{"product_id":"bently-nevada-21000-28-05-00-076-04-02-proximity-probe-housing-api-670-certified","title":"Bently Nevada 21000-28-05-00-076-04-02 Proximity Probe Housing | API 670 Certified","description":"\u003ch3\u003eEngineering Overview: Rugged Proximity Housing\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003e21000-28-05-00-076-04-02\u003c\/span\u003e\u003c\/strong\u003e is a specialized \u003cstrong\u003eProximity Probe Housing Assembly\u003c\/strong\u003e from \u003cstrong\u003eBently Nevada\u003c\/strong\u003e, built to facilitate the integration of 3300 XL 8mm proximity transducers into critical rotating machinery. Designed without a standoff adapter, this unit offers a compact footprint, making it ideal for tight machine casing environments where space is at a premium. It is fully \u003cstrong\u003eAPI 670\u003c\/strong\u003e compliant and CSA certified for hazardous area deployments, providing robust protection for internal sensing electronics.\u003c\/p\u003e\n\u003ch3\u003eConfiguration Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe following table summarizes the technical specifications and suffix codes for the \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003e21000-28-05-00-076-04-02\u003c\/span\u003e\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 21000 (Proximity Probe Housing Assembly)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Option (28):\u003c\/strong\u003e 3300 XL 8mm probe (Hazardous Area)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length (05):\u003c\/strong\u003e 0.5 m (20 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandoff Adapter (00):\u003c\/strong\u003e No standoff adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Penetration (076):\u003c\/strong\u003e 7.6 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Option (04):\u003c\/strong\u003e 3\/4-14 NPT plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Thread (02):\u003c\/strong\u003e 3\/4-14 NPT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB’s Insight\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003e21000-28-05-00-076-04-02\u003c\/span\u003e\u003c\/strong\u003e is specifically optimized for short-to-medium penetration distances where thermal standoff is not required. By eliminating the standoff adapter, Bently Nevada has reduced the potential for mechanical resonance, leading to cleaner vibration signal capture. We recommend this model for end-users requiring a \"tight\" machine-to-housing fit, particularly in offshore platforms or gas processing facilities where the 3\/4-14 NPT explosion-proof seal is a requirement.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Applications, Diagnostics \u0026amp; Logistics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable Equipment:\u003c\/strong\u003e Centrifugal pumps, industrial blowers, variable speed drives, and medium-frame motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic Capability:\u003c\/strong\u003e Enables precise shaft-to-case proximity tracking. The reverse-mount configuration allows for internal machine casing installation, ensuring the probe remains protected from external environmental hazards while maintaining high-fidelity gap data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-month standard factory warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e Expedited global transit via FedEx, UPS, or DHL; 24–48 hour dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eModel Comparison \u0026amp; Technical Advice\u003c\/h3\u003e\n\u003cp\u003eBelow is a technical comparison for your selection process:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003e21000-28-05-00-076-04-02\u003c\/span\u003e\u003c\/strong\u003e (Current Selection): Designed for direct mounting without an adapter. Perfect for compact spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/www.plcsparehub.com\/products\/21000-16-10-15-256-03-02-bently-nevada-proximity-probe-housing-explosion-proof\"\u003e21000-16-10-15-256-03-02\u003c\/a\u003e\u003c\/strong\u003e: Features a longer penetration (25.6-inch) and a standoff adapter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Suggestion:\u003c\/strong\u003e If your installation requires navigating deep external machine structures, the \u003cstrong\u003e21000-16-10-15-256-03-02\u003c\/strong\u003e is the required choice. However, for direct-mount applications with clear access, the \u003cstrong\u003e\u003cspan style=\"color: #2980b9;\"\u003e21000-28-05-00-076-04-02\u003c\/span\u003e\u003c\/strong\u003e offers superior mechanical rigidity and signal stability by eliminating excess adapters.\u003c\/p\u003e\n\u003ch3\u003eExpert Frequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is there no standoff adapter option on this specific assembly?\u003c\/strong\u003e\u003cbr\u003eStandoff adapters are used to increase the distance between the probe housing and the machine case for thermal\/mechanical clearance. This model is engineered for direct-mount applications where clearance is sufficient.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the \"AA=28\" probe configuration?\u003c\/strong\u003e\u003cbr\u003eSuffix code 28 indicates a probe compatible with hazardous area approvals. This is mandatory for installations in Class I, Division 1 areas, ensuring the entire loop meets safety requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 3\/4-14 NPT plug (EE=04) compromise the housing sealing?\u003c\/strong\u003e\u003cbr\u003eNo, the plug is a factory-tested component that ensures the NPT port maintains an explosion-proof rating when not being used for conduit entry, provided it is properly tightened.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can I prevent vibration noise when mounting this housing directly to a machine?\u003c\/strong\u003e\u003cbr\u003eEnsure the mounting surface is machined flat. If the mounting surface is uneven, stress on the aluminum body can lead to micro-fissures or misalignment, impacting your gap data.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do I do if I am located outside of North America?\u003c\/strong\u003e\u003cbr\u003ePer the datasheet, CA housings are for North American end-users only. You must order the standard \u003cstrong\u003e21000\u003c\/strong\u003e version, which follows the same technical specifications but is approved for international hazardous area use.\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":45014025109686,"sku":"21000-28-05-00-076-04-02","price":281.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/21000-28-10-30-018-04-02_99b08f3b-a7eb-4f6c-afd5-0166ec464163.jpg?v=1779872336","url":"https:\/\/www.plcsparehub.com\/products\/bently-nevada-21000-28-05-00-076-04-02-proximity-probe-housing-api-670-certified","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}