{"product_id":"yokogawa-nfar181-s00-centum-vp-16-channel-rtd-input-module","title":"YOKOGAWA NFAR181-S00 CENTUM VP 16-Channel RTD Input Module","description":"\u003ch2\u003eYOKOGAWA NFAR181-S00 CENTUM VP RTD Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for resistance temperature sensor data acquisition in CENTUM VP systems, the \u003cstrong\u003eYOKOGAWA NFAR181-S00\u003c\/strong\u003e (\u003cstrong\u003eNFAR181\u003c\/strong\u003e RTD Input Module) provides direct physical\/electrical execution. This 16-channel unit converts resistance inputs from 3-wire and 4-wire RTD field assemblies across an input resistance range of 0 to 400 ohm directly into digital process variables.\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-S00\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\u003e0.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e150 mm x 100 mm x 150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channel Count\u003c\/td\u003e\n\u003ctd\u003e16 isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Wiring Support\u003c\/td\u003e\n\u003ctd\u003e3-wire and 4-wire RTDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance Range\u003c\/td\u003e\n\u003ctd\u003e0 to 400 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Platform\u003c\/td\u003e\n\u003ctd\u003eVnet\/IP \/ CENTUM VP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; Channel Isolation Architecture\u003c\/h3\u003e\n\u003cp\u003eThe module incorporates channel-to-channel isolation circuits to prevent common-mode voltage interference from corrupting temperature measurements across the 16 signal inputs. Cold junction compensation (CJC) algorithms run parallel to internal analog-to-digital conversion stages, delivering high-accuracy data conditioning. Designed for continuous field control station operation, the module interfaces with 4-20 mA HART loop protocol diagnostic layers and FOUNDATION Fieldbus network segments to maintain signal integrity across critical loops.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the NFAR181-S00 module support online replacement during system operation?\u003c\/p\u003e\n\u003cp\u003eA: Yes. Technicians can replace the module under power when mounted in a compatible Yokogawa node unit without interrupting Vnet\/IP system bus communications or surrounding I\/O module signals.\u003c\/p\u003e\n\u003cp\u003eQ: Can 3-wire and 4-wire RTD sensors be wired concurrently on different channels of the same NFAR181-S00 module?\u003c\/p\u003e\n\u003cp\u003eA: Yes. Each of the 16 isolated channels accepts independent software configuration for either 3-wire or 4-wire RTD wiring setups.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module handle a broken sensor wire or open-circuit condition?\u003c\/p\u003e\n\u003cp\u003eA: The internal diagnostic circuit detects resistance values exceeding the 0 to 400 ohm threshold and sends immediate open-circuit failure flags directly to the DCS controller.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the module securely into its designated slot on the Yokogawa node unit interface backplane, ensuring the locking latches snap into position. Connect field sensor conductors using shielded twisted-pair cables designed for low-resistance RTD loops. Route all signal wiring through dedicated low-voltage wire trays, maintaining physical separation from high-voltage AC lines and variable frequency drive cables. Ground all cable drain wires at a single protective earth point on the cabinet grounding rail to eliminate potential ground loop interference.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51178746052920,"sku":"NFAR181-S00","price":265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/NFAR181-S002.jpg?v=1759110117","url":"https:\/\/www.automodulexpert.com\/products\/yokogawa-nfar181-s00-centum-vp-16-channel-rtd-input-module","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}