smar t pos i t ionerHIGH FLOW CAPACITY

Total capability in valve actuation

Key features

1 HIGH FLOW PRECISION CONTROL

The unique design allows to keep the high

speed performance in large volume actua-

tors without additional amplification.

2 CONTROL ALGORITHMS & HARDWARE

Self calibration on double acting piston,

diaphragm, rotary actuator with or without

spring; patented adjustable control parame-

ter independently to open and close stroke.

3 STRONG SHAFT DESIGN

Not sensitive to radial and axial external load

caused by mounting and linkages.

4 ENVIRONMENTAL PROTECTION

Thanks to IP66 protection and unique

exhaust protection system it is suitable to

be installed in harsh environment with pres-

ence of tropical rain, dust, sand, salt…

60

50

40

30

20

10

00 10 20 30 40 50 60

STROKING TIME

Positioner CV 0.5

FT CV 2

TIME (s)

AC

TU

ATO

R V

OLU

ME

(l)

FT in stainless steel 316 version. Strong shaft design. Environmental protection.

SERIES

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1 Remote feedback sensor

2 Universal linkage for:

� linear long stroke actuator (70÷1500 mm)

� VDI/VDE 3845 for rotary applications

� lever for side yoke or top mounting application

� customized application

3 Directly mounted pneumatic accessories:

� gauges and lock up valve

4 Collected or high silenced exhaust

5 High speed communication kit

6 High corrosion resistance version

stainless steel 316 case

7 High corrosion resistance version

stainless steel 316 cabinet

8 Fail in place version

9 Advanced diagnostic with option pack

10 Suitable for using with natural gas

(ATEX-IECEX Certified)

11 Display and push button

CONNECTIONPower 2 wire from signal

(min 3,5 mA, 12÷30 Vdc)Electrical connections Signal 1/2” NPT (or metric

M20x1,5 on request) Auxiliary input / output 1/2” NPT(or metric M20x1,5 on request)

Pneumatic connections 1/2” NPT femaleCommunication protocol HART

TTL RS232INPUTSignal 4-20 mA with HART TM protocol

Configurable split range On off Nr 2 configurable digital

(optocoupler 24Vdc)OUTPUTPosition 4-20 mA passive loopOn off Nr 2 configurable digital

(optocoupler 24Vdc)STROKE MOVEMENTFeedback angle of rotation 30°÷120°

(<30° with lower resolution)Adjustable speed Range 0÷300 seconds,

individually configurable for each direction

Characteristic curve LinearEqual percentageConfigurable

Control parameter Individually configurable for each direction

Travel control Min. and Max. settable stroke limitsAdjustable thrust on seat

AIR SUPPLYInstrument air Free of oil, water and dust to

ISO 8573-1 - Class 3Supply pressure 2,5÷10 barAir consumption 1,5 Nm3/h at 6 barPERFORMANCE DATA (for angle > 90°) According to IEC 61514-2Hysteresis + deadband ±0,15%Repeatibility ±0,15%Sensitivity ±0,1%Linearity ±0,3%Influence of ambienttemperature 0,3% for every 10°CAir capacity 180 Nm3/h at 6 bar (CV 2,3)Action Configurable single or double ENVIROMENMENTAL CAPABILITIESAmbient Protection IP66 NEMA 4X

Operation temperature-40° to +80°C-50° to +80°C for GOST

Humidity Up to 100% Vibrations Up to 2g (ISA S75.13)CE mark CE conformity and EMCMATERIALS

AluminiumStainless steel feedback shaftFully stainless steel 316

WEIGHTAluminium (Ex ia) 3,25 kgAluminium (Ex d) 4,11 kgStainless steel 316 (Ex ia) 8,82 kgStainless steel 316 (Ex d) 10,78 kg

Techn ica l spec i f ica t ions

Opt ions & accessor ies

Detailed model selection available on our websitewww.stiactuation.com

FT display version.

Remote cont ro l so f tware in te r face

1 User friendly interface with all key parameters shown in one screen

2 Tool for easy mechanical feedback alignment

3 Self calibration wizard

4 All parameters full control in a fine tuning expert page

5 Graph tool for performance monitoring with configurable parameters

6 Events and errors report

7 Certified HART TM protocol communication 375/475 handheld compliant

8 Option Pack 1 - Advanced diagnostic: Valve signature - Step response

9 Option Pack 2 - Advanced sw feature: Stability control - Soft approach to seatFrequency response analysis

HART HART HART

4-20 mA

MUXHART modem

Remote Control interface.

Valve signature.

Step response.

5 EMBEDDED FEATURES

� 4-20 mA position feedback.

� Digital inputs for configurable trips.

� Digital outputs configurable for limitswitches and/or alarm.

6 COMMUNICATIONS

� 4-20 mA control and power with HART TM

communication protocol.

� High speed serial connection.

7 SOFWARE INTERFACE

Dedicated software (RCFT) to set, cus-

tomize, control, monitor high dynamic per-

formances.

8 CERTIFICATIONS & APPROVALS

� EUROPEAN DIRECTIVE

� Intrinsically safe (Ex ia) / Explosion proof (Ex d [ia]) according to:

ATEX (94/9/EC)

IECEX

CSA/cUS

CUTR

GOST

INMETRO

Featu res� No need of amplification device (booster, quick exhaust, ...)in most application

� Superior control capacity of amplification device when installed

� High flow with quick, precise complete control capability

� Powerful self calibration software with totally personalization control parameter capability

� Wide set of configurable embedded features

� Strong design with full metal housing

Top mounting application.

Application on quarter turn actuator.

Application on linear actuator.

Application on diaphragm actuator.

gfs

tudi

o.co

m

Brescia

Bergamo

VeronaMilano/

Orio al SerioAirport

MilanMalpensaAirport

LinateAirport

Piacenza

STI S.r.l. (Headquarter)Via Dei Caravaggi 1524040 Levate (BG) ItalyTel. +39 035 2928.2Fax +39 035 2928.247

STI S.r.l. (Quarter Turn Division)Via San Francesco 1829017 Fiorenzuola d’Arda (PC) ItalyTel. +39 035 2928.2Fax +39 0523 1715.295

www.stiactuation.com

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