{"product_id":"siemens-6es7331-7sf00-0ab0-sm331-8ai-tc-4ai-rtd-ex","title":"Siemens 6ES7331-7SF00-0AB0 SIMATIC S7-300 SM 331 8xAI TC\/4xAI RTD Ex Hazardous Area PLC I\/O Module","description":"\u003cp\u003eThe Siemens 6ES7331-7SF00-0AB0 is a SIMATIC S7-300 SM 331 analog input module with 8 isolated inputs for thermocouples or 4 for Pt100\/Ni100 resistance thermometers, built to bring temperature signals from a hazardous area into the control system. It resolves up to 16 bit including sign, is PTB tested under number Ex-96.D.2108X, and carries an ATEX II 3 G (2) GD marking.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalog No \/ SKU\u003c\/td\u003e\n\u003ctd\u003e6ES7331-7SF00-0AB0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eSM 331 analog input module, isolated, for hazardous-area signals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad voltage L+\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent consumption from backplane bus (5 V DC), max.\u003c\/td\u003e\n\u003ctd\u003e120 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower loss, typ.\u003c\/td\u003e\n\u003ctd\u003e0.6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog inputs\u003c\/td\u003e\n\u003ctd\u003e8 thermocouple channels or 4 Pt100\/Ni100 resistance-thermometer channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage input ranges\u003c\/td\u003e\n\u003ctd\u003e+\/-25, +\/-50, +\/-80, +\/-250, +\/-500 mV; +\/-1 V, input resistance 10 megOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermocouple types supported\u003c\/td\u003e\n\u003ctd\u003eB, E, J, K, L, N, R, S, T, U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance thermometer types supported\u003c\/td\u003e\n\u003ctd\u003eNi 100, Pt 100, Pt 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution, max.\u003c\/td\u003e\n\u003ctd\u003e16 bit including sign (10-15 bit + sign per range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegration time, parameterizable\u003c\/td\u003e\n\u003ctd\u003e2.5 to 100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterference frequency suppression range\u003c\/td\u003e\n\u003ctd\u003e10 to 400 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003e2-wire or 4-wire transducer for current measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBasic error limit at 25 degC (resistance thermometer)\u003c\/td\u003e\n\u003ctd\u003e+\/-0.008% of input range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperational error limit, full temp. range (resistance thermometer)\u003c\/td\u003e\n\u003ctd\u003e+\/-0.04% of input range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable length, shielded, max.\u003c\/td\u003e\n\u003ctd\u003e200 m (50 m for thermocouples)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx(i) gas group IIC limits\u003c\/td\u003e\n\u003ctd\u003eUo 5.9 V, Io 28.8 mA, Po 41.4 mW, Co 43 microF, Lo 40 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eATEX marking\u003c\/td\u003e\n\u003ctd\u003eII 3 G (2) GD Ex nA [ib Gb] [ib IIIC Db] IIC T4 Gc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFM marking\u003c\/td\u003e\n\u003ctd\u003eClass I, Division 2, Group A, B, C, D T4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePTB test number\u003c\/td\u003e\n\u003ctd\u003eEx-96.D.2108X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient temperature, operation, max.\u003c\/td\u003e\n\u003ctd\u003e60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection method\u003c\/td\u003e\n\u003ctd\u003e20-pin front connector required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e0.21 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eTen thermocouple types (B through U) and three RTD types (Ni100\/Pt100\/Pt200) on one module cover most hazardous-area temperature-measurement points on a single line without mixing module variants. The parameterizable 2.5-100 ms integration time trades noise rejection against update rate per channel group, and the matching 10-400 Hz interference-frequency suppression setting should track local mains frequency (50 or 60 Hz) to reject line noise on long thermocouple runs. The 0.008% basic error limit on RTD channels only applies at 25 degC; the wider 0.04% operational limit is what to budget against over the full ambient range.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960577188123,"sku":"6ES7331-7SF00-0AB0","price":1208.62,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7331-7sf00-0ab0-sm331-8ai-tc-4ai-rtd-ex.png?v=1789781911","url":"https:\/\/stoklink.com\/products\/siemens-6es7331-7sf00-0ab0-sm331-8ai-tc-4ai-rtd-ex","provider":"Stoklink","version":"1.0","type":"link"}