{"product_id":"bently-nevada-21000-28-05-00-028-04-02-proximity-probe-housing-assembly-industrial-automation-module","title":"Bently Nevada 21000-28-05-00-028-04-02 Proximity Probe Housing Assembly | Industrial Automation Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eWhen machine vibration threatens uptime, the Bently Nevada 21000-28-05-00-028-04-02 provides a robust, externally mounted housing for proximity probes. This Industrial Automation Module is engineered to protect the sensor in harsh environments while maintaining precise measurement. Part of the 21000 series, the 21000-28-05-00-028-04-02 is designed for permanent installation on rotating machinery such as compressors, turbines, and pumps.\u003c\/p\u003e\u003ch2\u003eKey Features \u0026amp; Construction\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum body with 304 stainless steel sleeve\u003c\/strong\u003e – durable and corrosion-resistant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCSA Type 4 enclosure\u003c\/strong\u003e – rated explosion proof for hazardous areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPI 670 compliant\u003c\/strong\u003e – meets American Petroleum Institute standards for externally mounted proximity probe housings.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIncludes dome cover, threaded ports, probe sleeve, O-rings, reverse mount probe, thread seal, and optional conduit fittings.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e21000-28-05-00-028-04-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe with Connector\u003c\/td\u003e\n\u003ctd\u003e28 – 3300 XL 8 mm probe, selectable hazardous area approvals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Cable Length\u003c\/td\u003e\n\u003ctd\u003e05 – 0.5 m (20 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandoff Adapter Length\u003c\/td\u003e\n\u003ctd\u003e00 – No standoff adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Penetration (Option D)\u003c\/td\u003e\n\u003ctd\u003e-028 – 2.8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFittings Option\u003c\/td\u003e\n\u003ctd\u003e04 – One 3\/4-14 NPT plug only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Thread Option\u003c\/td\u003e\n\u003ctd\u003e-02 – 3\/4-14 NPT (required when no standoff adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum (C)+(D) Dimension\u003c\/td\u003e\n\u003ctd\u003e13.5 in (34.3 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.1 kg (2.4 lb) typical, without fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\u003cp\u003eThe 21000-28-05-00-028-04-02 is ideal for vibration monitoring on critical rotating equipment. In a refinery, this housing protects the probe from explosive atmospheres while delivering reliable shaft displacement readings. For a power generation turbine, the 2.8-inch penetration allows precise placement near the bearing, and the 0.5-meter cable simplifies routing to the monitor. The CSA Type 4 rating ensures the assembly withstands dust, oil, and water spray, making it suitable for harsh industrial environments.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eWhen installing the 21000-28-05-00-028-04-02, ensure the mounting thread (3\/4-14 NPT) matches the machine case. For probe penetration lengths between 1.0 and 2.0 inches, counter boring the machine case may be necessary to reduce side view or rear view effects. If the combined probe penetration (C plus D) exceeds 300 mm (12 in), add sleeve support near the probe to prevent resonance. The adjustment range for option D is 13 mm (±0.5 in), allowing fine positioning. Always verify the probe tip gap according to the system manual.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRegularly inspect the housing for loose fittings or signs of corrosion. The aluminum and stainless steel construction resists wear, but check O-rings and seals during scheduled outages. Because the unit is explosion-proof, never open the housing while power is applied in a hazardous area. Following a simple inspection routine extends service life and prevents unplanned downtime—key to maximizing ROI.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify your required probe penetration (C plus D) and mounting thread. The 21000-28-05-00-028-04-02 includes a 3\/4-14 NPT plug and requires the -02 mounting thread option. Confirm that your proximity probe is compatible with the 8 mm 3300 XL series. For reliable sourcing, PLC Source PRO offers this genuine Bently Nevada module in new, factory-sealed condition with a 12-month warranty.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44439333077091,"sku":"21000-28-05-00-028-04-02","price":290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/21000-00-00-00-035-04-02_c9e85767-3dab-432a-b87c-32573c5e55ef.jpg?v=1785868827","url":"https:\/\/www.plcsourcepro.com\/ar\/products\/bently-nevada-21000-28-05-00-028-04-02-proximity-probe-housing-assembly-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}