{"product_id":"bently-nevada-21000-28-05-00-75-01-02-aluminum-proximity-probe-housing-assembly","title":"Bently Nevada 21000-28-05-00-75-01-02 Aluminum Proximity Probe Housing Assembly","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Bently Nevada 21000-28-05-00-75-01-02 is a high-integrity Proximity Probe Housing designed to protect critical vibration sensors in the most demanding industrial environments. This aluminum assembly provides a ruggedized enclosure for 3300 XL 8mm proximity probes, facilitating external mounting and easy gapping without requiring machine disassembly. It serves as a vital component in Turbine Supervisory Instrumentation (TSI), ensuring that radial vibration and axial position data remain uncompromised by external mechanical stress or environmental contaminants. By utilizing this housing, engineering teams achieve superior protection for sensors on steam turbines, compressors, and large pumps, maintaining the stability of signals fed into the Bently Nevada 3500 monitoring system and integrated DCS platforms.\u003c\/p\u003e\n\u003ch2\u003eHousing Configuration Matrix\u003c\/h2\u003e\n\u003ch3\u003eSuffix Breakdown and Physical Geometry\u003c\/h3\u003e\n\u003cp\u003eThe alphanumeric code 21000-28-05-00-75-01-02 dictates the mechanical dimensions and approval ratings for this transducer assembly:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUnthreaded Length (28):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2.8-inch unthreaded section, allowing the housing to pass through machine insulation or thick outer casings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Case Length (05):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.5-inch threaded section, used for securing the housing into the machine's bearing cap or bracket.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandoff Distance (00):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo standoff required, facilitating a direct flush-mount profile for space-constrained installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProbe Thread (75):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3\/4-14 NPT thread configuration, standard for heavy-duty industrial conduit and sensor interfaces.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFittings Option (01):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes one 3\/4-14 NPT plug and specialized washers for sealing the unit against oil and moisture ingress.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAgency Approval (02):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMultiple Approvals including ATEX, IECEx, and North American hazardous area certifications, ensuring compliance in Zone 0 and Division 1 locations.\u003c\/p\u003e\n\u003ch2\u003ePerformance and Physical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\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\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada (Baker Hughes)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eHS Code\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e90319000\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\u003e1.15 kg (Approx. 2.54 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Dimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e22.0 x 15.0 x 12.0 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eA360 Aluminum (Corrosion Resistant)\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 \/ NEMA 4X equivalent\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 +350°F)\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\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eField Commissioning Protocol\u003c\/h2\u003e\n\u003cp\u003eSuccessful installation requires the precise alignment of the internal proximity probe before sealing the housing. Technicians must set the static gap voltage—typically to -10.0 VDC—by adjusting the probe's position within the housing sleeve using a digital voltmeter (DVM). Maintain a minimum cable bend radius of 25.4 mm for the internal coaxial cable to prevent signal attenuation. Ensure the NPT threads are treated with an appropriate anti-seize compound or Teflon tape to prevent galling while maintaining the explosion-proof integrity of the assembly. For hazardous area deployments, verify the (02) approval plate matches the local zone classification.\u003c\/p\u003e\n\u003ch2\u003eStructural Integrity and System Integration\u003c\/h2\u003e\n\u003cp\u003eThis housing excels in mitigating the effects of \"oil soak\" and physical impacts that often plague unprotected sensors. The aluminum construction provides excellent thermal dissipation and EMI shielding, protecting the micro-volt signals from industrial noise interference. It integrates seamlessly with the Bently Nevada 3500\/42M monitor and Honeywell Experion PKS systems, providing the mechanical stability required for System 1 diagnostic software to generate accurate orbit and time-base plots. Its ruggedized design ensures that even in high-vibration or corrosive petrochemical environments, the transducer remains \"OK,\" preventing false trips and ensuring reliable machinery protection.\u003c\/p\u003e\n\u003ch2\u003eOrdering info\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eBently Nevada 21000 series Aluminum Housing body\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal probe mounting sleeve and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e3\/4-14 NPT sealing plug and O-rings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExplosion-proof certification nameplate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndividualized factory inspection documentation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eLogistics and Protective Fulfillment\u003c\/h2\u003e\n\u003cp\u003eDelivery time: 2-7 days when payment finish. All orders ship globally via DHL, FEDEX, or UPS. We implement a multi-stage quality control process, including the use of anti-static industrial packaging and vacuum-sealed moisture barriers. Every housing assembly is secured with high-density shock-absorbent dunnage, ensuring the precision-machined threads and internal surfaces arrive in factory-sealed condition, ready for critical path installation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Support FAQ\u003c\/h2\u003e\n\u003cp\u003eQ1: Can I install this housing while the machine is running?\u003c\/p\u003e\n\u003cp\u003eA1: Yes, one of the primary advantages of the 21000 series is that it allows for probe replacement or adjustment from the outside of the machine, provided the probe sleeve design allows for the gapping process while the shaft is in motion.\u003c\/p\u003e\n\u003cp\u003eQ2: Why choose Aluminum over Stainless Steel?\u003c\/p\u003e\n\u003cp\u003eA2: Aluminum offers a lighter weight and superior heat dissipation. While stainless steel is better for highly acidic environments, the A360 aluminum used here is specifically treated for excellent corrosion resistance in standard oil and gas applications.\u003c\/p\u003e\n\u003cp\u003eQ3: Does this housing include the proximity probe?\u003c\/p\u003e\n\u003cp\u003eA3: No, the 21000-28-05-00-75-01-02 is the housing assembly. The 3300 XL proximity probe and extension cable must be ordered separately to match your specific system length (5m or 9m).\u003c\/p\u003e\n\u003cp\u003eQ4: How do I ensure a leak-proof seal with the NPT threads?\u003c\/p\u003e\n\u003cp\u003eA4: Use a high-quality thread sealant approved for the operating temperature and chemical environment. Ensure the fittings are torqued to the manufacturer’s specifications to maintain the IP66 environmental rating.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45518893318317,"sku":"21000-28-05-00-75-01-02","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-21000-28-05-00-75-01-02-analog-i-o-monitoring-module-bgsehzmoszr.jpg?v=1766981219","url":"https:\/\/www.maxwellplc.com\/products\/bently-nevada-21000-28-05-00-75-01-02-aluminum-proximity-probe-housing-assembly","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}