{"product_id":"beckhoff-el3751-ethercat-terminal-multi-function-analog-input-module","title":"BECKHOFF EL3751 EtherCAT Terminal Multi-Function Analog Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-precision industrial data acquisition, the \u003cstrong\u003eBECKHOFF EL3751\u003c\/strong\u003e is a single-channel, multi-function analog input \u003cstrong\u003eEtherCAT Terminal\u003c\/strong\u003e delivering 24-bit resolution at sampling rates up to 10 ksps. This versatile measurement module processes multiple signal types including voltage, current, resistance, temperature via RTDs, and bridge sensors. By leveraging high-speed oversampling and distributed clocks with sub-microsecond synchronization, it ensures precise timing and dynamic control-loop integration.\u003c\/p\u003e\n\n\u003cp\u003eThe unit features a highly flexible input structure supporting 2-, 3-, 4-, 5-, and 6-wire connection configurations, eliminating the need for various dedicated module types. Onboard digital signal processing features include a freely parameterizable numeric filter, TrueRMS calculations, integration\/differentiation, and PeakHold extraction. Additionally, an integrated, parameterizable power supply (0.5 to 5 V) is provided directly on-terminal to power external strain gauges and bridge sensors.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-channel multi-functional measurement with high-precision 24-bit resolution.\u003c\/li\u003e\n  \u003cli\u003eOversampling factor configurable from n = 1 to 64 for detailed process image extraction.\u003c\/li\u003e\n  \u003cli\u003eDistributed clocks functionality synchronized to less than 1 us.\u003c\/li\u003e\n  \u003cli\u003eFlexible wiring interface supporting 2-, 3-, 4-, 5-, and 6-wire connection technologies.\u003c\/li\u003e\n  \u003cli\u003eBroad signal support including voltage (+\/-30 V down to +\/-5 mV), current (+\/-20 mA, 4...20 mA), RTDs, resistance, and strain gauges.\u003c\/li\u003e\n  \u003cli\u003eIntegrated parameterizable excitation power supply (0.5 to 5 V) for bridge sensors.\u003c\/li\u003e\n  \u003cli\u003eElectrical isolation of 500 V between the E-bus and signal electronics.\u003c\/li\u003e\n  \u003cli\u003eExtended range performance allowing technical measurements up to 107% of the nominal scale.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-speed test bench automation and dynamic load testing.\u003c\/li\u003e\n  \u003cli\u003ePrecision industrial weighing systems and force measurement.\u003c\/li\u003e\n  \u003cli\u003ePower generation and electrical grid parameter analysis using TrueRMS calculations.\u003c\/li\u003e\n  \u003cli\u003eMachine monitoring systems utilizing strain, pressure, and temperature sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n      \u003ctd\u003eBECKHOFF\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003ePart Number \/ Model\u003c\/strong\u003e\n      \u003ctd\u003eEL3751\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eProduct Type\u003c\/strong\u003e\n      \u003ctd\u003eEtherCAT Terminal (1-Channel Analog Input)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eResolution\u003c\/strong\u003e\n      \u003ctd\u003e24 bit (including sign)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eConversion Time\u003c\/strong\u003e\n      \u003ctd\u003e100 us \/ 10 ksps\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eOversampling Factor\u003c\/strong\u003e\n      \u003ctd\u003en = 1 to 64\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eDistributed Clocks Precision\u003c\/strong\u003e\n      \u003ctd\u003eless than 1 us\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eInput Resistance\u003c\/strong\u003e\n      \u003ctd\u003egreater than 500 kOhm (30 V range), greater than 4 MOhm (other voltage ranges), 150 Ohm (current range)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eInput Filter Limit Frequency\u003c\/strong\u003e\n      \u003ctd\u003e3 kHz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eDielectric Strength\u003c\/strong\u003e\n      \u003ctd\u003emax. 36 V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eNominal Measuring Ranges\u003c\/strong\u003e\n      \u003ctd\u003e+\/-30 V, +\/-10 V, +\/-5 V, +\/-2.5 V, +\/-1.25 V, +\/-640 mV, +\/-320 mV, +\/-160 mV, +\/-80 mV, +\/-40 mV, +\/-20 mV, +\/-10 mV, +\/-5 mV, 0...5 V, 0...10 V, +\/-20 mA, 0\/4...20 mA, NAMUR NE43, 0...5 kOhm, Pt100\/Pt1000, Ni, KTY, 1\/4 bridge (350 Ohm + 120 Ohm), 1\/2 bridge (+\/-16 mV\/V), full bridge (+\/-32 mV\/V), potentiometer (greater than or equal to 1 kOhm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eTechnical Measuring Range\u003c\/strong\u003e\n      \u003ctd\u003eTypically 107% of nominal range (ExtendedRange)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eMeasuring Error\u003c\/strong\u003e\n      \u003ctd\u003etyp. +\/-0.01% of full scale value at 23 degC (range dependent)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\n      \u003ctd\u003etyp. less than 15 ppm\/K (range dependent)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eElectrical Isolation\u003c\/strong\u003e\n      \u003ctd\u003e500 V (E-bus \/ signal voltage)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eCurrent Consumption E-bus\u003c\/strong\u003e\n      \u003ctd\u003etyp. 260 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eWeight\u003c\/strong\u003e\n      \u003ctd\u003eapprox. 65 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\n      \u003ctd\u003e0 to +55 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\n      \u003ctd\u003e-25 to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\n      \u003ctd\u003e95%, non-condensing\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eVibration \/ Shock Resistance\u003c\/strong\u003e\n      \u003ctd\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eEMC Immunity \/ Emission\u003c\/strong\u003e\n      \u003ctd\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eProtection Rating\u003c\/strong\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eEx Marking\u003c\/strong\u003e\n      \u003ctd\u003eII 3 G Ex nA IIC T4 Gc\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\n      \u003ctd\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eConnection Type\u003c\/th\u003e\n      \u003cth\u003eSpecification \/ Cross-Section\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWiring Technology\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSpring actuation by screwdriver; solid, flexible, or ferrule conductors\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSolid \/ Stranded Conductor Cross-Section\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.08 to 2.5 mm² (AWG 28 to 14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eFlexible Conductor with Ferrule\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.14 to 1.5 mm² (AWG 26 to 16)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStripping Length\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e8 to 9 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMount the terminal on a standard 35 mm DIN rail conforming to EN 60715 using the secure locking mechanism.\u003c\/li\u003e\n  \u003cli\u003eEnsure double slot and key connections are correctly aligned for reliable backplane contact with adjacent EtherCAT terminals.\u003c\/li\u003e\n  \u003cli\u003eIsolate the power supply before connecting or disconnecting any wiring terminals.\u003c\/li\u003e\n  \u003cli\u003eAdhere to specified clearance for ventilation to maintain operating temperatures below 55 degC.\u003c\/li\u003e\n  \u003cli\u003eIn hazardous environments, confirm compliance with Zone 2 installation regulations according to classification II 3 G Ex nA IIC T4 Gc.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106483855723,"sku":"EL3751","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el3751-xutiku4ivww.png?v=1776244505","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-el3751-ethercat-terminal-multi-function-analog-input-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}