{"product_id":"21000-16-05-00-105-03-02-bently-nevada-proximity-probe-housing","title":"21000-16-05-00-105-03-02 Bently Nevada Proximity Probe Housing","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #d9534f;\"\u003e\u003cstrong\u003eBently Nevada 21000-16-05-00-105-03-02\u003c\/strong\u003e\u003c\/span\u003e proximity probe housing assembly provides external explosion-proof protection for eddy current transducer systems. Engineered to meet API 670 standards, this heavy-duty enclosure allows operators to service and replace proximity probes externally without dismantling machine casing covers. The assembly combines a rugged cast aluminum dome housing with a 304 stainless steel probe sleeve to isolate sensitive electronics from harsh industrial environments.\u003c\/p\u003e\n\u003cp\u003eThis specific configuration integrates a 3300 XL 8 mm reverse-mount proximity probe with a 0.5-meter cable. Designed for precise shaft vibration and axial position measurement on rotating machinery, the housing simplifies gap adjustment while maintaining NEMA 4 \/ Type 4 weather-tight integrity. The unit features dual conduit ports, internal O-ring seals, and precision mounting threads for reliable field operation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPI 670 Compliant Design:\u003c\/strong\u003e Fully complies with standard requirements for externally mounted proximity probe housings on critical rotating equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Probe Adjustability:\u003c\/strong\u003e Permits online gap calibration and probe inspection without requiring machinery shutdown or casing removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Material Construction:\u003c\/strong\u003e Combines lightweight corrosion-resistant aluminum housing body with a durable 304 stainless steel protection sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExplosion-Proof Certification:\u003c\/strong\u003e CSA certified for hazardous Class I, Div 1\/2 environments to protect critical plant infrastructure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Fitting Kit:\u003c\/strong\u003e Includes NPT plugs, reducers, and multi-grommet cable seals for sealed field conduit termination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Temperature Resistance:\u003c\/strong\u003e Maintains environmental sealing across severe ambient operating conditions down to -50 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eConfiguration Breakdown \u0026amp; Model Suffix Tree\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUnderstanding the exact part number breakdown for the \u003cspan style=\"color: #d9534f;\"\u003e\u003cstrong\u003eBently Nevada 21000-16-05-00-105-03-02\u003c\/strong\u003e\u003c\/span\u003e ensures exact site alignment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Model: 21000\u003c\/strong\u003e — Proximity Probe Housing Assembly (Aluminum Body with 304 Stainless Steel Sleeve)\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Option (AA): -16\u003c\/strong\u003e — 3300 XL 8 mm Reverse Mount Proximity Probe with Connector\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length (BB): -05\u003c\/strong\u003e — 0.5 Meter (20 Inches) Probe Cable\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandoff Adapter (CC): -00\u003c\/strong\u003e — No Standoff Adapter Installed\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePenetration Length (DDD): -105\u003c\/strong\u003e — Probe Penetration Length (D Option = 10.5 Inches)\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFittings Option (EE): -03\u003c\/strong\u003e — One 3\/4-14 NPT Plug, One 3\/4 to 1\/2 NPT Reducer, One Cable Seal Grip with Grommets\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Thread (FF): -02\u003c\/strong\u003e — 3\/4-14 NPT External Mounting Thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll functional parameters for the \u003cspan style=\"color: #d9534f;\"\u003e\u003cstrong\u003eBently Nevada 21000-16-05-00-105-03-02\u003c\/strong\u003e\u003c\/span\u003e appear below, organized by mechanical and environmental categories.\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\" cellspacing=\"0\" cellpadding=\"6\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"text-align: left;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003e\u003cstrong\u003eCore Identity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrand \u0026amp; Manufacturer\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBently Nevada\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel \u0026amp; Config\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color: #d9534f;\"\u003e\u003cstrong\u003e21000-16-05-00-105-03-02\u003c\/strong\u003e\u003c\/span\u003e (21000 Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cstrong\u003eTransducer Integration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInstalled Probe Model\u003c\/td\u003e\n\u003ctd\u003e3300 XL 8 mm reverse mount proximity probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Cable Length\u003c\/td\u003e\n\u003ctd\u003e0.5 meter (20 inches) miniature coaxial cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePenetration Depth\u003c\/td\u003e\n\u003ctd\u003e10.5 inches (266.7 mm) sleeve penetration length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cstrong\u003eMechanical Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHousing \u0026amp; Sleeve Material\u003c\/td\u003e\n\u003ctd\u003eCast aluminum dome housing with 304 stainless steel sleeve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Process Thread\u003c\/td\u003e\n\u003ctd\u003e3\/4-14 NPT male thread connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly Net Weight\u003c\/td\u003e\n\u003ctd\u003eApproximately 1.1 kg (2.4 lbs) typical without fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cstrong\u003eCompliance \u0026amp; Ratings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHazardous Area Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Class I, Div 1 \u0026amp; 2, Groups C \u0026amp; D; Class II, Div 1 \u0026amp; 2, Groups E, F, G; Class III\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Protection\u003c\/td\u003e\n\u003ctd\u003eCSA Type 4 \/ NEMA 4 rating; RoHS compliant (2011\/65\/EU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Limits\u003c\/td\u003e\n\u003ctd\u003eT5 @ Ta = -50 °C to +40 °C; T4 @ Ta = -50 °C to +80 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTarget Equipment and Application Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteam and gas turbine main bearing shaft vibration monitoring systems.\u003c\/li\u003e\n\u003cli\u003eMultistage centrifugal compressor thrust position and radial displacement sensing.\u003c\/li\u003e\n\u003cli\u003eHeavy industrial boiler feed pump shaft measurement skids.\u003c\/li\u003e\n\u003cli\u003eGearbox high-speed shaft proximity monitoring in harsh refining environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDiagnostic Capabilities and Resonance Management\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #d9534f;\"\u003e\u003cstrong\u003eBently Nevada 21000-16-05-00-105-03-02\u003c\/strong\u003e\u003c\/span\u003e supports real-time machine health monitoring through high-frequency eddy current measurement. Dynamic gap tracking detects shaft unbalance, misalignment, bearing wear, and axial position drift before physical contact occurs.\u003c\/p\u003e\n\u003cp\u003eWhen selecting probe sleeve penetration depths over 12 inches (300 mm), mechanical resonance can affect signal accuracy. Installing an internal sleeve support near the tip prevents flow-induced or machine-induced vibration resonance, ensuring clean vibration signal transmission back to the monitor.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight \u0026amp; Field Experience\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIn our field experience retrofitting turbomachinery, the \u003cspan style=\"color: #d9534f;\"\u003e\u003cstrong\u003e21000-16-05-00-105-03-02\u003c\/strong\u003e\u003c\/span\u003e offers superior protection against oil mist and moisture ingress. However, technicians must verify internal case clearances during installation. For sleeve penetration lengths under 2.0 inches, counter-boring the machine casing is often necessary to eliminate side-view or rear-view metallic interference on the eddy current field.\u003c\/p\u003e\n\u003cp\u003eAlways inspect internal thread seal O-rings before tightening the dome cover. Applying a light coat of fluorosilicone grease on the housing threads prevents thread galling on aluminum bodies, making future probe gap adjustments fast and hassle-free.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance, Shipping, and Warranty Terms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 x New factory-sealed \u003cspan style=\"color: #d9534f;\"\u003e\u003cstrong\u003eBently Nevada 21000-16-05-00-105-03-02\u003c\/strong\u003e\u003c\/span\u003e Proximity Probe Housing Assembly with complete -03 fitting kit and test documentation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Coverage:\u003c\/strong\u003e Backed by a full 12-month replacement warranty starting from the purchase invoice date.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpress Logistics:\u003c\/strong\u003e Dispatches within 24-48 hours via premium express couriers including FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: What is the purpose of the 0.5 m cable flag label option on long penetration sleeves?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: When sleeve penetration leaves only a small section of cable visible, part numbers and serial numbers are printed on an exposed flag label for easy identification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: How much physical adjustment range is available during probe gap setting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: Option D provides an adjustment range of ±0.5 inches (±13 mm) to set the exact probe gap without changing sleeves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: What cable outer diameter sizes fit the included -03 grommet seal kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: The included cable seal grip supplies grommets fitting cable diameters from 1\/8 to 3\/16 inch, 1\/4 to 5\/16 inch, and 5\/16 to 3\/8 inch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: Why is a sleeve support required for long penetration options?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: Penetration depths exceeding 12 inches (300 mm) require support near the tip to prevent cantilever resonance caused by machine vibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: Can this housing assembly be used in hazardous intrinsically safe installations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: Yes, when connected with certified barriers per control drawing 140979, the assembly meets CSA non-incendive and explosion-proof requirements for Class I, Div 1 and Div 2 areas.\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_007eb544-fd00-4b41-a22e-c953629fa721.png?v=1784785784\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45014025273526,"sku":"21000-16-05-00-105-03-02","price":219.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/21000-16-05-00-105-03-02_11113681-23d4-48a5-afea-92df47ecbda6.jpg?v=1785136058","url":"https:\/\/www.plcsparehub.com\/products\/21000-16-05-00-105-03-02-bently-nevada-proximity-probe-housing","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}