{"product_id":"bently-nevada-21000-34-05-15-032-01-02-proximity-probe-housing-assembly","title":"Bently Nevada 21000-34-05-15-032-01-02 Proximity Probe Housing Assembly","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e21000-34-05-15-032-01-02\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eis a heavy-duty, explosion-proof proximity probe housing assembly designed for the most demanding vibration monitoring environments. Engineered by Bently Nevada, this assembly protects the sensitive 3300 XL 8 mm proximity probe from mechanical damage and hazardous atmospheric conditions. It is widely utilized in oil and gas refineries, petrochemical plants, and large-scale power generation facilities where precise radial vibration or axial position sensing is required on steam turbines, compressors, and pumps. By providing a ruggedized external mounting solution, this housing allows for the external adjustment of the probe's \"Gap\" voltage while the machinery is running, significantly reducing maintenance-related downtime and enhancing overall plant safety.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e21000-34-05-15-032-01-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodel code provides a detailed roadmap of the assembly's mechanical and electrical configuration:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e34 (Probe Option):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes a 3300 XL 8 mm probe with a connector protector and multiple international hazardous area approvals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e05 (Cable Length):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecifies a 0.5 meter (20 inch) probe cable length.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e15 (Standoff Adapter):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures a 1.5 inch (38 mm) standoff adapter to position the housing away from the machine casing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e032 (Probe Penetration):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSets the total probe penetration depth at 3.2 inches into the machine train.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e01 (Fittings):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConfigured with one explosion-proof conduit fitting and one steel plug for cable routing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e02 (Mounting Thread):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes a standard 3\/4-14 NPT mounting thread to interface with the machine housing.\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\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\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\u003e21000-34-05-15-032-01-02\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 (Baker Hughes)\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\u003eU.S.A.\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 Proximity Probe\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\u003e3.2 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\u003eHazardous Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eExplosion-proof (Multiple Approvals)\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\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-35 to +177 deg C (Probe head)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Insights \u0026amp; FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan the probe penetration depth be adjusted in the field?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 032 suffix specifies the factory-set penetration; however, the Bently Nevada 21000 series allows for minor fine-tuning of the probe position via the internal sleeve to achieve the correct Gap voltage during commissioning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the advantages of the 3300 XL 8 mm probe in this assembly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 3300 XL 8 mm probe provides a standard linear range of 2.0 mm (80 mils) and offers superior resistance to moisture and chemical ingress compared to legacy probe models. The included connector protector prevents signal contamination at the cable junction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this housing assembly suitable for Division 1 or Zone 1 environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 21000-34-05-15-032-01-02 is designed for hazardous locations and features explosion-proof fittings (Option 01) and multiple approvals (Option 34) to meet stringent safety requirements in flammable atmospheres.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGap Voltage Calibration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDuring installation, use a digital multimeter to monitor the DC Gap voltage from the Proximitor Sensor. For most Bently Nevada 3300 XL systems, the target is -10.0 VDC (the midpoint of the linear range). Carefully rotate the probe within the housing until the target voltage is reached, then secure the locknuts to prevent shifting caused by machine vibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConduit and Seal Integrity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo maintain the explosion-proof rating of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e21000-34-05-15-032-01-02\u003c\/strong\u003e, ensure that all NPT threads are treated with an approved thread lubricant and tightened to the specified torque. The 01 fitting option requires proper cable glands or conduit seals to prevent the passage of gases through the wiring system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Stress and Heat Management\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn high-temperature applications (such as steam turbine exhaust ends), ensure the standoff adapter (Option 15) provides sufficient distance between the machine case and the probe housing. This helps dissipate heat and prevents the cable insulation from exceeding its maximum operating temperature.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668323299691,"sku":"21000-34-05-15-032-01-02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/21000-34-05-15-032-01-02-xruqgqvyuv0_8414e9de-be23-4f40-951e-b64fc55f5f31.jpg?v=1765521226","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-21000-34-05-15-032-01-02-proximity-probe-housing-assembly","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}