{"product_id":"3500-70-01-00-bently-nevada-recip-impulse-velocity-monitor-module","title":"3500\/70-01-00 Bently Nevada Recip Impulse\/Velocity Monitor Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e3500\/70-01-00\u003c\/span\u003e\u003c\/strong\u003e is a dedicated 4-channel monitor for reciprocating compressors.\u003c\/li\u003e\n\u003cli\u003eIt forms a vital part of the \u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/bently-nevada-3500-monitoring-system\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eBently Nevada\u003c\/span\u003e\u003c\/strong\u003e 3500 machinery protection system\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eThis \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e3500\/70-01-00\u003c\/span\u003e\u003c\/strong\u003e unit specializes in impulse acceleration and velocity measurements.\u003c\/li\u003e\n\u003cli\u003eFeatures precise signal conditioning for crankcase and crosshead vibration monitoring.\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e3500\/70-01-00\u003c\/span\u003e\u003c\/strong\u003e helps prevent catastrophic failure through programmable alarm logic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eConfiguration Breakdown\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel: 3500\/70M\u003c\/strong\u003e — Recip Impulse\/Velocity Monitor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuffix A: 01 (I\/O Option)\u003c\/strong\u003e — Prox\/Velom I\/O Module with Internal Terminations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuffix B: 00 (Agency Approval)\u003c\/strong\u003e — No agency approval required (None)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eBently Nevada\u003c\/span\u003e\u003c\/strong\u003e \/ Baker Hughes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e3500\/70-01-00\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Capacity:\u003c\/strong\u003e 4 independent channels (Proximity or Seismic)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogic Modes:\u003c\/strong\u003e Impulse Accel, Accel 2, Recip Velocity, Low Frequency Velocity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e 10 kΩ for acceleration; \u0026gt;1 MΩ for velocity inputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Power:\u003c\/strong\u003e -22 Vdc minimum; 40 mA maximum current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Quality:\u003c\/strong\u003e 4-pole high\/low pass with 80 dB per decade roll-off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e Within ±0.33% typical; ±1% maximum (exclusive of filters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Type:\u003c\/strong\u003e 4-20 mA proportional recorder outputs per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication:\u003c\/strong\u003e Integrated TX\/RX for 3500 rack data exchange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -30°C to +65°C (-22°F to +149°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.91 kg (2.0 lb) for main monitor module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB’s Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e3500\/70-01-00\u003c\/span\u003e\u003c\/strong\u003e provides the specialized \"Impulse\" logic missing in general vibration monitors.\u003c\/li\u003e\n\u003cli\u003eOur review notes the 8-revolution smoothing filter as a key feature for stable static value readings.\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e3500\/70-01-00\u003c\/span\u003e\u003c\/strong\u003e effectively bridges the gap between raw seismic data and actionable plant maintenance info.\u003c\/li\u003e\n\u003cli\u003ePerfect for legacy system upgrades where high-reliability reciprocating protection is a priority.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePrimary Equipment \u0026amp; Application Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Compression:\u003c\/strong\u003e Monitoring heavy-duty reciprocating compressors in midstream gas plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefinery Operations:\u003c\/strong\u003e Cylinder and frame vibration tracking for hydrogen compression units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpact Detection:\u003c\/strong\u003e Identifying mechanical looseness in crosshead and connecting rod assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-synchronous Analysis:\u003c\/strong\u003e Tracking low-frequency vibration signatures during variable speed operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDiagnostic \u0026amp; Protection Capabilities\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal-time Indicators:\u003c\/strong\u003e OK, TX\/RX, and Bypass LEDs for immediate module status verification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFault Rejection:\u003c\/strong\u003e \"Not OK\" filter triggers at 2400 Hz to prevent erroneous data from hardware faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuffered Data:\u003c\/strong\u003e Front-panel coaxial outputs for high-resolution analyzer integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Alarms:\u003c\/strong\u003e User-programmable Alert and Danger setpoints for tailored machinery protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping and Purchase Terms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpress Logistics:\u003c\/strong\u003e Worldwide expedited shipping via FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch Time:\u003c\/strong\u003e Most \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e3500\/70-01-00\u003c\/span\u003e\u003c\/strong\u003e orders ship within 24-48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Fully backed by a \u003cstrong\u003e12-month comprehensive warranty\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage List:\u003c\/strong\u003e Includes one (1) \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e3500\/70-01-00\u003c\/span\u003e\u003c\/strong\u003e monitor and matching I\/O module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I use Velomitor sensors with the 3500\/70-01-00?\u003c\/strong\u003e Yes, the \"01\" I\/O module is specifically designed to interface with both Proximitor and Velomitor sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat happens to the 4-20mA output if the monitor goes into \"Bypass\"?\u003c\/strong\u003e The Bypass LED will illuminate, and the alarm logic will be inhibited; however, the recorder output will typically continue to reflect the current signal level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow do I configure the specific impulse bands?\u003c\/strong\u003e Impulse bands (start and duration) are configured using the 3500 Rack Configuration Software with 1-degree resolution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs the 3500\/70-01-00 compatible with internal barriers?\u003c\/strong\u003e This specific part number (-01-00) uses internal terminations without barriers. Barrier versions require a different A-suffix.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelection Guide: Why prioritize the 3500\/70-01-00 for Recip machines?\u003c\/strong\u003e Standard vibration modules can miss short-duration impacts; the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e3500\/70-01-00\u003c\/span\u003e\u003c\/strong\u003e is purpose-built to catch these \"shocks,\" ensuring complete protection for reciprocating frames.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45093302010038,"sku":"3500\/70-01-00","price":368.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/3500-70-01-00.jpg?v=1777362920","url":"https:\/\/www.plcsparehub.com\/products\/3500-70-01-00-bently-nevada-recip-impulse-velocity-monitor-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}