Product Overview
The Bently Nevada 330101-29-50-10-02-05 is a 3300 XL 8 mm Probe designed for precise vibration and displacement measurement in rotating machinery. This industrial automation module features a 3/8-24 UNF thread, unthreaded length of 2.9 inches, overall case length of 5.0 inches, and a total length of 1.0 meter (3.3 feet). It comes with a miniature coaxial ClickLoc connector and standard cable, and carries CSA, ATEX, and IECEx approvals.
Engineered with patented TipLoc and CableLoc technologies, this probe delivers exceptional durability. The TipLoc molding method creates a robust bond between the probe tip and body, while the CableLoc design provides 330 N (75 lbf) pull strength. For applications where oil or liquid leakage is a concern, an optional FluidLoc cable option prevents such leaks through the cable interior.
The 8 mm probe design features a thicker encapsulation of the probe coil in molded PPS plastic, resulting in a more rugged probe. The larger diameter of the probe body provides a stronger, more robust case, making it ideal for harsh industrial environments.
Technical Specifications
This table lists the key technical parameters for the 330101-29-50-10-02-05:
| Parameter |
Value |
| Unthreaded Length |
2.9 in |
| Overall Case Length |
5.0 in |
| Total Length |
1.0 meter (3.3 feet) |
| Connector Type |
Miniature coaxial ClickLoc connector |
| Approvals |
CSA, ATEX, IECEx |
| Nominal Probe DC Resistance (RPROBE) |
7.59 Ω ± 0.50 Ω |
| Extension Cable Capacitance |
69.9 pF/m (21.3 pF/ft) typical |
| Linear Range |
2 mm (80 mils), from 0.25 to 2.3 mm |
| Recommended Gap Setting for Radial Vibration |
-9 Vdc [approximately 1.27 mm (50 mils)] |
| Incremental Scale Factor (ISF) – Standard 5 or 1 meter System |
7.87 V/mm (200 mV/mil) ± 5% |
| Deviation from Best Fit Straight Line (DSL) – Standard 5 or 1 meter |
Less than ±0.025 mm (±1 mil) |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel |
| Probe Operating/Storage Temperature (Standard) |
-52°C to +177°C (-62°F to +350°F) |
| Probe Pressure Sealing |
Viton® O ring; designed for differential pressure |
| Relative Humidity |
Less than 3% change in ASF at 93% humidity per IEC 68-2-3 |
| Thread Engagement Limits |
Maximum 0.563 in for 3/8-24 thread |
| Probe Case Torque (Standard forward mounted) |
Max 33.9 N•m (300 in•lbf); Recommended 11.2 N•m (100 in•lbf) |
| Probe Case Torque (First three threads) |
Max 22.6 N•m (200 in•lbf); Recommended 7.5 N•m (66 in•lbf) |
Performance and Reliability
The 330101-29-50-10-02-05 delivers consistent performance across a wide temperature range. Its linear range of 2 mm (80 mils) begins at approximately 0.25 mm (10 mils) from the target, ensuring accurate measurements from -1 to -17 Vdc. The incremental scale factor of 7.87 V/mm (200 mV/mil) with ±5% interchangeability error guarantees precise readings in standard conditions.
This probe is designed for long-term reliability. The PPS probe tip and stainless steel case resist harsh environments, while the Viton® O-ring provides effective pressure sealing. The probe's robust construction minimizes maintenance needs, reducing downtime and total cost of ownership.
Installation and Setup
Proper installation is critical for optimal performance. When mounting the 330101-29-50-10-02-05, follow these guidelines:
- Ensure the target surface is clean and free of debris.
- Maintain the recommended gap setting of -9 Vdc (approximately 1.27 mm) for radial vibration measurement.
- Use the specified torque values: 11.2 N•m (100 in•lbf) for standard mounting, and 7.5 N•m (66 in•lbf) for the first three threads.
- For field wiring, use 0.2 to 1.5 mm² (16 to 24 AWG) three-conductor shielded triad cable with tinned wiring. Maximum length between the Proximitor Sensor and monitor is 305 meters (1,000 feet).
Maintenance and Troubleshooting
Regular inspection of the probe and cable ensures long service life. Check for physical damage, especially at the probe tip and cable connections. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature failure of the pressure seal.
If readings become erratic, verify the gap setting and cable integrity. Confirm that the probe is not hitting the target. For applications with high humidity, the probe's design meets IEC 68-2-3 standards, ensuring minimal scale factor drift.
Selection and Purchasing Guide
When selecting a replacement or new probe, verify the exact model number 330101-29-50-10-02-05 to ensure compatibility with your system. Consider your environmental conditions and required approvals. PLC Source PRO offers genuine Bently Nevada parts with fast shipping and competitive pricing. Contact our team for assistance with your specific application.