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- Bently Nevada
- 330709-000-050-10-02-05
- 3300 XL 11mm Proximity Probe
- USA
- 50 mm
- 2kg
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Bently Nevada 330709-000-050-10-02-05 Proximity Probe
1. Product Overview
The Bently Nevada 330709-000-050-10-02-05 belongs to the 3300 XL 11 mm proximity probe family. It is an industrial non-contact sensor designed to measure the relative movement of a conductive target, typically a rotating shaft in machinery equipped for proximity-probe monitoring.
The probe is intended for use as part of a compatible measurement system. Its signal can be used to monitor shaft vibration, displacement, and other forms of relative movement when the probe is installed at an appropriate measurement point and paired with the required signal-conditioning electronics.
This model’s part number identifies a configuration with an M16 × 1.5 mounting thread, a 50 mm case-length option, a 5.0 m cable, a miniature ClickLoc coaxial connector, and an approval-related suffix. These configuration details are important when selecting a replacement, because two probes from the same product family may not have identical mechanical dimensions or electrical compatibility.
The probe itself is not a complete machinery protection system. It supplies the measurement signal; compatible electronics and monitoring equipment are required to process, display, and interpret that signal.
2. Brand and Product Series
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product series | 3300 XL 11 mm |
| Model | 330709-000-050-10-02-05 |
| Product category | Industrial proximity probe |
| Sensing technology | Eddy-current proximity sensing |
| Primary function | Non-contact shaft displacement and vibration measurement |
| Mounting thread | M16 × 1.5 |
| Case-length option | 50 mm |
| Cable length | 5.0 m |
| Connector | Miniature ClickLoc coaxial connector |
| Cable configuration | Standard cable configuration |
| Approval suffix | 05; exact approval coverage should be checked against the supplied product documentation |
| Typical system role | Sensor input for a compatible machinery monitoring loop |
3. Detailed Technical Parameters
The following table separates the model’s identifiable configuration from details that require confirmation against the exact mechanical drawing or product documentation.
| Parameter | Specification |
|---|---|
| Model | 330709-000-050-10-02-05 |
| Brand | Bently Nevada |
| Series | 3300 XL 11 mm |
| Sensor type | Non-contact proximity probe |
| Measurement principle | Eddy-current sensing |
| Thread size | M16 × 1.5 |
| Unthreaded-length option | 0 mm |
| Case-length option | 50 mm |
| Cable length | 5.0 m |
| Connector type | Miniature ClickLoc coaxial |
| Cable configuration | Standard cable |
| Approval configuration | Suffix 05; confirm the exact applicable approvals for the supplied unit |
| Probe-tip material | PPS is used in this probe family; verify the exact specification for the supplied unit |
| Case material | Stainless steel is used in this probe family; verify the exact specification for the supplied unit |
| Cable construction | Confirm the exact cable specification against the model documentation |
| Measurement target | Suitable conductive surface |
| Primary measurement | Relative shaft displacement and vibration, subject to installation design |
| Sensitivity | Must be verified for the complete compatible probe, cable, and signal-conditioning system |
| Linear measurement range | Must be verified against the applicable system specification |
| Operating temperature | Confirm the rated limits for the exact probe and measurement-loop configuration |
| Probe dimensions | M16 × 1.5 thread; 50 mm case-length option; other dimensions require the mechanical drawing |
| Cable dimensions | 5.0 m cable length; cable diameter and connector dimensions require the product drawing |
| Package dimensions | Not confirmed for this exact part number |
| Product weight (kg) | Not confirmed for this exact configuration |
| Shipping weight (kg) | Not confirmed; depends on packaging and any included accessories |
| Calibration | Must match the compatible measurement-loop requirements |
| Typical installation | Suitable industrial rotating machinery with an approved proximity-probe mounting arrangement |
Important note about dimensions and weight: the 50 mm value is the case-length option, while 5.0 m refers to the cable length. They describe different parts of the assembly. The exact overall dimensions and weight should not be estimated from these two values, particularly where the information will be used for a technical drawing, shipping quotation, or formal procurement specification.
4. Important Model-Code Clarification
The cable-length field in this model is 10, which denotes a 1.0 m total cable length. The 50 mm value is the case-length option. These two figures describe different parts of the assembly.
| Code segment | Meaning | Value |
|---|---|---|
| 330709 | Probe model family | 3300 XL 11 mm, M16 × 1.5 thread |
| 000 | Unthreaded-length option | 0 mm |
| 050 | Case-length option | 50 mm |
| 10 | Total cable-length option | 1.0 m |
| 02 | Connector and cable option | Miniature coaxial ClickLoc connector, standard cable |
| 05 | Approval option | Multiple approvals |
5. Product Introduction and Operating Principle
The probe uses eddy-current sensing to detect changes in the distance between its sensing tip and a conductive target. In a typical installation, the target is a rotating shaft or another machine component whose movement needs to be monitored.
The probe forms part of a measurement loop that includes compatible signal-conditioning electronics. As the target moves, the electrical characteristics of the sensing circuit change. The associated electronics convert this change into a usable measurement signal.
Depending on the installation, the resulting signal can support measurements of shaft vibration, relative displacement, axial position, or other machine movement. Monitoring equipment can display these values, compare them with configured limits, and record trends over time.
The probe does not identify the cause of a mechanical problem on its own. For example, an increase in shaft vibration might be associated with imbalance, misalignment, bearing changes, or other operating conditions. Engineers interpret the measurement alongside machine speed, load, temperature, and other diagnostic information.
6. Main Product Advantages
Non-contact measurement
The probe measures movement without needing to touch the target during normal operation. This makes it suitable for installations where the shaft rotates at high speed and continuous measurement is required.
Defined mechanical configuration
The M16 × 1.5 thread and 50 mm case-length option provide specific mechanical dimensions for compatible mounting arrangements. This helps when selecting a replacement for an existing installation.
Practical cable arrangement
The 1.0 m cable configuration can suit installations where the distance between the probe and its connection point is relatively short. The actual cable route must still meet the system’s installation requirements.
Compatibility with a monitoring system
When paired with the correct signal-conditioning hardware, the probe can supply measurement data for machinery monitoring and protection. The probe should not be treated as interchangeable with another model solely because the connector looks similar.
Support for maintenance planning
Continuous measurements can help maintenance teams identify changes from a machine’s normal operating pattern. This supports condition-based inspection and can help teams investigate potential problems before they develop into more serious faults.
7. Applications
| Application | Typical monitoring purpose | Important consideration |
|---|---|---|
| Steam turbines | Shaft vibration and relative shaft position | Confirm target location and measurement range |
| Gas turbines | Shaft movement monitoring | Verify environmental and system requirements |
| Centrifugal compressors | Shaft displacement and vibration | Match the probe to the installed measurement loop |
| Industrial pumps | Shaft movement at suitable bearing locations | Confirm the machine is designed for proximity sensing |
| Generator sets | Rotor movement monitoring | Check mounting geometry and target material |
| Axial-position monitoring | Detect relative axial shaft movement | Use a mounting arrangement designed for axial measurement |
| Specialized displacement monitoring | Monitor movement of selected machine components | Confirm that the probe’s range and calibration suit the application |
The model is most appropriate when the machine design, mounting geometry, and compatible electronics have been selected for the intended measurement. Its part number alone does not establish suitability for every machine or every measurement type.
8. Five Related Models
The following models provide useful comparison points within the same probe family. The listed configuration details are intended to help distinguish the models; confirm each complete part number before ordering.
| Model | Product type | Key parameters | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330709-000-050-10-02-00 | 3300 XL 11 mm proximity probe | 50 mm case; 1.0 m cable; ClickLoc connector; no optional agency approvals requested | M16 × 1.5 thread; 50 mm case; 1.0 m cable | Approx. 0.18 kg listed for a related configuration; exact unit weight unconfirmed |
| 330709-000-050-50-02-05 | 3300 XL 11 mm proximity probe | 50 mm case; 5.0 m cable; ClickLoc connector; multiple approvals | M16 × 1.5 thread; 50 mm case; 5.0 m cable | Not verified |
| 330709-000-050-10-12-05 | 3300 XL 11 mm proximity probe | 50 mm case; 1.0 m cable; FluidLoc cable configuration; multiple approvals | M16 × 1.5 thread; 50 mm case; 1.0 m cable | Not verified |
| 330709-000-040-10-02-05 | 3300 XL 11 mm proximity probe | 40 mm case; 1.0 m cable; ClickLoc connector; multiple approvals | M16 × 1.5 thread; 40 mm case; 1.0 m cable | Not verified |
| 330709-000-060-10-02-05 | 3300 XL 11 mm proximity probe | 60 mm case; 1.0 m cable; ClickLoc connector; multiple approvals | M16 × 1.5 thread; 60 mm case; 1.0 m cable | Not verified |
These alternatives differ in case length, cable length, cable construction, or approval configuration. A replacement should be selected by matching the installation requirements, not simply by choosing a model from the same series.
9. Five Other Common Models from the Same Brand
The following models are used in related machinery monitoring applications. They perform different functions, so they should not be considered direct substitutes for the target probe.
| Model | Product type | Main function or configuration | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330180-50-00 | Proximitor sensor | Signal-conditioning component for a compatible proximity measurement loop | Exact enclosure dimensions require the applicable drawing | Not verified |
| 330130-040-00-00 | Extension cable | Extension cable for compatible proximity measurement components | Exact cable length and connector dimensions require confirmation | Not verified |
| 330104-00-05-10-02-00 | Proximity probe | Related probe configuration; verify its thread, case length, cable length, and suffix | Exact dimensions require the model drawing | Not verified |
| 330101-00-40-10-02-00 | Proximity probe | Related probe model for compatible machinery measurement installations | Exact dimensions require the model drawing | Not verified |
| 3500/42M | Machinery monitoring module | Vibration and position monitoring in a compatible rack-based system | Confirm module and rack installation dimensions | Not verified |
These models represent different parts of a monitoring arrangement. A probe detects movement at the target, a Proximitor sensor conditions the signal, and a monitoring module processes the measurement according to its configured function.
10. Dimensions and Weight for Purchasing
The dimensions and weight should be recorded carefully when preparing a purchase order, installation plan, or shipping request.
| Item | Value |
|---|---|
| Model | 330709-000-050-10-02-05 |
| Mounting thread | M16 × 1.5 |
| Unthreaded length | 0 mm |
| Case length | 50 mm |
| Cable length | 1.0 m |
| Connector | Miniature coaxial ClickLoc |
| Listed overall/package dimensions | Approximately 2.4 × 2.3 × 118 cm in one listing; confirm what the dimensions represent before use |
| Listed product weight | Approximately 0.14 kg in one listing |
| Shipping weight | May be different from the probe’s own weight; confirm with the supplier |
| Final dimensional verification | Use the mechanical drawing for the exact supplied configuration |
The dimensional figures above should be treated as approximate listing information, not a substitute for an engineering drawing. Likewise, product weight and shipping weight should be kept separate because packaging and accessories can change the gross shipment weight.
11. Installation and Maintenance
Before installation, verify the complete part number and compare it with the existing equipment record. Check the mounting thread, case length, cable length, connector arrangement, and required approval configuration.
The probe should be installed securely and positioned toward the intended conductive target. The initial gap must be set according to the instructions for the compatible measurement loop; an arbitrary gap setting can lead to incorrect measurements or an unusable signal.
During commissioning, check the measurement signal and compare it with the expected operating condition. Ensure the cable is properly routed and protected from sharp bends, crushing, tension, and avoidable sources of electrical interference.
For routine maintenance, inspect the probe body, cable jacket, connector, and mounting hardware. If the signal becomes unstable, check the probe installation, connector, cable, signal conditioner, and target condition before concluding that the probe itself has failed.
12. Procurement Checklist
13. Conclusion
The Bently Nevada 330709-000-050-10-02-05 is a 3300 XL 11 mm proximity probe configuration with an M16 × 1.5 mounting thread, a 50 mm case-length option, a 1.0 m cable, a miniature ClickLoc coaxial connector, and a multiple-approval suffix.
Its main role is to provide non-contact displacement measurements in a compatible machinery monitoring system. Depending on the machine design and probe installation, those measurements can support shaft vibration, relative displacement, and axial-position monitoring.
The most important selection criteria are the complete part number, mechanical dimensions, cable configuration, approval requirements, and compatibility with the installed measurement loop. For formal engineering or shipping documentation, use the applicable product drawing and confirm the exact supplied unit’s weight and package dimensions rather than relying solely on approximate listing figures.