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- Bently Nevada
- 330881-28-04-180-06-02
- PROXPAC XL Proximity Transducer Assembly
- USA
- 8 mm
- 0.4kg
- Xiamen, China
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Bently Nevada 330881-28-04-180-06-02 Proximity Probe Assembly Product Overview
1. Product Introduction
The Bently Nevada 330881-28-04-180-06-02 is a high-performance proximity probe assembly designed for continuous monitoring of rotating machinery operating conditions. It is part of the 3300 XL Proximity Transducer System series and is mainly used for measuring shaft vibration, radial displacement, and rotor position changes in critical industrial equipment.
The product uses eddy current sensing technology, which provides accurate non-contact measurement between the probe tip and the rotating shaft. By detecting changes in the electromagnetic field caused by variations in the shaft-to-probe gap, the sensor generates a stable output signal representing actual shaft movement.
The 330881-28-04-180-06-02 is designed for machinery protection and condition monitoring applications where measurement accuracy, signal stability, and long operating life are essential. It is commonly installed on large rotating machines that require continuous monitoring to prevent unexpected failures and improve maintenance efficiency.
The product consists of a precision proximity probe and an extension cable assembly. The extended cable configuration allows flexible installation between the sensing location and the monitoring equipment, making it suitable for machinery layouts where longer installation distances are required.
The sensor is widely used on steam turbines, gas turbines, compressors, generators, pumps, and large industrial motors. These machines require accurate shaft position and vibration monitoring because changes in rotor movement can indicate mechanical imbalance, bearing problems, misalignment, or other developing faults.
The non-contact measurement principle allows the sensor to operate without physical contact with the rotating shaft. This eliminates mechanical wear, improves measurement consistency, and provides reliable performance during long-term operation.
The 330881-28-04-180-06-02 provides a reliable sensing solution for rotating machinery monitoring systems requiring accurate displacement measurement and stable long-distance signal transmission.
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2. Product Basic Information
| Item | Description |
|---|---|
| Model | Bently Nevada 330881-28-04-180-06-02 |
| 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 displacement and vibration 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 |
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3. Detailed Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 330881-28-04-180-06-02 |
| Product Series | 3300 XL Proximity Transducer System |
| Sensor Type | Eddy Current Proximity Probe Assembly |
| Probe Diameter | Approximately 8 mm |
| Probe Type | Industrial threaded proximity probe |
| Measurement Principle | Eddy current electromagnetic sensing |
| Measurement Method | Non-contact shaft displacement measurement |
| Measurement Target | Radial vibration, axial position, rotor movement |
| 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 1.8 meters |
| Cable Configuration | Probe with extension cable assembly |
| Connector Type | Industrial proximity system connector |
| Mounting Method | Threaded mechanical installation |
| 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 analog output |
| Application Equipment | Turbines, compressors, generators, pumps, motors |
| Dimensions | Approx. 8 mm probe diameter × 80 mm probe body + 1.8 m cable |
| Weight | Approximately 0.40 kg |
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4. Product Structure Description
Proximity Probe Sensing Element
The proximity probe is the main measurement component responsible for detecting shaft movement.
The probe generates a high-frequency electromagnetic field near the rotating shaft. When the shaft position changes, the distance between the probe tip and shaft surface changes, creating variations in the electromagnetic field.
These changes are converted into electrical signals used by monitoring systems to evaluate machinery operating conditions.
Main characteristics:
- High accuracy displacement measurement
- Non-contact sensing operation
- Excellent signal stability
- High repeatability
- Long operating lifetime
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Extension Cable Assembly
The extension cable provides the connection between the proximity probe and the monitoring system.
The 1.8 meter cable configuration allows installation flexibility when the monitoring electronics are located away from the sensing point.
Main functions:
- Reliable signal transmission
- Flexible equipment installation
- Stable electrical performance
- Improved system layout flexibility
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Mechanical Mounting Structure
The probe assembly uses an industrial mounting design suitable for demanding machinery environments.
Main features:
- Secure installation
- Vibration resistance
- Accurate sensor positioning
- Long-term mechanical stability
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Monitoring System Integration
The product can be integrated into machinery protection and condition monitoring systems.
It provides information including:
- Shaft vibration levels
- Rotor displacement changes
- Mechanical operating condition
- Equipment health trends
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5. Product Applications
Steam Turbine Monitoring
Steam turbines require accurate shaft monitoring to maintain safe and efficient operation.
The product supports measurement of:
- Shaft displacement
- Rotor vibration
- Position changes
- Mechanical stability
Continuous monitoring helps identify abnormal operating conditions before serious failures occur.
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Gas Turbine Applications
Gas turbines operate under high-speed and demanding conditions.
The product helps monitor:
- Rotor movement
- Shaft position
- Vibration changes
- Mechanical performance
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Compressor Condition Monitoring
Compressors are critical machines that require reliable vibration measurement.
The product assists in detecting:
- Excessive vibration
- Rotor instability
- Mechanical imbalance
- Shaft movement changes
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Generator Monitoring
Generators require accurate rotor monitoring for reliable operation.
The product provides measurement capability for:
- Rotor position
- Shaft movement
- Mechanical stability
- Operating condition evaluation
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Pumps and Motors
Industrial pumps and motors benefit from continuous condition monitoring.
The product helps identify:
- Shaft imbalance
- Mechanical looseness
- Increasing vibration
- Equipment deterioration
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6. Product Advantages
High Precision Measurement Capability
The product provides accurate shaft displacement measurement through proven eddy current sensing technology.
It can detect small changes in shaft movement and provide reliable monitoring data for machinery analysis.
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Non-Contact Sensing Technology
The sensor operates without direct physical contact with rotating components.
Advantages include:
- No mechanical wear
- Extended service life
- Stable measurement performance
- Reduced maintenance requirements
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Extended Cable Installation Flexibility
The 1.8 meter cable configuration provides additional installation flexibility.
Benefits:
- Suitable for larger machinery layouts
- Easier connection arrangement
- Reduced installation limitations
- Improved system configuration flexibility
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Reliable Long-Term Operation
The product is designed for continuous industrial applications.
It provides stable performance during long operating periods.
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Strong Environmental Durability
The sensor can operate in demanding industrial environments.
It provides reliable performance under:
- Continuous vibration
- Temperature fluctuations
- Heavy machinery operation
- Long working cycles
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Improved Machinery Protection
The product provides important information for early fault detection.
It supports:
- Predictive maintenance
- Equipment condition analysis
- Reduced downtime
- Improved operational reliability
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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 |
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8. Product Series Information
3300 XL Proximity Transducer System Series
The 3300 XL Proximity Transducer System series is designed for monitoring critical rotating machinery requiring accurate shaft vibration and displacement measurement.
The series provides reliable sensing technology for machinery protection, condition monitoring, and predictive maintenance applications.
Main features:
- Eddy current non-contact sensing technology
- High measurement accuracy
- Stable signal output
- Excellent repeatability
- Strong environmental resistance
- Long operating service life
The 330881-28-04-180-06-02 belongs to the 3300 XL proximity probe assembly family.
This model is designed for applications requiring extended cable installation, accurate shaft measurement, and reliable continuous monitoring.
It provides a dependable sensing solution for large rotating equipment operating in industrial environments.
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9. Recommended Same Series or Related Models
| Model | Series | Main Parameters | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330881-28-04-180-06-02 | 3300 XL Proximity Probe Series | 8 mm proximity probe with 1.8 m extension cable | Approx. 8 mm diameter × 80 mm probe + 1.8 m cable | 0.40 kg |
| 330881-28-00-050-03-02 | 3300 XL Proximity Probe Series | 8 mm proximity probe with 0.5 m cable | Approx. 8 mm diameter × 80 mm probe + 0.5 m cable | 0.30 kg |
| 330801-28-00-050-03-02 | 3300 XL Proximity Probe Series | Industrial proximity probe assembly | Approx. 8 mm diameter × 80 mm probe + 0.5 m cable | 0.30 kg |
| 330780-X1-00 | 3300 XL Proximity Transducer Series | Precision proximity transducer sensor | Approx. 8 mm diameter × 80 mm probe with cable assembly | 0.35 kg |
| 330752-60-02 | 3300 XL Proximity Transducer Series | Extended cable proximity sensor assembly | Approx. 8 mm diameter × 80 mm probe + 6 m cable | 0.65 kg |
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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 systems | 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 |
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11. Product Selection Summary
The Bently Nevada 330881-28-04-180-06-02 is a precision proximity probe assembly designed for accurate monitoring of rotating machinery conditions.
The product combines advanced eddy current sensing technology with an extended cable configuration, providing reliable shaft displacement measurement and flexible installation capability.
It is suitable for critical rotating equipment including turbines, compressors, generators, pumps, and industrial motors.
Main advantages:
- High precision shaft displacement monitoring
- Non-contact measurement technology
- Extended cable installation flexibility
- Stable signal transmission
- Strong industrial durability
- Long operating service life
As part of the 3300 XL Proximity Transducer System series, the 330881-28-04-180-06-02 provides a dependable sensing solution for machinery condition monitoring, predictive maintenance, and rotating equipment protection applications.