1. Product Introduction
The Bently Nevada 330801-28-00-050-03-02 is a high-precision proximity probe assembly designed for monitoring the condition and operating performance of critical rotating machinery. It belongs to the 3300 XL Proximity Transducer System series and is mainly used for measuring shaft vibration, radial displacement, and position changes in industrial rotating equipment.
The product uses eddy current sensing technology to provide accurate, non-contact measurement between the probe tip and the rotating shaft. This sensing method detects changes in the electromagnetic field caused by variations in the distance between the probe and the shaft surface, allowing continuous and reliable shaft movement monitoring.
The 330801-28-00-050-03-02 is designed for applications where high measurement accuracy, stable signal output, and long-term operating reliability are required. It is commonly integrated into machinery protection systems to provide essential information for vibration analysis, equipment condition evaluation, and predictive maintenance programs.
The proximity probe assembly is widely used on large and critical rotating machinery such as steam turbines, gas turbines, compressors, generators, pumps, and industrial motors. These machines require continuous monitoring because excessive shaft vibration, displacement changes, or rotor movement can indicate mechanical problems that may lead to equipment failure.
The product configuration provides flexibility for installation in industrial environments. The probe assembly design allows reliable operation in applications where sensor accuracy, mechanical stability, and environmental resistance are important factors.
The non-contact measurement principle eliminates direct physical contact with the rotating shaft. This reduces mechanical wear, improves measurement consistency, and allows the sensor to maintain stable performance over extended operating periods.
The 330801-28-00-050-03-02 provides a dependable sensing solution for machinery condition monitoring, vibration protection, and rotating equipment performance analysis.
<br>
2. Product Basic Information
| Item |
Description |
| Model |
Bently Nevada 330801-28-00-050-03-02 |
| Brand |
Bently Nevada |
| Product Series |
3300 XL Proximity Transducer System |
| Product Type |
Proximity Probe Assembly |
| Sensor Technology |
Eddy Current Non-contact Measurement |
| Main Function |
Shaft vibration and displacement monitoring |
| Measurement Method |
Electromagnetic gap measurement |
| Installation Type |
Threaded industrial mounting |
| Application Field |
Rotating machinery condition monitoring |
| Output Signal |
Analog proportional displacement signal |
| Main Purpose |
Machinery protection and predictive maintenance |
| Typical Equipment |
Turbines, compressors, generators, pumps, motors |
<br>
3. Detailed Technical Parameters
| Parameter |
Specification |
| Model |
330801-28-00-050-03-02 |
| Product Series |
3300 XL Proximity Transducer System |
| Sensor Type |
Eddy Current Proximity Probe Assembly |
| Probe Diameter |
Approximately 8 mm |
| Probe Design |
Industrial proximity sensing probe |
| Measurement Principle |
Eddy current electromagnetic field measurement |
| Measurement Method |
Non-contact shaft displacement detection |
| Measurement Target |
Radial vibration, shaft position, rotor displacement |
| Sensitivity |
Approximately 7.87 V/mm |
| Operating Voltage |
-24 VDC nominal |
| Output Signal |
Voltage proportional to probe gap distance |
| Frequency Response |
Suitable for high-speed rotating machinery |
| Accuracy |
High precision displacement measurement |
| Probe Material |
Stainless steel industrial alloy |
| Extension Cable Length |
Approximately 0.5 meter |
| Total Cable Configuration |
Probe with extension cable assembly |
| Connector Type |
Industrial proximity system connector |
| Mounting Thread |
Standard industrial threaded mounting |
| Operating Temperature |
Approximately -40°C to +177°C depending on installation conditions |
| Environmental Capability |
Resistant to vibration, temperature variation, and industrial environments |
| Signal Stability |
Stable continuous measurement output |
| Application Equipment |
Turbines, compressors, generators, pumps, motors |
| Dimensions |
Approx. 8 mm probe diameter × 80 mm probe body + 0.5 m cable |
| Weight |
Approximately 0.30 kg |
<br>
4. Product Structure Description
Proximity Probe Sensor Element
The proximity probe is the main sensing component responsible for detecting shaft movement.
The probe generates a high-frequency electromagnetic field near the rotating shaft. When the shaft moves, the distance between the shaft surface and the probe tip changes, creating measurable variations in the electromagnetic field.
These changes are converted into electrical signals that represent actual shaft displacement.
Main characteristics:
- High precision measurement capability
- Non-contact sensing operation
- Stable output performance
- Excellent repeatability
- Long service life
<br>
Extension Cable Assembly
The extension cable provides the connection between the proximity probe and the monitoring system.
The cable assembly allows flexible installation while maintaining signal accuracy and reliability.
Main functions:
- Stable signal transmission
- Flexible installation distance
- Reliable electrical connection
- Reduced installation limitations
<br>
Mechanical Mounting Structure
The probe assembly includes a mechanical design suitable for industrial equipment installation.
The mounting structure provides:
- Secure sensor positioning
- Resistance against mechanical vibration
- Stable long-term installation
- Reliable operation under industrial conditions
<br>
Monitoring System Integration
The product can be integrated with machinery monitoring systems to provide continuous operating condition information.
It supports:
- Shaft vibration analysis
- Rotor displacement monitoring
- Equipment condition assessment
- Machinery protection functions
<br>
5. Product Applications
Steam Turbine Monitoring
Steam turbines require accurate shaft monitoring to maintain safe and efficient operation.
The product helps detect:
- Shaft vibration changes
- Rotor displacement
- Mechanical imbalance
- Abnormal operating conditions
Continuous monitoring helps reduce unexpected failures and improve maintenance planning.
<br>
Gas Turbine Applications
Gas turbines operate under high-speed and high-temperature conditions.
The product provides:
- Rotor movement monitoring
- Shaft position measurement
- Vibration condition evaluation
- Mechanical performance analysis
<br>
Compressor Condition Monitoring
Compressors require reliable monitoring because mechanical faults can affect production reliability.
The product helps identify:
- Excessive shaft vibration
- Rotor instability
- Alignment problems
- Mechanical degradation
<br>
Generator Monitoring
Generators require precise rotor condition measurement.
The product supports monitoring of:
- Rotor displacement
- Shaft movement
- Mechanical stability
- Operating condition changes
<br>
Pumps and Industrial Motors
Large pumps and motors benefit from continuous shaft monitoring.
The product helps detect:
- Shaft imbalance
- Mechanical looseness
- Increased vibration
- Equipment wear
<br>
6. Product Advantages
High Measurement Accuracy
The product provides accurate shaft displacement measurement through advanced eddy current sensing technology.
It can detect small changes in shaft position and provide reliable information for machinery condition analysis.
<br>
Non-Contact Operating Principle
The sensor operates without direct contact with rotating components.
Advantages include:
- No mechanical wear
- Extended service life
- Improved measurement stability
- Reduced maintenance requirements
<br>
Compact Installation Design
The product configuration supports installation in machinery where space and sensor positioning are important.
Benefits include:
- Flexible installation arrangement
- Easy system integration
- Suitable for different equipment layouts
<br>
Stable Long-Term Performance
The product is designed for continuous industrial operation.
It maintains reliable output signals during long operating cycles.
<br>
Strong Environmental Resistance
The sensor is suitable for demanding industrial environments.
It can operate under:
- Continuous vibration
- Temperature fluctuations
- Heavy machinery conditions
- Long-term operating cycles
<br>
Improved Machinery Protection
The product provides early detection capability for abnormal equipment conditions.
It supports:
- Predictive maintenance
- Fault diagnosis
- Reduced downtime
- Improved equipment reliability
<br>
7. Brand Information
| Item |
Description |
| Brand |
Bently Nevada |
| Industry Field |
Industrial Machinery Monitoring |
| Main Product Categories |
Proximity Sensors, Vibration Monitoring Equipment, Machinery Protection Systems |
| Application Industries |
Energy, Manufacturing, Heavy Industry, Process Equipment |
| Product Characteristics |
High accuracy, reliable operation, industrial durability |
<br>
8. Product Series Information
3300 XL Proximity Transducer System Series
The 3300 XL Proximity Transducer System series is designed for accurate monitoring of rotating machinery where continuous shaft vibration and displacement measurement are required.
The series provides reliable sensing technology for industrial machinery protection and condition monitoring.
Main features:
- Eddy current non-contact sensing technology
- High measurement accuracy
- Stable signal output
- Excellent repeatability
- Strong environmental resistance
- Long operating service life
The 330801-28-00-050-03-02 belongs to the 3300 XL proximity probe assembly family.
This product is designed for applications requiring reliable shaft measurement, stable signal transmission, and flexible installation capability.
It provides a practical solution for monitoring critical rotating machinery in industrial environments.
<br>
9. Recommended Same Series or Related Models
| Model |
Series |
Main Parameters |
Dimensions |
Weight (kg) |
| 330801-28-00-050-03-02 |
3300 XL Proximity Probe Series |
8 mm proximity probe assembly with 0.5 m cable configuration |
Approx. 8 mm diameter × 80 mm probe + 0.5 m cable |
0.30 kg |
| 330704-00-050-10-02-05 |
3300 XL Proximity Probe Series |
Compact 8 mm probe assembly |
Approx. 8 mm diameter × 80 mm probe + 0.5 m cable |
0.28 kg |
| 330707-00-10-10-02-00 |
3300 XL Proximity Probe Series |
Industrial proximity probe assembly |
Approx. 8 mm diameter × 80 mm probe + 1 m cable |
0.32 kg |
| 330780-X0-00 |
3300 XL Proximity Transducer Series |
Precision proximity transducer sensor |
Approx. 8 mm diameter × 80 mm probe with cable assembly |
0.35 kg |
| 330780-X1-00 |
3300 XL Proximity Transducer Series |
Enhanced proximity transducer sensor |
Approx. 8 mm diameter × 80 mm probe with cable assembly |
0.35 kg |
<br>
10. Recommended Popular Models From The Same Brand
| Model |
Series |
Main Parameters |
Dimensions |
Weight (kg) |
| 3500/42M 140734-01 |
3500 Monitoring System |
Four-channel vibration monitoring module supporting proximity inputs |
Approx. 241 mm × 24 mm × 119 mm |
0.60 kg |
| 3500/22M 138607-01 |
3500 Monitoring System |
Machinery communication interface module |
Approx. 241 mm × 24 mm × 119 mm |
0.55 kg |
| 330180-50-00 |
3300 XL Series |
High precision 8 mm proximity probe |
Approx. 8 mm diameter × 1000 mm length |
0.27 kg |
| 330130-040-00-00 |
3300 XL Cable Series |
Extension cable for proximity monitoring system |
Approx. 4000 mm cable length |
0.20 kg |
| 3300 XL 8 mm Proximity Probe |
3300 XL Series |
Standard industrial proximity sensing component |
Approx. 8 mm diameter × different length options |
0.25 kg |
<br>
11. Product Selection Summary
The Bently Nevada 330801-28-00-050-03-02 is a precision proximity probe assembly designed for accurate monitoring of rotating machinery conditions.
The product uses eddy current non-contact sensing technology to provide stable shaft displacement and vibration measurement. Its compact cable configuration allows flexible installation while maintaining reliable measurement performance.
The product is suitable for critical rotating equipment including turbines, compressors, generators, pumps, and motors.
Main advantages:
- High precision shaft displacement monitoring
- Non-contact measurement technology
- Stable signal output
- Flexible installation capability
- Strong industrial durability
- Long operating service life
As part of the 3300 XL Proximity Transducer System series, the 330801-28-00-050-03-02 provides a dependable sensing solution for machinery condition monitoring, predictive maintenance, and rotating equipment protection applications.
