{"product_id":"bently-nevada-3500-72m-140734-08-recip-rod-position-monitor-module","title":"Bently Nevada 3500\/72M 140734-08 Recip Rod Position Monitor Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3500\/72M 140734-08\u003c\/strong\u003e\u003c\/span\u003e delivers continuous machinery protection for reciprocating compressors.\u003c\/p\u003e\n\u003cp\u003eThis four-channel monitor accepts signals from proximity transducers.\u003c\/p\u003e\n\u003cp\u003eIt conditions input signals to track dynamic and static rod position.\u003c\/p\u003e\n\u003cp\u003eThe module compares conditioned values against user-programmable alarm setpoints.\u003c\/p\u003e\n\u003cp\u003eIt fully satisfies API 618 machinery monitoring requirements.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter Category\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e3500\/72M 140734-08\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3500 Series\u003c\/strong\u003e\u003c\/span\u003e System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReciprocating Rod Position Monitor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels \u0026amp; Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 channels accepting 1 to 4 proximity probe inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Scale Factors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.79 mV\/µm (20 mV\/mil), 3.94 mV\/µm (100 mV\/mil), or 7.87 mV\/µm (200 mV\/mil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWithin ±0.33% of full-scale typical (±1% maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDirect Position: Fixed 1 Hz to 600 Hz; Gap Filter: -3 dB at 0.09 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.7 Watts nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransducer Power Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-24 Vdc output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuffered Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront coaxial connector per channel (510 Ω output impedance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhysical Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.91 kg (2.0 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eSystem Compatibility \u0026amp; Architecture\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrates seamlessly into the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3500 Series\u003c\/strong\u003e\u003c\/span\u003e rack system.\u003c\/li\u003e\n\u003cli\u003eCommunicates via standard 3500 backplane protocol across all rack slots.\u003c\/li\u003e\n\u003cli\u003ePairs with standard proximity transducer systems including 3300 XL probes.\u003c\/li\u003e\n\u003cli\u003eSupports single channel, pair channel, rod drop, and hyper-compressor configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSlide the module into an open rack slot until it seats securely.\u003c\/li\u003e\n\u003cli\u003eTighten the captive thumb screws to lock the module in place.\u003c\/li\u003e\n\u003cli\u003eConnect proximity probe field wiring to the corresponding rear terminal block.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of cable shields to prevent signal noise interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCommissioning \u0026amp; Maintenance Ease\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFront-panel status LEDs show OK, TX\/RX, and Bypass operational states.\u003c\/li\u003e\n\u003cli\u003eFront-panel coaxial connectors provide quick buffered output access for diagnostic instruments.\u003c\/li\u003e\n\u003cli\u003eShort-circuit protection on buffered outputs prevents hardware damage during testing.\u003c\/li\u003e\n\u003cli\u003eOperators adjust software configuration parameters through 3500 Rack Configuration Software.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Application Scenarios \u0026amp; Diagnostic Capabilities\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3500\/72M 140734-08\u003c\/strong\u003e\u003c\/span\u003e monitors critical reciprocating compressor components.\u003c\/p\u003e\n\u003cp\u003eIt processes key parameters to detect mechanical degradation early.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod Drop Monitoring:\u003c\/strong\u003e Tracks rider ring wear in real time to prevent piston-to-cylinder contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod Position Measurements:\u003c\/strong\u003e Evaluates average and instantaneous piston position relative to crank angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHyper-Compressor Analysis:\u003c\/strong\u003e Monitors peak-to-peak displacement, 1X, 2X, and Not 1X vibration amplitudes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic Data Capture:\u003c\/strong\u003e Generates phase vector data and gap voltage metrics for predictive maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Certifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeets API 618 machinery protection standards for reciprocating compressors.\u003c\/li\u003e\n\u003cli\u003eComplies with international EMC standards for industrial electromagnetic immunity.\u003c\/li\u003e\n\u003cli\u003eMeets CE compliance standards for electronic industrial automation hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eOur field engineering team frequently deploys the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e3500\/72M 140734-08\u003c\/strong\u003e\u003c\/span\u003e on heavy-duty hydrogen reciprocating compressors.\u003c\/p\u003e\n\u003cp\u003eRider ring failure causes severe cylinder scoring and costly unscheduled shutdown events.\u003c\/p\u003e\n\u003cp\u003eIn one refinery installation, this module detected 0.15 mm of gradual rider ring wear over six months.\u003c\/p\u003e\n\u003cp\u003eThe early alarm enabled planned maintenance during a scheduled outage, saving significant repair costs.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSelection \u0026amp; Ordering Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm your compressor type requires API 618 compliant rod position tracking.\u003c\/li\u003e\n\u003cli\u003eVerify that your probe scale factor matches 20 mV\/mil, 100 mV\/mil, or 200 mV\/mil.\u003c\/li\u003e\n\u003cli\u003eEnsure your system rack has an available full-height slot for installation.\u003c\/li\u003e\n\u003cli\u003eSelect matching rear termination modules based on your field wiring configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents \u0026amp; Delivery Terms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 x \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3500\/72M 140734-08\u003c\/strong\u003e\u003c\/span\u003e Monitor Module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Includes a comprehensive 12-month factory warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch Time:\u003c\/strong\u003e Ships within 24 to 48 hours following order confirmation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCourier Partners:\u003c\/strong\u003e Worldwide express delivery via FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat key function does this module perform in reciprocating compressor monitoring?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt conditions proximity probe signals to measure rod position, rider ring wear, and overall rod drop.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I access raw vibration signals directly from the front panel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, individual coaxial connectors on the front panel provide buffered transducer outputs for analytical tools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat field calibration procedure prevents false alarms during commissioning?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEngineers must zero the probe gap voltage at top dead center with cold mechanical alignment settings recorded.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich running speed range supports 1X and 2X vector measurements?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eVector parameters remain valid across machine operating speeds from 60 cpm to 2130 cpm.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45013970256054,"sku":"140734-08","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/3500-72-01-00_e2939ce0-50c5-454f-9f37-e2262faa5fe0.jpg?v=1785909215","url":"https:\/\/www.plcsparehub.com\/products\/bently-nevada-3500-72m-140734-08-recip-rod-position-monitor-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}