{"product_id":"reciprocating-machinery-monitor-140734-08-bently-nevada","title":"Reciprocating Machinery Monitor | 140734-08 Bently Nevada","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 3500\/72M (Part Number 140734-08)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a high-performance\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eReciprocating Dynamic Pressure Monitor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithin the 3500 Machinery Protection System. This four-channel module accepts signals from dynamic pressure transducers and processes them to evaluate the performance and mechanical integrity of reciprocating compressors and combustion turbines. It identifies pressure-related anomalies such as cylinder leaks, valve malfunctions, and combustion instabilities. We supply this module as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original in Factory Packing\u003c\/strong\u003e, providing the high-speed data acquisition necessary for advanced machinery diagnostics.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3500\/72M\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e140734-08\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Independent Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Types\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDynamic Pressure Transducers (Charge or Voltage)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1 Hz to 30 kHz (Sensor dependent)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSignal Processing\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePeak-to-Peak Pressure, Rod Drop, and Impact\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eScale Factor\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eConfigurable via 3500 Rack Software\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±1% of Full Scale\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0°C to +60°C (32°F to +140°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStorage Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e–40°C to +85°C (–40°F to +185°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3500 System Rack Slot\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.9 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Transient Detection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 3500\/72M utilizes specialized sampling rates to capture fast pressure transients in reciprocating cylinders. It detects microscopic pressure fluctuations that indicate cracked valves or worn piston rings before they cause a full system trip.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCombustion Stability Monitoring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIn gas turbine applications, the module tracks dynamic pressure pulsations in the combustion chamber. This monitoring prevents Lean Blow Out (LBO) and flashback conditions, protecting the turbine hot section from thermal stress and mechanical fatigue.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Rod Drop Logic:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 140734-08 supports rod drop measurements to monitor rider band wear on reciprocating compressors. It integrates the pressure data with shaft position to provide an accurate assessment of piston clearances during operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeamless Backplane Synchronization:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module shares data across the 3500 rack backplane, allowing for time-correlated analysis with vibration and speed data. This holistic view enables maintenance teams to distinguish between process-related pressure spikes and mechanical vibration faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRugged EMI Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBently Nevada builds the 140734-08 with high-grade shielding to reject interference from nearby industrial equipment. This ensures that the low-voltage signals from pressure transducers remain accurate and noise-free.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 3500\/72M monitor centrifugal vibration?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 3500\/72M is specifically optimized for dynamic pressure and reciprocating machinery parameters. For standard centrifugal vibration monitoring (radial or axial), you should use the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/42M Proximitor Seismic Monitor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module compatible with all 3500 series racks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 140734-08 installs into any standard full-size or mini-rack in the 3500 series. However, you must ensure your Rack Interface Module (RIM) and configuration software support the M-series firmware.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this unit include the I\/O module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 140734-08 refers to the main monitor module. Depending on your field wiring requirements (Internal Terminations or External Terminations), you may need a specific rear I\/O module to complete the installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the condition of the stock?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe guarantee that this part is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e. It ships in the original factory-sealed box with all factory documentation, ensuring compliance with your plant's reliability standards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":43190698082394,"sku":"140734-08","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/49.1_424dff37-f157-48f9-9bfb-35522a5c2e20.jpg?v=1775620246","url":"https:\/\/www.spareoil.com\/products\/reciprocating-machinery-monitor-140734-08-bently-nevada","provider":"SpareOil Automation","version":"1.0","type":"link"}