Introduction
The Bently Nevada 330130-070-00-RU is a 7.0-meter 3300 XL Standard Extension Cable intended for compatible Bently Nevada proximity measurement systems. It provides the extended connection required between a 3300 XL proximity probe and the associated Proximitor® sensor, helping maintain a reliable signal path in rotating machinery monitoring applications.
With its 070 length designation, this model provides a nominal 7.0-meter reach, or approximately 22.9 feet. The 00 cable configuration identifies the standard cable arrangement, while the -RU suffix distinguishes this particular ordering configuration from standard 00-00 and approval-specific 00-05 versions.
For maintenance teams, the 330130-070-00-RU is particularly useful when an existing installation has already been specified with the RU configuration. Matching the complete part number is an important step when replacing an extension cable because the electrical characteristics, cable length, connector arrangement, and associated Proximitor® sensor all need to work together as one measurement system.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Part Number | 330130-070-00-RU |
| Product Series | 3300 XL |
| Product Type | Standard Extension Cable |
| Nominal Cable Length | 7.0 m (22.9 ft) |
| Length Code | 070 |
| Cable Configuration | 00 – Standard cable |
| Ordering Suffix | RU |
| Construction | Standard, non-armored configuration |
| Cable Type | 3300 XL extension cable |
| Typical Cable Diameter | Approximately 3.7 mm (0.15 in) maximum |
| Typical Cable Capacitance | Approximately 69.9 pF/m |
| Approx. Cable Mass | Approximately 0.24 kg for 7 m |
| Typical Minimum Bend Radius | Approximately 25.4 mm (1.0 in) |
| Power Requirement | Passive cable assembly |
| Primary Application | 3300 XL proximity measurement systems |
| Typical Equipment | Turbines, compressors, pumps, motors, generators |
Applications
Rotating Machinery Condition Monitoring
The 330130-070-00-RU can be used as part of compatible 3300 XL proximity measurement arrangements for monitoring shaft movement, vibration, radial position, and other machinery conditions.
Turbine Installations
Large steam and gas turbines often require considerable distance between the sensing location and monitoring electronics. The 7-meter configuration gives installers additional routing freedom while retaining the compact form of a standard cable.
Compressor Monitoring
The cable is well suited to compatible compressor-monitoring arrangements where proximity probes are installed near shafts or bearings and the associated signal-conditioning electronics are positioned farther away.
Pump and Motor Applications
Pumps, motors, generators, and auxiliary rotating equipment can benefit from properly configured proximity monitoring. The 330130-070-00-RU provides the required cable reach for suitable 3300 XL installations.
Replacement and Maintenance
The model is especially relevant when replacing an existing 330130-070-00-RU assembly. Using the complete original part number reduces the risk of selecting a cable with a different length, cable option, or ordering suffix.
Industrial Retrofit Projects
During retrofit work, existing cable routes can make cable length a critical practical consideration. The 7-meter configuration provides useful additional reach without requiring the installation of a substantially longer cable.
Advantages
Extended 7-Meter Reach
The 7-meter length offers a practical solution for installations where shorter extension cables leave limited routing flexibility. It can provide extra working distance around bearing housings, junction boxes, instrument panels, and monitoring cabinets.
Standard Cable Profile
The 00 configuration is a standard, non-armored cable arrangement. Where the cable route is already protected, this can provide a cleaner and easier-to-manage installation than an armored alternative.
Designed for the 3300 XL Architecture
The extension cable is part of the 3300 XL proximity measurement chain. Using the specified cable configuration helps maintain the intended electrical relationship between the proximity probe, extension cable, and Proximitor® sensor.
Compact Installation Footprint
A cable diameter of approximately 3.7 mm allows the standard configuration to fit into relatively constrained instrumentation routes. This is useful around crowded machinery and existing cable trays.
Useful for Exact-Part Replacement
For maintenance organizations, the full 330130-070-00-RU designation is valuable because it identifies the exact configuration rather than simply specifying a generic 7-meter extension. This makes it easier to maintain consistent spare-parts inventory.
Flexible Machinery Layout
The additional reach provided by the 7-meter configuration can simplify cable routing when monitoring electronics cannot be positioned directly beside the machinery sensing point.
Professional Long-Term Solution
For established 3300 XL systems, using the correct extension-cable configuration is preferable to improvising with generic instrumentation cable. Correct component matching supports consistent maintenance practices and helps preserve the intended measurement-system design.
Technical FAQs
1. What is the Bently Nevada 330130-070-00-RU?
The 330130-070-00-RU is a 3300 XL Standard Extension Cable with a nominal 7.0-meter length and standard 00 cable configuration.
2. How long is the 330130-070-00-RU?
The cable length is 7.0 meters, equivalent to approximately 22.9 feet.
3. What does “070” mean?
The 070 portion of the part number identifies the nominal 7.0-meter cable length.
4. What does “00” indicate?
The 00 designation identifies the standard cable configuration rather than an armored or connector-protected option.
5. What does the “RU” suffix mean?
The RU suffix identifies a specific ordering/configuration designation within the Bently Nevada 330130 family. It should be retained when replacing an existing RU-configured cable rather than assuming that another 7-meter cable with a similar appearance is automatically equivalent.
6. Is the 330130-070-00-RU an armored cable?
No. The 00 cable configuration is the standard, non-armored arrangement. If additional mechanical protection is required, an armored 330130 configuration should be evaluated.
7. What is the approximate cable diameter?
The standard 3300 XL extension-cable construction has a maximum diameter of approximately 3.7 mm (0.15 in), making it relatively easy to route in compact instrumentation spaces.
8. How much does the cable weigh?
At approximately 34 g/m, the physical mass of a 7-meter cable is roughly 0.24 kg. The actual supplied or packaged weight can be higher.
9. Can it be used with a 3300 XL proximity probe?
Yes, it is intended for compatible 3300 XL proximity measurement arrangements. The probe, extension cable, and Proximitor® sensor should be selected as a properly matched system.
10. Can the 330130-070-00-RU be replaced by 330130-070-00-00?
Not automatically. Although both configurations have a 7-meter length and standard cable construction, the complete part-number suffix is different. For a maintenance replacement, the original system specification should be checked before substituting another configuration.
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