{"product_id":"330881-28-15-122-03-02-bently-nevada-proxpac-xl-proximity-transducer","title":"330881-28-15-122-03-02 Bently Nevada PROXPAC XL Proximity Transducer","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 330881-28-15-122-03-02 PROXPAC XL\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a robust, integrated proximity transducer assembly designed for critical machinery protection. This sophisticated system combines a 3300 XL 8mm probe, an extension cable, and a Proximitor sensor into a single, environmentally hardened housing. Engineered specifically for high-value rotating assets such as steam turbines, centrifugal compressors, and large pumps, the PROXPAC XL eliminates the need for external Proximitor housings and vulnerable exposed coaxial cable runs.\u003c\/p\u003e\n\u003cp\u003eBy utilizing non-contact eddy current technology, this transducer captures shaft radial vibration and axial position with microscopic precision. The integrated design streamlines installation on the machine deck while providing Type 4X and IP66 protection against moisture, oil, and corrosive atmospheres. This unit serves as a primary sensing element for Turbine Supervisory Instrumentation (TSI), delivering high-fidelity data that empowers maintenance teams to identify mechanical issues before they lead to catastrophic equipment failure.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Configuration\u003c\/h2\u003e\n\u003cp\u003eThe model\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e330881-28-15-122-03-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eemploys a specific modular code to define its mechanical dimensions and electrical system length:\u003c\/p\u003e\n\u003ch3\u003eProbe Option (-28)\u003c\/h3\u003e\n\u003cp\u003eThis specifies a probe with a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2.8-inch\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(approx. 71mm) case length. This dimension determines the penetration depth of the 8mm probe tip into the machine casing to reach the target shaft.\u003c\/p\u003e\n\u003ch3\u003eStandoff Adapter Option (-15)\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-15\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesignation indicates a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1.5-inch\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003estandoff adapter. This component provides the necessary mechanical spacing and clearance between the integrated housing and the machine's external surface.\u003c\/p\u003e\n\u003ch3\u003eTotal Length Option (-122)\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-122\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esignifies a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e9.0-meter (approx. 29.5 feet)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etotal system length. The internal probe and cable are electrically matched to this 9.0m calibration to ensure the industry-standard 200 mV\/mil scale factor remains accurate without field recalibration.\u003c\/p\u003e\n\u003ch3\u003eMounting Thread \u0026amp; Agency Option (-03-02)\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-03\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003especifies the mounting thread and fitting type (one M20 fitting and two plugs). The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoption confirms\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMulti-Agency Approvals\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(ATEX, IECEx, and CSA), authorizing use in Class I, Division 2 or Zone 2 hazardous industrial areas.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\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\u003eTransducer Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntegrated 3300 XL 8mm System\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eLinear Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.0 mm (80 mils)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Sensitivity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7.87 V\/mm (200 mV\/mil)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eType 4X \/ IP66 (Weatherproof)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting Thread\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3\/4-14 NPT (Base)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStandard Target Material\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAISI 4140 Steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-35 °C to +85 °C (-31 °F to +185 °F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Length\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e9.0 Meters (Matched Internal)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation \u0026amp; Engineering Guide\u003c\/h2\u003e\n\u003cp\u003eProper installation ensures the signal integrity required for mission-critical monitoring:\u003c\/p\u003e\n\u003ch3\u003eGap Voltage Calibration\u003c\/h3\u003e\n\u003cp\u003eUsers must set the static gap by measuring the DC voltage between the \"OUT\" and \"COM\" terminals inside the housing. Rotate the PROXPAC assembly within its mounting port until the voltage reads\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-10.0 VDC\u003c\/strong\u003e. This voltage indicates the probe is positioned at the center of its 80-mil linear range. Secure the locknuts once this value is stable.\u003c\/p\u003e\n\u003ch3\u003eAvoiding Cross-Talk\u003c\/h3\u003e\n\u003cp\u003eWhen installing multiple transducers in close proximity, maintain a minimum of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e40mm (1.6\")\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseparation for axial probes and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e38mm (1.5\")\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor radial probes. Proximity closer than these limits allows the magnetic fields of the sensors to overlap, creating \"cross-talk\" interference exceeding 50mV.\u003c\/p\u003e\n\u003ch3\u003eShaft Diameter Constraints\u003c\/h3\u003e\n\u003cp\u003eOptimal measurement requires a shaft diameter of at least\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e76.2mm (3.0\")\u003c\/strong\u003e. While the system functions on shafts as small as 50mm (2.0\"), smaller diameters may cause variations in the scale factor (sensitivity), requiring specialized calibration for radial vibration accuracy.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Hardening:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHousing the Proximitor sensor directly at the probe exit eliminates the \"weak link\" of coaxial extension cables, protecting sensitive electronics from mechanical damage and EMI.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe stainless steel and aluminum construction, combined with Viton O-ring seals, withstands harsh hydrocarbon processing environments and coastal salt spray.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTSI Seamless Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe analog output integrates natively with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 3500 series\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emonitoring rack, allowing immediate access to Orbit plots and spectrum analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAPI 670 Compliance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe system adheres to the rigorous requirements of the American Petroleum Institute for machinery protection, ensuring reliability and global industry acceptance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: How do I verify if the O-rings are seated correctly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1: Because probes are not pressure-tested before shipment, you must visually inspect the Viton O-ring at the probe tip and the Neoprene O-ring at the housing interface during installation. Proper seating prevents oil from leaking out of the bearing housing into the transducer enclosure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Can I use this unit with a different length extension cable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2: No. This unit is an \"all-in-one\" 9.0m system. The internal wiring is factory-calibrated for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e9.0 meters\u003c\/strong\u003e. Adding or removing cable length will alter the system's impedance and destroy the accuracy of the 200 mV\/mil scale factor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Does the 330881 support Ethernet communication?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3: No. This is a common clerical error in logistics databases. The PROXPAC XL provides raw analog voltage signals. Digital networking (Ethernet\/Modbus) is handled solely at the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500 Rack\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor communications gateway level.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: What is the benefit of the -03 M20 fitting option?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA4: The -03 option provides a metric M20 conduit fitting, which is standard for many European and Asian installations, ensuring the housing remains sealed against moisture while complying with local electrical conduit standards.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":53296614310198,"sku":"330881-28-15-122-03-02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/2094\/8534\/files\/bently-nevada-330881-28-15-122-03-02-proxpac-xl-proximity-transducer-everhx4dvfi.jpg?v=1764045118","url":"https:\/\/www.motrolixtech.com\/products\/330881-28-15-122-03-02-bently-nevada-proxpac-xl-proximity-transducer","provider":"Motrolix","version":"1.0","type":"link"}