Bently Nevada 21000-16-10-00-077-03-02 3300 XL 8mm Probe Assembly

Product Overview

The Bently Nevada 21000-16-10-00-077-03-02 is a professional-grade Proximity Probe Housing Assembly designed for critical machinery protection. This explosion-proof enclosure provides a secure environment for 3300 XL 8mm proximity probes, ensuring reliable vibration and position monitoring in hazardous industrial areas. Compliant with API 670 standards and featuring CSA Type 4 certification, this assembly is engineered to withstand extreme conditions while maintaining high-precision signal integrity for rotating equipment.

Technical Configuration

• Manufacturer: Bently Nevada (Baker Hughes)
• Part Number: 21000-16-10-00-077-03-02
• Probe Type: 3300 XL 8mm (1.0m / 39" cable)
• Penetration Depth: 7.7 Inches (Adjustable ±0.5")
• Mounting Thread: 3/4-14 NPT
• Housing Material: Aluminum body with 304 Stainless Steel sleeve (3.2mm thick)
• Compliance: API 670, CSA Type 4, ATEX/IECEx Zone 1 & 2

Technical Specifications

Installation & Design Features

1. Precise Penetration: This specific configuration provides a 7.7-inch penetration depth, which can be fine-tuned by ±0.5 inches during installation. For deeper penetrations exceeding 12 inches, optional 300mm+ probe supports are recommended to ensure mechanical stability.

2. Corrosion & Vibration Resistance: The aluminum body is reinforced with a 304 stainless steel sleeve to prevent corrosion in harsh atmospheres. The package includes three anti-vibration grommets designed for 5/16" to 3/8" cables, ensuring that high-frequency machinery vibrations do not compromise the cable connections or signal quality.

3. Hazardous Area Certified: Designed for Zone 1 and Zone 2 environments, the 21000 series housing features dual-conduit ports and is fully trackable via laser-etched serial and part numbers. The assembly includes stainless steel locking washers to prevent loosening under operational stress.

Engineering Advantages

The Bently Nevada 21000 series housing assembly is the industrial benchmark for proximity probe protection. By utilizing 3.2mm thick stainless steel for critical wear components and offering IP66-rated ingress protection, it ensures that sensitive 3300 XL transducers remain accurate over their entire service life. The inclusion of NPT thread reducers and cable seal grips in the standard package simplifies retrofitting and integration into existing monitoring systems.

Technical FAQs

Q1: What is the benefit of the CSA Type 4 rating?
A1: The CSA Type 4 rating indicates the enclosure is explosion-proof and provides protection against windblown dust, rain, and hose-directed water, making it suitable for outdoor industrial use.

Q2: Can the penetration depth be adjusted after the housing is mounted?
A2: Yes, the 21000-16-10-00-077-03-02 allows for an adjustment range of ±0.5 inches (approximately 12.7mm) to achieve the perfect gap between the probe tip and the target material.

Q3: Is this housing compatible with non-3300 XL probes?
A3: While specifically configured for the 3300 XL 8mm probe, the 21000 series is part of a modular system; however, signal integrity and warranty coverage are optimized when used with the factory-specified Bently Nevada transducers.

Download Resource

Access Bently Nevada 21000-16-10-00-077-03-02 Technical Datasheet PDF