{"product_id":"yokogawa-nfar181-s00-r8s0-rtd-input-module","title":"Yokogawa NFAR181-S00\/R8S0 RTD Input Module","description":"\u003cp\u003eThe Yokogawa NFAR181-S00\/R8S0 is a 12-channel isolated RTD input module designed to acquire resistance temperature signals for industrial process monitoring. It belongs to the FCN\/FCJ I\/O module range. The NFAR181 series provides isolated temperature measurement inputs, while the \/R8S00 option identifies a pressure-clamp terminal block configuration for RTD field wiring.\u003c\/p\u003e\n\u003ch3\u003eRTD Input Configuration\u003c\/h3\u003e\n\u003cp\u003eThe module accepts resistance signals from the following three-wire temperature sensors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePt100: JIS C 1604:1997 and IEC 60751:1995.\u003c\/li\u003e\n\u003cli\u003ePt100: JIS C 1604:1989 and IEC 60751:1986.\u003c\/li\u003e\n\u003cli\u003eJPt100: JIS C 1604:1989.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe RTD measurement circuit uses a 1 mA measurement current. This allows the controller to acquire sensor resistance and convert it into temperature data for process monitoring. The supported sensor type and wiring arrangement must match the field instrument configuration.\u003c\/p\u003e\n\u003ch3\u003eElectrical Characteristics and Signal Accuracy\u003c\/h3\u003e\n\u003cp\u003eThe NFAR181 provides an accuracy of ±0.03% of full scale over the 0 to 400 ohm measurement range. The allowable total resistance of the signal source and wiring is 40 ohm or less, with equal wiring resistance required for individual leads.\u003c\/p\u003e\n\u003cp\u003eThe input-to-system withstand voltage is 1500 V AC for one minute. This isolation specification defines the electrical withstand capability between the input circuit and the system; it should not be interpreted as a channel-to-channel isolation rating.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\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\u003c\/td\u003e\n\u003ctd\u003eNFAR181-S00\/R8S0\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eRTD Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSTARDOM FCN\/FCJ I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Input Channels\u003c\/td\u003e\n\u003ctd\u003e12, Isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003eRTD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Sensors\u003c\/td\u003e\n\u003ctd\u003ePt100, JPt100, Three-wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e0 to 400 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Current\u003c\/td\u003e\n\u003ctd\u003e1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.03% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllowable Input Voltage\u003c\/td\u003e\n\u003ctd\u003e±5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance (Power ON)\u003c\/td\u003e\n\u003ctd\u003e2 MΩ or more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance (Power OFF)\u003c\/td\u003e\n\u003ctd\u003e2 MΩ or more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllowable Total Resistance\u003c\/td\u003e\n\u003ctd\u003e40 ohm or less, per-wire wiring resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWithstanding Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 V AC, 1 minute, input to system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Drift\u003c\/td\u003e\n\u003ctd\u003eMax. ±30 ppm\/deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Refresh Cycle\u003c\/td\u003e\n\u003ctd\u003e1 second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current Consumption\u003c\/td\u003e\n\u003ctd\u003e450 mA at 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Connection\u003c\/td\u003e\n\u003ctd\u003ePressure Clamp Terminal\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eTechnical specifications: Yokogawa GS 34P02Q31-01E, Analog I\/O Modules General Specifications.\u003c\/p\u003e\n\u003ch3\u003eTerminal Block and Ordering Configuration\u003c\/h3\u003e\n\u003cp\u003eThe \/R8S00 option is identified in Yokogawa's FCN\/FCJ ordering information as a pressure-clamp terminal block for RTD connections, model NFTR8S-00. It provides the field wiring interface for connecting RTD sensor circuits to the input module.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many RTD sensors can the NFAR181 support?\u003c\/p\u003e\n\u003cp\u003eA: The module supports 12 isolated RTD input channels. Each channel is intended for the specified three-wire Pt100 or JPt100 sensor configuration.\u003c\/p\u003e\n\u003cp\u003eQ: Can the NFAR181 accept both Pt100 and JPt100 sensors?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The published specifications identify both Pt100 and JPt100 three-wire inputs. The selected sensor standard must correspond to the actual field sensor.\u003c\/p\u003e\n\u003cp\u003eQ: What is the function of the R8S00 terminal option?\u003c\/p\u003e\n\u003cp\u003eA: It specifies the pressure-clamp terminal block for RTD field connections, identified as Yokogawa NFTR8S-00. This is a terminal configuration option rather than an additional measurement channel or signal type.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":68899630088434,"sku":"NFAR181-S00","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/NFAR181-S00R8S0.jpg?v=1793954846","url":"https:\/\/www.petrospare.com\/products\/yokogawa-nfar181-s00-r8s0-rtd-input-module","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}