{"product_id":"286566-02-bently-nevada-3500-50m-tachometer-module","title":"286566-02 Bently Nevada 3500\/50M Tachometer Module","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 286566-02\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/50M\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTachometer Module, operates as a dedicated hardware component for frequency-to-voltage signal conversion and speed monitoring within the 3500 Machinery Protection System. This module processes input from eddy-current proximity probes or magnetic pickups to determine shaft rotational speed, providing primary protection and alarming functions based on pre-configured setpoints.\u003c\/p\u003e\n\u003ch3\u003eConfiguration Matrix\u003c\/h3\u003e\n\u003cp\u003eThe 286566-02 model represents a standard 3500\/50M Tachometer configuration utilizing internal signal processing circuitry compatible with standard 3500 series backplanes. The specific hardware implementation incorporates discrete signal processing paths for non-contact sensing inputs. No alternative modular configurations are denoted within this specific part number subset.\u003c\/p\u003e\n\u003ch3\u003ePhysical \u0026amp; Electrical Metrics\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e286566-02\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.92 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5 x 25.6 x 24 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40 deg C to +70 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7.7 W (typical)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRelay Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSPDT (Single Pole Double Throw)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRelay Cycle Rating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100,000 cycles\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHS Code\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8537101190\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBently Nevada TSI Mechanical Monitoring Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 3500\/50M module utilizes transducer signal conditioning specifically optimized for eddy-current probe scaling. This includes validation of -10 VDC targets for mid-gap positioning, ensuring that sensor inputs maintain linearity across the operational range. The module suppresses cross-talk between high-speed input channels through localized signal isolation, preventing interference from adjacent proximity probe signals. By monitoring rotor dynamics via frequency-to-voltage conversion, the module executes setpoint comparisons that trigger the onboard SPDT relays when input frequencies exceed velocity threshold parameters.\u003c\/p\u003e\n\u003ch3\u003eOrdering \u0026amp; Logistics\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eUnit includes the 3500\/50M Tachometer Module (286566-02).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStandard shipment includes the module assembly and static-shielded packaging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdditional components such as I\/O modules, terminal blocks, or configuration software must be ordered separately.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCertification documentation, including Certificate of Origin, is issued upon order fulfillment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Deployment Procedures\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure the module is seated into the 3500 rack backplane with proper alignment of the male\/female interface pins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTighten front-panel captive screws to ensure solid chassis ground and electrical contact.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify input signal wiring is shielded twisted-pair to mitigate electromagnetic interference in the instrument rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure the I\/O module matching the tachometer is installed in the rear of the rack to provide terminal connections for transducer signals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eObserve the LED status indicators upon power-up to confirm the module has passed self-diagnostic routines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Inquiry FAQ\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the response time for the relay actuation?\u003c\/p\u003e\n\u003cp\u003eThe relay actuation time is determined by the configured alarm delay; typically, signal processing and relay closure occur within 50 ms to 100 ms of the threshold breach.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this module be hot-swapped?\u003c\/p\u003e\n\u003cp\u003eYes, 3500 series modules are designed for hot-swap capability; however, ensure the rack is in a safe operational state to avoid unintended trip triggers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat signal types are supported?\u003c\/p\u003e\n\u003cp\u003eThe module supports inputs from proximity probes, magnetic pickups, and active speed sensors requiring voltage-level input switching.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the speed calculated?\u003c\/p\u003e\n\u003cp\u003eThe module calculates speed based on the frequency of input pulses detected from a target (e.g., keyway or gear tooth) per time unit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAre the relays configurable?\u003c\/p\u003e\n\u003cp\u003eYes, the SPDT relays are programmable via the 3500 configuration software to act based on high, low, or danger trip setpoints.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the significance of the gap voltage?\u003c\/p\u003e\n\u003cp\u003eGap voltage confirms the sensor probe is properly positioned within its linear range relative to the target, ensuring accurate frequency capture.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the module require an external I\/O module?\u003c\/p\u003e\n\u003cp\u003eYes, the 3500\/50M functions in conjunction with a corresponding I\/O module located in the rear of the rack to provide wiring terminals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the impact of power failure?\u003c\/p\u003e\n\u003cp\u003eThe module enters a fail-safe state where relays are de-energized, reflecting the lack of power to the monitoring loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45378088566957,"sku":"286566-02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-3500-50m-286566-02-tachometer-module-upbl1e2kq5e.jpg?v=1764225477","url":"https:\/\/www.maxwellplc.com\/products\/286566-02-bently-nevada-3500-50m-tachometer-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}