21000-16-05-00-094-03-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the 21000-16-05-00-094-03-02

When harsh industrial environments demand reliable vibration monitoring, the 21000-16-05-00-094-03-02 from Bently Nevada provides a robust solution. This Proximity Probe Housing Assembly is part of the trusted 21000 series, engineered for external mounting per API 670 standards. With an aluminum body and 304 stainless steel sleeve, it withstands demanding conditions while housing a 3300 XL 8 mm probe. The assembly includes a 0.5 m (20 in) probe cable and a 9.4 in probe penetration, making it suitable for precise shaft displacement measurements.

Key Features and Technical Specs

• Probe option: 3300 XL 8 mm probe with connector
• Probe cable length: 0.5 m (20 in)
• Probe penetration: 9.4 in
• Mounting thread: 3/4-14 NPT
• Housing material: Aluminum body with 304 stainless steel sleeve
• Weight: 1.1 kg (2.4 lb) typical, without fittings
• Fittings included: One 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, one cable seal grip with grommets for multiple cable sizes
• Hazardous area approvals: CSA certified for Class 1 Divisions 1 and 2 Groups C and D, Class 2 Divisions 1 and 2 Groups E, F and G, Class III, Enclosure Type 4
• Temperature ratings: T5 @ Ta = -50 °C to +40 °C; T4 @ Ta = -50 °C to +80 °C

A distinctive feature is the 9.4 in probe penetration, which allows deep insertion into machinery for accurate proximity sensing. This spec directly supports reliable vibration monitoring in rotating equipment.

Applications and Use Cases

Industries such as oil and gas, power generation, and heavy manufacturing benefit from the 21000-16-05-00-094-03-02. It excels in monitoring shaft vibration and position in turbines, compressors, and pumps. Furthermore, its CSA explosion-proof certification makes it ideal for hazardous areas where safety is paramount. Consequently, engineers choose this housing for critical asset protection.

Installation and Setup

Mounting the assembly requires a 3/4-14 NPT threaded port. The included fittings simplify conduit connections: use the reducer for 1/2-14 NPT or the cable seal grip for various cable diameters. Ensure the probe sleeve penetrates 9.4 in for optimal sensing. Always follow the manufacturer's manual for proper torque and alignment.

Maintenance and Reliability

Regular inspection of the housing and probe cable prevents unexpected failures. Check the O-rings and thread seal periodically for wear. The aluminum and stainless steel construction resists corrosion, extending service life. By following routine maintenance, users reduce downtime and maximize ROI.

Compatibility and Integration

The 21000-16-05-00-094-03-02 integrates with Bently Nevada monitoring systems that accept 3300 XL 8 mm probes. It is fully compliant with API 670 for externally mounted housings. For intrinsically safe applications, pair it with hazardous area approved proximity probes.

Troubleshooting and Common Issues

If signal loss occurs, verify the cable connection and probe integrity. Ensure the probe penetration dimension (D) matches the 9.4 in specification. For mounting thread issues, confirm the 3/4-14 NPT fitting is properly sealed. Refer to Bently Nevada documentation for detailed diagnostics.

FAQ about the 21000-16-05-00-094-03-02

What is the probe cable length for this model?

The probe cable length is 0.5 m (20 in).

What mounting thread does the assembly use?

It uses a 3/4-14 NPT mounting thread.

Is this housing suitable for hazardous areas?

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

What materials are used in the housing?

The housing has an aluminum body with a 304 stainless steel sleeve.

What is the typical weight of the assembly?

The typical weight is 1.1 kg (2.4 lb) without fittings.

Product Support and Availability

The 21000-16-05-00-094-03-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead times. We provide new and original factory-packed units with a 12-month warranty.