{"product_id":"bently-nevada-3500-42m-140734-02-proximity-seismic-monitor-module","title":"Bently Nevada 3500\/42M 140734-02 Proximity\/Seismic Monitor Module","description":"\u003ch2\u003eBently Nevada 3500\/42M 140734-02 Proximity\/Seismic Monitor Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 3500\/42M 140734-02\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e140734-02\u003c\/strong\u003e Proximitor\/Seismic Monitor, operates as a dedicated hardware component for continuous machinery protection and signal conditioning within 3500 Rack systems.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOption Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDescription \/ Standard Specifications\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3500\/42M\u003c\/td\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003eProximitor\/Seismic Monitor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e140734-02\u003c\/td\u003e\n\u003ctd\u003eOrdering Option\u003c\/td\u003e\n\u003ctd\u003eProximity\/Seismic Monitor Module Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003e3500\/42M 140734-02\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\u003e2.5 x 25.8 x 24 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e550 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransducer Power Supply\u003c\/td\u003e\n\u003ctd\u003e-24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Compliance\u003c\/td\u003e\n\u003ctd\u003e0 to +12 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGap Filter\u003c\/td\u003e\n\u003ctd\u003e-3 dB at 0.09 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmax Accuracy\u003c\/td\u003e\n\u003ctd\u003eWithin ±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eMechanical Monitoring \u0026amp; TSI Integration\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e3500\/42M\u003c\/strong\u003e module provides four-channel input processing for \u003cstrong\u003erotor dynamics\u003c\/strong\u003e monitoring, effectively managing \u003cstrong\u003eeddy-current probe scaling\u003c\/strong\u003e for proximity inputs and signal integration for seismic sensors. Accurate \u003cstrong\u003egap voltage validation\u003c\/strong\u003e is critical for proper operation, as the monitor processes raw signals to derive displacement and vibration values. The module incorporates \u003cstrong\u003ecross-talk suppression\u003c\/strong\u003e within the backplane interface to ensure signal isolation across multiple channels, preventing interference during high-density rack configurations. Alarm setpoints are managed via 3500 Rack Configuration Software, supporting \u003cstrong\u003efail-safe state execution\u003c\/strong\u003e to protect machinery in the event of transducer or module fault.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 3500\/42M be hot-swapped during system operation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA: Yes.\u003c\/strong\u003e The 3500 series backplane supports hot-swapping of monitor modules; however, ensure the rack configuration is updated to recognize the specific module slot and I\/O module type to prevent communication faults.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the purpose of the 0.09 Hz gap filter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA: Signal Stabilization.\u003c\/strong\u003e This filter is utilized to remove low-frequency drift and thermal expansion noise from the proximity probe signal, ensuring that static position measurements (such as thrust or differential expansion) remain stable during transient machine states.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Insertion:\u003c\/strong\u003e Align the 3500\/42M module carefully with the backplane connector. Ensure the module is fully seated and the front panel levers are locked to maintain reliable electrical contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Termination:\u003c\/strong\u003e Use shielded twisted-pair cabling for all transducer inputs to mitigate EMI. Ensure the shield is terminated at the I\/O module ground terminal to maintain effective common-mode rejection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguring Channels:\u003c\/strong\u003e Use the 3500 Rack Configuration Software to map specific transducer types (e.g., proximity or seismic) to each channel. Verify input signals in the software interface before establishing active alarm setpoints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Maintain a low-impedance connection between the 3500 rack chassis and the plant instrument ground to prevent ground loops, which can introduce offset errors in the -24 VDC transducer supply.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44367488024675,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/140734-02-1_aa064e74-1994-452e-b7bc-e80dac7b34d9.jpg?v=1784253203","url":"https:\/\/precisemodule.com\/products\/bently-nevada-3500-42m-140734-02-proximity-seismic-monitor-module","provider":"Precise Module Ltd.","version":"1.0","type":"link"}