{"product_id":"bently-nevada-330851-02-000-060-10-00-cn-3300-xl-25-mm-proximity-probe","title":"Bently Nevada 330851-02-000-060-10-00-CN 3300 XL 25 mm Proximity Probe","description":"\u003cp\u003eThe \u003cstrong\u003eBently Nevada 330851-02-000-060-10-00-CN\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e330851\u003c\/strong\u003e Proximity Probe, operates as a dedicated hardware component for non-contact shaft vibration and axial position measurement within 3500 Machinery Protection System networks. It utilizes an eddy-current tip design to translate mechanical clearance variations relative to a conductive target into proportional high-frequency voltage fluctuations sent to matching Proximitor sensors.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe ordering options for the 330851-02-000-060-10-00-CN probe define the following hardware specifications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e330851\u003c\/strong\u003e: Base Model Designation for 3300 XL 25 mm Proximity Probe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e02\u003c\/strong\u003e: Probe Case Type Option – M30x2 thread.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e000\u003c\/strong\u003e: Unthreaded Length Option – 0 inches (fully threaded case).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e060\u003c\/strong\u003e: Overall Case Length Option – 60 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10\u003c\/strong\u003e: Total Length Option – 1.0 meter (3.3 feet).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e00\u003c\/strong\u003e: Armor Option – No armor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCN\u003c\/strong\u003e: Agency Approval Option – Country-specific approvals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e330851-02-000-060-10-00-CN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.23 kg (Shipping Weight: 1.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eM30x2 thread, 60 mm case length, 1.0 m total cable length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-51 deg C to +177 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive physical media (0 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Tip Diameter\u003c\/td\u003e\n\u003ctd\u003e25 mm (0.98 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Target\u003c\/td\u003e\n\u003ctd\u003e3300 XL 25 mm Proximitor Sensor System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003eCoaxial, miniature ClickLock connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy-Current Probe Scaling and Rotor Dynamics Tracking\u003c\/h3\u003e\n\u003cp\u003eThe 330851 proximity probe relies on precise eddy-current probe scaling to convert magnetic field interactions with a rotating target into calibrated linear voltage outputs. When paired with its designated 3300 XL Proximitor sensor, the 25 mm tip diameter provides extended linear range capability suitable for large-diameter shaft applications and high-displacement thrust measurements.\u003c\/p\u003e\n\u003cp\u003eDuring field commissioning, gap voltage validation requires setting the probe static gap to establish a baseline output, typically targeting -10 VDC at mid-span clearance. Accurate gap alignment prevents signal saturation during extreme rotor dynamics transients and maintains optimal cross-talk suppression between adjacent orthogonal probe pairs mounted in close proximity within bearing housings.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1.0 m integral cable on the 330851 probe be trimmed or spliced in the field?\u003c\/p\u003e\n\u003cp\u003eA: No. Splicing or cutting the probe cable alters the system electrical inductance and capacitance. This disrupts eddy-current probe scaling, causes severe calibration drift, and invalidates gap voltage validation targets.\u003c\/p\u003e\n\u003cp\u003eQ: What is the purpose of the ClickLock coaxial connector on the probe cable?\u003c\/p\u003e\n\u003cp\u003eA: The ClickLock connector ensures a positive, vibration-resistant mechanical latch between the probe lead and the extension cable, preventing microphonic signal noise and accidental disconnects under heavy machinery vibration.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eInspect the 25 mm probe tip, M30x2 threads, and miniature coaxial connector for dirt, oil, or mechanical damage before mounting.\u003c\/li\u003e\n\u003cli\u003eThread the probe into the mounting bracket or casing, maintaining clean thread engagement without applying excessive torque to the casing hex flats.\u003c\/li\u003e\n\u003cli\u003eRoute the coaxial cable to the junction box, maintaining a minimum static bend radius of 25.4 mm (1.0 in) to prevent internal shield damage.\u003c\/li\u003e\n\u003cli\u003eSeparate the probe cable from high-voltage AC motor wires and variable frequency drive (VFD) output cables by at least 300 mm to avoid electromagnetic noise coupling.\u003c\/li\u003e\n\u003cli\u003eConnect the probe cable to the extension cable, press the ClickLock connector until seated, and secure the connection using an approved connector protector boot.\u003c\/li\u003e\n\u003cli\u003eVerify gap voltage validation across the Proximitor output terminals using a digital multimeter; confirm the reading matches the target voltage (typically -10 VDC) at static machine equilibrium.\u003c\/li\u003e\n\u003cli\u003eConnect the signal cable shield to instrument earth at the monitoring rack end only. Leave the shield floating at the probe junction box to eliminate ground loops.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":43681199718490,"sku":"330851-02-000-060-10-00-CN","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/330102-00-20-10-02-00_02c612b6-a9e0-4fb1-9afe-ac39d6fa24eb.png?v=1784518471","url":"https:\/\/www.spareoil.com\/products\/bently-nevada-330851-02-000-060-10-00-cn-3300-xl-25-mm-proximity-probe","provider":"SpareOil Automation","version":"1.0","type":"link"}