Product Overview
The Bently Nevada 21000-28-05-20-018-04-02 is a rugged proximity probe housing assembly designed for permanent vibration monitoring in industrial rotating machinery. This model combines a 3300 XL 8 mm probe with a 0.5 m (20 in) cable, a 2-inch standoff adapter, and a 1.8-inch probe penetration, all housed in a durable aluminum body with a 304 stainless steel sleeve. It is certified for hazardous area use and meets API 670 standards, ensuring reliable performance in demanding environments.
Key Specifications
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Model: 21000-28-05-20-018-04-02
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Probe: 3300 XL 8 mm with connector
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Cable Length: 0.5 m (20 in)
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Standoff Adapter: 2 in
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Probe Penetration: 1.8 in
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Fitting: One 3/4-14 NPT plug
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Mounting Thread: 3/4-14 NPT
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Material: Aluminum body, 304 stainless steel sleeve
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Weight: 1.1 kg (2.4 lb) typical without fittings
Applications
This housing assembly is ideal for monitoring shaft vibration and position in compressors, turbines, pumps, and motors. The 21000-28-05-20-018-04-02 provides accurate, reliable data for predictive maintenance and machine protection systems. Its explosion-proof design makes it suitable for oil & gas, petrochemical, and power generation facilities.
Installation and Setup
Mount the housing securely using the 3/4-14 NPT thread. Ensure the probe tip is properly positioned to achieve the correct gap voltage. Route the cable through the conduit ports, avoiding sharp bends. Verify all fittings are tight to maintain the enclosure rating.
Maintenance and Reliability
Periodically inspect the housing for corrosion or damage. Check that the probe and cable are secure. The aluminum and stainless steel construction offers excellent resistance to harsh environments. Regular maintenance minimizes downtime and extends service life, providing long-term cost savings.
Selection Guide
When ordering, verify the probe option, cable length, standoff adapter, and mounting thread match your application. PLC Source PRO offers this new, original unit with a 12-month warranty. For additional assistance, contact our team.