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- Bently Nevada
- 86691-01250-0435-15
- Vibration Probe
- USA
- 8 mm× 125 mm × 4350 mm
- 0.36kg
- Xiamen, China
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Bently Nevada 86691-01250-0435-15 Proximity Sensor Product Detailed Introduction and Technical Specification
1. Product Introduction
The 86691-01250-0435-15 is a precision industrial proximity sensor assembly designed for monitoring the operating condition of high-value rotating machinery.
The product is mainly used for accurate measurement of shaft displacement, radial vibration, axial movement, and rotor position changes. It adopts eddy current non-contact sensing technology, allowing the sensor to measure the distance between the probe tip and the rotating shaft without physical contact.
The non-contact measurement principle provides stable and reliable performance during long-term operation. Since the probe does not directly contact the rotating shaft, mechanical wear is eliminated, improving service life and maintaining consistent measurement accuracy.
The 86691-01250-0435-15 is designed for machinery protection and condition monitoring applications where accurate shaft movement detection is required. It is suitable for critical rotating equipment such as steam turbines, gas turbines, compressors, generators, motors, and industrial pumps.
During machine operation, the sensor continuously monitors changes in shaft position and vibration levels. The collected data helps identify abnormal mechanical conditions, including rotor imbalance, shaft misalignment, bearing deterioration, excessive vibration, and mechanical instability.
The product is commonly used in industries where equipment reliability and continuous operation are essential. It provides valuable information for predictive maintenance systems and helps reduce unexpected equipment failures.
The 86691-01250-0435-15 is a configured sensor assembly designed with specific probe dimensions, cable length, and connection characteristics to meet different industrial installation requirements.
2. Brand Information
| Parameter | Description |
|---|---|
| Brand | Bently Nevada |
| Product Category | Industrial Proximity Sensor Assembly |
| Product Type | Eddy Current Displacement Probe |
| Main Function | Shaft displacement and vibration monitoring |
| Measurement Technology | Non-contact eddy current sensing |
| Application Field | Rotating machinery condition monitoring |
| Typical Equipment | Turbines, compressors, generators, pumps, motors |
| Product Position | High reliability machinery protection component |
3. Product Series Information
The 86691-01250-0435-15 belongs to the 86691 Series Proximity Probe Product Family.
The 86691 series is developed for precision monitoring of rotating equipment where accurate shaft position and vibration measurement are required.
The series provides reliable measurement performance for machinery protection systems and predictive maintenance applications.
The product family is mainly designed for applications where small changes in shaft movement can indicate potential equipment problems.
Main features of the 86691 series include:
- Eddy current displacement measurement technology
- Non-contact shaft monitoring
- High sensitivity vibration detection
- Stable analog output signal
- Excellent resistance to industrial vibration
- Wide operating temperature capability
- Long service life
- Flexible probe and cable configurations
- Suitable for critical rotating machinery
The series is commonly used in power generation, industrial processing, petrochemical equipment, and heavy machinery applications.
4. Product Model Explanation
The model number 86691-01250-0435-15 represents a specific configured proximity sensor assembly.
The product code defines several important characteristics, including:
- Probe mechanical structure
- Probe length
- Cable length
- Connection configuration
- Installation requirements
This model is designed with a 125 mm probe configuration and approximately 4.35 m cable arrangement, providing additional installation flexibility for industrial equipment layouts.
The configuration allows the sensor to be installed in applications where the measurement point and monitoring equipment require a certain physical distance.
5. Product Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 86691-01250-0435-15 |
| Product Type | Proximity Sensor Assembly |
| Measurement Principle | Eddy current non-contact displacement measurement |
| Measuring Target | Conductive metal rotating shaft |
| Main Function | Shaft vibration, radial displacement, axial position monitoring |
| Probe Diameter | Approx. 8 mm |
| Probe Length | Approx. 125 mm |
| Cable Length | Approx. 4.35 meters |
| Sensor Configuration | Probe with integrated extension cable |
| Operating Temperature Range | Approx. -35°C to +180°C |
| Signal Output | Analog displacement voltage signal |
| Measurement Accuracy | High precision shaft movement detection |
| Installation Method | Threaded mounting installation |
| Connection Type | Industrial sensor connection configuration |
| Environmental Resistance | Resistant to vibration, temperature variation, and industrial conditions |
| Frequency Response | Suitable for high-speed rotating machinery |
| Application Equipment | Turbines, compressors, generators, pumps, motors |
| Sensor Construction | Industrial probe and cable assembly |
| Dimensions | Approx. 8 mm diameter × 125 mm probe length × 4350 mm cable length |
| Weight | Approx. 0.36 kg |
6. Product Application
6.1 Steam Turbine Monitoring
The 86691-01250-0435-15 is suitable for steam turbine condition monitoring applications.
Steam turbines operate continuously at high rotational speeds, making accurate rotor monitoring essential.
The sensor helps measure:
- Shaft vibration
- Rotor displacement
- Bearing operating condition
- Rotor stability
- Mechanical alignment
Continuous shaft monitoring allows operators to identify abnormal operating conditions before serious mechanical damage occurs.
6.2 Gas Turbine Monitoring
Gas turbines require reliable measurement systems due to their demanding operating environment.
The sensor provides accurate shaft position feedback for turbine protection and condition evaluation.
Typical applications include:
- Rotor displacement monitoring
- Vibration analysis
- Mechanical fault detection
- Equipment protection
The product supports safe turbine operation and improves maintenance efficiency.
6.3 Compressor Condition Monitoring
Compressors are important rotating machines used in industrial processes.
The sensor continuously monitors shaft movement and helps detect mechanical abnormalities.
Applications include:
- Centrifugal compressors
- Process compressors
- High-speed compressors
The sensor helps identify:
- Rotor imbalance
- Shaft misalignment
- Bearing degradation
- Excessive vibration
6.4 Generator Monitoring
Generators require continuous condition monitoring to maintain stable operation.
The sensor provides rotor position information and supports equipment health evaluation.
Typical applications include:
- Industrial generators
- Power generation equipment
- Large rotating electrical machines
6.5 Pump and Motor Monitoring
Industrial pumps and motors often operate under heavy loads.
The sensor helps detect abnormal shaft movement and provides early warning information.
It can identify:
- Bearing wear
- Coupling problems
- Mechanical looseness
- Shaft deformation
This improves equipment reliability and reduces unexpected maintenance.
7. Product Advantages
7.1 High Precision Shaft Measurement
The product provides accurate displacement measurement for rotating machinery.
It can detect small shaft movement changes, making it suitable for critical equipment monitoring.
7.2 Non-contact Measurement Technology
The sensor measures shaft movement without physical contact.
Main advantages include:
- No mechanical friction
- Reduced component wear
- Longer operating life
- Stable measurement accuracy
7.3 Strong Industrial Reliability
The 86691-01250-0435-15 is designed for continuous industrial operation.
It provides stable performance under:
- Mechanical vibration
- Temperature fluctuation
- Long operating periods
- Harsh industrial environments
7.4 Flexible Installation Capability
The 4.35-meter cable configuration provides additional installation flexibility.
It allows installation in machinery layouts where the sensor location and monitoring equipment are separated by distance.
7.5 Supports Predictive Maintenance
The sensor provides continuous machine condition information.
It helps users:
- Detect faults early
- Improve maintenance planning
- Reduce equipment downtime
- Increase operational reliability
8. Recommended Same Series or Related Models
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 86691-01250-0435-15 | Proximity Sensor Assembly | 8 mm probe, 125 mm probe length, 4.35 m cable | Approx. 8 mm diameter × 125 mm probe × 4350 mm cable | 0.36 kg | Critical rotating machinery monitoring |
| 86691-01250-0400-15 | Proximity Sensor Assembly | 8 mm probe, 125 mm probe length, 4 m cable | Approx. 8 mm diameter × 125 mm probe × 4000 mm cable | 0.33 kg | Turbine and compressor monitoring |
| 86691-01250-0400-15-06 | Proximity Sensor Assembly | 8 mm probe, 125 mm probe length, 4 m cable, special configuration | Approx. 8 mm diameter × 125 mm probe × 4000 mm cable | 0.35 kg | Industrial machinery monitoring |
| 86691-00680-0350-90 | Proximity Sensor Assembly | 8 mm probe, 68 mm probe length, 3.5 m cable | Approx. 8 mm diameter × 68 mm probe × 3500 mm cable | 0.28 kg | General rotating equipment |
| 3300 XL 8mm Probe | Eddy Current Probe | High precision shaft displacement measurement | Approx. 8 mm diameter × 85 mm length | 0.23 kg | Turbine and compressor systems |
9. Recommended Popular Models from the Same Brand
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 3500/42M | Vibration Monitoring Module | Four-channel vibration and displacement monitoring | Approx. 120 mm × 50 mm × 120 mm | 0.45 kg | Machinery protection systems |
| 3300 XL 8mm Probe | Proximity Probe | Eddy current measurement, precision shaft monitoring | Approx. 8 mm diameter × 85 mm length | 0.23 kg | Turbine and compressor monitoring |
| 3300 XL Proximitor Sensor | Signal Conditioning Module | Probe signal processing and monitoring output conversion | Approx. 25 mm × 80 mm × 100 mm | 0.30 kg | Industrial monitoring systems |
| 3500/22M | Data Interface Module | Machinery condition monitoring communication interface | Approx. 120 mm × 50 mm × 120 mm | 0.40 kg | Industrial monitoring networks |
| 3500/25 | Keyphasor Module | Rotor phase reference and speed measurement | Approx. 120 mm × 50 mm × 120 mm | 0.42 kg | Rotating equipment synchronization |
10. Product Selection Summary
The 86691-01250-0435-15 is a precision proximity sensor assembly designed for reliable monitoring of critical rotating machinery.
Its eddy current non-contact sensing technology provides accurate shaft displacement measurement while maintaining stable operation in industrial environments.
The product is especially suitable for:
- Steam turbine monitoring
- Gas turbine protection
- Compressor condition monitoring
- Generator vibration analysis
- Industrial pump and motor protection
Main advantages include:
- High measurement accuracy
- Non-contact sensing operation
- Flexible installation design
- Stable signal transmission
- Strong industrial durability
- Long service life
The 86691-01250-0435-15 provides an effective monitoring solution for critical rotating equipment and helps improve machine reliability, reduce maintenance costs, and increase operational safety.