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- Bently Nevada
- 86691-00680-0350-90
- Vibration Probe
- USA
- 8 mm × 68 mm × 3500 mm
- 0.28kg
- Xiamen, China
- New & In Stock
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Bently Nevada 86691-00680-0350-90 Proximity Sensor Product Detailed Introduction and Technical Specification
1. Product Introduction
The 86691-00680-0350-90 is a high-performance industrial proximity sensor assembly designed for precision monitoring of rotating machinery operating conditions.
The product is mainly used for measuring shaft displacement, vibration movement, and rotor position changes in critical industrial equipment. It uses eddy current non-contact sensing technology, allowing accurate measurement between the sensor probe and the rotating shaft surface without physical contact.
The non-contact measurement principle provides excellent stability during continuous operation. It reduces mechanical wear, improves measurement consistency, and allows the sensor to perform reliably in demanding industrial environments.
The 86691-00680-0350-90 is designed for applications where accurate shaft position monitoring and reliable vibration measurement are required. It is widely used in large rotating equipment such as turbines, compressors, generators, motors, pumps, and industrial drive systems.
The sensor provides continuous measurement data for machinery protection and condition monitoring systems. It helps detect early signs of mechanical problems, including excessive vibration, shaft misalignment, rotor instability, bearing degradation, and abnormal machine movement.
The product is especially suitable for industries where equipment availability and operational reliability are critical. Through continuous monitoring, it supports predictive maintenance strategies and helps reduce unexpected equipment shutdowns.
The 86691-00680-0350-90 represents a configured sensor assembly designed for specific installation requirements, including probe dimensions, cable length, connector configuration, and mounting conditions.
2. Brand Information
| Parameter | Description |
|---|---|
| Brand | Bently Nevada |
| Product Category | Industrial Proximity Sensor Assembly |
| Product Type | Eddy Current Displacement Sensor |
| 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 86691-00680-0350-90 belongs to the 86691 Series Proximity Probe Product Family.
The 86691 series is designed for advanced rotating machinery monitoring applications requiring accurate shaft displacement measurement and stable vibration detection.
This series focuses on providing reliable mechanical movement information for machinery protection systems. It is commonly used in critical equipment where abnormal shaft movement can indicate potential failures.
The 86691 series features:
- Eddy current displacement measurement technology
- High accuracy shaft position detection
- Non-contact measurement structure
- Stable signal output
- High resistance to vibration
- Industrial temperature resistance
- Long operating service life
- Flexible configuration options
The series is suitable for demanding applications including power generation equipment, industrial compressors, petrochemical machinery, and heavy rotating equipment.
4. Product Model Explanation
The model number 86691-00680-0350-90 represents a configured proximity sensor assembly.
The product code typically identifies different configuration parameters, including:
- Probe mechanical design
- Probe length
- Cable length
- Extension configuration
- Connector arrangement
- Installation requirements
The 86691-00680-0350-90 configuration is designed for applications requiring a specific probe and cable combination for integration into machinery monitoring systems.
The long cable configuration allows installation flexibility where the sensor location and monitoring equipment are separated by distance.
5. Product Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 86691-00680-0350-90 |
| Product Type | Proximity Sensor Assembly |
| Measurement Principle | Eddy current non-contact displacement measurement |
| Measuring Target | Conductive rotating shaft surface |
| Main Function | Shaft vibration, displacement, and position monitoring |
| Probe Diameter | Approx. 8 mm |
| Probe Length | Approx. 68 mm |
| Cable Length | Approx. 3.5 meters |
| Connector Type | Industrial sensor connection configuration |
| Operating Temperature Range | Approx. -35°C to +180°C |
| Signal Output | Analog displacement voltage signal |
| Measurement Accuracy | High precision shaft movement measurement |
| Installation Method | Threaded mounting installation |
| Environmental Resistance | Resistant to vibration, temperature changes, industrial environments |
| Frequency Response | Suitable for high-speed rotating equipment |
| Application Equipment | Turbines, compressors, generators, pumps, motors |
| Sensor Construction | Probe and extension cable assembly |
| Dimensions | Approx. 8 mm diameter × 68 mm probe length × 3500 mm cable length |
| Weight | Approx. 0.28 kg |
6. Product Application
6.1 Steam Turbine Monitoring
The 86691-00680-0350-90 is suitable for steam turbine monitoring applications where precise rotor movement measurement is required.
Steam turbines operate continuously at high rotational speeds. Small changes in shaft displacement may indicate mechanical problems.
The sensor helps monitor:
- Shaft vibration
- Rotor displacement
- Bearing condition
- Rotor stability
- Mechanical alignment
Continuous monitoring improves equipment reliability and allows maintenance teams to identify problems before serious failures occur.
6.2 Gas Turbine Monitoring
Gas turbines operate under extreme conditions and require reliable monitoring components.
The sensor provides accurate shaft position information for turbine protection systems.
Typical applications include:
- Rotor position measurement
- Vibration monitoring
- Mechanical condition analysis
- Fault detection
The product supports safer operation and improves maintenance efficiency.
6.3 Compressor Monitoring
Compressors require accurate monitoring because rotor instability can affect production efficiency and equipment safety.
The 86691-00680-0350-90 provides continuous shaft movement measurement.
It helps detect:
- Rotor imbalance
- Shaft misalignment
- Bearing degradation
- Excessive vibration
Applications include:
- Centrifugal compressors
- Process compressors
- High-speed industrial compressors
6.4 Generator Monitoring
Generators require long-term stable operation.
The sensor provides rotor displacement information that helps evaluate mechanical performance.
Applications include:
- Industrial generators
- Power generation equipment
- Rotating electrical machines
6.5 Pump and Motor Monitoring
Large pumps and motors often operate continuously under heavy loads.
The sensor helps identify abnormal shaft movement caused by:
- Bearing wear
- Coupling problems
- Mechanical looseness
- Shaft deformation
This improves maintenance efficiency and reduces unexpected production interruptions.
7. Product Advantages
7.1 High Precision Shaft Displacement Measurement
The 86691-00680-0350-90 provides accurate measurement of shaft movement.
It can detect small displacement changes, making it suitable for critical machinery monitoring applications.
7.2 Non-contact Measurement Technology
The sensor operates without direct contact with rotating components.
Advantages include:
- No mechanical wear
- Longer service life
- Stable measurement performance
- Reduced maintenance requirements
7.3 Reliable Operation Under Industrial Conditions
The product is designed for harsh industrial environments.
It maintains stable operation under:
- Continuous vibration
- Temperature variation
- Long operating periods
- Industrial contamination conditions
7.4 Flexible Installation Configuration
The configured cable length and probe design provide installation flexibility.
The sensor can be installed in equipment where the monitoring system is located at a distance from the measurement point.
7.5 Supports Predictive Maintenance
The sensor provides continuous machine condition information.
It helps users:
- Detect faults earlier
- Improve maintenance planning
- Reduce unexpected downtime
- Increase equipment availability
8. Recommended Same Series or Related Models
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 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 | Rotating machinery monitoring |
| 86691-00680-0500-90 | Proximity Sensor Assembly | 8 mm probe, extended cable configuration | Approx. 8 mm diameter × 68 mm probe × 5000 mm cable | 0.32 kg | Turbine monitoring |
| 86691-00680-0200-90 | Proximity Sensor Assembly | 8 mm probe, shorter cable configuration | Approx. 8 mm diameter × 68 mm probe × 2000 mm cable | 0.22 kg | Compressor applications |
| 84661-70 | Proximity Sensor | 8 mm probe, 5 m cable, displacement monitoring | Approx. 8 mm diameter × 85 mm probe × 5000 mm cable | 0.25 kg | Machinery protection |
| 3300 XL 8mm Probe | Eddy Current Probe | High precision shaft displacement measurement | Approx. 8 mm diameter × 85 mm length | 0.23 kg | Critical rotating equipment |
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, high accuracy shaft monitoring | Approx. 8 mm diameter × 85 mm length | 0.23 kg | Turbine and compressor monitoring |
| 3300 XL Proximitor Sensor | Signal Conditioning Module | Converts probe signal into monitoring output | Approx. 25 mm × 80 mm × 100 mm | 0.30 kg | Monitoring systems |
| 3500/22M | Data Interface Module | Machinery data acquisition and communication | Approx. 120 mm × 50 mm × 120 mm | 0.40 kg | Industrial monitoring networks |
| 3500/25 | Keyphasor Module | Rotor speed and phase reference measurement | Approx. 120 mm × 50 mm × 120 mm | 0.42 kg | Rotating machinery synchronization |
10. Product Selection Summary
The 86691-00680-0350-90 is a reliable and flexible proximity sensor assembly designed for advanced rotating machinery monitoring.
Its eddy current sensing technology provides accurate shaft displacement measurement without physical contact, ensuring stable performance during long-term industrial operation.
The product is especially suitable for:
- Turbine rotor monitoring
- Compressor protection
- Generator condition monitoring
- Pump and motor vibration analysis
- Predictive maintenance systems
Main advantages include:
- Accurate shaft movement detection
- Non-contact operation
- High industrial reliability
- Flexible installation configuration
- Stable signal performance
- Long operational life
The 86691-00680-0350-90 provides an effective solution for protecting critical rotating equipment and helps improve machine reliability, reduce maintenance costs, and increase operational safety.