1、Associated Information Sheet u T 8350 ENEdition December 2013Data Sheet T 8384-3Fig. 1: Type 3730, direct attachment to Type3277 Pneumatic ActuatorFig. 2: Type 3730, attachment to NAMUR ribFig. 3: Type 3730, attachment according to VDI/VDE3845Fig. 4: Type 3730 External position sensor with Type 3510
2、 Micro-flow ValveThe positioner ensures a predetermined assignment of the valve position (controlled variable x) to the input signal (reference vari-able w). It compares the input signal received from a control system to the travel or rotational angle of the control valve and issues a corresponding
3、output signal pressure (output variable y).Special features Simple attachment to all common linear and rotary actua-tors with interface for SAMSON direct attachment (Fig.1), NAMUR rib (Fig.2), valves with rod-type yokes according to IEC60534-6-1 or to rotary actuators according to VDI/VDE3845 (Fig.3
4、) Any desired mounting position of the positioner Simple single-knob, menu-driven operation LCD easy to read in any mounted position due to selectable reading direction Configurable with a PC over the SSP interface using the TROVIS-VIEW software Variable, automatic start-up with four different initi
5、alization modes Preset parameters - only values deviating from the standard need to be adjusted Calibrated travel sensor without gears susceptible to wear Sub initialization mode (substitution) allows the positioner to be started up in case of emergency whilst the plant is running without the valve
6、moving through the whole travel range Permanent storage of all parameters in EEPROM (protected against power failure) Two-wire system with a small electrical load of 410 Adjustable output pressure limitation Activatable tight-closing function Continuous monitoring of zero point Integrated temperatur
7、e sensor and operating hours counter Two standard programmable position alarms Self-diagnostics; alarms as condensed state conforming to NAMUR Recommendation NE107, issued over a fault alarm contact or optional analog position transmitter Integrated EXPERTplus diagnostics (T 8389 EN) suitable for th
8、rottling and on/off valves and with additional partial stroke test for valves in safety-instrumented systems Certified according to IEC 61508/SILSeries 3730Type 3730-3 Electropneumatic Positioner with HART communicationApplicationSingle-acting or double-acting positioner for attachment to pneumatic
9、control valves. Self-calibrating, automatic adaptation to valve and actuator.Reference variable 4 to 20 mARated travels 3.6 to 200 mmOpening angle 24 to 100Versions Type 3730-3 Electropneumatic positioner with LCD, on-site operation, local communication with SSP interface, EXPERTplus diagnostics, wi
10、th HART communication Type 3731-3 Ex d positioner As above, with flameproof enclosure See Data Sheet uT8387-3EN2 T 8384-3Additional options Inductive limit switch with proximity switches Analog position transmitter with two-wire transmitter Forced venting function with solenoid valve Binary input Ex
11、ternal position sensor (Fig.4) Analog input x Stainless steel housing Leakage sensor to monitor the seat leakagePrinciple of operationThe positioner is mounted on pneumatic control valves and is used to assign the valve position (controlled variablex) to the control signal (reference variablew). The
12、 positioner compares the electric control signal of a control system to the travel or rotational angle of the control valve and issues a signal pressure (output variabley) for the pneumatic actuator.The positioner mainly consists of an electric travel sensor system (2), an analog i/pmodule with a do
13、wnstream air capacity booster and the electronics with the microcontroller (5).When a system deviation occurs, the actuator is either vented or filled with air. If necessary, the signal pressure change can be slowed down with a Q-restriction that can be connected as necessary. The signal pressure to
14、 the actuator can be limited by software to 1.4, 2.4 or 3.7bar.A constant air stream with a fixed set point to the atmosphere is created by flow regulator (9) with a fixed set point. The i/p module (6) is supplied with a constant upstream pressure by the pressure reducer (8) to make it independent o
15、f the supply air pressure.OperationThe positioner is operated with a user-friendly rotary pushbut-ton. The parameters are selected by turning the knob, pushing it activates the required setting. In the menu, all parameters are listed in one level, eliminating the need to search in submenus. All para
16、meters can be checked and changed on site.All values are displayed on the LCD. The reading direction of the LCD can be rotated by 180.The closing direction of the control valve is indicated to the positioner by setting the slide switch Air to open/Air to close. It assigns the CLOSED position of the
17、control valve to the 0% reading.The INIT key activates initialization which is started according to the ready adjusted parameters (autotune). After initializa-tion is completed, the positioner immediately starts closed-loop operation.To configure the positioner with SAMSONs TROVIS-VIEW software, the
18、 positioner is equipped with an additional digital interface to be connected to the RS-232 interface of a PC.All parameters can be accessed using HART communication.wxQ%SmmGGPDSerialInterface16132215A2A3BEA1112421FSK201953126781011414wxy24V DC917181Control valve 2Travel sensor 3Controller 4A/D conve
19、rter 5Microcontroller 6i/p module 7Booster 8Pressure regulator 9Flow regulator10Volume restriction11Inductive limit switch (option)12Solenoid valve (option)13Position transmitter or binary input (option)14Software limit switches15Fault alarm output16LCD17Actuation of solenoid valve18Electrical isola
20、tion (option)19D/A converter20Communication interface21HART connection22Binary input BE (option)Fig. 5: Functional diagram of Type 3730-3 PositionerT 8384-3 3Table 1: Table 1 Technical data for Type 3730-3 PositionerType 3730-3 PositionerTechnical data in test certificates additionally apply to expl
21、osion-protected devicesTravelAdjustableDirect attachment to Type3277 Actuator: 3.6 to 30 mmAttachment according to IEC60534-6-1: 3.6 to 200mmAttachment to rotary actuators: 24 to 100 opening angleTravel range AdjustableAdjustable within the initialized travel/angle of rotation; travel can be restric
22、ted to 1/5 at the maximumReference variable wSignal range4 to 20 mA Two-wire device, reverse polarity protection Minimum span 4mAStatic destruction limit100 mAMinimum current3.6 mA for display 3.8 mA for operationLoad impedance8.2V (corresponding to 410 at 20 mA)Supply airSupply air1.4 to 7 bar (20
23、to 105 psi)Air quality acc. to ISO8573-1Max. particle size and density: Class 4 Oil content: Class 3 Pressure dew point: Class 3 or at least 10K beneath the lowest ambient temperature to be expectedSignal pressure (output)0 bar up to the capacity of the supply pressure Can be limited to 1.4 bar/2.4
24、bar/3.7 bar 0.2 bar by softwareCharacter-isticAdjustableLinear/equal percentage/reverse equal percentageUser-defined (over operating software and communication)Butterfly valve, rotary plug valve and segmented ball valve: Linear/equal percentageDeviation 1 %Hysteresis 0.3 %Sensitivity 0.1 %Transit ti
25、meUp to 240 s separately adjustable for exhaust and supply airDirection of actionReversibleAir consumption, steady stateIndependent of supply air approx. 110 ln/hAir output capacityActuator filled with airAt p = 6 bar: 8.5 mn/h At p = 1.4 bar: 3.0 mn/h KVmax (20 C) = 0.09Actuator ventedAt p = 6 bar:
26、 14.0 mn/h At p = 1.4 bar: 4.5 mn/h KVmax (20 C) = 0.15Permissible ambient temperature20 to +80 C (all versions) 45 to +80 C with metal cable gland25 to +80 C with inductive limit switch (SJ2-S1N) and metal cable glandThe limits in the test certificate additionally apply for explosion-protected vers
27、ionsInfluencesTemperature 0.15 %/10 KSupply airNoneInfluence of vibrations 0.25 % up to 2000 Hz and 4 g according to IEC 770Electromagnetic compatibilityComplying with EN 61000-6-2, EN 61000-6-3, EN 61326-1 and NAMUR Recommendation NE 21Electrical connectionsOne M20 x1.5 cable gland for 6 to 12 mm c
28、lamping rangeSecond M20 x1.5 threaded connection additionally availableScrew terminals for 0.2 to 2.5 mm wire cross-sectionDegree of protectionIP 66 /NEMA 4XUse in safety-instrumented systems (SIL)Observing the requirements of IEC 61508, the systematic capability of the control valve for emergency v
29、enting as a component in safety-instrumented systems is given.Use is possible on observing the requirements of IEC 61511 and the required hardware fault tolerance in safety-instrumented systems up to SIL 2 (single device/HFT = 0) and SIL 3 (redundant configuration/HFT = 1).Explosion protectionSee Ta
30、ble 2Communication (local)SAMSON SSP interface and serial interface adapterSoftware requirements (SSP)TROVIS-VIEW with database module 3730-3Communication (HART)HART field communication protocolImpedance in HART frequency range: Receiving 350 to 450 Sending approx. 115 Software re-quirements (HART)F
31、or handheld communicatorDevice description for Type 3730-3For PCDTM file acc. to Specification 1.2, suitable for integrating the positioner into frame applications that support the FDT/DTM concept (e.g. PACTware); other integration options (e.g. AMS, PDM) availableBinary contactsTwo software limit s
32、witches with reverse polarity protection, configurable switching behavior, default settings according to table belowSignal stateVersionNo explosion protectionExplosion-protected versionNo responseEffectively non-conducting 1.2 mAResponseConductive (R = 348 ) 2.1 mA1 fault alarm contactSignal stateVe
33、rsionNo explosion protectionExplosion-protected versionNo fault alarmConductive (R = 348 ) 2.1 mAFault alarmEffectively non-conducting 1.2 mA4 T 8384-3For connection toBinary input of a PLC acc. to IEC 61131-2Pmax = 400 mW or for connection to NAMUR switching amplifier acc. to EN60947-5-6NAMUR switc
34、hing amplifier acc. to EN60947-5-6MaterialsHousingDie-cast aluminum EN AC-AlSi12(Fe) (EN AC-44300) acc. to DIN EN 1706 Chromated and powder paint coated Special version in stainless steel 1.4581External partsStainless steel 1.4571 and 1.4301Cable glandM20 x1.5, black polyamideWeightApprox. 1.0 kgSol
35、enoid valve Approval acc. to IEC 61508/SILInput24 V DC Electrical isolation and reverse polarity protection Static destruction limit 40 VCurrent consumption I = U 5.7 V3840 (corresponding to 4.8 mA at 24 V/114 mW) Signal 0 (no response) 12 VSignal 1 (response) 19 VService life 5 x 106 switching cycl
36、esKV coefficient0.15Use in safety-instrumented systems (SIL)Same as positioner pneumaticsAnalog position transmitterTwo-wire transmitter Electrical isolationPower supply12 to 30 V DC Reverse polarity protection Static destruction limit 40 VOutput signal4 to 20 mAOperating directionReversibleOperatin
37、g range10 to +114 %CharacteristicLinearHysteresisSame as positionerHigh-frequency influenceSame as positionerOther influencesSame as positionerFault alarmIssued as status current 2.4 0.1 mA or 21.6 0.1 mAInductive limit switchFor connection to switching amplifier acc. to EN60947-5-6. Can be used in
38、combination with a software limit switch.SJ2-SN proximity switchNAMUR NC contactSJ2-S1N proximity switch NAMUR NO contactExternal position sensorTravelSame as positionerCable10 m Flexible and durable With M12x1 connector Flame-retardant acc. to VDE 0472Resistant to oils, lubricants and coolants as w
39、ell as other aggressive mediaPermissible ambient temperature60 to +105 C The limits in the test certificate additionally apply for explosion-protected versionsImmunity to vibrationUp to 10 g in the range of 10 to 2000 HzDegree of protectionIP 67Leakage sensor Suitable for operation in hazardous area
40、sTemperature range40 to +130 CTightening torque20 5 NmBinary input Electrical isolation Switching behavior configured over software (e.g. TROVIS-VIEW, DTM)Active switching behavior (default setting)ConnectionFor external switch (floating contact) or relay contactElectric dataOpen-circuit voltage whe
41、n contact is open: max. 10 VPulsed DC current reaching peak value of 100 mA and RMS value of 0.01mA when contact is closedContactClosed, R 400 OFF switching state (default setting)Passive switching behaviorConnectionFor externally applied DC voltage, reverse polarity protectionElectric data0 to 30 V
42、 Static destruction limit: 40 V Current consumption at 24 V: 3.7 mAVoltage 6 VON switching state (default setting) 1 VOFF switching state (default setting)Analog input x Electrical isolation Input for externally measured valve positionInput signal4 to 20 mA Reverse polarity protection Minimum span 6
43、.4 mAElectric dataLoad impedance at 20 mA: 6.0 V Impedance at 20 mA: 300 Overload capacity: 24 V AC/DCT 8384-3 5Table 2: Summary of explosion protection approvalsType of approvalCertificate numberDateType of protection/comments Type 3730EC Type Examination CertificatePTB 02 ATEX 21742002-11-15II 2G
44、Ex ia IIC T6, II 2D Ex tb IIIC T80C IP66-31First Addendum2003-06-18Revision: Modem PCB Addition: Forced fail-safe functionSecond Addendum2004-02-16Additions: II 2D IP65 T80C, optional position transmitter Revisions: Multi-function PCBThird Addendum2007-09-10Revision: Electrical data for forced venti
45、ng, binary sensor, binary input, structure-borne sound sensorFourth Addendum2008-12-10Revision: Extension of permissible ambient temperature rangeFifth Addendum2013-07-30Adaption: Latest edition of standardStatement of ConformityPTB 03 ATEX 2180 X2003-09-30II 3G Ex nA II T6, II 3G Ex ic IIC T6, II 3
46、D Ex tc IIIC T80C IP66-38First Addendum2005-04-26Addition: II 3G EEx nA II T6Second Addendum2007-09-10Revision: Electrical data for binary sensor, binary input, structure-borne sound sensor, sensor connectionThird Addendum2008-12-10Revision: Extension of permissible ambient temperature range Adaptio
47、n: Latest edition of standardFourth Addendum2013-07-30Adaption: Latest edition of standardCSA13301292009-02-19Ex ia IIC T6; Class I, Zone 0; Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class I, Zone 2; Class I, Div.2, Groups A, B, C, D; Class II, Div.2, Groups E, F, G-33FM30123942008-11-30
48、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-33GOST (valid until 2018-11-14) RU C-DE08.B.001132013-11-151Ex ia IIC T6 Gb; 1Ex tb IIIC T80C Db IP66-312Ex nA IIC T6 Gc; 2Ex ic IIC T6 Gc; 2Ex tc IIIC T80C
49、 Dc IP66-38IECExIECEx PTB 05.00082005-02-21Ex ia IIC T6/T5/T4-31CCoE (valid until 2016-01-26)A/P/HQ/MH/104/11052011-01-27Ex ia IIC T6-31INMETRO (valid until 2016-08-27)IEx 13.01612013-08-28Ex ia IIC T Gb-3KCS (valid until 2014-11-11)11-KB4BO-02242011-11-10Ex ia IIC T6/T5/T4-31NEPSI (valid until 2017
50、-10-07)GYJ012.1486X2012-10-08Ex ia IIC T4T6 Ga-31GYJ12.1487XEx nL IIC T4T6 Gc; Ex nA IIC T4T6 Gc-38The test certificates are included in the mounting and operating instructions or are available on request.Refer to Data Sheet T 8379 EN for Ex d approvals of Type 3770 Field Barrier.Mounting the positi
