{"product_id":"bently-nevada-21000-28-05-00-067-04-02-21000-series-proximity-probe-housing-assembly","title":"Bently Nevada 21000-28-05-00-067-04-02 21000 Series Proximity Probe Housing Assembly","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eOptimized for hazardous and demanding industrial environments, the \u003cstrong\u003eBently Nevada 21000-28-05-00-067-04-02\u003c\/strong\u003e is a heavy-duty proximity probe housing designed to protect critical vibration monitoring sensors. As part of the \u003cstrong\u003e21000 Series\u003c\/strong\u003e, this rugged assembly simplifies transducer installation and adjustment, allowing external access to proximity probes on rotating machinery. The integration of a \u003cstrong\u003e3300 XL 8 mm probe\u003c\/strong\u003e with multi-approval certifications ensures highly reliable eddy current displacement measurements in petrochemical, power generation, and gas processing facilities.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Material Composition:\u003c\/strong\u003e Constructed with a high-durability aluminum body and a 304 stainless steel sleeve to withstand aggressive atmospheric conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-installed Sensor Option:\u003c\/strong\u003e Configured with a 3300 XL 8 mm probe featuring multiple hazardous area agency approvals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimplified Field Adjustments:\u003c\/strong\u003e Enables easy setting of the sensor gap from outside the machine casing without requiring teardowns.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Seal Threading:\u003c\/strong\u003e Features a rugged 3\/4-14 NPT mounting thread and fitting configuration to maintain case seal integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eSteam, gas, and hydro turbine shaft radial vibration and axial position monitoring.\u003c\/li\u003e\n  \u003cli\u003eLarge scale centrifugal and reciprocating compressor protection systems.\u003c\/li\u003e\n  \u003cli\u003eHeavy utility pumps, gearboxes, and industrial fan mechanical health monitoring.\u003c\/li\u003e\n  \u003cli\u003eEnvironments requiring explosion-proof or flameproof equipment enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eSpecification Parameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eValue \/ Configuration Details\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eBently Nevada\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eModel Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e21000 Series Proximity Probe Housing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eFull Part Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e21000-28-05-00-067-04-02\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eProbe Option (28)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e3300 XL 8 mm probe with coaxial connector, multiple global approvals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eProbe Cable Length (05)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e0.5 meter (20 inches)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eStandoff Adapter Option (00)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eNo standoff adapter installed\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eProbe Penetration Depth (067)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e6.7 inches\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eFittings Option (04)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eOne 3\/4-14 NPT plug only\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eMounting Thread Option (02)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e3\/4-14 NPT\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eHousing Material\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eAnodized aluminum main body with 304 stainless steel sleeve\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e2.0 kg (4.4 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eIn modern system standardizations, this specific model (option code 28 for the 3300 XL 8 mm probe with multiple approvals) can be replaced or retrofitted with version \u003cstrong\u003e21000-16-05-00-067-04-02\u003c\/strong\u003e depending on facility-specific regulatory requirements. Always check whether your local installation codes mandate regional approvals (ATEX\/IECEx, CSA, or NEPSI) or if the multi-approval package on the option 28 configuration is required to maintain the area classification of your machinery skid.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eSince this assembly uses the \u003cstrong\u003e00\u003c\/strong\u003e standoff adapter option, the physical probe penetration depth is locked at \u003cstrong\u003e6.7 inches\u003c\/strong\u003e. Engineers must verify the structural distance between the outer mounting surface and the target shaft surface prior to installation. Failing to account for this fixed length can cause the probe tip to physically strike the rotating shaft during machine start-up, resulting in catastrophic failure of the transducer tip and potential damage to the shaft journal.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDuring initial gap calibration, avoid twisting the 0.5-meter internal probe cable when threading the housing body. It is highly recommended to uncouple the coaxial connector from the extension cable before rotating the housing assembly. Use a high-quality thread sealant on the 3\/4-14 NPT mounting threads to prevent oil mist migration and maintain IP66\/NEMA 4X environmental ratings.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e De-energize and lock out the machinery before mounting or adjusting the proximity probe housing. Ensure the casing pressure has bled off completely to avoid high-pressure blowouts of machine oil or process gas through the mounting port.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 2rem; height: 2rem; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eInspect the mounting port on the machine case and ensure the 3\/4-14 NPT threads are clean, dry, and free of burrs or old thread compound.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 2rem; height: 2rem; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eThread the housing sleeve carefully into the casing. Rotate the assembly manually to prevent cross-threading, ensuring the 6.7-inch sleeve penetrates straight to the target zone.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 2rem; height: 2rem; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eConnect the 3300 XL probe to an appropriate proximitor calibrator. Slowly adjust the probe depth inside the sleeve until the target DC voltage (typically -10 VDC for a nominal 80 mil gap) is achieved, then secure the probe locknut.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 2rem; height: 2rem; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eRun the 0.5-meter cable through the conduit outlet, complete the connection to the field junction box, and seal the unused 3\/4-14 NPT port with the supplied plug.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668310290795,"sku":"21000-28-05-00-067-04-02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/21000-28-05-00-067-04-02-u14wsgd5dts_076ecd42-5041-4b11-8e81-c6363d5dcd41.jpg?v=1765520826","url":"https:\/\/www.plcprotech.com\/tr\/products\/bently-nevada-21000-28-05-00-067-04-02-21000-series-proximity-probe-housing-assembly","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}