{"product_id":"bently-nevada-330105-02-12-90-02-05-3300-xl-8mm-reverse-mount-proximity-probe","title":"Bently Nevada 330105-02-12-90-02-05 3300 XL 8mm Reverse Mount Proximity Probe","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Bently Nevada 330105-02-12-90-02-05 represents the pinnacle of eddy current sensing technology, specifically designed for the 3300 XL 8mm Proximity Transducer System. This reverse mount probe acts as the critical sensory interface for your Turbine Supervisory Instrumentation (TSI), capturing sub-micron variations in shaft displacement and vibration without physical contact.\u003c\/p\u003e\n\u003cp\u003eEngineered for the rigorous environments of steam turbines, centrifugal compressors, and high-speed motors, this probe translates physical gap changes into a precise proportional voltage. This data allows maintenance teams to identify early-stage bearing wear, rotor instability, or misalignment before catastrophic failure occurs. The reverse mount configuration facilitates specialized installation through machine casings where external mounting is impractical, providing a robust solution for complex mechanical geometries.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eAs a specialist in Bently Nevada systems, I have decoded the specific configuration for the 330105-02-12-90-02-05 model to ensure it matches your engineering requirements:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUnthreaded Length Option (-02)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis specifies a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2.0-inch unthreaded length\u003c\/strong\u003e, providing the necessary smooth shank for specific mounting brackets or through-casing clearances.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Case Length Option (-12)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1.2-inch total case length\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures a compact profile, ideal for internal mounting where the envelope between the machine shell and the shaft is highly restricted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Length Option (-90)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis indicates a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e9.0-meter (approx. 29.5 feet) total length\u003c\/strong\u003e. Unlike shorter probes that require an extension cable, this 9m version is designed to connect directly from the probe location to the Proximitor sensor, minimizing connection points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector and Cable Option (-02)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMiniature ClickLoc™ coaxial connector\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand standard unarmored cable. The ClickLoc system provides a secure, vibration-resistant connection that \"clicks\" to confirm a positive lock.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAgency Approval Option (-05)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIncludes\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMultiple Approvals (CSA, ATEX, IECEx)\u003c\/strong\u003e, certifying the probe for use in North American and International hazardous areas, including Zone 0, 1, and 2 environments.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\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\u003e330105-02-12-90-02-05\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\u003e8.0 mm (0.31 in)\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\u003eIncremental Scale Factor (ISF)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7.87 V\/mm (200 mV\/mil) typical\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-51 °C to +177 °C (-60 °F to +351 °F)\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\u003e0.06 kg (Probe Head Only)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions (Thread)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3\/8-24 UNF-2A (Standard for 8mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFully compliant with API 670 Standard\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\u003eIP68 \/ NEMA 4X (Properly installed)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Installation \u0026amp; Maintenance Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSetting the Gap Voltage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuccessful monitoring starts with the mechanical gap. For the 3300 XL 8mm system, engineers should set the probe gap to a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-10.0 VDC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebias (the midpoint of the -1.0V to -17.0V linear range). Use a digital multimeter at the Proximitor’s \"OUT\" and \"COM\" terminals to verify this voltage before finalizing the mounting torque.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCable Protection and Bend Radius\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEven with the high-durability fluoropolymer-insulated cable, you must maintain a minimum bend radius of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e25.4 mm (1.0 in)\u003c\/strong\u003e. Avoid routing cables in the same conduit as high-voltage AC lines to prevent electromagnetic interference from distorting your vibration data.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Maintenance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClickLoc™ connectors are sensitive to moisture and oil. I strongly recommend using connector protectors or oil-resistant heat-shrink tubing in oil-mist environments to prevent signal attenuation or \"grounding out\" of the high-frequency signal.\u003c\/p\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe 330105 series excels where generic sensors fail. Its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePolyphenylene Sulfide (PPS)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etip is chemically bonded to the probe body, preventing tip detachment in high-pressure or high-flow environments. This probe offers complete interchangeability; you can swap the probe or Proximitor from any 3300 XL series without tedious bench recalibration. This \"plug-and-play\" capability reduces Mean Time To Repair (MTTR) and ensures your critical assets remain under continuous protection.\u003c\/p\u003e\n\u003ch3\u003eDelivery and Logistics\u003c\/h3\u003e\n\u003cp\u003eWe prioritize speed and safety to minimize your facility's downtime.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3-5 business days after payment confirmation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Partners:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWorldwide express shipping via\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDHL, FEDEX, or UPS\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafety:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAll probes ship in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAnti-Static (ESD) protective packaging\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithin reinforced industrial boxes to ensure they arrive in factory-calibrated condition.\u003c\/p\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: How do I verify if the 330105 probe is faulty using a Multimeter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1: Perform a resistance check between the center conductor and the outer shield of the ClickLoc connector. A healthy 9.0m probe should show a resistance between\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e7.0 to 11.0 ohms\u003c\/strong\u003e. An infinite (OL) reading indicates an open circuit, while very low resistance suggests a short.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: What is the benefit of the \"Reverse Mount\" design?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2: Unlike standard probes that thread in from the outside, reverse mount probes are designed for installation from the\u003cspan\u003e \u003c\/span\u003e\u003cem\u003einside\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eof a bearing housing or bracket. This is essential for machines where external access is blocked by structural components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Can I use this probe with an older 3300 (non-XL) Proximitor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3: Yes. The 3300 XL 8mm probe is backward compatible with non-XL 3300 5mm and 8mm systems, allowing for a staged upgrade of your instrumentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: Does the -90 total length include the probe cable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA4: Yes. The -90 suffix indicates the entire length from the probe tip to the connector is 9.0 meters. This configuration is specifically chosen to eliminate the need for an intermediate extension cable.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45518914879661,"sku":"330105-02-12-90-02-05","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-330105-02-12-90-02-05-probe-gu2hutimirj.jpg?v=1766981549","url":"https:\/\/www.maxwellplc.com\/products\/bently-nevada-330105-02-12-90-02-05-3300-xl-8mm-reverse-mount-proximity-probe","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}