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- 330905-00-21-05-02-CN
- 3300 XL NSv Proximity Probe
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- 21000 mm
- 1.35kg
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Bently Nevada 330905-00-21-05-02-CN Proximity Extension Cable Product Detailed Introduction
1. Product Introduction
The Bently Nevada 330905-00-21-05-02-CN is a precision proximity probe extension cable assembly designed for use with the 3300 XL 8 mm Proximity Transducer System. It is an important connection component used between a proximity probe and the monitoring equipment, providing reliable signal transmission for vibration measurement, shaft displacement monitoring, and rotating machinery protection.
The extension cable is designed to maintain signal stability and measurement accuracy over a long installation distance. It transfers the high-frequency electrical signal generated by the proximity probe to the monitoring system while reducing the influence of external interference and maintaining consistent measurement performance.
This model features a 21-meter cable length, making it suitable for large industrial rotating equipment where the sensor installation location is far away from the monitoring cabinet or signal processing equipment.
The 330905-00-21-05-02-CN is widely applied in critical industrial machinery, including steam turbines, gas turbines, compressors, generators, pumps, motors, and other high-value rotating equipment that require continuous condition monitoring.
The product is designed for harsh industrial environments and provides stable operation under continuous vibration, temperature variation, electromagnetic interference, oil contamination, and mechanical stress.
By ensuring reliable signal transmission between the proximity probe and monitoring equipment, the cable assembly supports accurate detection of shaft vibration, radial displacement, axial movement, and abnormal machine operating conditions.
2. Product Basic Parameters
| Parameter | Specification |
|---|---|
| Model | 330905-00-21-05-02-CN |
| 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 | 21 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: 21000 mm × Cable diameter: approximately 5 mm |
| Weight | Approximately 1.35 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 330905-00-21-05-02-CN belongs to the 3300 XL 8 mm Proximity Transducer System series.
This series is developed 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, allowing the proximity probe to measure shaft movement without physical contact.
The non-contact measurement method eliminates mechanical wear between the sensor and rotating shaft, providing excellent reliability and long-term stability.
During operation, the proximity probe creates a high-frequency electromagnetic field near the shaft surface.
When the shaft moves due to vibration, imbalance, thermal expansion, bearing condition changes, or mechanical alignment problems, the distance between the probe tip and shaft changes.
This distance variation produces an electrical signal that represents the movement of the shaft.
The signal is transmitted through the extension cable to the monitoring equipment, where it is processed and analyzed.
The 3300 XL 8 mm series provides:
- High measurement precision
- Excellent repeatability
- Stable signal transmission
- Long service life
- Strong resistance to industrial environments
- Reliable machinery protection capability
The system consists of several main components:
| Component | Function |
|---|---|
| Proximity Probe | Detects shaft vibration and displacement |
| Extension Cable | Transfers measurement signals over distance |
| Signal Processing Unit | Converts and processes electrical signals |
| Monitoring Module | Analyzes machine condition |
| Protection System | Provides alarms and protective actions |
The 330905-00-21-05-02-CN provides extended connection capability while maintaining measurement reliability.
4. Product Working Principle
The 330905-00-21-05-02-CN functions as part of an eddy current proximity measurement system.
The proximity probe generates an electromagnetic field near the rotating shaft.
When the shaft position changes, the gap between the probe tip and the shaft surface changes accordingly.
Typical causes of shaft movement include:
- Rotor imbalance
- Shaft vibration
- Bearing wear
- Mechanical misalignment
- Thermal expansion
- Operating load changes
The distance variation affects the electromagnetic field and creates a proportional electrical signal.
The extension cable transfers the signal from the proximity probe to the monitoring equipment while maintaining signal integrity.
The monitoring system analyzes the signal and provides information about machine operating conditions.
The collected data can be used for:
- Continuous vibration monitoring
- Shaft displacement measurement
- Rotor position analysis
- Equipment protection
- Predictive maintenance
5. Product Applications
5.1 Steam Turbine Monitoring
Steam turbines require accurate vibration and displacement measurement because rotor movement directly affects equipment reliability.
The 21-meter extension cable allows flexible installation where the sensor is mounted near the turbine while monitoring equipment is installed in a remote location.
5.2 Gas Turbine Applications
Gas turbines operate under high-speed and high-temperature conditions.
The product provides stable signal transmission for turbine vibration monitoring and protection systems.
5.3 Compressor Monitoring
Large compressors require continuous monitoring to identify abnormal vibration conditions.
The extended cable length allows installation flexibility between the compressor sensor and monitoring equipment.
5.4 Generator Monitoring
Generators require reliable rotor condition monitoring.
The extension cable supports accurate transmission of vibration and displacement signals for operational analysis.
5.5 Petrochemical Machinery Monitoring
Petrochemical plants use many large rotating machines operating continuously.
The product provides stable connection performance under conditions involving vibration, oil exposure, temperature changes, and industrial contamination.
5.6 Industrial Rotating Equipment
Typical applications include:
- Centrifugal pumps
- Large motors
- Turbo compressors
- Industrial fans
- High-speed rotating machinery
- Mechanical drive equipment
The product supports continuous monitoring and improves equipment reliability.
6. Product Advantages
Extended Installation Distance
The 21-meter cable length provides excellent flexibility for large industrial machinery where the distance between the sensor and monitoring system is considerable.
Reliable Signal Transmission
The cable assembly maintains stable transmission of proximity signals, ensuring accurate measurement of vibration and displacement.
Strong Electromagnetic Shielding
The shielded construction reduces electrical interference and improves signal quality in industrial environments.
Durable Mechanical Design
The cable assembly is designed to withstand long-term exposure to:
- Mechanical vibration
- Bending stress
- Temperature variation
- Industrial environments
Excellent Environmental Resistance
The product provides reliable operation under:
- Oil contamination
- Moisture
- Temperature changes
- Continuous vibration
- Industrial dust conditions
High Measurement Accuracy
Stable signal transmission improves the accuracy of machinery condition monitoring systems.
Easy Installation and Maintenance
The standardized cable assembly design allows convenient installation, replacement, and system integration.
Supports Predictive Maintenance
Reliable measurement data helps identify machine problems early, reducing unexpected downtime and maintenance costs.
7. Brand and Product Classification
| 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 |
8. Product Technical Features
| Feature | Description |
|---|---|
| Measurement Technology | Eddy current non-contact sensing |
| Cable Length | 21 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 |
9. Recommended Same Series or Related Models
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 330905-00-20-10-02-00 | Extension Cable Assembly | 20-meter proximity extension cable with shielded signal transmission | Length: 20000 mm × Diameter approx. 5 mm | Approx. 1.30 kg | Large machinery 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 | Turbine monitoring |
| 330905-00-17-50-02-CN | Extension Cable Assembly | 17.5-meter proximity extension cable | Length: 17500 mm × Diameter approx. 5 mm | Approx. 1.15 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 equipment monitoring |
| 330103-00-03-10-02-00 | Proximity Probe | 8 mm sensing tip, precision vibration measurement | Probe length approx. 100 mm | Approx. 0.18 kg | Shaft vibration measurement |
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 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, high accuracy 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 applications |
| 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 |
11. Product Summary
The Bently Nevada 330905-00-21-05-02-CN is a 21-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 cable length makes it suitable for large industrial rotating machinery where the sensor installation point is located far away from the monitoring equipment.
With excellent signal stability, strong electromagnetic shielding, durable construction, and reliable industrial performance, the product is widely used in turbines, compressors, generators, pumps, and other critical rotating equipment.
The 330905-00-21-05-02-CN supports machinery protection and predictive maintenance applications by providing accurate operating information, helping improve equipment reliability, reduce unexpected downtime, optimize maintenance planning, and extend the service life of industrial machinery.