Product Overview

The 330904-00-12-10-01-CN is a high-precision eddy current sensor from the Bently Nevada 3300 NSv (Narrow Side-view) series. This proximity probe is specifically engineered for machinery with tight internal clearances or small shaft diameters where standard 8mm probes cannot be utilized. By employing a non-contacting measurement principle, it provides highly accurate radial vibration and axial position data. This specific model features an armored cable for enhanced mechanical protection and carries the "CN" suffix, indicating compliance with regional Chinese standards. It is a fundamental component for Turbine Supervisory Instrumentation (TSI) and predictive maintenance strategies.

Hardware Parameters and Key Characteristics

Designed for durability and signal integrity, this probe incorporates the ClickLoc connector system and advanced electromagnetic shielding.

• Model Number 330904-00-12-10-01-CN

• Thread Type M8 x 1 Metric Thread (Unthreaded length: 0 mm)

• Case Length 120 mm Total Case Length

• Cable Length 1.0 Meter (approx. 39 inches)

• Cable Type Armored construction for harsh environment protection

• Connector Miniature coaxial ClickLoc with gold-plated contacts

• Connector Protection Includes factory-installed connector protector

• Approvals CE Certified with RFI/EMI immunity; CN regional certification

• Frequency Response DC to 10 kHz

• Target Material AISI 4140 steel (standard calibration)

Industrial Applications and Use Cases

The 3300 NSv system is the industry standard for specialized rotating equipment where traditional sensors are too large to install. Common applications include:

• Centrifugal Air Compressors Monitoring vibration in small-diameter shaft assemblies and internal gear units.

• Small Steam Turbines Tracking axial thrust position and radial displacement in space-constrained bearing housings.

• High-Speed Turbo-Expanders Delivering reliable data for machines where small shaft surface area requires a narrow-view sensor tip.

• Retrofit Projects Providing a compact solution for older machinery being upgraded to modern machinery protection standards.

• OEM Integration Serving as a primary sensor for pump and motor manufacturers requiring built-in vibration monitoring in compact enclosures.

The armored casing and ClickLoc locking mechanism ensure that the signal path remains uninterrupted even in high-vibration or high-moisture zones, effectively reducing maintenance intervention and preventing unplanned machinery shutdowns.