The Bently Nevada 330105-02-12-15-02-CN is a high-performance 3300 XL 8mm Reverse Mount Proximity Probe, designed for precise, non-contact measurement of shaft position and vibration in rotating machinery. As part of the 3300 XL series, it provides reliable operation in harsh industrial environments while ensuring full API 670 compliance for critical machine monitoring.

This model features a reverse-mount probe configuration, offering easier installation in tight or constrained mounting areas such as axial end caps or limited clearance housings. The probe utilizes eddy current technology to deliver high-resolution measurements of static and dynamic motion with exceptional linearity and temperature stability.

Key Features

• Reverse mount probe for constrained-access installations

• 3300 XL 8mm series ensures consistent performance across demanding environments

• Full API 670 compliance for machinery protection systems

• Factory-calibrated to work with matching extension cables and Proximitor® sensors

• Eddy current sensing technology for accurate shaft position and vibration monitoring

• Corrosion-resistant stainless steel housing for long-term durability

• Excellent thermal stability and linearity across extended ranges

• Plug-and-play compatibility with 3300 XL extension cables and Proximitor modules

• Enhanced electrical shielding for operation in high EMI environments

Technical Specifications

Industry Applications

The 330105-02-12-15-02-CN probe is ideal for integration into machine protection and condition monitoring systems in:

• Oil & Gas: Compressors, gas turbines, gearboxes, pumps

• Power Generation: Steam turbines, generators, fans

• Petrochemical & Refining: High-speed rotating machinery and axial position detection

• Steel & Mining: Crushers, rolling mills, and heavy-duty drives

• Pulp & Paper: Monitoring of drying cylinders, calenders, and press rolls

• Marine Engineering: Shaft condition monitoring in propulsion and auxiliary systems

Product Advantages

• Reverse-mount flexibility: Allows access in installations where forward mounting is restricted

• Superior linearity and temperature performance: Accurate under varying thermal and mechanical conditions

• Fully compatible system: Seamless integration with 3300 XL extension cables and Proximitor® sensors

• Durable stainless steel construction: Resists corrosion and mechanical wear

• Non-intrusive sensing: No physical contact with shaft—no wear or drift

• High EMI immunity: Ensures accurate operation in electrically noisy environments

• API 670 compliant: Approved for use in critical turbomachinery protection systems

• Minimal maintenance: Long service life with minimal recalibration needs

Frequently Asked Questions (FAQ)

1. What is the primary function of the 330105-02-12-15-02-CN probe?

It measures shaft position and vibration using non-contact eddy current sensing.

2. What does “reverse mount” mean?

It means the probe is designed to be inserted and secured from behind the mounting surface, ideal for tight or blind-side installations.

3. Is this probe compatible with all Bently Nevada monitors?

It is designed to work specifically with 3300 XL Proximitor® sensors and matching extension cables.

4. Can it operate in high temperatures?

Yes, it supports continuous operation up to +177°C.

5. What is the sensing range of this probe?

The linear sensing range is approximately 2 mm (80 mils).

6. Is it suitable for high-speed rotating equipment?

Yes, it is ideal for monitoring dynamic vibration and static position on high-speed machinery.

7. What thread type does it use?

M10 × 1 metric thread.

8. Does it include the extension cable?

No, it includes only the probe and integral 2-meter cable. Extension cables are sold separately.

9. Is the connector environmentally sealed?

Yes, when mated with the proper extension cable and secured correctly, it achieves IP68 sealing.

10. What is the significance of the “CN” in the model number?

“CN” indicates configuration or compliance tailored for China—such as labeling, documentation, or market-specific testing.