
Product Overview
The Bently Nevada 21000-34-05-00-030-03-02 is a Proximity Probe Housing Assembly designed for the 3300 XL 8 mm proximity probe system. As part of the 21000 series, this housing ensures precise probe alignment, mechanical stability, and environmental protection, which are critical for accurate shaft vibration and displacement monitoring in industrial rotating machinery.
It is typically installed on turbines, compressors, pumps, and generators, enabling reliable and consistent probe performance even in harsh industrial environments.
Technical Specifications
| Parameter |
Details |
| Manufacturer |
Bently Nevada |
| Model |
21000-34-05-00-030-03-02 |
| Product Type |
Proximity Probe Housing Assembly |
| Series |
21000 Series |
| Compatible Probe System |
3300 XL 8 mm proximity probe |
| Housing Body Diameter |
83.3 mm |
| Weight |
1.1 kg |
| Mounting Type |
Threaded housing assembly |
| Primary Function |
Mechanical support and probe protection |
| Application |
Shaft vibration and displacement monitoring |
| Operating Environment |
Industrial rotating machinery |
Function and Working Principle
The housing assembly ensures accurate probe operation by:
- Providing stable mechanical alignment with the rotating shaft.
- Maintaining a consistent probe-to-shaft gap, essential for precise eddy-current measurements.
- Protecting the probe and cabling from dust, oil, moisture, and mechanical impacts.
- Allowing easy installation, adjustment, and maintenance without full disassembly of the machine.
Although the housing itself does not sense vibrations or displacements, it is essential for accurate and reliable probe measurements.
Key Features
- Compatible with Bently Nevada 3300 XL 8 mm proximity probes
- Rugged industrial construction for harsh environments
- Threaded mounting for secure installation
- Housing body diameter: 83.3 mm
- Lightweight at 1.1 kg for easy handling
- Corrosion-resistant materials
- Ensures precise and repeatable probe alignment
- Modular design simplifies maintenance and replacement
Industrial Applications
- Steam and gas turbine monitoring
- Compressor shaft displacement measurement
- Pump vibration and condition monitoring
- Generator shaft vibration measurement
- Industrial gearbox monitoring
- Power plant rotating equipment protection
- Oil & gas facilities machinery monitoring
Installation Overview
- Mounts to machinery bearing housings or support brackets using threaded fittings
- Houses 3300 XL proximity probes aligned toward the rotating shaft
- Provides sealed cable routing for environmental protection
- Supports maintenance, calibration, and probe replacement without full disassembly
Compatible Components
| Component |
Description |
| 3300 XL 8 mm Probe |
Eddy-current proximity sensor |
| 3300 XL Extension Cable |
Cable connecting probe to signal conditioning module |
| 3300 XL Proximitor Sensor |
Signal conditioning unit |
| 3500 Monitoring System |
Machinery protection and monitoring platform |
| System 1 Software |
Condition monitoring and diagnostic software |
Alternative Models
| Model |
Description |
| 21000-34-05-00-015-03-02 |
Previous housing assembly variant |
| 21000-34-05-00-020-03-02 |
Alternate configuration |
| 21000-33-10-00-070-04-02 |
Previous series housing assembly |
| 21000-33-05-00-106-04-02 |
Related 21000 series model |
| 21000-28-28-05-00-092-03-02 |
Alternate housing assembly variant |
Key Advantages
- Ensures precise and stable probe positioning
- Protects sensitive 3300 XL probes in harsh environments
- Supports continuous and reliable machinery monitoring
- Simplifies maintenance and replacement operations
- Enhances accuracy and reliability of vibration and displacement measurements
Conclusion
The Bently Nevada 21000-34-05-00-030-03-02 Proximity Probe Housing Assembly is a robust and precise mechanical solution for 3300 XL proximity probes. It provides secure mounting, environmental protection, and accurate alignment to ensure highly reliable vibration and displacement monitoring for critical industrial rotating machinery.