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- Bently Nevada
- 330730-080-11-05
- 3300 XL 11mm Extension Cable
- USA
- 7.6 mm
- 1.12kg
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Bently Nevada 330730-080-11-05 Extension Cable: Product Description, Technical Parameters, Applications, and Related Models
1. Product Overview
The Bently Nevada 330730-080-11-05 is identified as an extension-cable model associated with the 3300 XL 11 mm proximity transducer system. Extension cables of this type connect a compatible proximity probe to its Proximitor Sensor, providing the electrical path needed for machinery displacement and vibration measurements.
In rotating machinery applications, the probe, extension cable, and Proximitor Sensor operate as a matched system. The cable is not a standalone vibration sensor; instead, it helps preserve the electrical characteristics required for the measurement channel to function correctly.
The 080 portion of the model number indicates an 8.0 m nominal cable length. The exact meaning of the 11 option code, however, should be confirmed against the ordering information for this specific part number rather than inferred from a similar model. Likewise, the final 05 suffix is associated with a multiple-agency approval option in this product family, but the actual certifications for the supplied assembly should be checked before use in a regulated installation.
2. Basic Product Information
| Parameter | Specification |
|---|---|
| Brand | Bently Nevada |
| Full model number | 330730-080-11-05 |
| Product name | Extension Cable |
| Product family | 3300 XL 11 mm proximity transducer system |
| Product category | Industrial sensor extension cable |
| Cable length code | 080 |
| Nominal cable length | 8.0 m |
| Approximate length in feet | 26.2 ft |
| Option code | 11 |
| Approval suffix | 05 |
| Approval description | Multiple-agency approval option; exact approvals require confirmation |
| Primary function | Connects a compatible proximity probe to its Proximitor Sensor |
| Measurement application | Shaft displacement and vibration monitoring, as part of a complete compatible system |
| Typical equipment | Turbines, compressors, pumps, and other suitably instrumented rotating machinery |
| Cable construction | Must be confirmed for the exact 11 configuration |
| Connector configuration | Must be confirmed against the exact order code |
| Cable outside diameter | Not confirmed |
| Overall cable assembly dimensions | Nominal length 8.0 m; connector dimensions not confirmed |
| Net weight | Not confirmed for this exact configuration |
| Shipping weight | Depends on packaging and supplied accessories |
| Operating temperature | Confirm the rating for the exact cable construction |
| Electrical compatibility | Must match the specified probe, cable, and Proximitor Sensor combination |
| Installation type | Industrial, pre-terminated cable assembly, subject to verification of the supplied configuration |
Specification note: The exact cable construction, connector details, outside diameter, and net weight of 330730-080-11-05 are not established here. They are deliberately marked as unconfirmed rather than assigned values from a different suffix configuration. This distinction is important when preparing a formal purchase specification or replacement-parts list.
3. Detailed Technical Specifications
The 11 option is associated with armored FluidLoc cable construction. This configuration combines the cable’s electrical insulation with a flexible protective metal armor and a FluidLoc design intended to limit the migration of oil or other liquids through the cable interior.
| Parameter | Technical specification |
|---|---|
| Model | 330730-080-11-05 |
| Product series | 3300 XL 11 mm |
| Cable length | 8.0 m |
| Length in feet | Approximately 26.2 ft |
| Cable construction | Armored FluidLoc |
| Electrical cable type | 75 Ω triaxial cable |
| Insulation material | FEP (fluoroethylene propylene) |
| Armor material | Flexible AISI 302 stainless steel |
| Armor outer covering | FEP |
| Maximum armored cable outside diameter | Approximately 7.6 mm |
| Maximum FluidLoc cable diameter before armor | Approximately 3.9 mm |
| Typical cable capacitance | 69.9 pF/m |
| Typical capacitance per foot | 21.3 pF/ft |
| Center-conductor resistance, 8.0 m | 2.0 ± 0.5 Ω |
| Coaxial-conductor resistance, 8.0 m | 0.6 ± 0.2 Ω |
| Typical armored cable weight | 140 g/m |
| Calculated cable weight for 8.0 m | Approximately 1.12 kg |
| Approximate connector diameter | 7.2 mm maximum at the specified connector section; refer to drawing for exact callout |
| Armor length | Approximately 300 mm at the connector ends, less than the overall cable length |
| Connector type | Compatible miniature coaxial connectors for the 3300 XL 11 mm system |
| Connector material | Gold-plated brass, according to the applicable system configuration |
| Operating temperature | Approximately −51°C to +177°C for the cable family |
| Storage temperature | Approximately −51°C to +177°C for the cable family |
| Approval option | 05 — multiple-agency approval option |
| Exact approval scope | Confirm from the supplied unit’s marking and documentation |
| Net weight | Approximately 1.12 kg calculated from the typical armored-cable mass; confirm actual delivered weight |
| Shipping weight | Varies with packaging and accessories |
| Overall dimensions | 8.0 m cable length; exact packaged dimensions depend on packing method |
The dimensional figures above describe the cable and its construction, not the shipping carton. The 1.12 kg figure is a calculation using the typical armored-cable mass of 140 g/m multiplied by 8.0 m; it is not a verified factory net-weight declaration for every supplied assembly.
4. Product Introduction
The 330730-080-11-05 is intended for installations that require an 8.0 m extension cable with armored FluidLoc construction. It connects the compatible proximity probe to the associated Proximitor Sensor, allowing the measurement signal to travel through the specified electrical path.
The proximity probe detects changes in the gap between its sensing tip and a conductive target, such as a rotating shaft. The Proximitor Sensor conditions the probe signal, and compatible monitoring equipment uses that signal to evaluate shaft movement and vibration.
The extension cable is an important part of this arrangement because its electrical characteristics contribute to the behavior of the complete measurement loop. Cable length, capacitance, resistance, connector integrity, and compatibility all matter when maintaining accurate and stable measurements.
The armored construction adds mechanical protection around the cable. FluidLoc construction is intended to help prevent oil or other liquids from travelling through the cable interior, which can be useful in machinery installations where process fluids or lubricating oil are present.
The 05 approval option is intended for configurations requiring multiple agency approvals. The exact approvals applicable to an individual unit should be confirmed before the cable is used in a hazardous or regulated environment.
5. Main Applications
5.1 Steam turbines
Steam turbines require continuous monitoring of mechanical behavior to help identify developing vibration problems, changes in shaft position, and other abnormal operating conditions.
The extension cable connects the compatible probe to its signal-conditioning component. Its armored construction can be useful where the installation route is exposed to mechanical contact or other physical hazards.
5.2 Gas turbines
Gas turbine installations may place instrumentation cables near hot equipment, maintenance access routes, and areas with limited installation space.
The 8.0 m length can provide routing flexibility, while the armor offers an additional layer of mechanical protection. The cable must still be routed within its specified environmental limits and away from conditions that exceed its material ratings.
5.3 Centrifugal compressors
Proximity measurements are widely used in suitable compressor monitoring systems to observe shaft vibration and relative shaft displacement.
The cable helps preserve the electrical connection between the sensing element and Proximitor Sensor. Stable connections are important because intermittent contact or cable damage can affect the measurement channel and complicate machinery diagnostics.
5.4 Industrial pumps
Large industrial pumps may use proximity monitoring where the equipment design and monitoring requirements call for shaft displacement measurement.
An armored extension cable can be appropriate where there is a risk of abrasion, accidental impact, or other mechanical damage. Before installation, confirm that the pump’s monitoring system is designed for the relevant 3300 XL 11 mm components.
5.5 Other rotating machinery
The cable may also be used in suitable machinery monitoring installations involving compatible rotating equipment.
Typical objectives include monitoring shaft movement, identifying abnormal vibration trends, and providing data for maintenance decisions. These functions depend on the complete monitoring system rather than the cable alone.
6. Product Advantages
6.1 Additional mechanical protection
The flexible stainless-steel armor helps protect the cable against abrasion and certain forms of mechanical damage. This can be useful when the cable must pass through crowded equipment areas or along industrial machinery.
Armor does not make the cable indestructible. Crushing, sharp bends, severe impacts, and improper installation can still damage the assembly.
6.2 FluidLoc construction
FluidLoc is intended to reduce the risk of oil or other liquids migrating through the cable interior. This feature can be useful in machinery installations where liquid ingress or leakage along a cable route is a concern.
It should not be treated as a substitute for correct installation, suitable sealing of external connections, or routine inspection.
6.3 Defined electrical characteristics
The cable’s specified impedance, capacitance, and resistance support its use in the intended proximity measurement system.
Maintaining the correct cable configuration helps avoid problems that can occur when a replacement cable has different electrical characteristics from those required by the probe and Proximitor Sensor.
6.4 Practical 8.0 m cable length
An 8.0 m cable can accommodate installations where the probe and signal-conditioning equipment are separated by a considerable distance.
Selecting the appropriate length also helps avoid unnecessary excess cable, poor routing, or unapproved modifications. The total probe-system length must still comply with the applicable system requirements.
6.5 Suitable for industrial monitoring arrangements
The cable is designed as a component of an industrial proximity measurement system. When correctly matched and installed, it supports the transmission of measurement signals used by machinery monitoring equipment.
The cable itself does not perform signal analysis, issue alarms, or provide independent machine protection.
6.6 Pre-terminated connection assembly
A pre-terminated assembly can simplify installation compared with field-assembling the entire cable and connector system.
Correct handling is still necessary. The connectors should be inspected before mating, and the cable should not be altered unless the applicable installation instructions permit it.
6.7 Multiple-agency approval option
The 05 suffix identifies a multiple-approval ordering option. This can be relevant to projects that specify particular equipment approvals.
The actual certification status must be verified for the delivered configuration. The model suffix should not be used as the sole basis for declaring compliance with a site’s hazardous-area requirements.
7. Brand and Series Information
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product series | 3300 XL |
| System family | 3300 XL 11 mm Proximity Transducer System |
| Product type | Extension cable |
| Model | 330730-080-11-05 |
| Primary role | Signal connection between a compatible proximity probe and Proximitor Sensor |
| Cable length | 8.0 m |
| Construction | Armored FluidLoc |
| Typical application | Machinery condition monitoring |
| Commonly associated equipment | Compatible proximity probes, Proximitor Sensors, and monitoring modules |
The 3300 XL 11 mm system is a matched measurement arrangement. The probe, extension cable, and Proximitor Sensor must be selected as compatible components. A cable with the correct physical length is not necessarily suitable if its electrical or construction options differ from the required configuration.
8. Five Related Models for Comparison
The models below provide useful comparison points within the extension-cable family. The different option codes can represent changes in cable construction, protection features, length, or approval configuration.
| Model | Product type | Main parameters | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330730-080-01-05 | 3300 XL 11 mm extension cable | 8.0 m; armored cable option; multiple-agency approval option | 8.0 m cable; exact connector dimensions depend on drawing | Configuration-specific; verify |
| 330730-080-03-05 | 3300 XL 11 mm extension cable | 8.0 m; armored cable with connector protectors; multiple-agency approval option | 8.0 m cable; connector protectors add to end dimensions | Configuration-specific; verify |
| 330730-080-12-05 | 3300 XL 11 mm extension cable | 8.0 m; FluidLoc cable with connector protector; multiple-agency approval option | 8.0 m cable; cable diameter and connector dimensions depend on configuration | Approx. 0.36 kg as a standard-cable reference; verify |
| 330730-080-00-05 | 3300 XL 11 mm extension cable | 8.0 m; standard cable configuration; multiple-agency approval option | 8.0 m cable; exact assembly dimensions require drawing | Approx. 0.36 kg as a standard-cable reference; verify |
| 330730-040-11-05 | 3300 XL 11 mm extension cable | 4.0 m nominal length; armored FluidLoc option; multiple-agency approval option, subject to order-code confirmation | 4.0 m cable; connector and armor dimensions require drawing | Approx. 0.56 kg estimated from 140 g/m; verify |
These models should be treated as comparison candidates, not automatically interchangeable substitutes. Confirm the full ordering code and the compatibility of the cable with the existing probe and Proximitor Sensor before ordering. Published technical information for this product family distinguishes standard, armored, FluidLoc, and connector-protector configurations.
9. Five Other Commonly Used Models from the Same Brand
The following products are associated with machinery monitoring and proximity measurement. They perform different functions, so they are not direct replacements for the extension cable.
| Model | Product type | Main parameters and function | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330101-00-08-10-02-00 | 3300 XL 8 mm proximity probe | Probe component for a compatible 8 mm proximity system; verify the exact probe and thread configuration | Depends on probe configuration; consult drawing | Not confirmed |
| 330103-00-08-10-02-00 | 3300 XL 8 mm proximity probe | Proximity sensing component used in suitable machinery measurement installations | Depends on probe configuration; consult drawing | Not confirmed |
| 330104-00-08-10-02-00 | 3300 XL 8 mm proximity probe | Probe model for compatible proximity measurement applications; system compatibility must be verified | Depends on probe configuration; consult drawing | Not confirmed |
| 330180-50-00 | Proximitor Sensor | Signal-conditioning component for a compatible proximity measurement system | Exact housing and mounting dimensions require the applicable drawing | Not confirmed |
| 3500/42M | Machinery monitoring module | Monitoring module used in compatible machinery protection and condition-monitoring arrangements | Rack-mounted; exact dimensions depend on hardware configuration | Not confirmed |
The probe, Proximitor Sensor, extension cable, and monitoring module have different roles. The probe detects the target’s movement, the Proximitor Sensor conditions the electrical signal, the extension cable connects the probe to the sensor, and the monitoring module processes measurements according to the system configuration.
The exact models required depend on the installed machinery, measurement system, and replacement requirements. Confirm the complete part number and physical specifications before purchasing.
10. Installation Recommendations
Before installation, verify that the full part number matches the intended system. Confirm the cable length, construction, connector type, and approval requirements. Inspect the connectors and cable jacket for damage before connecting the assembly.
During installation, route the cable to reduce the risk of abrasion, crushing, excessive bending, and contact with unsuitable hot surfaces. Avoid modifying or shortening the cable unless the applicable instructions explicitly allow it.
After installation, verify that both connections are secure and check the monitoring channel according to the site’s commissioning procedure. If the readings are unstable, investigate the entire measurement loop rather than assuming that the cable is the only possible cause.
During routine maintenance, inspect the cable armor, outer covering, connector condition, routing supports, and any signs of liquid exposure. A damaged cable should be assessed and replaced in accordance with the equipment maintenance procedure.
11. Final Technical Summary
The Bently Nevada 330730-080-11-05 is an 8.0 m extension cable for the 3300 XL 11 mm proximity transducer system. Its 11 configuration is associated with armored FluidLoc construction, combining a triaxial FEP-insulated cable with flexible stainless-steel armor and a fluid-migration-resistant design.
The main selection points are the required cable length, the electrical compatibility of the complete transducer system, the mechanical protection required by the installation, and the applicable approval configuration.
For a specification sheet, the nominal length is 8.0 m, the armored cable outside diameter is approximately 7.6 mm maximum, and the typical armored-cable mass works out to approximately 1.12 kg for 8.0 m. The latter is a calculated reference value rather than a confirmed net weight for every supplied assembly. Exact connector dimensions, packed dimensions, and delivered weight should be verified before finalizing a purchase order or shipping document.