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- 330905-00-25-05-12-CN
- 3300 XL NSv Proximity Probe
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- 1.55kg
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Bently Nevada 330905-00-25-05-12-CN Proximity Extension Cable Product Detailed Introduction
1. Product Introduction
The Bently Nevada 330905-00-25-05-12-CN is a precision proximity probe extension cable assembly designed for use in the 3300 XL 8 mm Proximity Transducer System. It is mainly used to extend the electrical connection distance between a proximity probe installed on rotating machinery and the monitoring equipment responsible for vibration measurement, shaft displacement monitoring, and machinery protection.
This extension cable is an important part of the non-contact eddy current measurement system. It provides a reliable signal transmission path between the proximity probe and the monitoring system, ensuring that vibration and displacement signals can be transferred accurately from the machine measurement point to the signal processing equipment.
The model features a 25-meter cable length configuration, making it suitable for large industrial rotating equipment where the sensor installation location is far away from the monitoring cabinet or control system.
The 330905-00-25-05-12-CN is designed for critical machinery applications where continuous monitoring, high measurement accuracy, and long-term reliability are required. Typical applications include steam turbines, gas turbines, compressors, generators, pumps, motors, and other large rotating equipment.
The extension cable is manufactured for industrial environments where equipment is exposed to continuous vibration, temperature variation, electromagnetic interference, oil contamination, and mechanical stress.
By maintaining stable electrical characteristics and signal integrity, this product helps ensure accurate measurement of:
- Shaft vibration
- Radial displacement
- Axial movement
- Rotor position
- Mechanical operating condition
2. Product Basic Parameters
| Parameter | Specification |
|---|---|
| Model | 330905-00-25-05-12-CN |
| Product Type | Proximity Probe Extension Cable Assembly |
| Product Series | 3300 XL 8 mm Proximity Transducer System |
| Measurement Technology | Eddy Current Non-Contact Measurement Technology |
| Compatible Probe Type | 3300 XL 8 mm Proximity Probe |
| Cable Length | 25 meters |
| Cable Configuration | Long-distance extension cable assembly |
| Cable Structure | Shielded coaxial industrial cable |
| Connector Type | Standard proximity system connector |
| Signal Transmission Type | High-frequency vibration and displacement signal |
| Main Function | Extending connection distance between sensor and monitoring equipment |
| Measurement Application | Shaft vibration, displacement, and 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 design |
| 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 |
3. Product Series Information
3300 XL 8 mm Proximity Transducer System
The 330905-00-25-05-12-CN belongs to the 3300 XL 8 mm Proximity Transducer System series.
This series is designed for continuous condition monitoring of critical rotating machinery. It provides accurate measurement of shaft vibration, displacement, and position changes during machine operation.
The system uses eddy current sensing technology, which enables non-contact measurement between the proximity probe and the rotating shaft.
The non-contact operating principle provides several important advantages:
- No physical wear between sensor and shaft
- High measurement repeatability
- Long operating life
- Stable performance during continuous operation
- Accurate detection of small shaft movements
During operation, the proximity probe generates a high-frequency electromagnetic field near the shaft surface.
When the shaft position changes because of vibration, imbalance, bearing degradation, thermal expansion, or alignment problems, the distance between the probe tip and shaft surface changes.
This distance variation changes the electromagnetic field and generates a corresponding electrical output signal.
The signal passes through the extension cable and reaches the monitoring equipment for analysis and protection functions.
The system can monitor:
- Rotor vibration
- Shaft displacement
- Axial position
- Machine stability
- Mechanical condition
Main system components:
| Component | Function |
|---|---|
| Proximity Probe | Measures shaft movement without physical contact |
| Extension Cable | Transfers measurement signals over distance |
| Signal Processing Unit | Converts and processes electrical signals |
| Monitoring Module | Displays and evaluates machine condition |
| Protection System | Provides alarms and shutdown protection |
The 330905-00-25-05-12-CN provides reliable signal transmission for large machinery monitoring systems requiring extended cable distance.
4. Product Working Principle
The 330905-00-25-05-12-CN works as a signal transmission component within an eddy current proximity measurement system.
The proximity probe produces a high-frequency electromagnetic field around the rotating shaft.
Changes in the distance between the probe tip and the shaft surface create variations in the electromagnetic field.
These changes are caused by:
- Rotor imbalance
- Shaft vibration
- Bearing wear
- Mechanical misalignment
- Thermal expansion
- Changing operating loads
The proximity probe converts these physical changes into electrical signals.
The extension cable transfers these signals to the monitoring equipment while maintaining signal quality and reducing external electrical interference.
The monitoring system processes the information and determines the operating condition of the machinery.
The collected data can support:
- Continuous condition monitoring
- Fault analysis
- Preventive maintenance
- Machinery protection
- Equipment performance evaluation
5. Product Applications
5.1 Steam Turbine Monitoring
Steam turbines require accurate shaft vibration and displacement monitoring to maintain safe operation.
The 25-meter extension cable allows flexible installation where the proximity probe is mounted near the turbine while monitoring equipment is positioned remotely.
5.2 Gas Turbine Applications
Gas turbines operate at high speed and under severe thermal conditions.
The product provides reliable signal transmission for vibration monitoring and machine protection systems.
5.3 Compressor Monitoring
Large compressors require continuous monitoring to detect abnormal vibration conditions.
The long cable length allows the sensor to remain close to the rotating shaft while connecting to remote monitoring equipment.
5.4 Generator Monitoring
Generators require accurate rotor condition monitoring.
The extension cable provides stable transmission of vibration and displacement signals for generator protection.
5.5 Petrochemical Machinery
Petrochemical facilities rely on continuous operation of large rotating equipment.
The product provides reliable operation in environments affected by:
- Oil contamination
- Mechanical vibration
- Temperature variation
- Electrical interference
5.6 Industrial Rotating Equipment
Typical applications include:
- Centrifugal pumps
- Large motors
- Turbo compressors
- Industrial fans
- High-speed rotating machinery
- Mechanical drive systems
The product improves equipment reliability through continuous condition monitoring.
6. Product Advantages
Long-Distance Connection Capability
The 25-meter cable length provides flexibility for installation on large machines where the monitoring system is located far away from the sensor position.
Stable Signal Transmission
The cable maintains stable transmission of proximity signals and supports accurate vibration and displacement measurement.
Excellent Shielding Performance
The shielded cable structure reduces electromagnetic interference and improves signal reliability.
High Mechanical Reliability
The cable assembly is designed for long-term industrial operation under:
- Continuous vibration
- Mechanical stress
- Temperature changes
- Equipment movement
Strong Environmental Adaptability
The product can operate reliably in harsh industrial conditions involving:
- Oil
- Moisture
- Dust
- Temperature fluctuations
- Industrial contamination
Improved Monitoring Accuracy
Reliable signal transmission helps detect small changes in machine operating conditions.
Simple Installation
The standardized design allows convenient connection and replacement during maintenance.
Supports Predictive Maintenance
Accurate measurement signals help identify potential mechanical problems before serious equipment failure occurs.
7. Brand and Product Classification
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product Category | Machinery Condition Monitoring Component |
| 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 | Proximity signal transmission |
| Application Area | Rotating machinery vibration and displacement monitoring |
8. Product Technical Features
| Feature | Description |
|---|---|
| Measurement Technology | Eddy current non-contact sensing |
| Cable Length | 25 meters |
| Cable Diameter | Approximately 5 mm |
| Signal Type | Vibration and displacement measurement signal |
| Cable Construction | Shielded coaxial cable |
| Temperature Capability | Approximately -34°C to +177°C |
| Installation Method | Between probe and monitoring equipment |
| Mechanical Design | Flexible industrial cable assembly |
| Signal Protection | Electromagnetic shielding |
| Maintenance Requirement | Low maintenance design |
9. Recommended Same Series or Related Models
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 330905-00-25-05-02-00 | Proximity Extension Cable | 25-meter shielded extension cable | Length: 25000 mm × Diameter approx. 5 mm | Approx. 1.55 kg | Large rotating equipment |
| 330905-00-25-05-01-CN | Proximity Extension Cable | 25-meter industrial extension cable | Length: 25000 mm × Diameter approx. 5 mm | Approx. 1.55 kg | Machinery monitoring |
| 330905-00-25-05-01-05 | Proximity Extension Cable | 25-meter signal extension cable | Length: 25000 mm × Diameter approx. 5 mm | Approx. 1.55 kg | Turbine and compressor monitoring |
| 330905-00-21-05-02-CN | Proximity Extension Cable | 21-meter shielded extension cable | Length: 21000 mm × Diameter approx. 5 mm | Approx. 1.35 kg | Rotating machinery |
| 330905-00-20-10-02-00 | Proximity Extension Cable | 20-meter extension cable | Length: 20000 mm × Diameter approx. 5 mm | Approx. 1.30 kg | Industrial monitoring |
10. Recommended Popular Models from the Same Brand
| 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 |
| 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 | Proximity Probe | 8 mm non-contact vibration measurement probe | Length approx. 100 mm | Approx. 0.18 kg | Shaft vibration 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 |
| 3500/22M | Data Interface Module | Machinery data acquisition and communication module | Approx. 120 mm × 40 mm × 130 mm | Approx. 0.85 kg | Monitoring communication |
11. Product Summary
The Bently Nevada 330905-00-25-05-12-CN is a 25-meter proximity probe extension cable assembly designed for the 3300 XL 8 mm Proximity Transducer System.
It provides a reliable electrical connection between proximity probes and monitoring equipment, ensuring accurate transmission of vibration, displacement, and shaft position signals.
The extended cable length makes it suitable for large industrial rotating machinery where long-distance installation is required.
With stable signal performance, strong electromagnetic shielding, durable mechanical construction, and excellent environmental resistance, the product is suitable for turbines, compressors, generators, pumps, motors, and other critical rotating equipment.
The 330905-00-25-05-12-CN supports continuous machinery monitoring, early fault identification, predictive maintenance planning, reduced downtime, improved equipment reliability, and safer industrial operation.