{"product_id":"foxboro-fbmsvl-control-cards","title":"Foxboro FBMSVL Control Cards","description":"\u003cp\u003eThe \u003cstrong\u003eFoxboro FBMSVL\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eFBMSVL\u003c\/strong\u003e Control Cards, operates as a dedicated hardware component for converting electrical loop demand into physical pneumatic actuation within DCS control loops. The unit converts a standard analog current input into proportional pneumatic output pressure to manage physical valve stem displacement.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFBMSVL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFoxboro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApproximately 2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard enclosure profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePowered via 24 VDC external supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003ePneumatic (3-15 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eAdjustable range for compatibility with various valve types and sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eControl Cards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe electrical interface of the FBMSVL module relies on channel-to-channel isolation architecture to isolate internal signal processing circuits from field loop ground potentials. When connected within plant networks utilizing the 4-20 mA HART loop protocol or downstream FOUNDATION Fieldbus signal converters, the card preserves current loop integrity across the full command range. Integrated temperature tracking stabilizes internal reference nodes, providing cold junction compensation stability and drift resistance during ambient temperature shifts within the -20 to 60 deg C operating window.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is field calibration adjusted for different pneumatic valve stroke limits?\u003c\/p\u003e\n\u003cp\u003eA: Range adjustment controls integrated into the hardware allow span and zero alignment to configure the 4-20 mA input span against the 3-15 psi pneumatic output range.\u003c\/p\u003e\n\u003cp\u003eQ: What power supply parameters are required to run the internal control loop electronics?\u003c\/p\u003e\n\u003cp\u003eA: The module requires an external nominal 24 VDC power supply to energize internal processing and signal conversion electronics.\u003c\/p\u003e\n\u003cp\u003eQ: What structural protection is provided for operation in corrosive field environments?\u003c\/p\u003e\n\u003cp\u003eA: The module is constructed with a stainless steel housing rated for ambient operating temperatures between -20 and 60 deg C.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the FBMSVL control card assembly securely to the valve actuator mounting bracket using standard hardware.\u003c\/li\u003e\n\u003cli\u003eConnect clean, dry instrument air supply piping to the pneumatic supply inlet port according to plant pressure standards.\u003c\/li\u003e\n\u003cli\u003eConnect the pneumatic output port to the valve actuator diaphragm or piston chamber using rigid tubing.\u003c\/li\u003e\n\u003cli\u003eWire the 4-20 mA command signal loop to the designated input terminals, observing correct polarity.\u003c\/li\u003e\n\u003cli\u003eConnect the 24 VDC auxiliary power supply lines to the supply terminals.\u003c\/li\u003e\n\u003cli\u003eTerminate the overall cable shield at the cabinet single-point instrument ground bus to minimize signal interference.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":53446440943925,"sku":"FBMSVL","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/FBMSVL_Cocoai.png?v=1788344668","url":"https:\/\/www.5gplc.com\/products\/foxboro-fbmsvl-control-cards","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}