{"product_id":"bently-nevada-125769-01-proximitor-seismic-monitor-module","title":"Bently Nevada 125769-01 Proximitor\/Seismic Monitor Module","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eBently Nevada 125769-01 Proximitor\/Seismic Monitor Module\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 125769-01\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e125769-01 Proximitor\/Seismic Monitor Module\u003c\/strong\u003e, operates as a dedicated hardware component for continuous vibration signal acquisition and processing within the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500 Machinery Protection System\u003c\/strong\u003e. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e125769-01\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProximitor\/Seismic Monitor Module provides direct electrical execution of 4-channel measurement aggregation for proximity probe and seismic transducer inputs, delivering conditioned outputs for downstream monitoring logic.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eNo formal suffix segmentation is defined for model 125769-01. The identifier functions as a fixed catalog number within the 3500\/42M module family.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\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\u003e125769-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.85 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e241.3 x 24.4 x 163.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-30 deg C to +65 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e7.7 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4-channel vibration monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Inputs\u003c\/td\u003e\n\u003ctd\u003eProximity probes \/ seismic transducers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Outputs\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC proportional outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003e3500 chassis rack-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot-Swap Capability\u003c\/td\u003e\n\u003ctd\u003eSupported (trip inhibit required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Bias Monitoring\u003c\/td\u003e\n\u003ctd\u003e-1 VDC to -19 VDC window detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCross-talk Suppression\u003c\/td\u003e\n\u003ctd\u003eIntegrated channel isolation circuitry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBently Nevada Cross-talk Suppression Behavior in 3500 Architecture\u003c\/h3\u003e\n\u003cp\u003eThe 125769-01 module implements channel-level signal separation to reduce interference between adjacent vibration measurement paths. In multi-probe rotor systems, cross-talk suppression maintains waveform independence during high-amplitude shaft vibration conditions, preventing phase distortion in synchronous demodulation processes.\u003c\/p\u003e\n\u003cp\u003eWithin eddy-current proximity probe interfaces, isolation behavior preserves gap voltage stability referenced around the -10 VDC operating region. This ensures that adjacent channel excitation does not influence bias tracking or displacement scaling accuracy during transient mechanical events. The suppression network operates at the analog conditioning stage prior to 4-20 mA conversion.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 125769-01 be hot-swapped while the 3500 rack is energized?\u003cbr\u003eA: Yes, hot-swap is supported. However, trip inhibit must be applied to the corresponding protection channels to prevent unintended alarm or shutdown signals during module replacement.\u003c\/p\u003e\n\u003cp\u003eQ: What happens if sensor bias voltage moves outside the -1 VDC to -19 VDC window?\u003cbr\u003eA: The module interprets this as a sensor fault condition, triggering diagnostic indication for probe failure, open circuit, or incorrect gap setting.\u003c\/p\u003e\n\u003cp\u003eQ: Does each channel share signal conditioning circuitry?\u003cbr\u003eA: No. Each channel is independently processed with isolation paths to reduce inter-channel interference and maintain measurement separation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eThe module must be installed into a compatible 3500 chassis slot with secure backplane engagement. Mechanical seating should be verified before energizing the rack.\u003c\/p\u003e\n\u003cp\u003eProximity probe and seismic transducer cables must be routed separately from high-voltage conductors. Shield termination should be implemented at a single grounding point to prevent ground loop formation across measurement channels.\u003c\/p\u003e\n\u003cp\u003eDuring hot-swap operations, ensure trip inhibit is active on affected channels before removal. Post-installation verification should include confirmation of sensor bias voltage stability and channel readiness status.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44296040972376,"sku":"125769-01","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/161216-011_d40efda0-01d7-4a4c-8186-cda30d1e6448.jpg?v=1782806478","url":"https:\/\/www.industriaxplc.com\/products\/bently-nevada-125769-01-proximitor-seismic-monitor-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}