Selecting the Right Vibration Probe for Critical Machinery
When protecting rotating assets like turbines, compressors, and pumps, the choice of proximity probe directly impacts measurement reliability. The Bently Nevada 330101-00-44-10-02-CN is a 3300 XL 8 mm probe with a 3/8-24 UNF thread, without armor. This component is engineered for eddy-current vibration and position sensing in harsh industrial environments.
Technical Specifications Breakdown
Key parameters for the 330101-00-44-10-02-CN are listed below for quick reference:
| Feature | Specification |
|---|---|
| Unthreaded Length Option | Minimum unthreaded length: 0.0 in. |
| Overall Case Length Option | 44 - 4.4 in |
| Total Length Option | 10 - 1.0 metre (3.3 feet) |
| Connector and Cable-Type Option | 02 Miniature coaxial ClickLoc connector, standard cable |
| Agency Approval Option | CN Country Specific Approval |
| Linear Range | 2 mm (80 mils). Linear range begins at approximately 0.25 mm (10 mils) from target and is from 0.25 to 2.3 mm (10 to 90 mils) (approximately –1 to –17 Vdc). |
| Incremental Scale Factor (ISF) - Standard 5 or 1 meter System | 7.87 V/mm (200 mV/mil) ± 5% including interchangeability error when measured in increments of 0.25 mm (10 mils) over the 80 mil linear range from 0°C to +45°C (+32°F to +113°F). |
| Probe Tip Material | Polyphenylene sulfide (PPS). |
| Probe Case Material | AISI 303 or 304 stainless steel (SST). |
| Probe Temperature Range - Standard Probe | -52°C to +177°C (-62°F to +350°F) |
Application Scenarios for Vibration Monitoring
This probe is well-suited for measuring radial vibration and axial position in rotating machinery. The 8 mm diameter provides a thicker encapsulation of the probe coil in molded PPS plastic, resulting in a more rugged probe. Use it in steam turbines, centrifugal compressors, and large pumps where reliable shaft displacement data is critical for predictive maintenance. The 1.0 metre (3.3 feet) total length with miniature coaxial ClickLoc connector simplifies installation in confined spaces.
Installation Guidance for the 3300 XL Probe
When installing the 330101-00-44-10-02-CN, ensure the mounting hole is tapped to 3/8-24 UNF thread. The recommended gap setting for radial vibration is -9 Vdc, approximately 1.27 mm (50 mils). Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) three-conductor shielded triad cable, with a maximum length of 305 meters (1,000 feet) between the probe and the monitor. The patented TipLoc and CableLoc designs provide 330 N (75 lbf) pull strength for secure attachment.
Maintenance and Reliability Considerations
Inspect the probe cable and connector periodically for damage. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring. Avoid exposing the probe to temperatures below –34°C (–30°F) to prevent premature failure of the pressure seal. The probe case is made from AISI 303 or 304 stainless steel for corrosion resistance.
Compatibility and System Integration
This probe is part of the 3300 XL series and works with compatible Bently Nevada extension cables and Proximitor sensors. The standard incremental scale factor of 7.87 V/mm (200 mV/mil) ensures interchangeability within ±5% for 1 or 5 meter systems. For extended temperature range applications, the deviation from best fit straight line remains less than ±0.038 mm (±1.5 mil).
Purchasing Advice from AutoDCSTech
Before ordering the 330101-00-44-10-02-CN, verify your system requirements including cable length and connector type. Contact our team for assistance with compatibility or to confirm lifecycle status.
Availability & Condition at AutoDCSTech
| Part Number | 330101-00-44-10-02-CN |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
