{"product_id":"21000-16-05-00-203-03-02-bently-nevada-proximity-probe-housing-assemblies","title":"21000-16-05-00-203-03-02 | Bently Nevada | Proximity Probe Housing Assemblies","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e21000-16-05-00-203-03-02 (21000-16-05-00-203-03-02)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a heavy-duty Proximity Probe Housing Assembly designed by Bently Nevada to provide superior environmental protection for displacement sensors. This assembly is critical for Turbine Supervisory Instrumentation (TSI) applications in harsh industrial environments such as petrochemical refineries, natural gas processing plants, and hydro-electric facilities. By encasing the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3300 XL 8 mm\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprobe within a ruggedized aluminum and stainless steel structure, it facilitates external probe adjustment and replacement without dismantling the machine casing. This \"external access\" capability is a vital factor in reducing mean time to repair (MTTR) and minimizing expensive production downtime during sensor maintenance or calibration cycles in high-criticality rotating machinery.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe model code\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e21000-16-05-00-203-03-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003especifies the following mechanical and electrical configuration:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e16\u003c\/strong\u003e: Probe Option with connector - Includes a 3300 XL 8 mm proximity probe.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e05\u003c\/strong\u003e: Probe Cable Length - 0.5 meter (20 inches).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e00\u003c\/strong\u003e: Standoff Adapter - No standoff adapter supplied.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e203\u003c\/strong\u003e: Probe Penetration - 20.3 inches total penetration depth.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e03\u003c\/strong\u003e: Fittings Option - Includes one 3\/4-14 NPT plug, one 3\/4-14 to 1\/2-14 NPT reducer, and one cable seal grip with multiple grommet sizes for versatile cable management.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e02\u003c\/strong\u003e: Mounting Thread Option - 3\/4-14 NPT mounting threads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\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\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e21000-16-05-00-203-03-02\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMade in U.S.A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBody Material\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAluminum body with 304 Stainless Steel sleeve\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProbe Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3300 XL 8 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePenetration Depth\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e515.6 mm (20.3 inches)\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\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-51 to +177 Celsius (Probe tip)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e67.72 cm x 8.33 cm x 8.33 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.1 kg (Without fittings)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.0 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan this housing be used for radial vibration or axial thrust measurements?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the 21000 series housing is suitable for both radial and axial measurements. However, the penetration depth must be precisely calculated to ensure the probe tip reaches the target surface within its linear range while remaining protected by the sleeve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this housing handle hazardous area requirements?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe housing itself is a mechanical enclosure. While it provides physical protection, the overall explosion-proof or flame-proof rating depends on the probe and Proximitor sensor used, as well as the seal integrity of the NPT fittings and cable grips provided in the 03 option.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the aluminum body and stainless steel sleeve combination?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe aluminum body provides a lightweight, corrosion-resistant exterior for the main housing, while the 304 stainless steel sleeve ensures structural rigidity and protection for the probe lead where it penetrates the machine casing and faces potential oil or chemical exposure.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeal Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen installing the 3\/4-14 NPT mounting threads, use a high-quality thread sealant to prevent oil leakage from the machine casing. Do not rely solely on the mechanical fit of the threads for pressure containment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProbe Gapping:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBefore final assembly, verify the gap between the probe tip and the target shaft. Connect the probe to a Proximitor sensor and monitor the DC voltage. For a standard 3300 XL 8 mm probe, the gap should be set to -10.0 VDC (center of the linear range) to allow for both positive and negative displacement measurement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCable Routing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse the provided cable seal grip (Option 03) to ensure the probe lead is not pinched or subjected to excessive tension. Ensure the grommet size matches your cable diameter exactly to maintain the environmental IP rating of the housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePenetration Verification:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAlways double-check the 20.3-inch penetration depth against the machine drawings. If the probe is too short, it will not reach the target; if too long, the sleeve or probe tip may strike the rotating shaft, causing immediate mechanical damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668325233003,"sku":"21000-16-05-00-203-03-02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/21000-16-05-00-203-03-02-3wxcj01ljpp_1d479f78-7908-4881-8df9-60b57997d6fa.jpg?v=1765521289","url":"https:\/\/www.plcprotech.com\/products\/21000-16-05-00-203-03-02-bently-nevada-proximity-probe-housing-assemblies","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}