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- 990-05-70-03-05
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Bently Nevada 990-05-70-03-05 Proximity Transducer System Product Introduction, Technical Specifications, Applications, Advantages, Brand and Series
Product Overview
Model: 990-05-70-03-05
The Bently Nevada 990-05-70-03-05 is a compact industrial proximity transducer system designed for continuous monitoring of rotating machinery conditions. It provides accurate measurement of shaft vibration, shaft displacement, rotor position, and relative shaft movement, making it suitable for applications where precise machinery condition information is required.
The product belongs to the 990 Series Proximity Transducer System, which is designed around eddy current non-contact measurement technology. The system detects the distance variation between the probe tip and the rotating shaft surface, converting mechanical movement into electrical signals that can be analyzed by monitoring and protection systems.
The 990-05-70-03-05 is designed for reliable operation in industrial environments where equipment availability, operational safety, and predictive maintenance are important. The compact structure allows installation in locations with limited space while maintaining stable measurement performance.
The system continuously monitors shaft movement and provides valuable operating data for machinery diagnostics, helping identify abnormal conditions such as excessive vibration, rotor instability, misalignment, and mechanical deterioration.
Typical monitored conditions include:
- Shaft vibration amplitude
- Shaft radial displacement
- Rotor movement
- Mechanical stability
- Dynamic shaft behavior
- Rotating equipment operating condition
The product is commonly applied in:
- Steam turbines
- Gas turbines
- Compressors
- Pumps
- Motors
- Generators
- Gearboxes
- Blowers
- Industrial rotating equipment
Brand Information
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product Category | Proximity Transducer System |
| Main Technology | Eddy Current Non-Contact Sensing |
| Primary Function | Shaft Vibration and Displacement Measurement |
| Application Field | Rotating Machinery Monitoring |
| Installation Method | Fixed Industrial Installation |
The brand focuses on industrial machinery monitoring solutions designed to improve equipment reliability, reduce unexpected failures, and support condition-based maintenance strategies.
Product Series Information
990 Series Proximity Transducer System
The 990 Series is a family of proximity measurement systems designed for direct monitoring of rotating shafts.
The series provides accurate shaft movement information by measuring the distance between the sensor probe and the rotating shaft surface.
Compared with traditional vibration measurement methods, direct shaft measurement provides more detailed information about rotor behavior.
Main Features of the 990 Series
- Non-contact shaft measurement
- Eddy current sensing technology
- Compact probe structure
- High measurement stability
- Reliable signal output
- Long service life
- Continuous online monitoring capability
- Low maintenance requirements
- Suitable for harsh industrial environments
The series is widely used in machinery protection and predictive maintenance applications.
Product Description
The 990-05-70-03-05 is a complete proximity transducer solution designed for measuring dynamic shaft movement.
The system consists of:
- Proximity probe
- Extension cable assembly
- Signal conditioning electronics
During operation, the probe generates an electromagnetic field around the sensing tip. When the rotating shaft enters the sensing area, eddy currents are produced on the conductive shaft surface.
Changes in shaft position modify the electromagnetic field. These changes are converted into electrical signals that represent the actual shaft movement.
This allows the system to provide accurate information about:
- Rotor vibration
- Shaft displacement
- Machine operating condition
- Mechanical stability
Because the measurement is completely non-contact, the probe does not experience mechanical wear caused by shaft contact.
Working Principle
The 990-05-70-03-05 uses eddy current displacement measurement technology.
Measurement Process
- The probe creates a high-frequency electromagnetic field.
- The rotating shaft interacts with the electromagnetic field.
- Eddy currents are generated on the shaft surface.
- The distance change modifies the electrical characteristics.
- The electronics convert the change into a measurable signal.
- Monitoring equipment analyzes shaft movement and vibration conditions.
The non-contact principle provides:
- Accurate measurement
- Stable performance
- Long operating life
- Reduced maintenance requirements
- Reliable continuous monitoring
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 990-05-70-03-05 |
| Product Type | Proximity Transducer System |
| Product Series | 990 Series |
| Brand | Bently Nevada |
| Sensor Technology | Eddy Current Non-Contact Measurement |
| Probe Diameter | Approximately 5 mm |
| Measurement Function | Shaft Vibration, Displacement and Position Monitoring |
| Measurement Target | Conductive Rotating Shaft |
| Detection Principle | Electromagnetic Eddy Current |
| Probe Configuration | Compact Industrial Probe |
| Installation Type | Threaded Mounting |
| Signal Output | Dynamic Analog Signal |
| Cable Type | Industrial Extension Cable |
| Housing Material | Stainless Steel / Industrial Alloy |
| Operating Temperature | Approximately -35°C to +177°C |
| Dynamic Response | High-Speed Response |
| Measurement Accuracy | High Precision |
| Signal Stability | Excellent Long-Term Stability |
| Environmental Capability | Industrial Environment Operation |
| Maintenance Requirement | Low Maintenance |
| Dimensions | Approx. 5 mm Probe Diameter; Overall Length Depends on Configuration |
| Weight | Approximately 0.28 kg（kg） |
Detailed Product Specifications
| Technical Item | Specification |
|---|---|
| Model Number | 990-05-70-03-05 |
| Product Category | Machinery Condition Monitoring Sensor |
| Measuring Technology | Eddy Current Technology |
| Probe Type | Compact Non-Contact Probe |
| Measurement Object | Rotating Conductive Shaft |
| Monitoring Mode | Continuous Online Monitoring |
| Output Signal | Analog Dynamic Signal |
| Installation Method | Threaded Probe Installation |
| Mechanical Structure | Compact Industrial Design |
| Probe Housing | Metal Industrial Construction |
| Cable Assembly | Flexible Shielded Extension Cable |
| Operating Environment | Industrial Rotating Equipment |
| Dimensions | Approx. 5 mm Probe Diameter |
| Weight | Approx. 0.28 kg（kg） |
Product Applications
Steam Turbine Monitoring
The 990-05-70-03-05 provides accurate shaft monitoring for steam turbines operating under continuous duty conditions.
It helps monitor:
- Rotor vibration changes
- Shaft displacement
- Rotor stability
- Mechanical operating condition
Continuous measurement helps maintenance teams identify developing problems before serious equipment damage occurs.
Gas Turbine Applications
Gas turbines require precise rotor monitoring due to their high operating speed.
The system supports:
- Shaft position monitoring
- Vibration trend analysis
- Rotor condition evaluation
- Mechanical protection
Compressor Monitoring
Industrial compressors depend on stable rotor operation.
The product helps identify:
- Excessive vibration
- Shaft movement changes
- Rotor imbalance
- Mechanical instability
Pump Condition Monitoring
The proximity transducer provides useful information for pump maintenance.
Applications include:
- Shaft movement detection
- Mechanical wear analysis
- Equipment stability monitoring
- Predictive maintenance
Motor Monitoring
The compact design makes the product suitable for industrial motors.
Typical applications:
- Rotor vibration measurement
- Shaft displacement monitoring
- Motor condition evaluation
- Maintenance planning
Generator Monitoring
Generators require continuous rotor condition monitoring.
The system provides:
- Shaft movement information
- Rotor stability analysis
- Equipment protection data
- Operating condition evaluation
Product Advantages
Compact Installation Structure
The small probe design allows installation in restricted areas.
Advantages:
- Easy integration
- Reduced installation requirements
- Flexible mounting options
Direct Shaft Measurement
The system measures shaft movement directly.
Benefits:
- More accurate rotor information
- Better fault identification
- Improved machinery analysis
Non-Contact Measurement
The probe operates without physical contact.
Advantages:
- No mechanical wear
- Extended service life
- Stable measurement performance
High Measurement Reliability
The system maintains consistent performance during continuous operation.
Benefits:
- Reliable signal output
- Excellent repeatability
- Long-term stability
Supports Predictive Maintenance
Continuous monitoring allows early detection of machine problems.
Benefits:
- Reduced downtime
- Lower maintenance costs
- Improved equipment availability
- Better maintenance scheduling
Industrial Durability
The product is designed for demanding industrial environments.
It can operate under:
- Continuous machine operation
- Mechanical vibration
- Temperature variations
- Industrial working conditions
Recommended Same Series or Related Models
| Model | Product Type | Main Parameters | Dimensions | Weight |
|---|---|---|---|---|
| 990-05-70-01-00 | Proximity Transducer System | 5 mm Probe, Shaft Monitoring | Approx. 5 mm Probe Diameter | Approx. 0.28 kg（kg） |
| 990-05-70-01-01 | Proximity Transducer System | Compact Vibration Monitoring | Approx. 5 mm Probe Diameter | Approx. 0.28 kg（kg） |
| 990-05-70-02-01 | Proximity Transducer System | Shaft Displacement Measurement | Approx. 5 mm Probe Diameter | Approx. 0.28 kg（kg） |
| 990-05-70-02-05 | Proximity Transducer System | Continuous Shaft Monitoring | Approx. 5 mm Probe Diameter | Approx. 0.28 kg（kg） |
| 990-05-70-03-00 | Proximity Transducer System | Shaft Position Monitoring | Approx. 5 mm Probe Diameter | Approx. 0.28 kg（kg） |
Recommended Popular Models from the Same Brand
| Model | Product Type | Main Parameters | Dimensions | Weight |
|---|---|---|---|---|
| 3300 XL 8 mm 330101 Series | Proximity Probe System | 8 mm Eddy Current Probe, High Precision Measurement | Approx. 8 mm Probe Diameter | Approx. 0.35 kg（kg） |
| 3300 XL 11 mm System | Large Shaft Monitoring Probe | 11 mm Probe Configuration | Approx. 11 mm Probe Diameter | Approx. 0.45 kg（kg） |
| 3500/42M Monitor Module | Machinery Monitoring Module | Multi-Channel Vibration Monitoring | Rack Module Structure | Approx. 0.80 kg（kg） |
| 3500/22M Interface Module | Communication Interface Module | Data Communication and Monitoring Interface | Rack Mount Structure | Approx. 1.00 kg（kg） |
| 1900/65A Machinery Monitoring System | Compact Monitoring Device | Multi-Input Machinery Protection | Compact Panel Design | Approx. 0.50 kg（kg） |
Product Comparison Table
| Model | Series | Probe Diameter | Main Function | Dimensions | Weight |
|---|---|---|---|---|---|
| 990-05-70-03-05 | 990 Series | 5 mm | Shaft Vibration and Displacement Monitoring | Approx. 5 mm Probe Diameter | Approx. 0.28 kg（kg） |
| 990-05-70-03-00 | 990 Series | 5 mm | Shaft Condition Monitoring | Approx. 5 mm Probe Diameter | Approx. 0.28 kg（kg） |
| 990-05-70-02-05 | 990 Series | 5 mm | Rotor Position Monitoring | Approx. 5 mm Probe Diameter | Approx. 0.28 kg（kg） |
| 990-05-70-02-01 | 990 Series | 5 mm | Shaft Displacement Measurement | Approx. 5 mm Probe Diameter | Approx. 0.28 kg（kg） |
| 3300 XL 8 mm | 3300 XL Series | 8 mm | High Precision Shaft Monitoring | Approx. 8 mm Probe Diameter | Approx. 0.35 kg（kg） |
Product Summary
The 990-05-70-03-05 is a compact and dependable proximity transducer system designed for continuous monitoring of shaft vibration, displacement, and rotor position in industrial rotating machinery.
Belonging to the 990 Series, it provides accurate non-contact measurement through eddy current sensing technology and delivers reliable performance for demanding industrial applications.
The major advantages include:
- Compact 5 mm probe design
- Accurate shaft movement measurement
- Non-contact sensing operation
- Excellent signal stability
- High measurement repeatability
- Long operating life
- Low maintenance requirements
- Strong industrial reliability
The product is suitable for turbines, compressors, pumps, motors, generators, gearboxes, and other rotating equipment where accurate shaft monitoring is required to improve equipment reliability, reduce unexpected failures, optimize maintenance activities, and maintain stable industrial operation.