330103-00-04-10-01-05 (1) 330103-00-04-10-01-05 (3) 330103-00-04-10-01-05 (2) 330103-00-04-10-01-05 (4)

The Bently Nevada 330103-00-04-20-02-00 is a 3300 XL 8 mm eddy current proximity probe designed for high-accuracy vibration and shaft position monitoring in rotating machinery. It is widely used in turbines, compressors, pumps, and industrial drive systems where continuous condition monitoring is essential for equipment protection, reliability improvement, and predictive maintenance strategies.

As part of the Bently Nevada 3300 XL system, this probe is engineered for long-term stability, interchangeability, and robust performance under harsh industrial operating conditions.

Technical Specifications

This model follows the structured 3300 XL ordering code system, where each segment defines mechanical configuration and electrical setup.

Specification Item	Details
Series	3300 XL 8 mm Proximity Probe
Model	330103-00-04-20-02-00
Measurement Type	Eddy current (non-contact displacement sensing)
Probe Diameter	8 mm
Thread Type	M10 × 1 (standard 3300 XL metric mounting)
Case Length	~40 mm (code “04”)
Total Cable Length	~2.0 m (code “20”)
Connector Type	Miniature coaxial ClickLoc™
Linear Range	~2.0 mm (80 mil system range)
Sensitivity	~7.87 V/mm (200 mV/mil system matched)
Housing Material	Stainless steel
Probe Tip Material	PPS (Polyphenylene sulfide)
Operating Temperature	approx. -51°C to +177°C (system dependent)
Weight	~0.32–0.45 kg

Dimensions (approx.): ~100 × 50 × 40 mm (varies slightly depending on packaging and vendor configuration)

Recommended Related Models

For a complete vibration monitoring system, this probe is typically paired with:

330180 Proximitor Sensor Module
330130 Extension Cable (for split or extended installations)
3500/42M Vibration Monitor Module
3500/15 Power Supply Module
Other 3300 XL 8 mm probe variants (different cable lengths or approvals)

These components ensure stable signal conditioning and full compatibility within Bently Nevada machinery protection systems.

Popular Bently Nevada Models

Within the same industrial ecosystem, commonly used alternatives include:

330103-00-04-10-02-00 (1.0 m cable variant)
330103-00-04-50-02-00 (5.0 m extended cable version)
330103-00-04-10-02-CN (regional approval variant)
330103-00-03-05-02-05 (short cable configuration)
330180 Proximitor Sensor series

Applications

This probe is designed for continuous monitoring of critical rotating machinery in demanding environments:

Gas turbine shaft vibration monitoring
Steam turbine radial and axial displacement measurement
Centrifugal compressor condition monitoring
Pump cavitation and misalignment detection
Gearbox vibration diagnostics
Oil & gas rotating equipment protection systems
Power generation predictive maintenance platforms

It enables early detection of mechanical faults such as imbalance, misalignment, and bearing wear before they escalate into costly downtime events.

Advantages

Why this model is widely used in industrial monitoring systems:

High interchangeability within the 3300 XL architecture
Stable eddy current signal output for long-term measurement accuracy
Rugged stainless steel construction for harsh environments
ClickLoc connector reduces installation time and wiring errors
Strong resistance to vibration, EMI, and industrial noise
Fully compatible with API 670-compliant monitoring systems
Designed for continuous 24/7 predictive maintenance operation

Technical FAQs

1. What is the main function of this probe?
It measures shaft vibration and displacement using eddy current sensing.

2. What does the “04” code represent?
It indicates a ~40 mm case length configuration.

3. What does the “20” code mean?
It represents an integrated cable length of approximately 2.0 meters.

4. Is it compatible with other 3300 XL components?
Yes, it is fully compatible within the Bently Nevada 3300 XL system.

5. What industries use this model?
Power generation, oil & gas, petrochemical, and heavy industrial sectors.

6. What is the measurement principle?
Non-contact eddy current displacement measurement.

7. Can it operate in harsh environments?
Yes, it is designed for high temperature, vibration, and contamination resistance.

8. Does it require calibration during installation?
No individual calibration is required when used with a matched Proximitor system.

9. What is the expected service life?
Typically over 10 years depending on operating conditions and maintenance practices.

10. Why is the 3300 XL system widely used?
Because it provides standardized accuracy, modular interchangeability, and proven reliability in critical rotating machinery monitoring systems.

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