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- Bently Nevada
- 330730-080-03-05
- 3300 XL 11mm Extension Cable
- USA
- 8.0 m
- 1kg
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Bently Nevada 330730-080-03-05 Extension Cable: Technical Specifications, Product Description, Applications, Advantages, and Related Models
1. Product Overview
The Bently Nevada 330730-080-03-05 is a model associated with the 3300 XL 11 mm proximity transducer system. Extension cables in this product family connect a compatible proximity probe to a compatible Proximitor sensor, forming part of the signal path used for shaft vibration and displacement monitoring.
The model is identified by a nominal cable length of 8.0 m (approximately 26.2 ft). The 03 option is associated with an armored cable configuration with connector protectors. The 05 suffix is an approval-related option and should be checked against the precise ordering specification for the supplied part before relying on any particular certification.
This is a specialized instrumentation cable rather than a general-purpose electrical cable. Its correct length, construction, connector configuration, and compatibility with the probe and sensor are important to the performance of the complete measurement system.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Model | 330730-080-03-05 |
| Brand | Bently Nevada |
| Product series | 3300 XL 11 mm |
| Product category | Proximity transducer extension cable |
| Primary function | Connects a compatible proximity probe to a compatible Proximitor sensor |
| Nominal cable length | 8.0 m |
| Equivalent length | Approximately 26.2 ft |
| Cable construction | Armored configuration associated with option 03 |
| Connector protection | Connector protectors associated with option 03 |
| Approval option | 05; exact applicable approvals must be confirmed against the ordering specification |
| Typical system application | Shaft vibration, displacement, and relative-position measurement |
| System compatibility | Must match the probe, extension cable, and Proximitor sensor combination |
| Electrical construction | Specialized measurement cable; verify the exact conductor and shielding specification for this configuration |
| Nominal impedance | Confirm against the applicable part-specific specification |
| Capacitance | Confirm against the applicable part-specific specification |
| Insulation material | Confirm against the applicable part-specific specification |
| Operating temperature | Confirm the allowable range for the exact supplied configuration |
| Cable dimensions | Nominal length: 8.0 m; cable diameter and connector dimensions require the product drawing |
| Overall assembly dimensions | Depend on cable routing, connector design, and supplied accessories |
| Net weight | Not reliably confirmed for this exact configuration |
| Weight unit | kg |
| Packaging dimensions | Not confirmed for this exact configuration |
| Packaging weight | Not confirmed for this exact configuration |
| Typical installation | Industrial machinery instrumentation systems |
| Replacement requirement | Match the complete part number and confirm system compatibility |
Dimensional and weight note: The 8.0 m cable length is the nominal length indicated by the model code. It is not the package length or the overall dimensions of a coiled cable assembly. A verified net weight in kilograms is not available for this exact configuration, so a precise figure should not be invented for purchasing, shipping, or engineering documentation.
3. Model Number Breakdown
| Code | Meaning | Notes |
|---|---|---|
| 330730 | 3300 XL 11 mm extension-cable model family | Identifies the cable family |
| 080 | 8.0 m cable-length option | Approximately 26.2 ft |
| 03 | Armored cable with connector protectors | Provides additional mechanical protection |
| 05 | Multiple agency approval option | Confirm the specific approvals required for the installation |
The 05 suffix indicates a multiple-approval option, but the precise certifications applicable to the supplied unit should be checked against its ordering specification. Do not assume that every certification is valid in every country or for every hazardous-area classification.
4. Detailed Product Introduction
The 330730-080-03-05 is an extension cable designed for the 3300 XL 11 mm proximity transducer system. In a typical installation, a proximity probe is mounted near a rotating shaft or other suitable conductive target, while the associated Proximitor sensor is installed at a suitable location nearby.
As the distance between the probe tip and the target changes, the probe system generates a corresponding electrical signal. The extension cable carries that signal to the Proximitor sensor, allowing the complete measurement system to provide information used for machinery condition monitoring.
The cable has a nominal length of 8.0 m, which allows flexibility when routing the connection between the sensing point and the electronics. Its armored construction is intended to provide additional protection against mechanical contact and abrasion, while the connector protectors help shield the connection areas during installation and servicing.
The cable is not a standalone measuring instrument. Its performance depends on correct pairing with the probe and Proximitor sensor, the appropriate total system length, sound connections, and installation in accordance with the equipment requirements.
5. Electrical and Mechanical Specifications
| Parameter | Specification |
|---|---|
| Model | 330730-080-03-05 |
| Cable length | 8.0 m (26.2 ft) |
| Cable type | Armored extension cable |
| Cable construction | 75 Ω triaxial construction |
| Insulation | Fluoroethylene propylene (FEP) |
| Armor material | Flexible AISI 302 stainless steel, with an FEP outer jacket |
| Typical capacitance | 69.9 pF/m (21.3 pF/ft) |
| Center-conductor resistance for 8.0 m | 2.0 ± 0.5 Ω |
| Coaxial-conductor resistance for 8.0 m | 0.6 ± 0.2 Ω |
| Typical armored-cable mass per metre | Approximately 140 g/m |
| Calculated cable mass at 8.0 m | Approximately 1.12 kg, based on the nominal mass per metre |
| Package dimensions | Approximately 20 × 20 × 2 cm in one product listing; not a verified physical cable dimension |
| Exact assembled net weight | Confirm from the supplied unit or its applicable product specification |
| Operating and storage temperature | Approximately −52°C to +177°C; confirm the applicable specification for the supplied configuration |
| Connector configuration | Connector protectors included with option 03 |
| Approval option | 05, multiple approvals; specific certifications to be confirmed |
| Compatible system | Compatible 3300 XL 11 mm proximity probes and Proximitor sensors, subject to the complete system configuration |
The calculated 1.12 kg figure represents an estimate based on the nominal armored-cable mass per metre. Published product listings give inconsistent weights for this model, potentially reflecting differences in how the cable, connectors, accessories, or packaging are weighed. For shipping, inventory, or customs records, use the verified net and gross weights for the actual supplied item.
6. Product Applications
6.1 Shaft vibration monitoring
The cable supports proximity measurement systems used to monitor shaft vibration in rotating machinery. The probe senses changes in the gap between its tip and the shaft, and the connected electronics process the signal for use by the monitoring system.
Such measurements can help maintenance teams identify changes in machine behaviour and investigate possible bearing, rotor, or alignment problems.
6.2 Axial thrust and shaft displacement
In compatible system configurations, proximity measurements can be used to monitor axial shaft position or thrust-related movement. The extension cable provides the required connection between the probe and the Proximitor sensor.
The cable does not independently measure or calculate displacement. Its role is to preserve the required connection within the complete transducer system.
6.3 Turbines and generators
Turbines and generators commonly use permanently installed instrumentation for monitoring critical rotating components. An 8.0 m armored cable may be appropriate where the specified system configuration requires that length and additional physical protection.
The final choice should account for the installed probe, sensor location, cable routing, environmental conditions, and any required approvals.
6.4 Pumps and compressors
Industrial pumps and compressors may operate continuously, making reliable condition-monitoring connections important for maintenance planning. The armored construction can be beneficial in cable routes where incidental contact or abrasion is a concern.
The cable must still be routed correctly and protected from conditions outside its specified environmental limits.
6.5 Reciprocating machinery
Suitable proximity measurement systems can be used for rod-position or related measurements on reciprocating machinery. Whether this exact cable configuration is appropriate depends on the specific probe, sensor, and measurement arrangement.
6.6 Industrial maintenance and replacement
The model can be considered for replacement work where the existing installation calls for the same cable configuration. The full suffix is important because cable length, armor, connector protection, and approval options may differ between otherwise similar models.
7. Main Product Advantages
| Advantage | Practical benefit |
|---|---|
| 8.0 m nominal length | Offers flexibility when connecting a probe and sensor installed at separated locations |
| Armored construction | Provides additional protection against certain forms of mechanical damage and abrasion |
| Connector protectors | Help protect the cable connection areas during installation and servicing |
| Specialized measurement cable | Designed for use within a compatible proximity transducer system |
| Defined cable options | Makes it possible to select a configuration based on length, construction, and approval requirements |
| Industrial monitoring application | Supports the signal path used in rotating-machinery monitoring |
| Replacement suitability | Can simplify maintenance when the installed configuration is matched correctly |
The principal advantage is not simply the cable’s physical durability. It is the combination of the correct electrical cable design, the required length, and the selected mechanical and approval options within a compatible measurement system.
8. Brand and Product Series
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product series | 3300 XL |
| Related system | 3300 XL 11 mm proximity transducer system |
| Product category | Extension cable |
| Primary function | Signal connection between a compatible probe and Proximitor sensor |
| Typical measurement applications | Shaft vibration, displacement, axial position, and related proximity measurements |
| Typical industries | Power generation, oil and gas, petrochemical processing, and heavy industry |
The 3300 XL product family includes several components that work together as a measurement system. The extension cable is one part of that system; it does not replace the probe, Proximitor sensor, or monitoring module.
When selecting a replacement, compatibility must be assessed across the complete system rather than by connector appearance alone.
9. Five Related Models in the Same Series
The following models provide useful comparison points for reviewing cable length, construction, and approval requirements. Their availability and exact option definitions should be verified before ordering.
| Model | Product type | Cable length | Cable configuration | Approval option | Dimensions | Weight |
|---|---|---|---|---|---|---|
| 330730-080-00-05 | 3300 XL extension cable | 8.0 m | Standard, unarmored configuration | 05 | Cable length 8.0 m; diameter to be confirmed | Exact net weight to be confirmed |
| 330730-080-01-05 | 3300 XL extension cable | 8.0 m | Armored configuration; confirm connector option | 05 | Cable length 8.0 m; diameter to be confirmed | Exact net weight to be confirmed |
| 330730-080-02-05 | 3300 XL extension cable | 8.0 m | Standard cable with connector protectors | 05 | Cable length 8.0 m; diameter to be confirmed | Exact net weight to be confirmed |
| 330730-040-03-05 | 3300 XL extension cable | 4.0 m | Armored cable with connector protectors | 05 | Cable length 4.0 m; diameter to be confirmed | Exact net weight to be confirmed |
| 330730-120-03-05 | 3300 XL extension cable | 12.0 m, subject to ordering-code confirmation | Armored cable with connector protectors, subject to confirmation | 05, subject to confirmation | Confirm against product drawing | Exact net weight to be confirmed |
These are comparison candidates rather than guaranteed direct replacements. In particular, do not infer that every suffix combination is available simply because similar ordering codes exist. Confirm the complete model configuration and system compatibility before purchasing.
Differences between the related models
– 330730-080-00-05: A candidate for installations where the standard cable construction is specified and the relevant approval option is required.
– 330730-080-01-05: A candidate for applications requiring an armored cable. The exact connector-protection arrangement should be checked.
– 330730-080-02-05: A candidate where connector protectors are required with the standard cable configuration.
– 330730-040-03-05: A shorter cable option with the armored and connector-protected configuration, suitable only where a 4.0 m length meets the installation requirements.
– 330730-120-03-05: A longer-length comparison candidate. Confirm the ordering code, total system length, and compatibility before treating it as an available replacement.
10. Five Other Bently Nevada Models for Comparison
These models cover different functions within machinery monitoring. They are useful when planning a complete monitoring arrangement, but they are not direct substitutes for the extension cable.
| Model | Product type | Main function | Typical application | Dimensions | Weight |
|---|---|---|---|---|---|
| 330101-00-08-10-02-00 | Proximity probe model candidate | Non-contact proximity measurement | Shaft vibration and displacement monitoring | Depends on probe configuration; drawing required | Exact configuration weight to be confirmed |
| 330103-00-08-10-02-00 | Proximity probe model candidate | Non-contact proximity measurement | Compatible rotating-machinery monitoring systems | Depends on probe configuration; drawing required | Exact configuration weight to be confirmed |
| 330104-00-08-10-02-00 | Proximity probe model candidate | Non-contact proximity measurement | Machinery condition monitoring | Depends on probe configuration; drawing required | Exact configuration weight to be confirmed |
| 330180-50-00 | Proximitor sensor model candidate | Interfaces a compatible probe and extension cable with monitoring equipment | Shaft vibration and displacement measurement | Depends on the exact sensor and mounting arrangement | Exact configuration weight to be confirmed |
| 3500/42M | Proximitor/seismic monitoring module | Receives compatible transducer signals and provides monitoring functions | Machinery vibration and position monitoring | Rack-module dimensions; verify rack and module requirements | Exact module weight to be confirmed |
The probe model numbers above are comparison candidates, not confirmation that every suffix combination is suitable for a particular installation. Confirm probe thread, length, connector, sensor compatibility, and the complete system configuration before specifying any of them.
11. Installation and Maintenance Considerations
Before installation, inspect the cable for visible damage, deformed connectors, damaged armor, or contamination around the connection points. Handle the connectors carefully, and secure them according to the applicable installation instructions.
Route the cable to avoid pinching, excessive bending, sharp edges, and unnecessary mechanical stress. The armor offers additional protection, but it does not remove the need for correct routing and cable support.
During replacement, record the complete existing part number and compare it with the proposed replacement. Confirm the cable length, connector and armor options, approval requirements, and compatibility with the installed probe and Proximitor sensor.
After installation, check the connections and verify that the complete measurement system produces expected readings. An abnormal signal may result from several causes, including probe condition, cable damage, connector problems, sensor mismatch, or monitor configuration.
12. Product Selection Checklist
| Checkpoint | Required action |
|---|---|
| Complete part number | Confirm 330730-080-03-05 against the existing installation |
| Cable length | Verify that 8.0 m is correct for the complete system |
| Armor | Confirm that the armored configuration is required |
| Connector protectors | Confirm the specified connector-protection arrangement |
| Agency approvals | Verify the actual approvals needed for the installation location |
| Probe compatibility | Check the exact probe model and connection requirements |
| Proximitor compatibility | Confirm the sensor model and complete system length |
| Physical dimensions | Obtain the cable diameter and connector dimensions from the applicable drawing |
| Net weight | Confirm the actual assembly weight rather than relying on inconsistent listing figures |
| Environmental conditions | Check temperature, chemical exposure, moisture, and routing requirements |
13. Final Summary
The Bently Nevada 330730-080-03-05 is an 8.0 m armored extension cable in the 3300 XL 11 mm proximity transducer family. Its 03 option identifies an armored cable with connector protectors, while 05 indicates a multiple-agency-approval option whose exact certifications should be confirmed for the supplied configuration.
The cable connects a compatible proximity probe to a compatible Proximitor sensor, supporting the signal path used for shaft vibration, displacement, and related machinery measurements. Its armored construction and connector protectors are useful where additional mechanical protection is needed.
For procurement and maintenance, the most important considerations are the full part number, correct cable length, connector configuration, required approvals, and compatibility with the existing measurement system. The nominal cable length is 8.0 m; the exact assembly dimensions and net weight should be confirmed from the applicable product specification before they are entered into formal engineering or shipping records.