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The Bently Nevada 330905-00-25-05-01 is a precision proximity probe extension cable assembly designed for use in a 3300 XL 8 mm Proximity Transducer System. It is mainly used to provide an extended electrical connection between a proximity probe installed on rotating machinery and the monitoring equipment responsible for vibration measurement, shaft displacement monitoring, and machinery protection.
The extension cable is an essential part of the non-contact eddy current measurement system. It provides a reliable signal transmission path between the proximity probe and the monitoring device, ensuring that vibration and displacement signals can be transferred accurately while maintaining stable electrical performance.
This model is configured with a 25-meter cable length, providing a long-distance installation solution for large industrial rotating equipment. It is especially suitable for applications where the measurement point is located far away from the monitoring cabinet or signal processing unit.
The 330905-00-25-05-01 is commonly used in critical machinery applications such as steam turbines, gas turbines, compressors, generators, pumps, motors, and other large rotating equipment requiring continuous condition monitoring.
The cable assembly is designed for industrial environments where reliable long-term operation is required. It provides stable performance under conditions including continuous vibration, temperature variation, electromagnetic interference, oil exposure, and mechanical stress.
By maintaining signal quality over a long transmission distance, this product supports accurate monitoring of shaft vibration, radial displacement, axial movement, and machine operating conditions.
| Parameter | Specification |
|---|---|
| Model | 330905-00-25-05-01 |
| Product Type | Proximity Probe Extension Cable Assembly |
| Product Series | 3300 XL 8 mm Proximity Transducer System |
| Technology | Eddy Current Non-Contact Measurement Technology |
| Compatible Probe Type | 3300 XL 8 mm Proximity Probe |
| Cable Length | 25 meters |
| Cable Structure | Shielded coaxial extension cable |
| Connector Type | Standard proximity system connector |
| Signal Transmission Type | High-frequency vibration and displacement signal transmission |
| Measurement Function | Shaft vibration, radial displacement, axial position monitoring |
| Operating Temperature Range | Approximately -34°C to +177°C |
| Cable Shielding | Multi-layer electromagnetic shielding structure |
| Installation Position | Between proximity probe and monitoring equipment |
| Environmental Resistance | Resistant to vibration, oil, moisture, and industrial contamination |
| Mechanical Construction | Flexible industrial-grade cable assembly |
| Signal Performance | Stable long-distance signal transmission |
| Dimensions | Length: 25000 mm × Cable diameter: approximately 5 mm |
| Weight | Approximately 1.55 kg |
| Application Field | Rotating machinery condition monitoring |
| System Compatibility | 3300 XL proximity monitoring system |
The 330905-00-25-05-01 belongs to the 3300 XL 8 mm Proximity Transducer System series.
This series is designed for continuous monitoring of critical rotating machinery where accurate measurement of shaft vibration, displacement, and rotor position is required.
The system uses eddy current sensing technology, which enables non-contact measurement between the proximity probe and rotating shaft.
The non-contact measurement principle eliminates physical contact between the sensor and the shaft, reducing mechanical wear and improving long-term reliability.
During machine operation, the proximity probe generates a high-frequency electromagnetic field near the rotating shaft.
When the shaft moves due to vibration, imbalance, thermal expansion, mechanical misalignment, or operating load changes, the distance between the probe tip and the shaft surface changes.
This distance variation affects the electromagnetic field and generates a corresponding electrical signal.
The signal travels through the extension cable to the monitoring equipment, where it is analyzed for machine condition evaluation.
The 3300 XL 8 mm series provides:
The complete system consists of:
| Component | Function |
|---|---|
| Proximity Probe | Detects shaft vibration and displacement changes |
| Extension Cable | Transfers electrical signals over extended distances |
| Signal Processing Unit | Converts and processes measurement signals |
| Monitoring Module | Provides machinery condition information |
| Protection System | Generates alarms and protective actions |
The 330905-00-25-05-01 provides a long-distance connection solution while maintaining reliable measurement performance.
The 330905-00-25-05-01 operates as a signal transmission component in an eddy current proximity measurement system.
The proximity probe generates a high-frequency electromagnetic field around the rotating shaft.
When the shaft moves, the distance between the probe tip and shaft surface changes.
Common causes of shaft movement include:
The change in distance modifies the electromagnetic field characteristics.
The proximity probe converts this change into an electrical signal proportional to shaft movement.
The extension cable transfers the signal from the probe to the monitoring equipment while maintaining signal stability.
The monitoring system analyzes the signal and provides information about equipment condition.
The measured data can be used for:
Steam turbines require highly accurate vibration monitoring systems to maintain safe operation.
The 25-meter cable length provides additional installation flexibility when turbine sensors are installed at a considerable distance from monitoring equipment.
Gas turbines operate under high-speed and high-temperature conditions.
The extension cable supports stable transmission of vibration and displacement signals for turbine monitoring and protection.
Large compressors require continuous vibration measurement to identify abnormal mechanical conditions.
The extended cable length allows the sensor to remain close to the rotating shaft while connecting to remote monitoring systems.
Generators require accurate measurement of rotor vibration and position.
The product provides reliable signal transmission for generator condition monitoring.
Petrochemical equipment operates continuously under demanding industrial conditions.
The product provides reliable signal connection in environments affected by vibration, oil contamination, temperature variation, and industrial interference.
Typical applications include:
The product helps improve equipment reliability through continuous monitoring.
The 25-meter cable length provides excellent installation flexibility for large machinery where the sensor and monitoring equipment are installed in separate locations.
The extension cable maintains reliable transmission of high-frequency proximity signals over long distances.
The shielded cable design reduces electrical interference and improves signal reliability.
The cable assembly is designed to withstand:
The product performs reliably in environments containing:
Stable signal transmission allows monitoring systems to detect small changes in shaft movement.
The standardized cable structure allows convenient installation with compatible monitoring systems.
Reliable measurement data helps identify potential machinery problems before serious failures occur.
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product Category | Machinery Condition Monitoring Components |
| Product Family | Proximity Measurement System |
| Product Series | 3300 XL Series |
| Sub-Series | 3300 XL 8 mm Proximity Transducer System |
| Product Type | Extension Cable Assembly |
| Main Function | Signal transmission between proximity probe and monitoring equipment |
| Primary Application | Rotating machinery vibration and displacement monitoring |
| Feature | Description |
|---|---|
| Measurement Technology | Eddy current non-contact sensing |
| Cable Length | 25 meters |
| Signal Type | Dynamic vibration and displacement signal |
| Cable Design | Shielded coaxial industrial cable |
| Connection Method | Probe extension connection |
| Operating Environment | Industrial rotating machinery applications |
| Mechanical Reliability | Designed for continuous operation |
| Signal Protection | Electromagnetic shielding structure |
| Maintenance Requirement | Low maintenance design |
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 330905-00-21-05-02-CN | Extension Cable Assembly | 21-meter proximity extension cable with shielded signal transmission | Length: 21000 mm × Diameter approx. 5 mm | Approx. 1.35 kg | Large machinery monitoring |
| 330905-00-20-10-02-00 | Extension Cable Assembly | 20-meter proximity extension cable | Length: 20000 mm × Diameter approx. 5 mm | Approx. 1.30 kg | Turbine monitoring |
| 330905-00-18-05-02-05 | Extension Cable Assembly | 18-meter proximity extension cable | Length: 18000 mm × Diameter approx. 5 mm | Approx. 1.20 kg | Compressor monitoring |
| 330905-00-16-10-02-05 | Extension Cable Assembly | 16-meter proximity extension cable | Length: 16000 mm × Diameter approx. 5 mm | Approx. 1.05 kg | Rotating machinery monitoring |
| 330103-00-03-10-02-00 | Proximity Probe | 8 mm sensing tip precision measurement probe | Probe length approx. 100 mm | Approx. 0.18 kg | Shaft vibration measurement |
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 3500/42M | Machinery Protection Monitor Module | Multi-channel vibration and displacement monitoring | Approx. 120 mm × 40 mm × 130 mm | Approx. 0.80 kg | Machinery protection systems |
| 3500/25 | Keyphasor Module | Rotor speed and phase reference measurement | Approx. 120 mm × 40 mm × 130 mm | Approx. 0.75 kg | Turbine monitoring |
| 330101-00-08-10-02-00 | 3300 XL Proximity Probe | 8 mm probe with precision vibration measurement | Probe length approx. 100 mm | Approx. 0.18 kg | Rotating machinery monitoring |
| 330730-080-00-05 | Extension Cable Assembly | Industrial proximity signal extension cable | Length: 5000 mm × Diameter approx. 5 mm | Approx. 0.55 kg | Condition monitoring systems |
| 3500/22M | Data Interface Module | Machinery data acquisition and communication module | Approx. 120 mm × 40 mm × 130 mm | Approx. 0.85 kg | Monitoring system communication |
The Bently Nevada 330905-00-25-05-01 is a 25-meter proximity probe extension cable assembly designed for the 3300 XL 8 mm Proximity Transducer System.
It provides a reliable connection between proximity probes and monitoring equipment, ensuring accurate transmission of vibration, displacement, and shaft position signals.
The extended 25-meter cable configuration makes it suitable for large industrial rotating machinery where the distance between the measurement point and monitoring system is significant.
With stable electrical performance, strong electromagnetic shielding, durable mechanical construction, and excellent industrial reliability, the product is widely used in turbines, compressors, generators, pumps, and other critical rotating equipment.
The 330905-00-25-05-01 supports machinery protection and predictive maintenance strategies by providing accurate operating information, helping improve equipment reliability, reduce unexpected downtime, optimize maintenance planning, and extend the service life of industrial machinery.