Introduction

The Bently Nevada 330105-02-12-05-02-05 is a robust, high-precision 3300 XL Reverse Mount Probe designed for applications with limited installation access. Its compact form factor, combined with reliable 8 mm sensing technology, provides accurate and repeatable displacement and vibration readings. This probe ensures dependable performance in industrial machinery-monitoring programs, supporting early fault detection and proactive maintenance strategies.

Technical Specifications

Parameter	Details
Model	330105-02-12-05-02-05
Series	3300 XL
Probe Type	8 mm Reverse Mount Eddy-Current Probe
Total Length	0.5 m
Weight	0.162 kg
Measurement Principle	Eddy-current displacement
Primary Use	Shaft vibration & position monitoring
System Compatibility	3300 XL Proximitor modules

Recommended Related Models

Model	Description
330105-02-12-05-02-00	Reverse mount probe variant
330105-02-12-05-01	Short-length reverse mount probe
330105-02-15	Extended cable 8 mm probe
330130-040-00	Standard 3300 XL proximity probe
330103-00-04	8 mm probe alternative tip design
330171-00-12	3300 series extension cable
330180-51-00	High-temperature probe
330185-01-00	Shaft monitoring probe for turbines
330196-XX-XX	Shielded cabling for noise-prone installations
330980-50-00	OEM-specific proximitor module

Popular Related Models

Model	Description
330104-00-04	Widely used turbine probe
330107-00-10	High-sensitivity eddy-current probe
330103-00-07	Turbine-grade 8 mm probe
330130-065-00	Standard industrial probe
330180-90-00	High-temperature monitoring probe
330171-50-00	Common extension cable
330185-02-12	Rotor-vibration monitoring probe
330178-00-05	OEM compressor probe
330190-08-10	Long-run extension cable
330130-00-05	Standard eddy-current vibration probe

Applications

The 330105-02-12-05-02-05 Reverse Mount Probe is engineered for high-precision monitoring of rotating machinery in situations where traditional forward mounting is impractical. It is ideal for tight bearing housings, confined turbine pedestals, and compressors with limited access. This probe supports critical applications including shaft vibration monitoring, axial displacement tracking, and rotor health diagnostics in gas turbines, steam turbines, centrifugal compressors, and industrial fans.

Advantages

Reverse-mount configuration allows installation in restricted or obstructed spaces
Consistent 8 mm sensing performance, delivering precise displacement and vibration readings
Short 0.5-meter cable ensures minimal signal attenuation while maintaining system accuracy
Durable construction resistant to vibration, temperature, and oil contamination
Full compatibility with 3300 XL Proximitor modules, enabling seamless system integration

FAQs

What is the linear measurement range of this probe?
The probe provides the standard 3300 XL linear range of ~2 mm of dynamic displacement.
Does the 0.5-meter cable length affect signal integrity?
No. The probe is factory-calibrated with this cable length to maintain precise linearity and sensitivity.
Which target materials are recommended for best performance?
Ferromagnetic materials such as 4140 steel or standard rotor shaft materials.
How does reverse mounting influence measurement accuracy?
Accuracy is maintained as long as the probe gap is correctly set; reverse mounting does not degrade performance.
What frequency response can be expected?
The probe handles high-frequency vibrations up to several kilohertz, suitable for fast-rotating equipment.
Is this probe mechanically compatible with other 330105 variants?
Electrically yes, but mechanical fit and mounting dimensions must match the application.
How does it perform in oily or contaminated environments?
Sealed design and non-contact measurement allow stable operation even in oil-laden conditions.
Does temperature fluctuation affect output stability?
Temperature compensation in the 3300 XL series ensures minimal drift over typical operating ranges.
Can it be used with non-Bently 3300 Proximitor modules?
It is recommended only for 3300 XL Proximitor systems to maintain calibration integrity.
What gap voltage behavior should be observed during installation?
The probe produces a stable, monotonic gap voltage as it approaches the target surface, confirming correct alignment.