{"product_id":"bently-nevada-3500-70m-176449-09-velocity-monitor","title":"Bently Nevada 3500\/70M 176449-09 Recip Impulse Velocity Monitor","description":"\u003cp\u003eThe Bently Nevada 3500\/70M 176449-09 is a 4-channel Recip Impulse Velocity Monitor designed for the 3500 series rack-based monitoring system. It is specifically engineered to provide critical protection for reciprocating compressors by monitoring crankcase and crosshead vibration. The module processes inputs from seismic transducers, conditions the signals to derive precise vibration measurements, and evaluates them against user-programmable alarm setpoints.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFour-channel monitoring capability for high-density rack configurations.\u003c\/li\u003e\n\u003cli\u003eSupports multiple measurement modes including Impulse Acceleration, Acceleration 2, Recip Velocity, and Low Frequency Recip Velocity.\u003c\/li\u003e\n\u003cli\u003eProgrammable Alert and Danger setpoints for active static values.\u003c\/li\u003e\n\u003cli\u003eFast update rate of less than 100 milliseconds for real-time protection.\u003c\/li\u003e\n\u003cli\u003eCompatible with 3500 series rack infrastructure and configuration software.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReciprocating Compressors: Essential for detecting mechanical faults in crankcases and crossheads.\u003c\/li\u003e\n\u003cli\u003ePipeline Compression: Maintains the operational reliability of large-scale compressor stations.\u003c\/li\u003e\n\u003cli\u003eOil and Gas Production: Supports monitoring requirements for upstream and downstream gas compression assets.\u003c\/li\u003e\n\u003cli\u003eChemical and Petrochemical Processing: Provides vibration monitoring for critical rotating and reciprocating equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e3500\/70M 176449-09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e7.7 W (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Input\u003c\/td\u003e\n\u003ctd\u003e-22 Vdc (minimum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e550 Ohm (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Resistance\u003c\/td\u003e\n\u003ctd\u003e600 Ohm (maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.3662 uA (maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.05 mA; +\/- 0.14 mA over temperature range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degC to +85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the 3500 rack power is disconnected before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eThe module should be seated firmly into the designated rack slot to ensure proper backplane connection.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for all transducer inputs to minimize electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the 3500 rack chassis to a common instrument ground to maintain signal integrity.\u003c\/li\u003e\n\u003cli\u003eVerify that the module configuration matches the installed transducer type and required alarm setpoints via the 3500 configuration software.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the 3500\/70M module?\u003c\/strong\u003e\u003cbr\u003eThe 3500\/70M is a 4-channel monitor designed to process seismic transducer inputs for reciprocating compressor vibration analysis, specifically for crankcase and crosshead monitoring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the 3500\/70M differ from the 3500\/72M?\u003c\/strong\u003e\u003cbr\u003eWhile both are 4-channel rack-based monitors for reciprocating compressors, the 3500\/70M is designed for seismic vibration inputs, whereas the 3500\/72M is intended for piston rod position and drop monitoring using proximity probes.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":50998351986940,"sku":"3500\/70M 176449-09","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_029cb283-8b90-4c25-9ef9-010934f744f0.jpg?v=1787165793","url":"https:\/\/www.electronicplc.com\/products\/bently-nevada-3500-70m-176449-09-velocity-monitor","provider":"Electronic PLC","version":"1.0","type":"link"}