{"product_id":"176449-08-bently-nevada-3500-72m-system-recip-rod-position-monitor","title":"176449-08 Bently Nevada 3500\/72M System Recip Rod Position Monitor","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 176449-08\u003c\/strong\u003e, serving as a core component of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/72M Reciprocating Compressor Rod Position Monitor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseries, provides high-fidelity measurement of piston rod position and dynamic movement within reciprocating machinery. Engineered for the demanding requirements of Turbomachinery Supervisory Instrumentation (TSI) platforms, this module enables precise identification of rod drop, rider band wear, and mechanical misalignment—factors that typically lead to catastrophic cylinder or packing failure if left undetected.\u003c\/p\u003e\n\u003cp\u003eUnlike standard monitoring solutions, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/72M\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003earchitecture processes high-speed waveform data to capture the full mechanical cycle of the rod. By integrating this module into the 3500 rack system, facility engineers gain the diagnostic clarity required to move from reactive maintenance cycles to data-driven predictive strategies. The hardware is designed to operate in high-vibration, high-temperature industrial environments where continuous uptime is an economic necessity.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\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\u003e176449-08\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada 3500\/72M\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eReciprocating Rod Position Monitor\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBrand New\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\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\u003e-40 deg C to +70 deg C\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\u003e0.82 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5 x 25.8 x 24 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP65\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMODBUS RTU, Ethernet Router\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7.5 W (Typical)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eModel Configuration Explanation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e176449-08\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003epart number signifies a specific configuration within the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/72M\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efamily. This unit is optimized for interface with proximity probe transducer sets commonly used in reciprocating compressors. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-08\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esuffix identifies the internal logic configuration tailored for high-speed signal processing. It functions by converting input signals from proximity probes into real-time positional data, which is then communicated through the 3500 rack backplane to the system's interface module. This architecture ensures that data remains synchronized with other 3500-series monitors.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUpstream Gas Compression:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDetecting rider band wear in high-pressure natural gas boosters to prevent cylinder wall scoring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePetrochemical Refining:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMonitoring process gas compressors where gas chemistry may vary, requiring precise rod tracking to avoid crosshead misalignment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Generation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsuring the integrity of large-scale industrial reciprocating units used in auxiliary services.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOffshore Platforms:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eImplementing the module in space-constrained, high-humidity environments where reliable component performance is required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e176449-08\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis engineered for full integration with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 3500 System\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003earchitecture. It requires a compatible 3500 Rack, a Power Supply Module, and a Rack Interface Module (RIM). The module is compatible with existing 3500-series digital communication gateways, allowing it to feed data directly into\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDCS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePLC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eenvironments via\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMODBUS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEthernet\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprotocols. It is designed to be backward compatible with older 3500 rack backplanes.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRack Slot Allocation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure the module is installed in a slot configured for 3500\/72M compatibility. Use front-panel captive screws to achieve a firm seating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShielding and Grounding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse high-quality shielded cabling for all proximity probe inputs. Terminate the shield drain at the 3500 I\/O module common ground to mitigate electromagnetic interference (EMI).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTransducer Calibration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAfter installation, perform a gap voltage validation check. Ensure that the proximity probe is gapped correctly for the specific rod size and material.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInstall the 3500 rack in a climate-controlled enclosure whenever possible to minimize thermal fatigue and dust accumulation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Advantages\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePredictive Accuracy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProvides specific data points to distinguish between normal rod vibration and progressive mechanical wear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegration Flexibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports standardized communication protocols (\u003cstrong\u003eMODBUS\u003c\/strong\u003e), allowing the 3500 system to act as a centralized data hub.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental Robustness:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProven design life in the -40 to +70 deg C range, catering to both arctic and desert industrial climates.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLegacy Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eExtensive aftermarket availability ensures that replacement hardware remains accessible for long-term lifecycle management.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eOrdering Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStandard Package:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes the 176449-08 monitor module unit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Accessories:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure you have the corresponding 3500\/72M I\/O card (Internal barrier or non-barrier I\/O module).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration Tools:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRequires 3500 Rack Configuration Software for programming alarm setpoints.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUnits are supplied in factory-standard, anti-static protective packaging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 176449-08 compatible with all 3500 racks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it is compatible with all standard 3500 system racks, provided the rack is equipped with the correct I\/O module and firmware version.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support MODBUS communication?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it fully supports MODBUS communication, allowing for seamless data integration into existing DCS and PLC networks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary purpose of the 176449-08?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is specifically designed for rod position monitoring in reciprocating compressors to detect rider band wear and rod misalignment early.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this model currently in active production?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the 176449-08 was discontinued on December 31, 2018; however, it remains available as new-in-box surplus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan this module be installed in outdoor, unsheltered environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile it has an IP65 rating, it is recommended to house the 3500 system in a NEMA\/IP-rated enclosure to extend its operational lifespan.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the operating temperature range?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is engineered to operate reliably in harsh environments ranging from -40 deg C up to +70 deg C.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require recalibration during its service life?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 3500\/72M is known for its stability; however, periodic verification of probe gap voltages and alarm setpoints is recommended during routine maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I configure the rod position alarm setpoints?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConfiguration is performed via the Bently Nevada 3500 Rack Configuration software, allowing users to set custom alerts based on machine-specific tolerances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45378092073133,"sku":"176449-08","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-3500-72m-176449-08-recip-rod-position-monitor-ixnkabghioe.jpg?v=1764225525","url":"https:\/\/www.maxwellplc.com\/products\/176449-08-bently-nevada-3500-72m-system-recip-rod-position-monitor","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}