Introduction
The Bently Nevada 330130-075-03-00 is a 3300 XL Standard Extension Cable designed for installations that require a 7.5-meter (24.6 ft) connection with both armored cable construction and connector protection.
The part number identifies the configuration precisely: 075 represents the 7.5-meter cable length, 03 specifies an armored cable with connector protectors, and 00 indicates that an additional agency approval option is not required. This makes the model particularly suitable for demanding machinery-monitoring installations where the cable route requires additional mechanical protection.
Used within a compatible 3300 XL proximity transducer system, the extension cable connects the proximity probe to the Proximitor Sensor while maintaining the required electrical characteristics of the signal path. Its longer 7.5-meter reach is especially useful on large turbines, compressors, generators, and other rotating equipment where monitoring electronics may be located well away from the sensing point.
The 03 configuration is the key advantage of this model. Compared with a standard 7.5-meter extension cable, it combines the flexibility of an extended cable length with armoring along the cable and additional protection around the connector interface, giving maintenance teams a more robust option for industrial installations.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330130-075-03-00 |
| Product Series | 3300 XL |
| Product Type | Standard Extension Cable |
| Cable Length | 7.5 m (24.6 ft) |
| Length Option | 075 |
| Cable Option | 03 — Armored Cable with Connector Protectors |
| Agency Approval Option | 00 — Not Required |
| Cable Construction | 75 Ω Triaxial |
| Insulation | FEP |
| Armor | FEP or PFA-coated protective armor |
| Connector Protection | Included |
| Typical Cable Diameter | 3.7 mm maximum |
| Maximum Armor Diameter | Approx. 7.67 mm |
| Armor Ferrule Diameter | Approx. 10.2 mm |
| Typical Capacitance | Approx. 69.9 pF/m |
| Primary Function | Probe-to-Proximitor signal extension |
| System Compatibility | 3300 XL Proximity Transducer System |
| Typical Measurements | Shaft vibration, shaft position, speed and phase reference |
Applications
Steam and Gas Turbines
The 330130-075-03-00 is a strong fit for turbine monitoring installations where proximity probes are installed around bearings or shafts and the Proximitor Sensor must be positioned farther away.
The 7.5-meter reach provides additional routing freedom, while the armored construction helps protect the cable against mechanical contact in the machinery area.
Large Compressor Systems
Compressor trains often require carefully routed instrumentation cables around bearing housings and other mechanical structures. The extended cable length helps accommodate larger equipment layouts without unnecessarily relocating the monitoring electronics.
Generator Shaft Monitoring
Large generators can require multiple proximity measurements around the shaft and bearing system. The 330130-075-03-00 provides the reach needed for installations where the signal-conditioning electronics are not immediately adjacent to the probe.
Oil and Gas Machinery
Rotating equipment in oil and gas facilities can be exposed to vibration, maintenance traffic, and mechanical interference. The armored cable construction provides additional protection for the signal path in appropriately designed installations.
Petrochemical Plants
Pumps, compressors, turbines, and other critical assets commonly rely on continuous vibration and position monitoring. A protected 7.5-meter extension cable can simplify routing between the machinery and instrumentation cabinets.
Industrial Pumps
Compatible 3300 XL proximity systems can be used on high-value pumps where shaft vibration or position monitoring is required. The relatively long cable length is useful where monitoring electronics must be mounted away from the pump.
Fluid-Film Bearing Systems
The cable can form part of a proximity transducer arrangement used around fluid-film bearings. Maintaining the intended probe, extension cable, and Proximitor Sensor combination is important for correct system operation.
Machinery Protection Systems
In a machinery protection installation, the extension cable is part of the measurement chain rather than simply a passive piece of wiring. The 330130-075-03-00 provides a defined 3300 XL configuration with mechanical protection for the cable route.
Retrofit Projects
For an existing 3300 XL installation originally configured with a 7.5-meter armored extension cable and connector protectors, this model provides a direct configuration match and can simplify spare-parts planning.
Advantages
7.5-Meter Installation Range
The 7.5-meter length gives this model a significant reach advantage over shorter 330130 configurations. It is especially useful on large machines where the sensor and monitoring cabinet cannot be positioned close together.
Armored Construction
The 03 configuration includes armored cable, providing additional protection against abrasion, mechanical contact, and handling damage compared with a standard unarmored extension cable.
Connector Protection
The connector protectors are an important part of the 03 configuration. They help protect the connection interface during installation and maintenance, where miniature coaxial connectors can otherwise be vulnerable to accidental contact.
75 Ω Triaxial Architecture
The 75 Ω triaxial construction is designed for the electrical requirements of the 3300 XL proximity transducer system, supporting the intended signal path between the proximity probe and Proximitor Sensor.
FEP Insulation
FEP insulation provides a durable insulating layer suitable for industrial instrumentation and rotating-machinery monitoring applications.
Better Mechanical Robustness
Compared with a basic 7.5-meter standard cable, the armored configuration offers a more protective solution for cable routes that pass near machine structures, maintenance areas, or other potential sources of abrasion.
Protected Connector Interface
The connector protector adds localized protection without requiring the entire connection arrangement to be redesigned. This is particularly useful during field installation and subsequent maintenance work.
Long Cable Without Compromising System Architecture
The 330130-075-03-00 is purpose-configured as a 3300 XL extension cable, allowing engineers to select the required cable length and construction while maintaining the established proximity-monitoring architecture.
Easy Part-Number Recognition
The configuration can be read directly from the model number:
- 330130 — 3300 XL Standard Extension Cable
- 075 — 7.5-meter length
- 03 — Armored cable with connector protectors
- 00 — Additional agency approval not required
This makes the model straightforward to identify during inventory management, maintenance planning, and replacement procurement.
Strong Choice for Critical Equipment
For high-value rotating machinery, cable protection can be just as important as sensor selection. The armored and connector-protected design gives the 330130-075-03-00 a practical advantage where installation durability is a priority.
Technical FAQs
1. What is the Bently Nevada 330130-075-03-00?
The 330130-075-03-00 is a 3300 XL Standard Extension Cable with a 7.5-meter length, armored cable construction, connector protectors, and no additional agency approval option.
2. What is the cable length?
The cable length is 7.5 meters (24.6 feet). The 075 section of the part number identifies the length option.
3. What does the 03 configuration mean?
The 03 configuration specifies an armored cable with connector protectors. This provides both mechanical protection along the cable and additional protection around the connector interface.
4. Is the 330130-075-03-00 an armored cable?
Yes. The 03 option specifically identifies the armored cable with connector-protector configuration.
5. Does this model include connector protectors?
Yes. Connector protectors are part of the 03 configuration. The published 3300 XL dimensional information identifies the connector protector at approximately 12.4 mm maximum diameter and 51.1 mm maximum length.
6. What is the standard cable diameter?
The 75 Ω cable has a maximum outside diameter of approximately 3.7 mm. The armored version increases the protected outside diameter to approximately 7.67 mm maximum.
7. What is the approximate weight?
The nominal cable weight is approximately 34 g/m, which corresponds to about 0.255 kg for 7.5 meters. Supplier specifications may list approximately 1 kg shipping weight after packaging.
8. Can this cable be used with a 3300 XL 8 mm proximity probe?
Yes, provided the probe, extension cable, and Proximitor Sensor are configured as a compatible 3300 XL proximity transducer system. The total probe-plus-extension length should be checked against the required Proximitor Sensor configuration.
9. What is the difference between 330130-075-03-00 and 330130-075-02-00?
The 02 configuration is a standard cable with connector protectors, while the 03 configuration adds armored cable construction as well as connector protection. Therefore, the 03 model is the better choice when additional mechanical protection is required.
10. What should be checked before ordering?
Verify the 7.5-meter length, armored 03 configuration, connector protection, 00 approval option, compatible probe, Proximitor Sensor, total system length, and installation requirements. Matching the complete part number is preferable to selecting a cable based only on length.
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