{"product_id":"yokogawa-nfar181-s50-r8s10-rtd-input-module-fio-subsystem-analog-card","title":"Yokogawa NFAR181-S50\/R8S10 RTD Input Module FIO Subsystem Analog Card","description":"\u003ch2\u003eYokogawa NFAR181-S50 RTD Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-accuracy temperature acquisition in FIO subsystems, the \u003cstrong\u003eYokogawa NFAR181-S50\u003c\/strong\u003e (\u003cstrong\u003eNFAR181-S50\/R8S10\u003c\/strong\u003e RTD Input Module) provides direct physical electrical execution for Pt100 sensor integration.\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\u003eNFAR181-S50\/R8S10\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard FIO rack-mount form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e450 mA at 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Capacity\u003c\/td\u003e\n\u003ctd\u003e12 Isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Compatibility\u003c\/td\u003e\n\u003ctd\u003ePt100 (3-wire configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and RTD Signal Processing\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eNFAR181-S50\u003c\/strong\u003e module serves as a specialized input interface for 12-channel Pt100 RTD sensing. It delivers a measurement range of -200 deg C to 800 deg C with a resolution of 1 second per update cycle. Each channel is galvanically isolated to 1500 V AC to prevent ground loop noise and transient voltage propagation into the system backplane. The module employs a 1 mA measurement current to excite the RTD elements, ensuring minimal self-heating errors while maintaining a temperature drift specification of 30 ppm\/deg C. Additionally, the unit features configurable burn-out detection, which triggers a status alert within 60 seconds if a sensor open-circuit condition is identified.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can this module accommodate 2-wire RTD configurations?\u003c\/p\u003e\n\u003cp\u003eA: The module is designed specifically for 3-wire Pt100 RTD configurations. Using 2-wire sensors will result in significant measurement inaccuracies due to lead-wire resistance, which cannot be compensated for by the hardware.\u003c\/p\u003e\n\u003cp\u003eQ: Is the update rate of 1 second fixed or adjustable?\u003c\/p\u003e\n\u003cp\u003eA: The data refresh cycle is fixed at 1 second per channel. This timing is optimized for stability in process-level temperature monitoring and cannot be reduced for high-speed dynamic applications.\u003c\/p\u003e\n\u003cp\u003eQ: What is the procedure for clearing a burn-out detection status?\u003c\/p\u003e\n\u003cp\u003eA: Once a sensor fault is detected, the status remains latched in the controller registers. Repair the physical sensor connection, and then perform a reset via the engineering station to clear the diagnostic fault flag.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead-Wire Resistance\u003c\/strong\u003e: When installing Pt100 sensors, ensure all three lead wires have identical length and gauge. This maintains the bridge balance required for the module to effectively cancel out lead-wire resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTermination and Shielding\u003c\/strong\u003e: Use shielded multi-core cables to connect the RTDs. Terminate the cable shields at a dedicated ground terminal on the cabinet chassis to reduce electromagnetic interference. Avoid routing signal cables in the same conduit as high-voltage AC power or variable frequency drive outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding\u003c\/strong\u003e: The module's isolated architecture relies on a solid cabinet ground connection. Verify that the chassis ground stud is tightly connected to the main earthing bus to ensure that the 1500 V AC isolation rating remains effective.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Handling\u003c\/strong\u003e: Protect the module from moisture and corrosive gases during installation. Given the -10 deg C to 55 deg C rating, ensure the field enclosure is appropriately ventilated to prevent internal temperatures from exceeding the maximum limit during peak ambient conditions.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43585424556122,"sku":"NFAR181-S50","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/438._642fb184-5605-4b86-9377-f780c964ac7a.jpg?v=1783048927","url":"https:\/\/www.spareoil.com\/es\/products\/yokogawa-nfar181-s50-r8s10-rtd-input-module-fio-subsystem-analog-card","provider":"SpareOil Automation","version":"1.0","type":"link"}