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- Bently Nevada
- 3500/25-01-04-00
- Enhanced Keyphasor Module
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- 241 × 24 × 260 mm
- 0.9kg
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Bently Nevada 3500/25-01-04-00 Half-Height Keyphasor Module – Product Introduction, Technical Specifications, Applications, Advantages, Series Information and Recommended Models
Product Overview
Model: Bently Nevada 3500/25-01-04-00
The Bently Nevada 3500/25-01-04-00 is a Half-Height Keyphasor Module designed for use in the 3500 Series Machinery Protection System.
This module is a specialized rotational reference monitoring device that provides accurate shaft timing information for rotating machinery protection, vibration analysis, phase measurement, and equipment condition monitoring.
The main purpose of the Keyphasor module is to provide a reliable reference point related to shaft rotation. This reference allows the monitoring system to synchronize vibration signals with the actual rotational position of the shaft, improving the accuracy of machine diagnostics.
The 3500/25-01-04-00 receives signals from Keyphasor sensors installed near rotating machine shafts and processes these signals into stable timing information.
This rotational reference data is used for:
- Shaft speed measurement
- Rotational position monitoring
- Phase angle analysis
- Rotor dynamic evaluation
- Vibration diagnostics
- Machine balancing
- Condition monitoring
For large rotating equipment, vibration level alone cannot always determine the exact cause of mechanical problems. The Keyphasor reference provides additional information by showing how vibration changes according to shaft rotation.
This helps engineers identify problems including:
- Rotor imbalance
- Shaft misalignment
- Coupling wear
- Mechanical looseness
- Rotor instability
- Abnormal rotating behavior
The module adopts a half-height rack design, allowing efficient installation while maintaining reliable signal processing capability.
The modular plug-in structure provides advantages including:
- Easy installation
- Simple replacement
- Reduced maintenance time
- Flexible system configuration
The product is designed for continuous industrial operation and is suitable for applications requiring high reliability and accurate rotating machinery monitoring.
Typical equipment applications include:
- Steam turbines
- Gas turbines
- Compressors
- Generators
- Large industrial motors
- Pumps
- Turbo machinery
- Process rotating equipment
The module improves machinery protection capability by providing stable rotational reference information for advanced monitoring systems.
Brand Information
Brand: Bently Nevada
Bently Nevada is an industrial technology brand focused on machinery protection, vibration monitoring, and rotating equipment condition monitoring solutions.
The products are designed for industries where equipment reliability, operational safety, and continuous monitoring are important.
Main product categories include:
- Machinery protection systems
- Vibration monitoring modules
- Keyphasor modules
- Shaft position monitoring devices
- Proximity measurement systems
- Overspeed protection modules
- Communication modules
- Industrial diagnostic equipment
The products are commonly used in:
- Power generation
- Oil and gas
- Petrochemical processing
- Marine engineering
- Mining
- Heavy manufacturing
- Industrial production
- Energy industries
Product Series
3500 Series Machinery Protection System
The 3500 Series is a modular online machinery protection system designed for monitoring critical rotating equipment.
The system provides continuous measurement and protection functions including:
- Vibration monitoring
- Shaft displacement monitoring
- Speed monitoring
- Phase reference measurement
- Alarm processing
- Equipment protection
- Diagnostic data collection
- Communication functions
The modular rack architecture allows different monitoring modules to be combined according to specific application requirements.
Main module types include:
- Power Supply Modules
- Rack Interface Modules
- Keyphasor Modules
- Vibration Monitoring Modules
- Shaft Position Modules
- Relay Modules
- Overspeed Protection Modules
- Communication Modules
- Data Processing Modules
The 3500 Series provides a flexible and reliable platform for protecting high-value rotating machinery.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 3500/25-01-04-00 |
| 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 |
| Rack Compatibility | 3500 Series Rack System |
| Input Signal Type | Keyphasor Sensor Signal |
| Signal Processing Function | Shaft Timing Reference Processing |
| Speed Measurement | Supported |
| Phase Measurement | Supported |
| Shaft Position Reference | Supported |
| Rotor Synchronization | Supported |
| Vibration Phase Analysis | Supported |
| Communication Interface | Rack Backplane Communication |
| Power Supply Method | Rack Backplane Powered |
| Operating Mode | Continuous Online Monitoring |
| Cooling Method | Natural Air Cooling |
| Connection Type | Rack Plug-In Connector |
| Housing Material | Industrial Metal Housing |
| Maintenance Method | Plug-In Replacement |
| Environmental Design | Industrial Grade |
| Operating Temperature Range | Industrial Operating Environment |
| Approximate Dimensions | 241 × 24 × 260 mm |
| Approximate Weight | 0.90 kg (Approx.) |
Product Function Description
The primary function of the 3500/25-01-04-00 is to provide accurate rotational reference information for machinery monitoring systems.
The module works together with shaft-mounted Keyphasor sensors.
During operation:
- The rotating shaft passes the reference position.
- The Keyphasor sensor produces a reference pulse.
- The module processes the incoming signal.
- The monitoring system uses the timing information for analysis and protection.
The processed reference signal supports:
- Phase measurement
- Vibration correlation
- Rotor analysis
- Shaft position evaluation
- Speed monitoring
- Machinery diagnostic applications
This makes the module an important part of advanced rotating equipment monitoring systems.
Product Features
Accurate Rotational Signal Processing
The module provides stable and accurate shaft timing information for machinery analysis.
Supports Phase-Based Diagnostics
The module allows vibration data to be analyzed according to shaft rotational position.
Improves Machine Fault Analysis
The reference signal improves the ability to identify mechanical issues.
Compact Rack Design
The half-height format reduces rack space requirements.
Modular Plug-In Structure
The design allows convenient installation and replacement.
Continuous Monitoring Capability
The module supports long-term operation in critical machinery applications.
Reliable Industrial Performance
The module is designed for demanding industrial environments.
Flexible Integration
The module can be combined with other 3500 Series monitoring modules.
Product Advantages
High Measurement Accuracy
The module provides precise rotational reference information, improving diagnostic reliability.
Better Fault Detection
The Keyphasor reference helps identify mechanical problems before serious equipment damage occurs.
Improved Machinery Protection
The module enhances protection system performance by providing accurate shaft timing information.
Supports Predictive Maintenance
The collected data helps maintenance teams make better equipment decisions.
Reduced Downtime
Early identification of abnormal conditions helps reduce unexpected shutdowns.
Easy Maintenance
The plug-in module design simplifies replacement and service procedures.
Strong Reliability
The module is suitable for long-term industrial operation.
Product Applications
The 3500/25-01-04-00 is used in applications requiring accurate shaft rotational reference monitoring.
Typical applications include:
- Steam Turbine Monitoring
- Gas Turbine Protection
- Generator Condition Monitoring
- Compressor Monitoring
- Turbo Machinery Diagnostics
- Industrial Motor Monitoring
- Pump Protection Systems
- Rotor Dynamic Testing
- Machinery Balancing
- Vibration Phase Analysis
- Power Plant Equipment Protection
- Petrochemical Equipment Monitoring
- Refinery Rotating Machinery
- Offshore Production Systems
- Natural Gas Compression Equipment
- Marine Propulsion Systems
- Heavy Industrial Machinery
- Critical Equipment Monitoring
Recommended Models from the Same Series or Related Products
| Model | Product Type | Main Function | Application | Approximate Dimensions | Approximate Weight |
|---|---|---|---|---|---|
| 3500/25-01-00 | Keyphasor Module | Rotational reference processing | Shaft timing monitoring | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25-01-01-00 | Keyphasor Module | Shaft reference measurement | Phase analysis | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25-01-02-00 | Keyphasor Module | Timing signal processing | Machinery diagnostics | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25-01-03-00 | Keyphasor Module | Rotational reference monitoring | Rotor analysis | 241 × 24 × 260 mm | 0.90 kg |
| 3500/42M | Vibration Monitoring Module | Shaft vibration monitoring | Machinery protection | 241 × 24 × 260 mm | 1.00 kg |
Technical Parameters of Recommended Models
| Model | Power Supply | Signal Type | Main Function | Approximate Dimensions | Approximate Weight |
|---|---|---|---|---|---|
| 3500/25-01-00 | Rack Powered | Keyphasor Signal | Rotational reference | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25-01-01-00 | Rack Powered | Keyphasor Signal | Phase reference processing | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25-01-02-00 | Rack Powered | Keyphasor Signal | Shaft timing processing | 241 × 24 × 260 mm | 0.90 kg |
| 3500/25-01-04-00 | Rack Powered | Keyphasor Signal | Advanced rotational monitoring | 241 × 24 × 260 mm | 0.90 kg |
| 3500/42M | Rack Powered | Dynamic Signal | Vibration monitoring | 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 Protection Module | Turbine overspeed protection | 241 × 24 × 260 mm | 1.00 kg |
Technical Parameters of Popular 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 displacement measurement | Field Mounted | Machinery protection | 120 × 25 × 25 mm | 0.30 kg |
| 3500/15-05-05-00 | System power supply | Rack Mounted | Protection system power management | 241 × 24 × 260 mm | 1.10 kg |
| 3500/42M | Vibration monitoring | Rack Mounted | Shaft protection | 241 × 24 × 260 mm | 1.00 kg |
| 3500/53 | Overspeed protection | Rack Mounted | Turbine safety monitoring | 241 × 24 × 260 mm | 1.00 kg |
Conclusion
The Bently Nevada 3500/25-01-04-00 is a reliable Half-Height Keyphasor Module designed for the 3500 Series Machinery Protection System.
The module provides accurate rotational reference information required for shaft speed measurement, phase analysis, vibration diagnostics, and rotating machinery protection.
With reliable signal processing capability, compact rack design, simple maintenance, and strong compatibility with the 3500 Series platform, the module is suitable for demanding industrial monitoring applications.
The product improves machinery diagnostic accuracy, supports predictive maintenance strategies, reduces unexpected equipment failures, and enhances the protection of critical rotating machinery.