Introduction
The Bently Nevada 330130-070-00-05 is a 7.0-meter 3300 XL Standard Extension Cable intended for use within compatible 3300 XL proximity measurement systems. It provides the electrical connection between the proximity probe and Proximitor® sensor, helping maintain a stable measurement path for shaft vibration, shaft position, and related machinery-monitoring signals.
This configuration combines three important selection characteristics: a 7.0-meter cable length, the standard 00 cable option, and the 05 multiple-approval option. The standard cable arrangement is non-armored, while the 05 option is associated with CSA, ATEX, and IECEx approvals.
For plants operating critical rotating equipment, the 330130-070-00-05 offers a practical balance between installation reach, compact cable routing, and certification requirements. It is a suitable consideration for turbines, compressors, pumps, generators, and other machinery where proximity measurements form part of a condition-monitoring or protection strategy.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Part Number | 330130-070-00-05 |
| Product Series | 3300 XL |
| Product Type | Standard Extension Cable |
| Nominal Cable Length | 7.0 m (22.9 ft) |
| Length Code | 070 |
| Cable / Connector Option | 00 – Standard cable |
| Approval Option | 05 – Multiple approvals |
| Approvals | CSA, ATEX, IECEx |
| Cable Construction | Standard, non-armored configuration |
| Cable Type | 75 Ω triaxial cable |
| Typical Capacitance | 69.9 pF/m (21.3 pF/ft) |
| Maximum Cable Diameter | Approximately 3.7 mm (0.15 in) |
| Minimum Bend Radius | Approximately 25.4 mm (1.0 in) |
| Standard Temperature Range | Approximately -52°C to +177°C (-62°F to +350°F) |
| Extended Temperature Range | Up to approximately +260°C in applicable configurations |
| Cable Mass | Approximately 34 g/m |
| Approx. 7 m Cable Mass | Approximately 0.24 kg |
| Typical Application | 3300 XL proximity measurement |
| Power Requirement | Passive cable assembly |
Applications
Turbomachinery Monitoring
The 330130-070-00-05 can be integrated into suitable 3300 XL proximity systems used on turbines and other high-speed rotating equipment. The 7-meter length provides additional routing flexibility between the sensing location and monitoring electronics.
Compressor Protection
Compressors often require carefully positioned proximity probes around shafts and bearings. This extension cable can provide the necessary reach while maintaining the electrical characteristics expected by the compatible 3300 XL measurement system.
Pumps and Motors
For pumps, motors, and similar rotating assets, the cable can support proximity-based measurement of shaft movement, vibration, and position where the associated 3300 XL components are correctly matched.
Power Generation Equipment
Power-generation machinery frequently uses proximity monitoring as part of a broader machinery-protection strategy. The 7-meter configuration can be useful where the physical distance between the probe and Proximitor® sensor requires additional cable length.
Hazardous-Location Installations
The 05 approval option makes this model particularly relevant where CSA, ATEX, or IECEx requirements apply. Certification suitability must be evaluated for the complete system and the specific installation rather than relying on the cable approval alone.
Replacement and Retrofit Work
When an existing system already specifies a 7-meter standard extension cable with the 05 approval option, the complete 330130-070-00-05 part number provides a useful replacement reference. Matching the complete configuration helps avoid accidental changes to cable length, construction, or approval status.
Advantages
7-Meter Installation Reach
A 7.0-meter cable length offers useful flexibility for larger machinery layouts. It can simplify routing when shorter cable options leave insufficient working distance around bearings, housings, junction points, or monitoring cabinets.
Multiple Approval Configuration
The -05 suffix is the principal advantage over a basic 330130-070-00-00 configuration. CSA, ATEX, and IECEx approval options make the cable suitable for applications where these certification requirements are relevant.
Compact Standard Construction
The 00 cable option provides a standard, non-armored configuration. With an approximately 3.7 mm maximum cable diameter, it is easier to accommodate in compact instrumentation routes than larger armored alternatives.
Defined 75-Ohm Electrical Design
The cable uses a 75 Ω triaxial construction, with typical capacitance of approximately 69.9 pF/m. These defined electrical characteristics are important because the extension cable forms part of the overall proximity measurement circuit rather than functioning as a generic signal wire.
Wide Temperature Capability
The 3300 XL extension-cable family is designed for demanding temperature environments, with standard configurations commonly specified to approximately +177°C and certain extended-temperature arrangements reaching approximately +260°C. Application-specific temperature limits should be confirmed against the complete selected configuration.
Easy Cable Management
The slim profile and defined bend radius make the standard cable relatively straightforward to route and secure. This is particularly beneficial in installations where the cable path is already protected from significant mechanical abuse.
Useful Maintenance Inventory Item
For facilities with multiple 3300 XL monitoring points, stocking the correct 7-meter approved cable can make replacement work more efficient. The full part number provides a precise reference for purchasing and maintenance teams.
Technical FAQs
1. What is the Bently Nevada 330130-070-00-05?
It is a 3300 XL Standard Extension Cable with a nominal length of 7.0 meters and the 05 multiple-approval option.
2. How long is the cable?
The 330130-070-00-05 is 7.0 meters (22.9 feet) long. The 070 portion of the part number identifies the cable-length option.
3. Is the 330130-070-00-05 armored?
No. The 00 cable option identifies the standard cable configuration. If the installation requires additional mechanical protection, an armored configuration from the 330130 family should be considered.
4. What does the “05” suffix mean?
The 05 approval option corresponds to the multiple-approval configuration associated with CSA, ATEX, and IECEx.
5. What is the cable diameter?
The standard cable has a maximum outside diameter of approximately 3.7 mm (0.15 in). This relatively small diameter supports compact cable routing.
6. What is the minimum bend radius?
The specified minimum bend radius is approximately 25.4 mm (1.0 inch). Maintaining an appropriate bend radius helps prevent unnecessary mechanical stress during installation.
7. What is the cable weight?
The cable mass is approximately 34 g/m, giving an estimated physical mass of about 0.24 kg for a 7-meter cable. Another product listing gives approximately 238 g for the assembly.
8. What signals can the cable carry?
Within a compatible 3300 XL system, the extension cable forms part of the signal path for measurements such as shaft vibration, shaft position, and Keyphasor® reference signals.
9. Can this cable be used in a hazardous area?
The -05 configuration provides CSA, ATEX, and IECEx approval options. However, installation suitability depends on the complete certified measurement system, hazardous-area classification, installation method, and applicable regulations.
10. Why must the probe and extension-cable lengths be considered together?
The extension cable is part of the complete proximity transducer electrical configuration. The probe length and extension-cable length must be selected to achieve the required total system length for the associated Proximitor® sensor. Therefore, choosing a cable solely because its physical length reaches the equipment is not sufficient.
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