{"product_id":"siemens-771-3stf2-moore-industries-i-p-transducer","title":"Siemens 771-3STF2 Moore Industries I\/P Transducer","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Siemens 771-3STF2 is a high-precision Current-to-Pressure (I\/P) transducer engineered to translate electronic control signals into pneumatic actuation. This device acts as an essential interface between modern or legacy electronic control systems and pneumatic final control elements, such as valves and dampers. By converting a 1-5 mA DC input into a precise 3-15 PSIG pneumatic output, the unit enables accurate process modulation in demanding industrial environments including power generation, chemical processing, and oil and gas facilities.\u003c\/p\u003e\u003ch3\u003eFunctional Characteristics\u003c\/h3\u003e\u003cp\u003eUtilizing a robust force-balance mechanism, the 771-3STF2 ensures reliable signal conversion with minimal hysteresis. The internal coil assembly generates a magnetic field that interacts with a flapper-nozzle arrangement to modulate pilot pressure, which is subsequently amplified to the required 3-15 PSIG output. Housed in a ruggedized industrial enclosure, this transducer is built to withstand atmospheric contaminants and mechanical vibration, maintaining output linearity and process stability over extended operational lifecycles.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e771-3STF2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlternative ID\u003c\/td\u003e\n\u003ctd\u003eK60000-001\/SC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e1-5 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Range\u003c\/td\u003e\n\u003ctd\u003e3-15 PSIG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Pressure\u003c\/td\u003e\n\u003ctd\u003e20 PSIG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePneumatic Connection\u003c\/td\u003e\n\u003ctd\u003e1\/4 inch NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the supply air is clean, dry, and regulated to the required 20 PSIG to prevent internal clogging or erratic output.\u003c\/li\u003e\n\u003cli\u003eMount the unit in a stable location, preferably away from excessive vibration sources, to maintain the accuracy of the force-balance mechanism.\u003c\/li\u003e\n\u003cli\u003eVerify correct polarity of the 1-5 mA DC input signal during wiring to ensure proper transducer response.\u003c\/li\u003e\n\u003cli\u003eUse appropriate thread sealant on 1\/4 inch NPT pneumatic connections to prevent air leaks, which can degrade output pressure stability.\u003c\/li\u003e\n\u003cli\u003eBefore installation or removal, isolate the pneumatic supply pressure to prevent accidental actuation of downstream field equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 771-3STF2?\u003c\/h3\u003e\u003cp\u003eThe 771-3STF2 is designed to convert an electrical current signal (1-5 mA) into a proportional pneumatic pressure (3-15 PSIG) to drive pneumatic actuators.\u003c\/p\u003e\u003ch3\u003eIs this unit compatible with Moore Industries systems?\u003c\/h3\u003e\u003cp\u003eYes, the 771-3STF2 is widely used in systems originally designed by Moore Industries and serves as a direct replacement or equivalent component for legacy Siemens\/Moore instrumentation.\u003c\/p\u003e\u003ch3\u003eWhat supply pressure is required for operation?\u003c\/h3\u003e\u003cp\u003eThis transducer requires a standard supply pressure of 20 PSIG to achieve its full 3-15 PSIG output range.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44701453484120,"sku":"771-3STF2","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/wm_1_31228089-c4d6-414c-9be2-7dd43763ec21.jpg?v=1788376790","url":"https:\/\/www.industriaxplc.com\/ar\/products\/siemens-771-3stf2-moore-industries-i-p-transducer","provider":"IndustriaX Limited","version":"1.0","type":"link"}