Product Overview

The Bently Nevada 330105-XX-XX-05-02-CN (179607-01) is a 3300 XL 8 mm eddy-current proximity probe in a reverse mount configuration, used for shaft vibration and radial displacement monitoring in rotating machinery.

It belongs to the Bently Nevada 3300 XL proximity transducer system, widely applied in turbines, compressors, pumps, and generators for continuous condition monitoring and machine protection.

The “-XX-XX” ordering code indicates configurable options (such as length and connector variants), while 179607-01 is a reference ordering/part number used in procurement systems.

Technical Specifications

Function and Working Principle

The probe uses the eddy-current principle, where an electromagnetic field is generated at the probe tip. When a conductive shaft moves within this field, eddy currents are induced, and the resulting signal change is converted into displacement measurement.

Operating Principle

1. Probe generates high-frequency electromagnetic field
2. Eddy currents are induced in the shaft surface
3. Gap distance changes alter impedance response
4. Output voltage represents vibration and displacement

$x\propto V$

Where displacement (x) is proportional to the output voltage (V).

Key Functions

• Measures shaft vibration and radial displacement
• Enables continuous machine condition monitoring
• Detects early mechanical issues:
  • Imbalance
  • Misalignment
  • Bearing wear
  • Shaft instability
• Supports machine protection and shutdown systems

System Role

This probe is part of the 3300 XL proximity measurement chain:

• Proximity probe
• Extension cable
• Proximitor sensor (signal conditioner)

Together, they provide a calibrated system for:

• Vibration monitoring
• Shaft position measurement
• Protection logic inputs

Industrial Applications

• Steam turbines
• Gas turbines
• Compressors
• Pumps
• Generators
• Industrial fans
• Petrochemical rotating machinery
• Power generation systems

Installation Guidelines

• Designed for reverse mount installation
• Requires precise air-gap calibration
• Must maintain rigid alignment with shaft surface
• 0.5 m configuration reduces signal loss risk
• Proper shielding and grounding required
• Must be used with matched Bently Nevada system components

⚠️ Incorrect installation or mismatched components can lead to inaccurate vibration readings and protection system errors.

Compatible System Components

• Bently Nevada 3300 XL Proximitor sensors
• 3300 XL extension cables
• 3300 / 3500 monitoring systems
• Junction boxes and termination modules
• Industrial condition monitoring systems

Key Advantages

• Flexible reverse-mount installation design
• High-precision vibration measurement
• Stable eddy-current sensing performance
• Compatible with API 670 standards
• Reliable long-term operation
• Supports predictive maintenance programs

Technical FAQs

Q1: What does “330105-XX-XX” mean?
It represents configurable options such as system length and connector variants.

Q2: What is part number 179607-01?
It is an alternate ordering/reference number for procurement or catalog systems.

Q3: What does this probe measure?
It measures shaft vibration and radial displacement.

Q4: Is it a standalone device?
No. It must be used with a Proximitor sensor and extension cable system.

Conclusion

The Bently Nevada 330105-XX-XX-05-02-CN (179607-01) 3300 XL 8 mm Reverse Mount Probe is a configurable eddy-current sensor designed for compact industrial installations. It provides accurate vibration and displacement monitoring, enabling reliable machine protection and predictive maintenance in critical rotating equipment.