the grooveof the positioner housing, pressing thefour retaining ring
EB 8387-3 EN 19Attachment to the control valve – Mounting parts and accessories911Supply 9Output 3856417761010.1321156.11.11.214811.1AA-AAFig. 4 · Di
2 EB 8387-3 ENDANGER!indicates a hazardous situation which, if notavoided, will result in death or serious injury.WARNING!indicates a hazardous situat
4.1.2 Type 3277 ActuatorRefer to Table 2 on page 31 for the requiredmounting parts and accessories.Actuators with 175 to 750 cm²Mount the positioner o
EB 8387-3 EN 21Attachment to the control valve – Mounting parts and accessories21710 141512311SUPPLY13B1.11.21212.11212.212.11216161612.2SUPPLYAnsich
9. Mount cover (11) on the other side.Make sure that the vent plug (11.1)points to the back when the controlvalve is installed to allow any con-densed
EB 8387-3 EN 23Attachment to the control valve – Mounting parts and accessories10111114.133.116151411.21.129.196786.1Fig. 6 · Attachment according to
6.2 Screw the long follower pin (2) in-cluded in the mounting kit in thepin position of the required lever(1) assigned in the table.6.3 Place lever (1
EB 8387-3 EN 25Attachment to the control valve – Mounting parts and accessoriesLever S1 Lever1.1 Nut1.2 Disk spring2 Follower pin3 Follower plate6 Con
4.4 Attachment to rotaryactuatorsRefer to Table 4 on page 33 for the requiredmounting parts and accessories.Both mounting kits contain all the necessa
EB 8387-3 EN 27Attachment to the control valve – Mounting parts and accessories66.17811.11.224.1310.1101154.344.24.135.1510.1104.344.2Fig. 9 · At
4.5 Reversing amplifier fordouble-acting actuatorsFor the use with double-acting actuators, thepositioner must be fitted with a reversingamplifier, e.
EB 8387-3 EN 29Attachment to the control valve – Mounting parts and accessoriesA11.5 1.61.3 1.2 1.1 1 1.6ZA21.4A1A2ZA1Output 38 Supply 9Output 38 Supp
Contents1 Important safety instructions . . . . . . . . . . . . . . . . . . . . . . 62 Article code . . . . . . . . . .
4.6 Required mounting parts and accessories30 EB 8387-3 ENAttachment to the control valve – Mounting parts and accessoriesTable 1 · Direct attachment
EB 8387-3 EN 31Attachment to the control valve – Mounting parts and accessoriesTable 2 · Direct attachment to Type 3277 (Fig. 5) Order no.Mountingpart
32 EB 8387-3 ENAttachment to the control valve – Mounting parts and accessoriesTable 3 · Attachment to NAMUR ribs or control valves with rod-type yoke
EB 8387-3 EN 33Attachment to the control valve – Mounting parts and accessoriesTable 4 · Attachment to rotary actuators (Figs. 8 and 9)Order no.Mounti
5 ConnectionsWARNING!Mount the positioner, keeping the followingsequence:1. Mount the positioner on the control valve2. Connect the supply air3. Conne
5.1.1 Signal pressure gaugesTo monitor the supply air (Supply) and sig-nal pressure (Output), we recommend thatpressure gauges be attached (see access
5.2 Electrical connections36 EB 8387-3 ENConnectionsDANGER!Risk of electric shock and/or the formation of an explosive atmosphere!4For electrical inst
EB 8387-3 EN 37ConnectionsConnection to conform with the type of protection Ex i (EN 60079-11):For connection to a certified, external instrinsically
Cable entryThe threaded connections for the terminalcompartment are designed with ½ NPT orM20x1.5 threads.The electrical connections are screw termi-n
EB 8387-3 EN 39ConnectionsA B CAOption+11...35 V DC_A B C+_A B CA B C0...24 V DCA B C4...20 mAHART®SignalA B CL/+0...40 V DC0...28 V ACN/_Fig. 12 · E
7.5.1 Initialization based on MAX maximum range . . . . . . . . . . . . . 517.5.2 Initialization based on NOM nominal range . . . . .
5.2.1 Establishing communicationCommunication between PC and the FSKmodem or handheld communicator andpositioner is based on the HART®protocol.Type Vi
Note:Communication errors may occur when theprocess controller/control station output isnot HART-compatible.For adaptation, the Z box (order no.1170-2
6 Operator controls andreadings6.1 Rotary pushbuttonThe rotary pushbutton ( ) is located under-neath the front protective cover.The positioner is oper
each error. Classifications include “Nomessage”, “Maintenance required”,“Maintenance demanded”, “Out of spec-ification” and “Maintenance alarm“ (seese
44 EB 8387-3 ENOperator controls and readingsCondensed state:Maintenance alarmDesignationPositionParameterLimit switchAlarm 1Manual mode Closed-loop o
6.4 HART®communicationThe positioner must be supplied with at least3.8 mA current.A DTM file (Device Type Manager) conform-ing to the Specification 1.
7Start-up – SettingsWARNING!Attach the positioner, keeping the followingsequence:1. Mount the positioner on the control valve2. Connect the supply air
NOTICEPerform the start-up settings in the same se-quence as listed (section 7.1 to section 7.5).7.1 Adapting the displayThe reading on the display ca
7.3 Checking the operatingrange of the positionerTo check the mechanical attachment, thevalve should be moved through the operat-ing range of the posi
7.4 Allocating the closedpositionTaking into account the type of valve and theoperating direction of the actuator, allocatethe closed position (0 % tr
Modifications to positioner firmware compared to the previous version1.41 (old) 1.42 (new)After performing a reset to default values, the allocation o
NOTICEIf the positioner is mounted onto another ac-tuator or its mounting position is changed,reset the positioner to its default settings be-fore re-
7.5.1 Initialization based on MAXmaximum rangeThe positioner determines travel/angle ofrotation of the closing member from theCLOSED position to the o
Enter pin position:Pin positionDefault: NoTurn→Code 4Press , Code4 blinks.Turn→Pin position on lever (see rele-vant section on attachment).Press . The
PressSelect initialization mode:Initialization modeDefault: MAXTurn→Code 6Press , Code6 blinks.Turn→NOMPress to confirm the NOM initializationmode.Sta
Turn until the OPEN position of the valveis reached.Press to confirm the OPEN position.Enable configuration:Note: If no settings are entered within120
7.5.4 SUB substitute calibrationA complete initialization procedure takesseveral minutes and requires the valve tomove through its entire travel range
Select initialization mode:Initialization modeDefault: MAXTurn→Code 6PressTurn→SUBPress to confirm the SUB initializationmode.Enter direction of actio
Blocking positionDefault: 0Turn→Code 34Press , Code 34 blinks.Turn→Closing direction (CCL counter-clockwise/CL clockwise)PressTurn→Code 35Press , Code
PressThe positioner changes to automatic mode(AUTO). The current valve position is indi-cated in % on the display.Note: If the positioner shows a tend
Pressdisplay: MAN, Code 0 blinks.Turn→InitPressThe setting of the fail-safe position AtO orAtC appears.Keep pressed down for 6 seconds.Zero calibratio
1 Important safety instructionsFor your own safety, follow these instructions concerning the mounting, start up and opera-tion of the positioner:4The
8 OperationWARNING!The actuator stem moves while the positioneris being operated.Do not touch the actuator stem or obstruct itto avoid risk of injury
8.2 Operating modes8.2.1 Automatic (AUTO) andmanual (MAN) modesAfter initialization has been completed suc-cessfully, the positioner is in automatic m
8.2.2 Fail-safe position (SAFE)If you want to move the valve to fail-safe po-sition determined during start-up (see sec-tion 7.4), proceed as follows:
4Out of specificationThe positioner is operated outside speci-fied operating conditions.Note: If an event is assigned to the “Nomessage” status, this
9 MaintenanceThe positioner does not require any mainte-nance.There are filters with a 100µm mesh size inthe pneumatic connections for supply andoutpu
11 Code listCodeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 pri
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
2 Article codePositioner Type 3731 - 3 x x x x x x x 0 0 x
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
Codeno.Parameter – Display, values[default setting]DescriptionNote: Codes with marked with an asterisk (*) must be enabled with Code 3 prior to config
Initialization errorsError codes – Recommended action Condensed state message active, when prompted, Err appears.When fault alarms exist, they are dis
Error codes – Recommended action Condensed state message active, when prompted, Err appears.When fault alarms exist, they are displayed here.53Initial
Operational errorsError codes – Recommended action Condensed state message active, when prompted, Err appears.When fault alarms exist, they are displa
Hardware errorsError codes – Recommended action Condensed state message active, when prompted, Err appears.When fault alarms exist, they are displayed
3 Design and principle ofoperationThe electropneumatic Ex d positioner ismounted on pneumatic control valves. It isused to assign the valve stem posit
Error codes – Recommended action Condensed state message active, when prompted, Err appears.When fault alarms exist, they are displayed here.65Hardwar
Data errorsError codes – Recommended action Condensed state message active, when prompted, Err appears.When fault alarms exist, they are displayed her
Error codes – Recommended action Condensed state message active, when prompted, Err appears.When fault alarms exist, they are displayed here.75Info pa
Diagnosis errorsError codes – Recommended action Condensed state message active, when prompted, Err appears.When fault alarms exist, they are displaye
12 Dimensions in mm84 EB 8387-3 ENDimensions in mm701546341412295345328NPT ½, ¼5858236Output SupplyFig. 16a · Attachment to IEC 60534-6 and direct at
EB 8387-3 EN 85Dimensions in mmReversing amplifier8052Output Y1Output Y2Supply (9)Output Y1Output Y25686130801663086Ø 101Fig. 16b · Attachment to rota
12.1 Fixing levels according to VDI/VDE 3845 (September 2010)86 EB 8387-3 ENDimensions in mmAM6CB25MminØdØDLevel 2 (bracket surface)Level 1 (actuator
13 Appendix13.1 Selecting the valve characteristicThe characteristics that can be selected in Code 20 are shown in following in graph form.Note: A cha
SAMSON butterfly valve linear(select characteristic: 3)SAMSON butterfly valve equal percentage(select characteristic: 4)VETEC rotary plug valve linear
EB 8387-3 EN 89
software or on site at the positioner. A con-stant air stream to the atmosphere is createdby the flow regulator (9) with a fixed setpoint. The air str
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IndexAAccessories. . . . . . . . . . . . . . . . . . . 30, 32Additional equipmentbinary contact . . . . . . . . . . . . . . . . . . 9binary input. . .
MMaintenance. . . . . . . . . . . . . . . . . . . . . 64Malfunction. . . . . . . . . . . . . . . . . . . . . . 62Manual mode . . . . . . . . . . . . .
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