{"product_id":"bently-nevada-330881-28-04-145-03-02-proxpac-xl-proximity-transducer-assembly","title":"Bently Nevada 330881-28-04-145-03-02 PROXPAC XL Proximity Transducer Assembly","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Bently Nevada 330881-28-04-145-03-02 PROXPAC XL represents a sophisticated evolution in machinery protection, combining an 8 mm eddy current probe and a Proximitor sensor into a single, robust housing. Engineered specifically for critical rotating assets—such as steam turbines, centrifugal compressors, and large pumps—this transducer provides high-precision, non-contact measurements of radial vibration and axial thrust.\u003c\/p\u003e\n\u003cp\u003eBy integrating the sensor directly into the housing cover, this assembly eliminates the traditional signal loss risks associated with extension cables. This self-contained architecture simplifies field wiring and reduces the overall footprint of the Turbine Supervisory Instrumentation (TSI) system. Its high-performance Polyphenylene Sulfide (PPS) construction ensures the unit thrives in the presence of chemical exposure and electromagnetic interference, delivering the sub-micron resolution necessary for early fault detection in high-speed machinery.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Configuration Details\u003c\/h2\u003e\n\u003cp\u003eThe 330881-28-04-145-03-02 utilizes a modular part-numbering system to match specific mechanical requirements of the machine train:\u003c\/p\u003e\n\u003ch3\u003eProbe and Seal Option (-28)\u003c\/h3\u003e\n\u003cp\u003eThis specifies the integration of a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3300 XL 8 mm probe\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith multi-approval certifications (including ATEX\/IECEx for hazardous areas) and high-pressure Viton seals to prevent process fluid leakage.\u003c\/p\u003e\n\u003ch3\u003eStandoff Length (-04)\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e40 mm standoff\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides the necessary clearance between the mounting port and the external housing, allowing for easier adjustment and tool access during commissioning.\u003c\/p\u003e\n\u003ch3\u003eProbe Penetration (-145)\u003c\/h3\u003e\n\u003cp\u003eA\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e145 mm penetration depth\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures the probe tip reaches the target shaft surface through thick machine casings or insulation layers, providing a stable measurement window.\u003c\/p\u003e\n\u003ch3\u003eFitting Option (-03)\u003c\/h3\u003e\n\u003cp\u003eThis configuration includes\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eone M20 fitting and two plugs\u003c\/strong\u003e, optimizing the housing for standard metric conduit systems while maintaining a sealed internal environment.\u003c\/p\u003e\n\u003ch3\u003eMounting Thread (-02)\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3\/4-14 NPT mounting thread\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides a standardized, high-strength mechanical connection to the machine's bearing housing or bracketry.\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\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\u003e330881-28-04-145-03-02\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEddy Current (Non-contact)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProbe Tip Diameter\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 mm\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\u003eScale Factor\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\u003eHousing Material\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGlass-reinforced Polyphenylene Sulfide (PPS)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP66 \/ Type 4X\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-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\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18 x 16 x 145 mm (Effective probe length)\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\u003eApprox. 0.65 kg (Assembly weight)\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\u003eTerminal Block (Field Wiring to Monitor)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eEngineering Installation \u0026amp; Maintenance Guide\u003c\/h2\u003e\n\u003ch3\u003eGap Voltage Calibration\u003c\/h3\u003e\n\u003cp\u003eDuring installation, engineers must set the mechanical gap between the probe tip and the shaft target. For the 3300 XL 8 mm system, the standard \"middle of the linear range\" is achieved when the DC output voltage is approximately\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-10.0 VDC\u003c\/strong\u003e. Use a calibrated digital multimeter to verify this voltage before tightening the locknuts.\u003c\/p\u003e\n\u003ch3\u003eHousing Grounding and Shielding\u003c\/h3\u003e\n\u003cp\u003eThe PPS housing contains conductive fibers to dissipate static. Ensure the field wiring shield is grounded at the monitor end only (e.g., the 3500 rack). Avoid \"daisy-chaining\" shields to prevent ground loops that can introduce noise into the vibration signal.\u003c\/p\u003e\n\u003ch3\u003eCable Management\u003c\/h3\u003e\n\u003cp\u003eMaintain a minimum bend radius of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e25.4 mm (1 inch)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor the internal wiring. Even though this unit eliminates the external extension cable, internal lead wires must be secured to prevent fatigue caused by high-frequency machine vibration.\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\u003eSelf-Contained Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe PROXPAC XL eliminates the need for separate Proximitor housings on the machine skid, reducing installation labor and hardware costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEMI Immunity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe advanced thermoplastic construction provides superior shielding against electrical noise compared to traditional aluminum housings, ensuring signal integrity in \"dirty\" electrical environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eField Adjustability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe design allows for probe depth adjustment without disassembling the machine, facilitating rapid recalibration during scheduled outages.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTotal TSI Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFully compatible with Bently Nevada 3500 and 3300 monitoring racks, ensuring seamless data flow for predictive maintenance programs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eGlobal Logistics \u0026amp; Delivery\u003c\/h2\u003e\n\u003cp\u003eWe maintain high-velocity stock of the 330881-28-04-145-03-02 to minimize your facility's downtime.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3-5 business days following payment confirmation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Partners:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eExpress delivery via\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDHL, FEDEX, or UPS\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eShipped in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAnti-Static (ESD) protective packaging\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithin a heavy-duty reinforced carton to ensure industrial-grade safety during transit.\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 the probe is functioning correctly before start-up?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1: Perform a static calibration check. Connect a -24VDC power supply and move a target material (4140 steel) toward the probe tip. Measure the output voltage; it should change linearly at 200 mV per mil of movement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Can the 330881-28-04-145-03-02 replace an older 7200 series Proximity system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2: Yes, the 3300 XL series is the functional successor to the 7200 series. However, since this is a self-contained unit, you will need to re-route your field wiring directly to this housing rather than to a remote Proximitor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: What is the benefit of the PPS housing over traditional stainless steel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3: PPS offers exceptional chemical resistance to synthetic lubes and acids that can corrode metals. Furthermore, the conductive fibers in the PPS prevent the buildup of electrostatic charges, which is a critical safety feature in hazardous zones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: Does this module require a separate extension cable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA4: No. One of the primary advantages of the PROXPAC XL is that the probe connects directly to the integrated Proximitor sensor inside the housing, eliminating the need for a 5m or 9m extension cable.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45518914945197,"sku":"330881-28-04-145-03-02","price":177.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-330881-28-04-145-03-02-proxpac-xl-proximity-transducer-lo5yzm1ocar.jpg?v=1766981551","url":"https:\/\/www.maxwellplc.com\/products\/bently-nevada-330881-28-04-145-03-02-proxpac-xl-proximity-transducer-assembly","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}