21000-34-00-20-066-03-02 | Bently Nevada 8 mm Probe Housing Assembly

Solving Vibration Monitoring Challenges with the 21000-34-00-20-066-03-02

When critical rotating machinery demands precise and continuous vibration monitoring, the 21000-34-00-20-066-03-02 from Bently Nevada provides a robust solution. This Proximity Probe Housing Assembly is engineered for hazardous area applications, offering explosion-proof ratings and CSA Type 4 enclosure certification. With a 2.0 in standoff adapter and 6.6 in probe penetration, it delivers accurate shaft displacement measurements in the harshest industrial environments.

Key Features & Technical Specs of the 21000-34-00-20-066-03-02

• Probe Option: 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals
• Standoff Adapter: 2.0 in (20 suffix)
• Probe Penetration: 6.6 in (066 suffix)
• Mounting Thread: 3/4-14 NPT (-02 option)
• Material: Aluminum body with 304 stainless steel sleeve
• Probe Cable Length: 1.0 m
• Maximum (C) + (D) with visible probe P/N and S/N: 17.0 in (43.18 cm)
• Maximum (C) + (D) Dimension: 32.9 in (83.5 cm)
• Weight: 1.1 kg (2.4 lb) typical, without fittings
• Fitting Option: Includes one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and cable seal grip with grommets for cable sizes 1/8 to 3/8 inches

The 21000-34-00-20-066-03-02 stands out with its 3300 XL 8 mm probe, which ensures high-resolution data for early fault detection. This distinctive spec reduces unplanned downtime by capturing subtle shaft vibrations before they escalate.

Real-World Applications for the 21000-34-00-20-066-03-02

In petrochemical refineries, the 21000-34-00-20-066-03-02 monitors compressor and turbine shafts in explosive atmospheres. Its CSA Type 4 enclosure withstands harsh weather and washdowns. Similarly, power generation plants use this housing assembly for steam turbine vibration monitoring. The API 670 compliance ensures seamless integration into existing safety systems. As a result, engineers trust this model for critical asset protection.

Installation & Setup Guide

Mount the 21000-34-00-20-066-03-02 using the 3/4-14 NPT thread option. First, select the appropriate cable seal grip grommet for your cable diameter (1/8 to 3/8 inches). Then, attach the standoff adapter to achieve the 2.0 in offset. Finally, secure the probe sleeve to the desired 6.6 in penetration depth. Always follow Bently Nevada's manual for torque specifications.

Maintenance & Reliability Tips

Regularly inspect the O-rings and thread seal for wear to maintain explosion-proof integrity. The aluminum body and stainless steel sleeve resist corrosion in humid environments. By choosing the 21000-34-00-20-066-03-02, you reduce long-term replacement costs due to its durable construction. Schedule annual checks of the probe cable and connector protector for optimal performance.

Compatibility & Integration

The 21000-34-00-20-066-03-02 works with Bently Nevada monitoring systems that accept 3300 XL 8 mm probes. It integrates with vibration analyzers and data acquisition units via the 1.0 m probe cable. The CSA approval simplifies installation in hazardous areas requiring intrinsic safety. For specific controller compatibility, consult the official datasheet.

FAQ about the 21000-34-00-20-066-03-02

What is the probe cable length for this model?

The probe cable length is 1.0 m.

What mounting thread does the -02 option specify?

The -02 option specifies a 3/4-14 NPT thread.

What fittings are included with the 21000-34-00-20-066-03-02?

It includes one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and a cable seal grip with grommets for cables from 1/8 to 3/8 inches.

Is this housing assembly suitable for hazardous areas?

Yes, it is rated explosion proof for hazardous areas and has CSA Type 4 enclosure certification.

What is the typical weight without fittings?

The typical weight is 1.1 kg (2.4 lb).

Product Support & Availability

The 21000-34-00-20-066-03-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for fast delivery and technical support.