{"product_id":"bently-nevada-21000-28-10-20-039-04-02-proximity-probe-housing","title":"Bently Nevada 21000-28-10-20-039-04-02 Proximity Probe Housing","description":"\u003ch3\u003eEngineering Overview: 21000 Housing Assembly\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003e21000-28-10-20-039-04-02\u003c\/span\u003e\u003c\/strong\u003e is an industrial-grade \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003eProximity Probe Housing Assembly\u003c\/span\u003e\u003c\/strong\u003e from \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003eBently Nevada\u003c\/span\u003e\u003c\/strong\u003e. Engineered to house reverse-mount probes, this assembly provides a robust, explosion-proof interface for critical turbomachinery protection. Compliant with \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003eAPI 670 standards\u003c\/span\u003e\u003c\/strong\u003e, it ensures environmental isolation and precise mechanical alignment for vibration monitoring sensors in hazardous areas.\u003c\/p\u003e\n\u003ch3\u003eConfiguration Breakdown (21000-AA-BB-CC-DDD-EE-FF)\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; border-color: #ccc;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left;\"\u003eCode\u003c\/th\u003e\n\u003cth style=\"padding: 10px; text-align: left;\"\u003eSelection\u003c\/th\u003e\n\u003cth style=\"padding: 10px; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eAA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e28\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e3300 XL 8 mm probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eBB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e1.0 m (39 in) cable length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eCC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e20\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e2 in Standoff Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eDDD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e039\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e3.9 in Probe Penetration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eEE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e04\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003eOne 3\/4-14 NPT plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eFF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e02\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e3\/4-14 NPT Mounting Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Specifications \u0026amp; Build\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Aluminum body with 304 Stainless Steel sleeve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRatings:\u003c\/strong\u003e CSA Explosion-proof, Type 4 Enclosure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.1 kg (2.4 lb) typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Penetration (C+D):\u003c\/strong\u003e 13.5 in (34.3 cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e API 670 Standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostic Capability \u0026amp; Application\u003c\/h3\u003e\n\u003cp\u003eThis assembly is designed for external mounting on machinery cases. It facilitates \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003evibration and position measurement\u003c\/span\u003e\u003c\/strong\u003e on rotating equipment. Diagnostic capability is achieved by allowing the proximity probe to monitor rotor gap stability; errors in readings often indicate housing misalignment or improper torqueing of the threaded assembly.\u003c\/p\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eOur team identifies the \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003e21000-28-10-20-039-04-02\u003c\/span\u003e\u003c\/strong\u003e as the preferred assembly for medium-sized turbine housings. For deep-bore penetrations (DDD \u0026gt; 12 in), we strongly recommend adding sleeve supports to dampen mechanical resonances that could otherwise introduce jitter into your 4-20mA or raw vibration signals.\u003c\/p\u003e\n\u003ch3\u003eSelection Comparison\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e21000-28-10-20-039-04-02 (Current: 3.9 in penetration)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.plcsparehub.com\/products\/bently-nevada-21000-28-05-20-066-04-02-proximity-probe-housing\"\u003e21000-28-05-20-066-04-02\u003c\/a\u003e (Comparison: 6.6 in penetration)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Advice:\u003c\/strong\u003e Select your penetration length based on the specific machine case thickness. If the C+D dimension is below 2.0 inches, you may need to counter-bore the machine case to ensure the probe tip does not receive side-view interference from the hole walls.\u003c\/p\u003e\n\u003ch3\u003eLogistics \u0026amp; Quality Assurance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpedited Shipping:\u003c\/strong\u003e Secure transit via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, or \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessing Time:\u003c\/strong\u003e 24-48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-month factory defect warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eExpert Frequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the standoff adapter (Option C)?\u003c\/strong\u003e\u003cbr\u003eThe adapter provides the necessary spacing between the machine case and the housing to allow for correct thread engagement and physical clearance of the probe cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is conduit connection important in hazardous area applications?\u003c\/strong\u003e\u003cbr\u003eThe conduit ports are explosion-proof rated, preventing ignition of external gases in the event of an internal short or arc within the probe cabling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this housing be used for intrinsically safe installations?\u003c\/strong\u003e\u003cbr\u003eYes, provided that the proximity probe selected is also rated as intrinsically safe and paired with the correct zener barriers or galvanic isolators.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I handle the resonance issue for long probe penetrations?\u003c\/strong\u003e\u003cbr\u003eIf the total penetration (C + D) exceeds 300 mm (12 inches), install an external sleeve support to prevent harmonic vibrations from damaging the probe tip or the mounting interface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSelection Guide: What should I look for during assembly installation?\u003c\/strong\u003e\u003cbr\u003eEnsure the thread seal and O-rings are lubricated during assembly to prevent environmental ingress, which can lead to premature probe failure or signal noise.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/21000_CA21000_Proximity_Probe_Housing_Assembly_6e858fd0-30b5-48e6-858e-63405295fa24.png?v=1777369254\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45014029729974,"sku":"21000-28-10-20-039-04-02","price":163.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/21000-28-10-20-028-04-02_05261307-8b01-4a52-b385-29680f887352.jpg?v=1781603913","url":"https:\/\/www.plcsparehub.com\/products\/bently-nevada-21000-28-10-20-039-04-02-proximity-probe-housing","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}