{"product_id":"yokogawa-f3ad08-4w-fa-m3-analog-input-modules","title":"Yokogawa F3AD08-4W FA-M3 Analog Input Modules","description":"\u003ch2\u003eYokogawa F3AD08-4W FA-M3 Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-speed current signal acquisition in FA-M3 PLC platforms, the \u003cstrong\u003eYokogawa F3AD08-4W\u003c\/strong\u003e (\u003cstrong\u003eF3AD08-4W\u003c\/strong\u003e Analog Input Module) provides direct physical\/electrical execution. The module accepts 8 differential analog current loops (0–20 mA DC or 4–20 mA DC) across an 18-point terminal block, whereupon internal A\/D converters execute 12-bit digitization at selectable speed rates. Integrated photocoupler isolation barriers block field-induced common-mode noise, while internal bus interfaces route digital process values across the central controller backplane without transmission delay.\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\u003eF3AD08-4W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eFA-M3 \/ FA-M3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e8 differential inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Range\u003c\/td\u003e\n\u003ctd\u003e0–20 mA DC, 4–20 mA DC (-1.0 to 21.0 mA DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsolute Maximum Input\u003c\/td\u003e\n\u003ctd\u003e±25 mA DC or ±18 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003e250 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA\/D Conversion Resolution\u003c\/td\u003e\n\u003ctd\u003e12-bit (up to 1.6 µA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Speed\u003c\/td\u003e\n\u003ctd\u003eSelectable: 50 µs to 100 ms per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1% FS at 23 deg C, ±0.2% FS at 0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n\u003ctd\u003ePhotocoupler isolation (input terminals to internal circuits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWithstanding Voltage\u003c\/td\u003e\n\u003ctd\u003e500 V DC for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon-mode Voltage\u003c\/td\u003e\n\u003ctd\u003e±6 V DC max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e210 mA at 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Dimensions\u003c\/td\u003e\n\u003ctd\u003e28.9 x 100 x 106.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit Weight\u003c\/td\u003e\n\u003ctd\u003e0.20 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Terminal\u003c\/td\u003e\n\u003ctd\u003e18-point detachable terminal block (M3.5 screws)\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 \u0026amp; Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe module processes standard 4-20 mA DC analog transmitter loops while internal photocoupler barriers provide robust isolation between field terminals and internal CPU logic. Onboard hardware execution units manage per-channel digital filtering (first-order lag or moving average) and zero\/span offsets, whereupon scaled digital values pass to the system backplane without CPU overhead. Galvanic separation suppresses ground loop currents across field loops, while internal self-diagnostic routines actively audit over-range current levels and hardware circuit health during operational execution.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the F3AD08-4W module process 0-10 V voltage input signals directly on its channels?\u003c\/p\u003e\n\u003cp\u003eA: No. The internal circuitry utilizes an integrated 250 Ω shunt resistor scaled specifically for current loops (0–20 mA and 4–20 mA). Connecting raw voltage sources directly can exceed maximum current ratings and damage internal shunt components.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module support live removal or terminal block replacement while the FA-M3 rack remains powered?\u003c\/p\u003e\n\u003cp\u003eA: Technicians can safely disconnect the 18-point external terminal block for loop maintenance, but extracting the module itself from the base rack requires de-energizing the main 5 V DC backplane supply to prevent system bus lockup.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module handle signal values outside the normal 4-20 mA range?\u003c\/p\u003e\n\u003cp\u003eA: The onboard converter measures Extended ranges (-1.0 to 21.0 mA DC), whereupon internal firmware triggers an over-range flag and holds process registers according to pre-configured fail-safe parameters.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Mitigation \u0026amp; Handling\u003c\/strong\u003e: Technicians must attach a grounded anti-static wrist strap to the enclosure rack before removing the card from its protective bag. Handle the module strictly by its outer plastic shell to protect edge connector contacts against ESD damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Mounting\u003c\/strong\u003e: Insert the module upper and lower alignment tabs into the designated FA-M3 base slot. Push the unit firmly inward until the lock lever engages with an audible click to confirm mechanical seat alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Wiring \u0026amp; Shield Grounding\u003c\/strong\u003e: Connect 4-20 mA current loops using twisted-pair shielded cable to the M3.5 terminal screws. Torque terminal screws evenly to 0.8 Nm, and terminate wire shields to a single cabinet ground bar to prevent noise pickup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Clearance \u0026amp; Orientation\u003c\/strong\u003e: Mount the base rack vertically to facilitate natural heat dissipation across the ventilation slots. Maintain at least 50 mm of unobstructed space above and below the rack chassis to keep operating temperatures strictly within the 0 to 55 deg C window.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43824044572762,"sku":"F3AD08-4W","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/795.jpg?v=1786420320","url":"https:\/\/www.spareoil.com\/products\/yokogawa-f3ad08-4w-fa-m3-analog-input-modules","provider":"SpareOil Automation","version":"1.0","type":"link"}