21000-28-10-15-050-04-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the 21000-28-10-15-050-04-02

When you need a robust solution for externally mounted proximity probes, the 21000-28-10-15-050-04-02 from Bently Nevada delivers. This housing assembly is part of the 21000 series, designed for hazardous area applications. It combines an aluminum body with a 304 stainless steel sleeve for durability. With an 8 mm 3300 XL probe and a 1.0 m cable, it meets API 670 standards.

Key Features and Technical Specs of the 21000-28-10-15-050-04-02

• Probe Option: 28 = 3300 XL 8 mm probe with selectable hazardous area approvals.
• Cable Length: 10 = 1.0 m (39 in) probe cable.
• Standoff Adapter: 1.5 in (38 mm) = 15.
• Probe Penetration: 050 = 5 in.
• Fitting Option: 04 = one 3/4-14 NPT plug only.
• Mounting Thread: 02 = 3/4-14 NPT.
• Material: Aluminum body with 304 stainless steel sleeve.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.

A standout spec is the 8 mm 3300 XL probe, which ensures precise proximity measurements in tight spaces. This feature directly supports reliable vibration monitoring for rotating machinery.

Applications and Use Cases for the 21000-28-10-15-050-04-02

In industrial settings, the 21000-28-10-15-050-04-02 excels for externally mounted proximity probes. It is ideal for monitoring shaft vibration and position in turbines, compressors, and pumps. Because it is CSA certified for explosion-proof areas, it suits hazardous environments like oil refineries and chemical plants. Moreover, its compliance with API 670 ensures compatibility with industry-standard systems.

Installation and Setup of the 21000-28-10-15-050-04-02

Mounting the 21000-28-10-15-050-04-02 requires the 3/4-14 NPT thread option. The assembly includes a dome cover, threaded ports, and a probe sleeve. Ensure the standoff adapter length matches your application. For optimal performance, follow Bently Nevada's mounting guidelines. The housing is rated CSA Type 4, so it withstands harsh conditions.

Maintenance and Reliability of the 21000-28-10-15-050-04-02

Regular inspection of the 21000-28-10-15-050-04-02 prevents downtime. Check the O-rings and thread seal for wear. The aluminum and stainless steel construction resists corrosion, extending service life. For hazardous areas, verify the enclosure integrity per the manufacturer's safety manual. This proactive care reduces replacement costs over time.

Compatibility and Integration

The 21000-28-10-15-050-04-02 integrates with Bently Nevada monitoring systems. It supports non-incendive circuits when connected per drawing 140979. The housing is compatible with 3300 XL 8 mm probes for seamless data collection. For intrinsically safe applications, order the appropriate hazardous area approved probe.

Troubleshooting Common Issues with the 21000-28-10-15-050-04-02

If the probe cable length exceeds the maximum (C) + (D) dimension of 32.9 in (83.5 cm), signal degradation may occur. Verify the mounting thread is properly sealed to avoid moisture ingress. For incorrect readings, check the standoff adapter alignment. Always consult Bently Nevada documentation for detailed diagnostics.

FAQ about the 21000-28-10-15-050-04-02

What is the probe cable length for the 21000-28-10-15-050-04-02?

The probe cable length is 1.0 m (39 in), as indicated by suffix code 10.

What mounting thread does the 21000-28-10-15-050-04-02 use?

It uses a 3/4-14 NPT thread, specified by suffix code 02.

Is the 21000-28-10-15-050-04-02 suitable for hazardous areas?

Yes, it is CSA certified for explosion-proof applications in Class I Divisions 1 and 2 Groups C and D, and more.

What is the weight of the 21000-28-10-15-050-04-02?

It weighs 1.1 kg (2.4 lb) typical, without fittings.

Product Support and Availability

The 21000-28-10-15-050-04-02 is available from Petro Auto Tech in new and original factory packing. It comes with a 12-month factory warranty. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.