{"product_id":"emerson-mms3120-022-100-epro-mms3000-vibration-transmitter","title":"Emerson MMS3120\/022-100 EPRO MMS3000 Vibration Transmitter","description":"\u003ch2\u003eEmerson EPRO MMS3120\/022-100 MMS3000 Vibration Transmitter\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eEmerson EPRO MMS3120\/022-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMMS3120\u003c\/strong\u003e Vibration Transmitter, operates as a dedicated hardware component for absolute bearing vibration measurement within MMS3000 protection platforms. The unit processes signals from electrodynamic velocity transducers across two independent measurement channels using an integrated microcontroller. Internal signal conditioning executes limit supervision, sensor health diagnostics, and channel output mapping, transmitting proportional 0\/4-20 mA current loops along with RS232, RS485, and Modbus RTU telemetry to host supervisory networks.\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\u003eMMS3120\/022-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEmerson (EPRO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e160 x 160 x 120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +65 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePowered via field supply \/ transmitter terminal loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003eDual-channel independent monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003eElectrodynamic transducers (PR9268\/20, PR9268\/60 series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Outputs\u003c\/td\u003e\n\u003ctd\u003eConfigurable 0-20 mA \/ 4-20 mA current loops\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Interfaces\u003c\/td\u003e\n\u003ctd\u003eRS232, RS485 (Modbus RTU protocol)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration Tool\u003c\/td\u003e\n\u003ctd\u003eMMS3910W setup software\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation \u0026amp; Signal Loop Processing\u003c\/h3\u003e\n\u003cp\u003eThe internal signal conditioning paths incorporate channel-to-channel isolation to eliminate ground loop currents and cross-channel noise coupling across industrial field wiring. Each channel conditions raw velocity inputs from electrodynamic sensors, applying microcontroller-based filtering to derive peak and RMS vibration amplitudes. Diagnostic circuits continuously evaluate input impedance and bias levels to perform sensor health validation, driving assigned 4-20 mA loop outputs to predetermined fault levels upon detecting signal line interruptions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the MMS3120\/022-100 transmitter configured for specific measurement ranges?\u003c\/p\u003e\n\u003cp\u003eA: Operational parameters, limit supervision thresholds, and output scale assignments are configured via serial interface using the dedicated MMS3910W software package.\u003c\/p\u003e\n\u003cp\u003eQ: What action does the transmitter take if an electrodynamic sensor line suffers a wire break?\u003c\/p\u003e\n\u003cp\u003eA: Integrated microcontroller diagnostics detect open-circuit sensor conditions, drive the corresponding analog 4-20 mA loop to a diagnostic error current, and trip internal fault status flags.\u003c\/p\u003e\n\u003cp\u003eQ: Can both channels be mapped independently to separate control system inputs?\u003c\/p\u003e\n\u003cp\u003eA: Yes, each measuring channel provides isolated 0\/4-20 mA current loop outputs that route independently to distinct PLC or DCS input cards.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the transmitter housing directly to field enclosure backplanes using secure fasteners to withstand continuous industrial ambient vibration.\u003c\/li\u003e\n\u003cli\u003eRoute electrodynamic transducer wiring through individual shielded cable pairs, ensuring signal lines remain physically separated from high-voltage supply circuits.\u003c\/li\u003e\n\u003cli\u003eTerminate shield drain wires at a single dedicated instrumentation earth ground point to preserve signal integrity and prevent ground loop interference.\u003c\/li\u003e\n\u003cli\u003eVerify field DC power supply levels and confirm ground isolation parameters prior to applying power and establishing serial communication via the MMS3910W tool.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":51221953413432,"sku":"MMS3120\/022-100","price":256.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/259..jpg?v=1788254451","url":"https:\/\/www.automodulexpert.com\/products\/emerson-mms3120-022-100-epro-mms3000-vibration-transmitter","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}