{"product_id":"43ap-fa42c-pc-foxboro-pneumatic-indicating-controller","title":"43AP-FA42C-PC Foxboro Pneumatic Indicating Controller","description":"\u003ch2\u003eTechnical Description\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e43AP-FA42C-PC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a versatile\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epneumatic PI (Proportional + Integral) controller\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesigned for accurate process monitoring and regulation in demanding industrial environments. This unit provides precise\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ereset (integral) action\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto eliminate steady-state offset, ensuring long-term alignment between the process variable and setpoint.\u003c\/p\u003e\n\u003cp\u003eEngineered for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efield-mounted operation\u003c\/strong\u003e, the controller integrates a high-visibility mechanical pointer for real-time indication along with a robust pneumatic control mechanism. Its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emechanical simplicity, spark-free operation, and intrinsic reliability\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emake it well suited for hazardous and electrically sensitive areas.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eDetailed Specifications\u003c\/h2\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e43AP-FA42C-PC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Function\u003c\/td\u003e\n\u003ctd\u003eProportional + Integral (PI \/ Reset)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegral Action Time\u003c\/td\u003e\n\u003ctd\u003e0.01 to 50 min per repeat (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Element\u003c\/td\u003e\n\u003ctd\u003ePC — Pressure receiver (bellows type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Range\u003c\/td\u003e\n\u003ctd\u003e3 to 15 psi (pneumatic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Pressure Gauge\u003c\/td\u003e\n\u003ctd\u003eUp to 30 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Mechanism\u003c\/td\u003e\n\u003ctd\u003eType C — Bumpless transfer, 2-position switch with balance gauge and regulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Configuration\u003c\/td\u003e\n\u003ctd\u003eF — Field mounting (pipe or yoke)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Weight\u003c\/td\u003e\n\u003ctd\u003e4.8 kg \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eWeatherproof glass-fiber reinforced polyester or die-cast aluminum (43AP series standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eFunctional Comparison: P vs. PI Control\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProportional (P) Control\u003c\/strong\u003e\u003cbr\u003eResponds proportionally to process error but typically results in a permanent\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eoffset\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efrom the setpoint.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProportional + Integral (PI) Control\u003c\/strong\u003e\u003cbr\u003eImplemented in the 43AP-FA42C-PC, integral action continuously adjusts output over time,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eeliminating steady-state error\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand driving the process precisely to the setpoint.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eCommonly Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the advantage of the bumpless transfer feature?\u003c\/strong\u003e\u003cbr\u003eA: The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eType C switching mechanism\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eenables seamless transfer between manual and automatic modes without sudden output disturbances, protecting valves and other final control elements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the controller be mounted directly on a control valve?\u003c\/strong\u003e\u003cbr\u003eA: While designated for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efield (F) mounting\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon a pipe or yoke, it is commonly installed near pneumatic actuators to efficiently regulate pressure-based control loops.\u003c\/p\u003e","brand":"FOXBORO","offers":[{"title":"Default Title","offer_id":51630897398072,"sku":"43AP-FA42CPC","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/43AP-FA42CPC.jpg?v=1768786448","url":"https:\/\/www.automodulexpert.com\/tr\/products\/43ap-fa42c-pc-foxboro-pneumatic-indicating-controller","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}