Description
Bently Nevada 330909-00-80-10-02-05 3300 XL 11 mm Proximity Probe
Product Specific Information
The Bently Nevada 330909-00-80-10-02-05 is a high-performance 3300 XL series 11 mm Proximity Probe. Engineered for non-contact measurement of shaft radial vibration, axial position (thrust), and speed (Keyphasor®) on large rotating machinery, it is a core sensor within the Bently Nevada machinery protection ecosystem. Its 11mm diameter provides a larger sensing area and extended linear range compared to standard 8mm probes, making it particularly suitable for heavy-duty industrial applications with larger shaft diameters and greater required measurement ranges, such as in hydroelectric turbines, large compressors, and heavy industrial fans.
330909-00-80-10-02-05
Primary Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Full Part Number | 330909-00-80-10-02-05 |
| Product Series | 3300 XL |
| Probe Tip Diameter | 11 mm |
| Overall Case Length | 80 mm (as indicated by the “-80-” segment in the part number) |
| Total Integral Cable Length | 1.0 meter / 3.3 feet (as indicated by the “-10-” segment) |
| Connector Type | Miniature coaxial ClickLoc™ connector, standard cable (as indicated by the “-02-” segment) |
| Agency Approval | 00 (Not Required) |
| Linear Range | Typically 0 to 4.0 mm (0 to 160 mils) or greater, depending on the specific Proximitor® pairing. |
| Sensitivity | Approximately 7.87 V/mm (200 mV/mil) when used with a compatible 3300 XL 11 mm Proximitor®. |
| Operating Temperature | -35°C to +177°C (-31°F to +350°F) for standard models. |
| Cable Specification | 75 Ω triaxial, fluoroethylene propylene (FEP) insulated. |
| Compatibility | Requires a mating 3300 XL 11 mm Proximitor® Sensor (e.g., 330180-90-00) and is fully compatible with Bently Nevada 3500 Series monitors (e.g., 3500/42M, 3500/32M). |
Typical Applications
This probe is deployed in applications demanding robust sensing and extended measurement range:
- Hydroelectric Turbines: Monitoring radial vibration and shaft runout on large-diameter generator shafts.
- Heavy-Duty Centrifugal Compressors: For axial thrust position and vibration monitoring in refinery and petrochemical service.
- Large Induced Draft (ID) / Forced Draft (FD) Fans: In power plants for condition monitoring of critical fan shafts.
- Large Paper Machine Rolls: Monitoring vibration and deflection in pulp and paper manufacturing.
- Marine Propulsion Shafts: For onboard monitoring of main propulsion line alignment and vibration.
Technical Pitfalls to Avoid
- Incorrect Proximitor Pairing: An 11 mm probe must be used with an 11 mm Proximitor® (e.g., 330180-90-00). Using it with an 8 mm Proximitor will result in incorrect calibration, inaccurate readings, and potential system malfunction. Always verify Proximitor compatibility.
- Improper Gap Setting: The mechanical gap (air gap) is critical. For an 11 mm probe, the recommended gap is typically larger than for an 8 mm probe. Always set the gap to the exact value specified in the machinery OEM’s documentation or Bently Nevada’s installation guide using a proper gap setting tool.
- Mounting Rigidity & Alignment: Due to its larger size and mass, ensuring a rigid, vibration-free mounting and perfect perpendicular alignment to the shaft surface is even more crucial to prevent false vibration signals.
- Cable Handling: The integral cable, while robust, must not be subjected to sharp bends (maintain minimum bend radius), excessive pulling, or crushing. Poor cable management is a leading cause of field failures.
- Target Surface Condition: The shaft surface must be clean, smooth, concentric, and free of magnetic properties (for standard probes). Any irregularities (scratches, gouges, rust) or coatings will adversely affect measurement accuracy.
Related Model Recommendations
For a complete monitoring loop, consider these related components from the Bently Nevada system:
- Compatible Proximitor® Sensor: 330180-90-00 – The standard 3300 XL 11 mm Proximitor® required to power the probe and condition its signal.
- Extension Cable: 330130-040-00-00 (or appropriate length) – Triaxial extension cable to connect the probe’s ClickLoc™ connector to the Proximitor located in the junction box.
- Monitor Module: 3500/42M-01-00-00-00 – 4-Channel Vibration Monitor for processing the vibration signal in a 3500 Series rack.
- Alternative Probe Size (8mm): 330103-00-05-10-02-00 – The standard 3300 XL 8 mm probe for applications with smaller shafts or space constraints.
- System Power & Communication: 3500/15 Redundant Power Supply & 3500/92 Communication Gateway for a fully integrated machinery protection system.
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