Bently Nevada 330901-00-08-10-02-00 3300 NSv Proximity Probe

Technical Role and Specialized Application

The Bently Nevada 330901-00-08-10-02-00 operates as a high-precision Near Surface (NSv) eddy current sensor. Engineers specifically deploy this probe in applications where small shaft diameters or confined mounting spaces prevent the use of standard 8mm probes. By generating a high-frequency electromagnetic field, the sensor tracks microscopic changes in distance between the probe tip and the target. Consequently, the 3300 NSv system delivers reliable vibration and position data for auxiliary machinery, even when the target size is as small as 2 mm (0.08 in).

Detailed Configuration Specifications

• Brand: Bently Nevada
• Model Number: 330901-00-08-10-02-00
• Probe Type: 3300 NSv Proximity Probe
• Thread Type: 3/8-24 UNF English Thread
• Unthreaded Length: 0.0 inches
• Overall Case Length: 0.8 inches
• Total Cable Length: 1.0 meter
• Connector Type: Miniature coaxial ClickLoc connector with connector protector
• Agency Approval: No hazardous area approvals
• Linear Range: 1.5 mm
• Operating Temperature: -52°C to +177°C

Key Features and Performance Benefits

The 330901 probe incorporates a polyphenylene sulfide (PPS) tip that effectively resists chemical corrosion and fluid ingress. Because the NSv system utilizes a higher excitation frequency than standard 8mm systems, it successfully resolves signals on targets that are too small for conventional probes. This capability makes the 330901-00-08-10-02-00 the preferred choice for:

• Small centrifugal and axial compressors
• High-speed aero-derivative gas turbines
• Radial vibration monitoring on shafts under 50 mm (2 in)
• Thrust position sensing in confined bearing housings

Installation and System Compatibility

Technicians must pair this probe with a matching 3300 NSv Extension Cable and a 3300 NSv Proximitor Sensor to ensure measurement accuracy. For this 1.0-meter probe, the user typically selects a 4.0-meter extension cable to achieve the required 5.0-meter total system length. Furthermore, the included connector protector (02 option) provides a mechanical seal that prevents lubricating oil from grounding the coaxial connection. This protective feature ensures that the 3500 Monitoring System receives a clean, noise-free signal for critical machinery protection and predictive maintenance analysis.