Product Overview
When vibration monitoring systems fail due to probe degradation, the Bently Nevada 330709-000-040-10-01-05 provides a reliable, high-performance solution. This 3300 XL 11 mm Proximity Probe is designed for precise shaft displacement and position measurements in critical rotating machinery. Manufactured in the USA, this model features a robust M16x1.5 threaded case, a 1.0-meter triaxial cable with miniature coaxial ClickLoc connector and connector protector, and multiple agency approvals for global compliance.
Technical Specifications
The Bently Nevada 330709-000-040-10-01-05 delivers consistent performance under demanding conditions. Key parameters from the manufacturer include:
| Parameter |
Value |
| Probe Type |
3300 XL 11 mm Proximity Probe |
| Thread Size |
M16x1.5 |
| Unthreaded Length |
0 mm |
| Overall Case Length |
40 mm |
| Total Probe Length |
1.0 meter (3.3 ft) |
| Connector Type |
Miniature coaxial ClickLoc with connector protector, standard cable |
| Agency Approval |
Multiple Approvals (Option 05) |
| Probe DC Resistance (Center to Outer Conductor) |
5.9 ± 0.5 ohms |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Cable Specification |
75 Ω triaxial, FEP insulated |
| Probe Case Torque (M16x1.5) - Maximum Rated |
63.3 N·m (560 in·lb) |
| Probe Case Torque (M16x1.5) - Recommended |
21.1 N·m (187 in·lb) |
| Connector-to-Connector Torque - Recommended |
Finger tight |
| Connector-to-Connector Torque - Maximum |
0.565 N·m (5 in·lb) |
| Minimum Bend Radius (with or without armor) |
25.4 mm (1.0 in) |
| Operating and Storage Temperature Range |
-52°C to +177°C (-62°F to +351°F) |
| Temperature Classification (EPL Ga/Gc) |
T1 to T5 |
| Cross-talk Limitation - Minimum Flat Surface Diameter |
30.5 mm (1.2 in) |
| Cross-talk Limitation - Minimum Shaft Diameter |
152 mm (6.0 in) |
| Maximum Length of Thread Engagement |
24 mm |
Common Failure Modes and This Probe’s Solutions
The Bently Nevada 330709-000-040-10-01-05 addresses typical failure modes in proximity probes:
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Cable Damage: The triaxial FEP-insulated cable resists harsh environments and the ClickLoc connector ensures a secure connection, reducing signal loss.
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Thermal Stress: With a wide operating range of -52°C to +177°C, this probe withstands extreme temperatures, preventing premature seal failure (note: avoid sustained exposure below -34°C to maintain seal integrity).
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Connector Corrosion: The connector protector shields the miniature coaxial ClickLoc from moisture and debris, extending service life.
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Thread Galling: The M16x1.5 stainless steel case is torqued to recommended values (21.1 N·m) to avoid damage during installation.
Installation and Setup Guidance
Proper installation of the Bently Nevada 330709-000-040-10-01-05 ensures accurate readings. Follow these guidelines:
- Thread the probe into the mounting hole using the recommended torque of 21.1 N·m (187 in·lb). Do not exceed 63.3 N·m.
- Hand-tighten the connector to finger tight, then apply a maximum of 0.565 N·m to secure.
- Maintain a minimum bend radius of 25.4 mm for the cable to prevent internal damage.
- Ensure the target surface (flat or shaft) meets the cross-talk limitations: flat surface diameter ≥30.5 mm, shaft diameter ≥152 mm.
- For threaded engagement, do not exceed 24 mm of thread length.
Maintenance and Reliability
Routine inspection of the Bently Nevada 330709-000-040-10-01-05 focuses on cable integrity, connector cleanliness, and probe tip condition. The PPS tip resists chemical attack and temperature fluctuations. Given the wide temperature classification (T1 to T5), the probe suits gas and dust environments. Check the connector protector for cracks or debris annually. The stainless steel case offers corrosion resistance, but verify the mounting threads are free of galling during each replacement. Reliable operation reduces unplanned downtime in turbines, compressors, and pumps.
Troubleshooting Common Issues
If the Bently Nevada 330709-000-040-10-01-05 provides erratic readings, consider:
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Incorrect Gap: Verify the probe gap is within the recommended range for your system (typically 0.5–2.0 mm for 11 mm probes).
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Damaged Cable: Inspect the 1.0m cable for kinks or cuts. The FEP insulation can be damaged if bent below the minimum radius.
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Connector Issues: Loose ClickLoc connectors cause intermittent signals. Retorque to finger tight plus 0.565 N·m maximum.
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Temperature Drift: At extreme low temperatures (below -34°C), the pressure seal may fail prematurely. Pre-warm the probe if exposure is unavoidable.
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Cross-talk: Ensure the target is sufficiently large (flat ≥30.5 mm, shaft ≥152 mm) to avoid interference from nearby probes.
Selection Guide and Purchasing Advice
When ordering a replacement, verify that your control system requires a 3300 XL 11 mm probe with M16x1.5 thread and 1.0m cable. The Bently Nevada 330709-000-040-10-01-05 includes the ClickLoc connector and multiple approvals, making it suitable for most industrial applications. UBEST Automation stocks genuine Bently Nevada parts; contact us to confirm compatibility with your existing monitoring system.