{"product_id":"bently-nevada-2789-156-proximity-transducer-extension-cable","title":"Bently Nevada 2789-156 Proximity Transducer Extension Cable","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for critical machinery protection loops, the \u003cstrong\u003eBently Nevada 2789-156\u003c\/strong\u003e serves as a high-precision, low-attenuation coaxial extension cable for proximity transducer systems. This cable maintains physical signal integrity between the proximity probe and the Proximitor sensor, facilitating continuous, online vibration and position monitoring in high-demand industrial environments. Engineered to withstand constant structural vibration and thermal stress, it ensures the precise transmission of high-frequency RF signals without introducing phase distortions or unexpected impedance fluctuations.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 20px;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized Coaxial Core:\u003c\/strong\u003e Manufactured with precise electrical properties to maintain standard system calibration and scale factors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Insulation:\u003c\/strong\u003e Built with a durable outer jacket that resists degradation from common industrial lubricants, moisture, and chemical exposure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Vibration Tolerance:\u003c\/strong\u003e Secure connector terminations prevent signal dropouts caused by structural resonance and machine motion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimal Signal Attenuation:\u003c\/strong\u003e Low-loss design preserves critical dynamic amplitude and phase data for diagnostic analysis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 20px;\"\u003e\n  \u003cli\u003eRadial vibration and axial position monitoring on utility steam and gas turbines.\u003c\/li\u003e\n  \u003cli\u003eCondition monitoring of large-scale centrifugal and reciprocating compressors.\u003c\/li\u003e\n  \u003cli\u003eShaft centerline tracking and vibration detection in hydroelectric generators.\u003c\/li\u003e\n  \u003cli\u003eIndustrial pump, gearbox, and fan protection loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0; text-align: left;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBently Nevada\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2789-156\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eProximity Probe Extension Cable\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCable Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCoaxial\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePhysical Cable Length\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eapprox. 4.0 meters (13.0 feet \/ 156 inches)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eConnector Configuration\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMiniature coaxial connectors (Male to Female)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCompatible Systems\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBently Nevada Proximity Transducer Systems\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eUnited States\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.5 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0; text-align: left;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eConnector Element\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eSignal Assignment \/ Function\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCenter Conductor\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eHigh-Frequency RF Carrier Signal \/ Sensor AC Output\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eOuter Shield Braiding\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCommon Return \/ Electrostatic Shielding Path\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eIn older machine protection architectures, matching cable length to system configuration is critical. Proximity systems are factory-tuned to specific total electrical lengths (typically 5.0 meters or 9.0 meters inclusive of the probe's integral lead). Substituting a 2789 series cable with different physical lengths or impedance values without recalibrating the Proximitor sensor will cause systematic scaling errors, leading to false gap and vibration readings.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eCoaxial extension cables are vulnerable to high-frequency electromagnetic noise. Running this cable parallel to major AC power lines or variable frequency drive (VFD) output cables introduces inductive coupling. For optimum performance, route extension cables through dedicated, grounded metal conduit, and maintain standard minimum bend radiuses to prevent micro-cracks in the internal shield braiding.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDuring field installation, ensure that the connection point between the probe lead and the extension cable is dry and clean. Moisture or oil ingress at this junction introduces a parallel resistance path, degrading the RF signal and showing up as a system fault on the monitoring rack. Always use silicone connector protector sleeves or self-fusing insulation tape to isolate the joint.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e De-energize all machinery and control cabinet loops before initiating installation or maintenance. Verify the proximity system channel is bypassed on the machinery protection monitor to prevent accidental emergency shutdown (ESD) trips during sensor handling.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 12px; font-weight: bold;\"\u003e1\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eInspect the male and female coaxial connectors for any dirt, oxidation, or mechanical damage prior to installation.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 12px; font-weight: bold;\"\u003e2\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect the extension cable to the proximity probe lead. Use a connector torque wrench to tighten the connection to OEM-recommended torque specifications to ensure a vibration-proof fit without over-tightening.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 12px; font-weight: bold;\"\u003e3\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eApply a silicone connector sleeve or self-fusing tape wrap over the connection to protect the interface from moisture, oil, and dust ingress.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 12px; font-weight: bold;\"\u003e4\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eRoute the cable back to the proximity sensor housing through suitable conduit, adhering strictly to the minimum bend radius constraints.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668310552939,"sku":"2789-156","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/2789-156-liotdakazl5_a998ad52-bd88-4b16-80d6-6b27a41089fd.jpg?v=1765520838","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-2789-156-proximity-transducer-extension-cable","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}