Technical Specifications Breakdown
Key parameters for the 330101-00-77-20-02-05 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 | 00 = 0.0 in |
| Overall Case Length Option | 77 = 7.7 in |
| Total Length Option | 20 = 2.0 meters (6.6 feet) |
| Connector and Cable-Type Option | 02 = Miniature coaxial ClickLoc connector, standard cable |
| Approvals | 05 = CSA, ATEX, IECEx |
| Nominal Probe DC Resistance (RPROBE) | 7.88 ± 0.50 Ω (2.0 m length) |
| Linear Range | 2 mm (80 mils), begins at ~0.25 mm (10 mils) from target |
| Incremental Scale Factor (ISF) – Standard 5 or 1 meter System | 7.87 V/mm (200 mV/mil) ± 5% (0°C to +45°C) |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303 or 304 stainless steel (SST) |
| Probe Temperature Range (Standard) | -52°C to +177°C (-62°F to +350°F) |
Industry Applications and Failure Prevention
Its robust 8 mm diameter and PPS tip resist physical abuse, reducing false trips. The patented TipLoc and CableLoc designs provide 330 N (75 lbf) pull strength, preventing cable detachment in high-vibration environments. By delivering accurate 7.87 V/mm scale factor, it enables early detection of bearing wear or imbalance.

Installation and Setup Guidance
Mount the probe using the 3/8-24 UNF thread into a standard mounting hole. Ensure the target surface is clean and within the linear range (0.25 to 2.3 mm gap). Set the recommended gap to -9 Vdc (approximately 1.27 mm / 50 mils) for radial vibration measurement. Use field wiring of 0.2 to 1.5 mm² (16 to 24 AWG) with a 3-conductor shielded triad cable, keeping the total length between the Proximitor Sensor and monitor under 305 meters (1,000 feet) to avoid signal rolloff.
Maintenance and Reliability
Inspect the probe and cable periodically for physical damage, especially near the tip and connector. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent pressure seal failure. The Viton® O-ring seals differential pressure; if your application requires pressure testing, contact the custom design department. The probe maintains less than 3% change in Average Scale Factor after 56 days at 93% humidity per IEC 68-2-3.
Robust Vibration Monitoring with the Bently Nevada 3300 XL 8 mm Probe
For critical rotating machinery, reliable vibration measurement is non-negotiable. The Bently Nevada 330101-00-77-20-02-05 3300 XL 8 mm Probe delivers the precision and durability required for continuous protection. Its miniature coaxial ClickLoc connector ensures a secure, quick connection, while CSA, ATEX, and IECEx approvals confirm its suitability for hazardous environments.

Compatibility and Integration
This probe works with Bently Nevada 3300 XL extension cables and Proximitor sensors. The miniature coaxial ClickLoc connector ensures a reliable, quick connection without special tools. For 5 or 1 meter systems, the Incremental Scale Factor is 7.87 V/mm ± 5% over 0°C to +45°C; for 9 meter systems, ± 6.5%.
Selection Guide and Purchasing Advice
When ordering, verify the total length (2.0 m) and connector type (ClickLoc) match your system. The 330101-00-77-20-02-05 includes CSA, ATEX, and IECEx approvals for hazardous area use. Please verify current lifecycle status and availability with AutoDCSTech before ordering. AutoDCSTech offers genuine Bently Nevada parts with fast shipping and expert support.
Availability & Condition at AutoDCSTech
| Part Number | 330101-00-77-20-02-05 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
