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Bently Nevada 3500/25-01-01-00 Half-Height Keyphasor Module – Product Introduction, Technical Specifications, Applications, Advantages, Series Information and Recommended Models
Bently Nevada 3500/25-01-01-00
Product Introduction
The Bently Nevada 3500/25-01-01-00 is a Half-Height Keyphasor Module designed for the 3500 Series Machinery Protection System. It is a precision signal processing module used to provide accurate rotational reference information for critical rotating machinery monitoring applications.
The Keyphasor function is an important part of advanced machinery monitoring because it provides a stable and accurate timing reference from the rotating shaft. This reference signal allows the protection system to determine shaft speed, rotational position, phase angle, and dynamic operating behavior.
The 3500/25-01-01-00 receives signals from Keyphasor probes installed near rotating machine shafts. It processes these signals and provides reliable rotational reference information to other monitoring modules installed in the protection rack.
In rotating machinery applications, vibration amplitude information alone is often not sufficient for complete equipment analysis. Engineers need to understand the relationship between vibration signals and the exact shaft position during rotation.
The Keyphasor module provides this reference point, allowing advanced analysis of:
- Shaft vibration phase
- Rotor movement
- Rotational speed
- Mechanical imbalance
- Shaft alignment condition
- Dynamic machine response
The module is designed for continuous operation in demanding industrial environments where accurate and dependable monitoring is required.
The half-height design provides efficient use of rack space while maintaining the required signal processing capability for machinery protection applications.
The modular plug-in structure allows easy installation, replacement, and maintenance. The module can be quickly integrated into an existing rack configuration without significant system modification.
The 3500/25-01-01-00 is commonly used in applications involving high-value rotating equipment where equipment availability and reliability are critical.
Typical monitored equipment includes:
- Steam turbines
- Gas turbines
- Compressors
- Generators
- Pumps
- Motors
- Rotating process machinery
By providing accurate rotational reference information, the module improves vibration analysis accuracy, supports predictive maintenance activities, and helps reduce unexpected equipment failures.
Brand
Bently Nevada
Bently Nevada is an industrial technology brand specializing in machinery protection, vibration monitoring, condition monitoring, and predictive maintenance solutions.
The products are widely used in industries that depend on reliable operation of rotating machinery.
Typical industries include:
- Power generation
- Oil and gas
- Petrochemical processing
- Marine engineering
- Mining
- Metallurgy
- Heavy manufacturing
- Industrial production
The product portfolio includes:
- Machinery protection systems
- Vibration monitoring modules
- Keyphasor modules
- Transient data interface modules
- Communication modules
- Power supply modules
- Relay modules
- Proximity measurement systems
- Industrial diagnostic equipment
Product Series
3500 Series Machinery Protection System
The 3500 Series is a modular online machinery protection platform designed for continuous monitoring and protection of critical rotating equipment.
The system provides:
- Real-time machinery condition monitoring
- Alarm processing
- Equipment protection
- Vibration analysis
- Speed measurement
- Phase reference measurement
- Diagnostic data collection
- Communication capability
The modular rack structure allows different monitoring modules to be combined according to specific machinery requirements.
Main product categories include:
- Rack Interface Modules
- Power Supply Modules
- Keyphasor Modules
- Vibration Monitoring Modules
- Shaft Position Monitoring Modules
- Transient Data Interface Modules
- Relay Modules
- Overspeed Protection Modules
- Communication Modules
- Data Processing Modules
The 3500 Series provides a flexible and reliable solution for industrial machinery monitoring and protection.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 3500/25-01-01-00 |
| Product Type | Half-Height Keyphasor Module |
| Brand | Bently Nevada |
| Product Series | 3500 Series |
| Main Function | Rotational Reference Signal Processing |
| Application Type | Machinery Protection and Condition Monitoring |
| Module Design | Half-Height Rack Module |
| Installation Method | Rack Mounted |
| Mounting Position | 3500 Rack Slot |
| Input Type | Keyphasor Sensor Signal |
| Speed Measurement | Supported |
| Phase Measurement | Supported |
| Shaft Timing Reference | Supported |
| Rotor Position Reference | Supported |
| Vibration Phase Analysis | Supported |
| Signal Processing | Supported |
| Communication Method | Rack Backplane Communication |
| Power Supply Method | Rack Backplane Powered |
| Operating Mode | Continuous Industrial Operation |
| Cooling Method | Natural Air Cooling |
| Connection Type | Rack Connector |
| Housing Material | Industrial Metal Housing |
| Maintenance Method | Plug-in Replacement |
| System Compatibility | 3500 Series Rack System |
| Environmental Design | Industrial Grade |
| Approximate Dimensions | 241 × 24 × 260 mm |
| Approximate Weight | 0.90 kg (Approx.) |
Product Features
The 3500/25-01-01-00 provides accurate shaft rotational reference information for advanced machinery monitoring applications.
The main purpose of the module is to process Keyphasor signals and provide a precise timing reference for other monitoring functions.
The module supports:
- Rotational speed measurement
- Phase angle measurement
- Shaft position identification
- Vibration phase analysis
- Rotor dynamic evaluation
- Machinery balancing
The Keyphasor reference allows the monitoring system to compare vibration signals with shaft rotation position.
This improves the ability to identify mechanical conditions such as:
- Rotor imbalance
- Misalignment
- Coupling problems
- Mechanical looseness
- Shaft instability
- Abnormal rotating behavior
The half-height module structure provides efficient rack utilization.
The compact design allows multiple monitoring modules to be installed within the same protection rack.
The plug-in construction simplifies maintenance and reduces replacement time.
The module communicates through the rack backplane, providing stable data exchange with other monitoring modules.
The industrial-grade design supports reliable operation in environments with vibration, temperature variation, and continuous service requirements.
Product Advantages
Precise Shaft Reference Measurement
The module provides accurate rotational timing information required for advanced rotating machinery analysis.
This improves the accuracy of vibration phase measurements and diagnostic activities.
Enhanced Machinery Diagnostics
The rotational reference signal helps engineers better understand machine behavior and identify potential mechanical problems.
Supports Predictive Maintenance
The collected shaft reference information improves condition monitoring and maintenance planning.
Reliable Long-Term Operation
The module is designed for continuous industrial service and stable performance.
Efficient Rack Utilization
The half-height structure reduces installation space requirements while maintaining full monitoring capability.
Simple Maintenance Process
The plug-in design allows quick replacement and reduces equipment downtime.
Flexible System Integration
The module can be combined with other 3500 Series monitoring modules to create customized protection systems.
Improved Equipment Reliability
Accurate rotational information helps improve machine protection performance and reduce unexpected failures.
Product Applications
The 3500/25-01-01-00 is widely used in industrial applications requiring accurate rotational reference signals.
Typical applications include:
- Steam Turbine Monitoring
- Gas Turbine Protection
- Generator Condition Monitoring
- Compressor Monitoring Systems
- Centrifugal Compressor Protection
- Industrial Motor Monitoring
- Pump Monitoring Applications
- Rotor Dynamic Analysis
- Machinery Balancing
- Vibration Phase Measurement
- Rotating Equipment Diagnostics
- Power Plant Machinery Protection
- Petrochemical Equipment Monitoring
- Oil Refinery Rotating Machinery
- Offshore Platform Equipment
- Natural Gas Compression Systems
- Marine Propulsion Equipment
- Heavy Industrial Machinery
- Critical Equipment Monitoring
Operating Characteristics
The 3500/25-01-01-00 provides continuous rotational reference information during machinery operation.
The module receives signals from shaft-mounted Keyphasor sensors and processes them into accurate timing signals.
This information allows monitoring systems to:
- Measure shaft rotational speed
- Determine shaft position
- Perform phase analysis
- Evaluate rotor behavior
- Support balancing operations
- Improve fault diagnosis
The module operates continuously inside the protection rack and communicates with other monitoring components through the system backplane.
Its modular structure allows easy installation into existing machinery monitoring systems.
Recommended Models from the Same Series or Related Products
| Model | Product Type | Main Function | Installation | Approximate Dimensions | Approximate Weight |
|---|---|---|---|---|---|
| 3500/25-01-00 | Keyphasor Module | Rotational reference processing | Rack Mounted | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25-01-01-00 | Keyphasor Module | Shaft timing reference | Rack Mounted | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25 125800-02 | Half-Height Keyphasor Module | Speed and phase measurement | Rack Mounted | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25M | Enhanced Keyphasor Module | Advanced rotational monitoring | Rack Mounted | 241 × 24 × 260 mm | 0.90 kg |
| 3500/42M | Vibration Monitoring Module | Shaft vibration monitoring | Rack Mounted | 241 × 24 × 260 mm | 1.00 kg |
Technical Parameters of Recommended 3500 Series Models
| Model | Power Supply | Main Function | Application | Approximate Dimensions | Approximate Weight |
|---|---|---|---|---|---|
| 3500/25-01-00 | Rack Powered | Keyphasor processing | Speed and phase measurement | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25-01-01-00 | Rack Powered | Shaft reference signal processing | Machinery Diagnostics | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25 125800-02 | Rack Powered | Rotational reference | Rotor Analysis | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25M | Rack Powered | Enhanced Keyphasor monitoring | Dynamic Machinery Analysis | 241 × 24 × 260 mm | 0.90 kg |
| 3500/42M | Rack Powered | Vibration monitoring | Shaft Protection | 241 × 24 × 260 mm | 1.00 kg |
Popular Models from the Same Brand
| Model | Product Type | Main Application | Approximate Dimensions | Approximate Weight |
|---|---|---|---|---|
| 3300 XL 8 mm Proximitor Sensor | Proximity Sensor System | Shaft vibration measurement | 120 × 60 × 40 mm | 0.45 kg |
| 330103-00-05-10-02-00 | Proximity Probe | Shaft displacement monitoring | 120 × 25 × 25 mm | 0.30 kg |
| 3500/15-05-05-00 | Power Supply Module | Rack power management | 241 × 24 × 260 mm | 1.10 kg |
| 3500/42M | Vibration Monitoring Module | Vibration and position monitoring | 241 × 24 × 260 mm | 1.00 kg |
| 3500/53 | Overspeed Detection Module | Turbine safety protection | 241 × 24 × 260 mm | 1.00 kg |
Technical Parameters of Popular Brand Models
| Model | Product Function | Installation Method | Application Area | Approximate Dimensions | Approximate Weight |
|---|---|---|---|---|---|
| 3300 XL 8 mm Proximitor Sensor | Shaft Vibration Measurement | Field Mounted | Rotating Machinery Monitoring | 120 × 60 × 40 mm | 0.45 kg |
| 330103-00-05-10-02-00 | Shaft Position Measurement | Field Mounted | Machinery Protection | 120 × 25 × 25 mm | 0.30 kg |
| 3500/15-05-05-00 | Rack Power Supply | Rack Mounted | System Power Management | 241 × 24 × 260 mm | 1.10 kg |
| 3500/42M | Vibration Monitoring Module | Rack Mounted | Shaft Protection | 241 × 24 × 260 mm | 1.00 kg |
| 3500/53 | Overspeed Protection Module | Rack Mounted | Turbine Safety Monitoring | 241 × 24 × 260 mm | 1.00 kg |
Conclusion
The Bently Nevada 3500/25-01-01-00 is a specialized Half-Height Keyphasor Module designed for the 3500 Series Machinery Protection System.
It provides accurate rotational reference signals required for shaft speed measurement, vibration phase analysis, rotor evaluation, and advanced machinery diagnostics.
With reliable signal processing, compact rack design, easy maintenance, and strong compatibility with other monitoring modules, the product provides an important foundation for rotating machinery protection.
The module helps improve diagnostic accuracy, support predictive maintenance programs, reduce equipment risks, and increase the reliability of critical industrial machinery.
The 3500/25-01-01-00 is suitable for applications where precise shaft timing information and continuous machinery monitoring are required.