Bently Nevada 330105-02-12-05-02-00 | 8mm Reverse Mount Proximity Probe

Bently Nevada 330105-02-12-05-02-00 Reverse Mount Proximity Probe

The Bently Nevada 330105-02-12-05-02-00 represents advanced engineering in reverse mount proximity probe technology, specifically designed for challenging installation environments where traditional front-mount sensors cannot be deployed. This 8mm probe delivers precision displacement measurements for critical rotating machinery protection systems.

Technical Specifications

• Part Number: 330105-02-12-05-02-00
• Series: 3300 XL Reverse Mount
• Probe Diameter: 8mm (0.315 inches)
• Thread Size: M12 x 1.0
• Active Tip Length: 5mm
• Housing Material: Stainless steel 316L
• Operating Range: -30 °C to +120 °C (-22 °F to +248 °F)
• Pressure Rating: Up to 3000 PSI
• Linear Range: 0.5mm to 2.0mm (typical)
• Frequency Response: DC to 10 kHz
• Compliance Standards: API 670, ISO 20816

Reverse Mount Design Advantages

Unlike conventional proximity probes, the reverse mount configuration allows installation from the back of the mounting surface, making it ideal for:

• Retrofit applications with limited front access
• High-pressure or high-temperature zones requiring sealed installations
• Compact machinery housings with space constraints
• Environments where probe tip protection is critical

Industrial Applications

This reverse mount probe excels across demanding industrial sectors:

Power Generation: Steam turbine journal bearing monitoring, generator shaft displacement tracking, and thrust position measurement in combined-cycle plants.

Oil & Gas Processing: Compressor rotor position surveillance, pump shaft vibration analysis, and critical machinery protection in offshore platforms and refineries.

Aerospace & Defense: Gas turbine engine test stands, auxiliary power unit monitoring, and precision shaft positioning in ground support equipment.

Heavy Industry: Large motor monitoring, fan and blower protection systems, and gearbox input/output shaft tracking in steel mills and mining operations.

Complete Monitoring System Integration

The 330105-02-12-05-02-00 probe integrates seamlessly with Bently Nevada 3300 XL proximitor systems and 3500 series monitoring platforms. Pair with appropriate extension cables (1m to 9m lengths available) and proximitor signal conditioners for a complete vibration monitoring solution that meets API 670 machinery protection requirements.

Installation & Configuration

Each probe ships factory-calibrated with traceable certification documentation. The reverse mount design features a precision-machined thread for secure installation and includes a locking mechanism to prevent rotation during operation. Installation depth is adjustable to optimize the linear operating range for your specific target material and gap requirements.

Frequently Asked Questions

Q: What makes reverse mount probes different from standard proximity probes?
A: Reverse mount probes install from behind the mounting surface rather than the front, allowing deployment in tight spaces or retrofit situations where front access is restricted. The sensing tip extends through the mounting hole to measure target displacement.

Q: Which extension cables are compatible with this probe?
A: This probe works with all 3300 XL 8mm extension cables. Common lengths include 4m, 5m, 7.5m, and 8m. The total system cable length (probe + extension) should not exceed 9 meters for optimal performance.

Q: Can this probe measure through non-metallic barriers?
A: No, proximity probes require a conductive ferrous target material. The probe must have a clear path to the metal shaft or target surface being monitored.

Q: Is factory recalibration available?
A: Yes, we offer factory recalibration services with full certification. Each probe includes a 12-month warranty covering manufacturing defects and calibration accuracy.

Q: What gap voltage corresponds to the optimal measurement range?
A: The optimal operating range typically produces -8 to -12 VDC gap voltage when paired with a 3300 XL proximitor. Consult the calibration certificate for your specific probe’s characteristics.

Related Extension Cables & Accessories

Quality Assurance & Technical Support

Every reverse mount probe undergoes comprehensive factory testing including linearity verification, temperature cycling, and vibration resistance validation. We provide complete technical documentation, installation guidelines, and responsive engineering support to ensure successful system deployment.

Warranty Coverage: 12 months comprehensive protection
Certifications: API 670 compliant, ISO 9001 manufactured
Delivery: Secure packaging with worldwide logistics support
Technical Support: Application engineering assistance available

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