Robust Vibration Monitoring with the 3300 XL 8 mm Probe
In rotating machinery protection, sensor reliability is non-negotiable. The Bently Nevada 330101-01-39-10-01-05 3300 XL 8 mm probe delivers the ruggedness and precision required for critical asset monitoring. Designed with a thicker encapsulation of the probe coil in molded PPS plastic, this probe offers enhanced durability against physical abuse compared to smaller diameter alternatives.
Technical Specifications Breakdown
Key parameters for the 330101-01-39-10-01-05 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Product Type | 3300 XL 8 mm Probe, 3/8-24 UNF thread, without armor |
| Unthreaded Length Option | 01 - 0.1 in |
| Overall Case Length Option | 39 - 3.9 in |
| Total Length Option | 10 - 1.0 metre (3.3 feet) |
| Connector and Cable-Type Option | 02 Miniature coaxial ClickLoc connector, standard cable |
| Approvals | CSA, ATEX, IECEx |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303 or 304 stainless steel (SST) |
| Linear Range | 2 mm (80 mils) from 0.25 to 2.3 mm (10 to 90 mils) |
| Incremental Scale Factor (ISF) - 1 meter System | 7.87 V/mm (200 mV/mil) ± 5% |
| Probe Temperature Range (Standard) | -52°C to +177°C (-62°F to +350°F) |
Industry Applications
Typical applications include:
- Steam and gas turbines: The 2 mm linear range and 7.87 V/mm scale factor provide precise shaft vibration measurement.
- Compressors and pumps: The robust PPS tip and stainless steel case withstand harsh conditions, while the 330 N (75 lbf) CableLoc pull strength ensures reliable cable retention.
- Hydroelectric generators: The optional FluidLoc cable prevents oil leakage through the cable interior, maintaining machine integrity.
Installation & Setup Guidance
When installing the 330101-01-39-10-01-05, follow these engineering best practices:
- Gap setting: For radial vibration, set the recommended gap to -9 Vdc, approximately 1.27 mm (50 mils).
- Field wiring: Use 3-conductor shielded triad cable with tinned wiring, 0.2 to 1.5 mm² (16 to 24 AWG). Maximum cable length between the Proximitor Sensor and monitor is 305 meters (1,000 feet).
- Mounting: The 3/8-24 UNF thread allows secure installation in standard probe mounts. Ensure the probe tip is clean and free of debris before insertion.
Maintenance & Reliability
Regular inspection of the probe and cable is recommended to ensure consistent performance. The probe is designed to seal differential pressure between tip and case using a Viton® O-ring. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure. The probe's relative humidity tolerance is less than 3% change in Average Scale Factor when tested at 93% humidity per IEC 68-2-3 for up to 56 days.
Compatibility & Integration
This probe is part of the 3300 XL system and is compatible with standard 3300 XL extension cables and Proximitor sensors. The miniature coaxial ClickLoc connector ensures a secure, quick connection.
Selection Guide & Purchasing Advice
When selecting a replacement or new probe, verify the thread size (3/8-24 UNF), unthreaded length (0.1 in), and overall case length (3.9 in). The 330101-01-39-10-01-05 is a standard temperature range probe (-52°C to +177°C). For extended temperature applications, consider the ETR variant. AutoDCSTech stocks this exact model with CSA, ATEX, and IECEx approvals, ensuring compliance for hazardous area installations. Please verify current lifecycle status and availability with AutoDCSTech before ordering.


Availability & Condition at AutoDCSTech
| Part Number | 330101-01-39-10-01-05 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
