Product Overview
The Bently Nevada 330707-00-62-90-11-00 is a precision-engineered 3300 XL 11 mm Proximity Probe designed for reliable shaft displacement and vibration monitoring in critical rotating machinery. This probe features a polyphenylene sulfide (PPS) tip and a robust AISI 304 stainless steel case, ensuring durability in harsh industrial environments. With a 5/8-18 UNF thread and a 9.0-meter miniature coaxial ClickLoc connector with FluidLoc cable, it provides accurate data transmission and easy installation. The probe is built to withstand extreme temperatures from -51°C to +177°C and is suitable for applications in turbines, compressors, and pumps.
Technical Specifications Breakdown
Below are the key specifications for the Bently Nevada 330707-00-62-90-11-00 3300 XL 11 mm Proximity Probe:
| Parameter |
Value |
| Unthreaded Length Option |
00 = 0 in |
| Overall Case Length Option |
62 = 6.2 in |
| Total Length Option |
90 = 9.0 meters (29.5 feet) |
| Connector and Cable-Type Option |
11 = Miniature coaxial ClickLoc connector with connector protector, FluidLoc cable |
| Agency Approval Option |
00 = Not required |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Probe Cable Specification |
75 Ω triaxial, fluoroethylene propylene (FEP) insulated, available in 1, 5, or 9 meters |
| Operating and Storage Temperature |
-51°C to +177°C (-60°F to +351°F) |
| Probe Pressure Seal |
Viton O-ring (not pressure tested prior to shipment) |
| Shipping Weight |
0.17 kg |
| Probe DC Resistance (9m length) |
8.5 ± 1.1 ohms (center to outer conductor) |
| Probe Case Thread |
5/8-18 UNF |
| Maximum Length of Thread Engagement (5/8-18) |
0.938 in (23.8 mm) |
| Probe Case Torque (Maximum) |
45.2 N·m (400 in·lb) |
| Probe Case Torque (Recommended) |
15.2 N·m (133 in·lb) |
| Connector-to-Connector Torque (Recommended) |
Finger tight |
| Connector-to-Connector Torque (Maximum) |
0.565 N·m (5 in·lb) |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Probe Case Thread (M16x1.5) |
Maximum thread engagement 24 mm |
| Probe Case Thread (M14x1.5) |
Maximum thread engagement 21 mm |
These specifications ensure precise and reliable performance in vibration monitoring applications. The 330707-00-62-90-11-00 offers a robust mechanical design and consistent electrical characteristics for accurate gap measurements.
Industry Applications
The Bently Nevada 330707-00-62-90-11-00 3300 XL 11 mm Proximity Probe is widely used in the following applications:
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Steam and Gas Turbines: Monitors shaft vibration and axial position to prevent catastrophic failures.
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Centrifugal Compressors: Detects radial and axial displacement under high-speed operating conditions.
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Large Pumps and Motors: Ensures continuous monitoring of shaft dynamics, reducing unplanned downtime.
Its wide temperature tolerance and durable construction make it suitable for both indoor and outdoor installations in oil & gas, power generation, and petrochemical plants.
Installation & Setup Guidance
Proper installation is critical to achieving accurate readings from the Bently Nevada 330707-00-62-90-11-00. Follow these guidelines:
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Thread Engagement: For the 5/8-18 UNF thread, do not exceed the maximum thread engagement of 0.938 inches to avoid damaging the probe.
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Torque Application: Use the recommended torque of 15.2 N·m (133 in·lb) when tightening the probe case. Never exceed 45.2 N·m (400 in·lb).
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Cable Routing: Maintain a minimum bend radius of 25.4 mm (1.0 in) to prevent cable damage and signal degradation.
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Connector Handling: Tighten the miniature coaxial ClickLoc connector finger tight only; maximum torque is 0.565 N·m (5 in·lb).
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Temperature Precautions: If operating below -34°C (-30°F), note the risk of premature pressure seal failure. Ensure the probe tip temperature stays within the rated range.
Always verify the gap setting after installation using a gap simulator or calibration fixture.
Maintenance & Reliability
To maximize the service life of the Bently Nevada 330707-00-62-90-11-00 3300 XL 11 mm Proximity Probe, follow these maintenance practices:
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Inspect Cable and Connectors: Check for cuts, abrasions, or corrosion on the FluidLoc cable and ClickLoc connector.
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Monitor Seal Integrity: The Viton O-ring pressure seal is critical. Avoid exposing the probe to rapid temperature changes that could compromise the seal.
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Clean Probe Tip: Accumulation of debris or oil on the PPS tip can affect measurement accuracy. Clean gently with isopropyl alcohol.
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Periodic Calibration Check: Verify DC resistance (8.5 ± 1.1 ohms for the 9m probe) as a quick health check.
The probe’s stainless steel case provides excellent corrosion resistance, contributing to long-term reliability in demanding environments.
Selection Guide & Purchasing Advice
When ordering the Bently Nevada 330707-00-62-90-11-00, confirm the following:
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Total Length: The “90” option indicates 9.0 meters total length (probe + cable). Ensure this matches your installation distance.
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Connector Type: The “11” option includes a miniature coaxial ClickLoc connector with connector protector and FluidLoc cable – verify compatibility with your extension cable or monitor.
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Agency Approval: The “00” option means no special agency approval; if your site requires ATEX or IECEx, contact UBEST Automation for alternative configurations.
UBEST Automation stocks genuine Bently Nevada parts and can assist with matching the correct probe assembly to your system.