{"product_id":"bently-nevada-3300-xl-8mm-proximity-transducer-330800-28-00-085-03-02-proxpac-proximity-transducer-english","title":"Bently Nevada 3300 XL 8mm Proximity Transducer 330800-28-00-085-03-02 PROXPAC Proximity Transducer, English","description":"\u003cp\u003eConfigured for eddy-current displacement transduction in TSI networks, the \u003cstrong\u003eBently Nevada 330800-28-00-085-03-02\u003c\/strong\u003e (\u003cstrong\u003e330800\u003c\/strong\u003e PROXPAC Proximity Transducer) provides direct physical execution of shaft gap measurement via an integrated 3300 XL 8 mm probe and Proximitor sensor.\u003c\/p\u003e\n\u003ch3\u003eSuffix Decoding\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e330800: Base model, PROXPAC Proximity Transducer Assembly (legacy series, English units)\u003c\/li\u003e\n\u003cli\u003e-28-: 3300 XL 8 mm probe with Multiple Approvals\u003c\/li\u003e\n\u003cli\u003e-00-: No standoff adapter\u003c\/li\u003e\n\u003cli\u003e-085-: Probe penetration 8.5 in\u003c\/li\u003e\n\u003cli\u003e-03-: One 3\/4-14 NPT fitting, one 3\/4-14 NPT to 1\/2-14 NPT SST reducer, two plugs\u003c\/li\u003e\n\u003cli\u003e-02: Mounting thread 3\/4-14 NPT\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003e330800-28-00-085-03-02\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e27.8 x 9.5 x 9.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Type\u003c\/td\u003e\n\u003ctd\u003e3300 XL 8 mm eddy-current probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eMolded plastic (PPS-class), AISI 304 stainless steel fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eType 4X, IP66 (hose-directed water, 100% condensing when sealed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Thread\u003c\/td\u003e\n\u003ctd\u003e3\/4-14 NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandoff Adapter\u003c\/td\u003e\n\u003ctd\u003eNone (0 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Penetration\u003c\/td\u003e\n\u003ctd\u003e8.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFittings\u003c\/td\u003e\n\u003ctd\u003e1 x 3\/4-14 NPT fitting, 1 x SST reducer (3\/4-14 to 1\/2-14 NPT), 2 plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Seal\u003c\/td\u003e\n\u003ctd\u003eViton O-ring (probe case), Neoprene O-ring (sleeve to housing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003e75 Ohm triaxial FluidLoc (integrated, no external extension)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGap Voltage Target\u003c\/td\u003e\n\u003ctd\u003e-10 VDC nominal (-9 to -11 VDC valid)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-50 to +175 deg C (probe dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eExcitation from monitor Proximitor loop (-17 to -26 VDC system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy-Current Scaling and Gap Validation\u003c\/h3\u003e\n\u003cp\u003eThe 3300 XL 8 mm probe exhibits 7.87 V\/mm (200 mV\/mil) sensitivity over a 2 mm linear range. Gap voltage validation targets -10 VDC at mid-scale to preserve rotor dynamics linearity. Cross-talk suppression is enforced by shielded FluidLoc cabling and conductive-fiber housing dissipation; probe coil impedance varies approximately 50 to 550 Ohm across the air gap.\u003c\/p\u003e\n\u003ch3\u003eOrdering info\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Bently Nevada 330800-28-00-085-03-02 PROXPAC Proximity Transducer Assembly (English units, no standoff)\u003c\/li\u003e\n\u003cli\u003eNote: Calibration sheet, manual, separate extension cable, and standalone Proximitor housing not included unless explicitly listed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Mounting Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngage 3\/4-14 NPT with minimum 5 full thread turns into machine bracket or junction adapter.\u003c\/li\u003e\n\u003cli\u003eInstall SST reducer only when transitioning to 1\/2-14 NPT conduit or cable gland.\u003c\/li\u003e\n\u003cli\u003eKeep 75 Ohm triaxial FluidLoc bend radius within BN 3300 XL limits; use AISI 304 armor in vibrating runs.\u003c\/li\u003e\n\u003cli\u003eDrain shield at monitor end only; do not bond shield to PPS housing.\u003c\/li\u003e\n\u003cli\u003eVerify -10 VDC gap bias with power off insertion sequence; do not hot-insert.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIs the 330800-28-00-085-03-02 hot-swappable on a live 3500 monitor?\u003c\/p\u003e\n\u003cp\u003eNo. Integrated Proximitor and probe must be wired with monitor loop de-energized. Live insertion induces transient loop current and can force false gap voltage into the TSI rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the electrical load presented to the monitor?\u003c\/p\u003e\n\u003cp\u003eThe assembly draws excitation from the connected Proximitor input (e.g., 3500\/42M). Probe coil impedance scales with gap; typical DC resistance spans 50 to 550 Ohm. No separate power terminal exists on the housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes omitting the standoff adapter change probe linearity?\u003c\/p\u003e\n\u003cp\u003eNo. The -00- option removes the mechanical spacer only. Electrical linear range stays 2 mm at 7.87 V\/mm. Penetration length 8.5 in sets tip position relative to machine surface, not scaling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan an external 3300 XL extension cable be spliced in?\u003c\/p\u003e\n\u003cp\u003eNo. PROXPAC integrates probe, FluidLoc cable, and Proximitor in one housing. Adding external extension breaks the calibrated 75 Ohm path and voids gap linearity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAre the internal O-rings pressure-rated?\u003c\/p\u003e\n\u003cp\u003eNo. Viton and Neoprene O-rings seal differential humidity and hose water per Type 4X\/IP66. They are not rated for internal\/external pressure containment. Probes are not pressure-tested at factory.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat gap voltage is valid during commissioning?\u003c\/p\u003e\n\u003cp\u003eAcceptable bias is -9 to -11 VDC. -10 VDC marks mid-linear range (~1 mm gap for 8 mm probe). Adjust tip via external access screw on housing cover with monitor in bias-check mode.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the -28- approval option affect electrical performance?\u003c\/p\u003e\n\u003cp\u003eNo. -28- (Multiple Approvals) and -16- (no approvals) share identical eddy-current scaling. Approval variant changes label\/certification only, not sensitivity, range, or gap target.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs 330800 functionally interchangeable with 330880?\u003c\/p\u003e\n\u003cp\u003eYes when suffix options match. 330880 is the current PROXPAC XL catalog number; 330800 is legacy English-unit equivalent. Same 3300 XL 8 mm probe and integrated Proximitor architecture.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":46025930801325,"sku":"330800-28-00-085-03-02","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/xianxian_98_d9179cd4-615d-46a4-905c-a00c72904159.jpg?v=1783667300","url":"https:\/\/www.maxwellplc.com\/ga\/products\/bently-nevada-3300-xl-8mm-proximity-transducer-330800-28-00-085-03-02-proxpac-proximity-transducer-english","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}