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Model: 990-04-70-02-00
The Bently Nevada 990-04-70-02-00 is an industrial proximity transducer system designed for accurate and continuous monitoring of rotating machinery operating conditions. It is mainly used for measuring shaft vibration, radial displacement, and mechanical movement in critical rotating equipment.
This model belongs to the 990 Series Proximity Transducer System, which is designed for industrial machinery condition monitoring applications requiring stable measurement, long operating life, and reliable signal performance.
The 990-04-70-02-00 uses eddy current non-contact measurement technology. The probe detects changes in the distance between the sensor tip and the rotating shaft surface without direct contact, allowing accurate measurement while avoiding mechanical wear caused by friction.
The product is commonly installed on high-value rotating equipment, including turbines, compressors, pumps, motors, and generators. By continuously monitoring shaft movement and vibration characteristics, it helps maintenance teams identify potential mechanical problems before equipment damage occurs.
The 990-04-70-02-00 is suitable for machinery protection systems and predictive maintenance applications where accurate vibration information is essential for improving equipment reliability.
Bently Nevada products are widely used in industrial machinery condition monitoring systems, especially in applications requiring vibration analysis, shaft displacement measurement, and rotating equipment protection.
The product range includes:
These products are mainly applied in industries such as:
The 990 Series is a family of proximity measurement systems designed specifically for rotating machinery monitoring.
The series uses eddy current technology to provide non-contact shaft measurement. It is designed for applications where equipment operation reliability and measurement accuracy are critical.
Main characteristics of the 990 Series include:
The 990-04-70-02-00 consists of a proximity probe and associated cable assembly designed for industrial machinery monitoring.
The probe operates by generating an electromagnetic field near the rotating shaft. When the shaft moves closer or farther away from the probe tip, the electromagnetic field changes.
These changes are converted into electrical signals representing the actual shaft movement.
The monitoring system can analyze these signals to determine:
Because the probe does not physically touch the rotating shaft, the system provides:
| Parameter | Specification |
|---|---|
| Model | 990-04-70-02-00 |
| Product Type | Proximity Transducer System |
| Product Series | 990 Series |
| Sensor Technology | Eddy Current Non-Contact Measurement |
| Measurement Method | Shaft displacement measurement |
| Main Function | Rotating machinery vibration monitoring |
| Sensor Type | Proximity Probe |
| Probe Diameter | Approximately 8 mm |
| Installation Method | Threaded mounting |
| Measurement Target | Rotating shaft surface |
| Signal Output | Dynamic vibration displacement signal |
| Application Type | Continuous condition monitoring |
| Compatible Equipment | Turbines, compressors, pumps, motors, generators |
| Housing Material | Industrial stainless steel structure |
| Cable Type | Flexible industrial extension cable |
| Operating Temperature | Approximately -35°C to +177°C depending on installation conditions |
| Environmental Capability | Suitable for industrial environments |
| Accuracy | High precision shaft movement measurement |
| Response Performance | Suitable for high-speed rotating machinery |
| Dimensions | Approximate probe diameter 8 mm; total length depends on cable configuration |
| Weight | Approximately 0.30 kg(kg) |
Steam turbines require continuous monitoring because rotor problems can lead to serious equipment failures.
The 990-04-70-02-00 provides accurate shaft vibration measurement and helps detect early signs of:
The system allows operators to monitor turbine operating conditions and improve maintenance planning.
Gas turbines operate under high temperature and high-speed conditions.
The proximity transducer system provides reliable shaft movement measurement, helping operators maintain stable operation.
It can be used for monitoring:
Large compressors require accurate vibration monitoring to maintain production reliability.
The product helps detect:
Early detection allows maintenance teams to take corrective action before major failures occur.
Industrial pumps often operate continuously under demanding conditions.
The 990-04-70-02-00 helps monitor pump shaft movement and provides important information for detecting:
Large motors and generators require stable operation for industrial production.
The product provides accurate vibration signals that support equipment protection and predictive maintenance strategies.
The product provides precise shaft displacement measurement through eddy current technology.
It can detect small changes in shaft position, making it suitable for early fault detection.
The sensor operates without physical contact with rotating components.
Advantages include:
The product provides consistent measurement signals during continuous operation.
This improves the reliability of machinery monitoring systems.
The system is designed for applications where unexpected equipment shutdowns may cause significant losses.
It is suitable for:
Continuous monitoring allows users to analyze equipment conditions and arrange maintenance based on actual operating status.
Benefits include:
The product is designed for demanding environments and provides reliable performance under continuous operating conditions.
| Technical Item | Detailed Specification |
|---|---|
| Model | 990-04-70-02-00 |
| Series | 990 Series |
| Product Category | Machinery Condition Monitoring Sensor |
| Measurement Technology | Eddy Current Proximity Sensing |
| Probe Type | Non-contact displacement probe |
| Probe Diameter | 8 mm class |
| Measurement Application | Shaft vibration and position monitoring |
| Installation Style | Threaded industrial installation |
| Signal Output | Dynamic displacement signal |
| Cable Configuration | Industrial extension cable assembly |
| Operating Temperature | Approx. -35°C to +177°C |
| Sensor Housing | Industrial metal housing |
| Maintenance Requirement | Low maintenance |
| Application Environment | Heavy industrial rotating equipment |
| Measurement Accuracy | High precision displacement measurement |
| Dimensions | Approx. 8 mm probe diameter; length varies according to configuration |
| Weight | Approx. 0.30 kg(kg) |
| Model | Product Type | Main Parameters | Application | Dimensions | Weight |
|---|---|---|---|---|---|
| 990-04-70-01-00 | Proximity Transducer System | 8 mm probe, shaft vibration monitoring, eddy current sensing | Turbines and compressors | Approx. 8 mm probe diameter | Approx. 0.30 kg(kg) |
| 990-04-70-01-CN | Proximity Transducer System | 8 mm probe configuration, industrial vibration measurement | Rotating machinery protection | Approx. 8 mm probe diameter | Approx. 0.30 kg(kg) |
| 990-04-50-02-00 | Proximity Transducer System | Standard 8 mm proximity measurement system | Pumps and motors | Approx. 8 mm probe diameter | Approx. 0.30 kg(kg) |
| 990-05-70-02-00 | Proximity Transducer System | 5 mm probe design, compact shaft monitoring | Small rotating equipment | Approx. 5 mm probe diameter | Approx. 0.28 kg(kg) |
| 3300 XL 8 mm Proximity Probe System | Proximity Sensor System | 8 mm eddy current probe technology, high accuracy measurement | Industrial machinery | Approx. 8 mm probe diameter | Approx. 0.35 kg(kg) |
| Model | Product Type | Main Parameters | Application | Dimensions | Weight |
|---|---|---|---|---|---|
| 3300 XL 8 mm 330101 Series | Proximity Probe | 8 mm sensing diameter, high accuracy shaft vibration monitoring | Turbines, compressors | Approx. 8 mm probe diameter | Approx. 0.35 kg(kg) |
| 3300 XL 11 mm Proximity Probe System | Large Shaft Proximity Sensor | 11 mm probe design, suitable for larger rotating shafts | Heavy machinery | Approx. 11 mm probe diameter | Approx. 0.45 kg(kg) |
| 3500/42M Vibration Monitor Module | Machinery Monitoring Module | Multi-channel vibration monitoring, machinery protection function | Large rotating equipment | Rack-mounted module structure | Approx. 0.80 kg(kg) |
| 3500/22M Interface Module | Communication Interface Module | Data acquisition and monitoring system communication | Industrial monitoring systems | Standard rack module size | Approx. 1.00 kg(kg) |
| 1900/65A Machinery Monitoring System | Compact Monitoring Device | Multi-channel vibration monitoring, compact installation | Small and medium equipment | Compact panel mounting structure | Approx. 0.50 kg(kg) |
| Model | Series | Measurement Technology | Main Advantage | Dimensions | Weight |
|---|---|---|---|---|---|
| 990-04-70-02-00 | 990 Series | Eddy Current Technology | Stable shaft vibration monitoring | Approx. 8 mm probe diameter | Approx. 0.30 kg(kg) |
| 990-04-70-01-00 | 990 Series | Eddy Current Technology | Standard proximity measurement | Approx. 8 mm probe diameter | Approx. 0.30 kg(kg) |
| 990-05-70-02-00 | 990 Series | Eddy Current Technology | Compact vibration measurement | Approx. 5 mm probe diameter | Approx. 0.28 kg(kg) |
| 3300 XL 8 mm | 3300 XL Series | Eddy Current Technology | High precision shaft monitoring | Approx. 8 mm probe diameter | Approx. 0.35 kg(kg) |
| 3500/42M | 3500 Series | Digital Monitoring Technology | Advanced vibration protection module | Rack module design | Approx. 0.80 kg(kg) |
The 990-04-70-02-00 is a reliable industrial proximity transducer system designed for rotating machinery condition monitoring.
As a member of the 990 Series, it provides accurate shaft vibration and displacement measurement through proven eddy current non-contact sensing technology.
The main advantages of this product include:
The product is suitable for applications requiring continuous monitoring of critical rotating equipment. It helps users improve equipment reliability, reduce unexpected failures, optimize maintenance schedules, and maintain stable industrial operations.