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- Bently Nevada
- 24765-01-01
- Case Expansion Transducer Assembly
- USA
- 88.9 × 117 × 241 mm
- 2.3 kg
- Xiamen, China
- New & In Stock
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- 1 Year
- 1-3 Working Days
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Product Overview
The Bently Nevada 24765-01-01 is a case expansion transducer assembly used in rotating machinery monitoring systems to observe mechanical movement associated with machine casing expansion. It forms part of the measurement chain used to monitor how a machine case moves relative to its reference arrangement as operating and thermal conditions change.
Large turbines, compressors, generators, and other rotating machines can experience measurable structural movement during startup, normal operation, load changes, and shutdown. Monitoring case expansion gives the machinery monitoring system an additional parameter for evaluating machine behavior and identifying conditions that may require further inspection.
The 24765-01-01 is used as part of a complete measurement installation rather than as a standalone protection controller. Its performance depends on the mechanical mounting arrangement, reference point, signal wiring, associated monitoring electronics, and the condition of the monitored machine. Replacement work should therefore verify the complete measurement chain rather than only the transducer itself.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | 24765-01-01 |
| Product Type | Case Expansion Transducer Assembly |
| Product Family | Bently Nevada Machinery Monitoring Hardware |
| Series | 24765 Series |
| Component Category | Case Expansion Measurement Hardware |
| System Role | Machine Case Expansion Monitoring |
| Measurement Function | Case Movement / Expansion Measurement |
| Interface Function | Mechanical Movement Sensing |
| Application | Rotating Machinery Monitoring |
| Sensing Arrangement | Displacement Measurement |
| Component Type | Transducer Assembly |
| System Integration | Bently Nevada Machinery Monitoring System |
| Installation | Rotating Machinery Monitoring Installation |
| Dimensions | 88.9 × 117 × 241 mm |
| Weight | 2.3 kg |
Product Features
- Case expansion transducer assembly for rotating machinery monitoring.
- Used to monitor movement associated with thermal or mechanical changes in machine casing.
- Provides measurement information for startup, operating, and shutdown conditions.
- Forms part of a Bently Nevada machinery monitoring and protection architecture.
- Establishes a defined sensing relationship between the transducer and machine reference.
- Suitable for applications where casing movement is a monitored operating parameter.
- Supports condition-monitoring systems that combine case expansion with other machine measurements.
- Requires correct mechanical positioning for meaningful measurement results.
- Connects with associated signal wiring and monitoring electronics.
- Suitable for maintenance and replacement work on established rotating machinery installations.
Working Principle
The 24765-01-01 functions as the measurement element in a case expansion monitoring arrangement. When the machine casing moves relative to the established reference position, the transducer detects the corresponding mechanical displacement and provides a signal to the connected monitoring system.
Machine Case Movement → 24765-01-01 → Signal Wiring → Monitoring Electronics → Machinery Monitoring / Protection System
During startup, the machine structure can move as temperatures and operating conditions change. The transducer tracks the applicable case movement so that the monitoring system can observe the machine’s response during this transition.
The measurement can also be observed during load changes, steady operation, and shutdown. Changes from the expected movement pattern can provide information for further mechanical inspection when considered together with other machinery measurements.
The transducer itself does not make the final determination of machine condition. The connected monitoring electronics receive the signal and evaluate it as part of the broader machinery monitoring system. Consequently, the mechanical reference, transducer position, cable condition, monitoring input, and machine structure all form part of the measurement chain.
Role in a Bently Nevada Rotating Machinery Monitoring Architecture
The 24765-01-01 occupies the measurement layer of the machinery monitoring system. It converts physical case movement into a signal that can be transferred to the monitoring electronics for observation and applicable machinery protection functions.
| System Layer | Typical Component | Function |
|---|---|---|
| Machinery Protection | Bently Nevada Monitoring System | Evaluates machinery condition and applicable protection information |
| Monitoring Layer | Machinery Monitoring Electronics | Receives and evaluates transducer measurements |
| Signal Transmission | Measurement Cable / Field Wiring | Transfers the transducer signal to monitoring equipment |
| Measurement Layer | 24765-01-01 | Detects case expansion or related mechanical movement |
| Mechanical Reference | Machine Case / Reference Structure | Provides the physical movement being monitored |
| Rotating Equipment | Turbine / Compressor / Generator | Produces the thermal and mechanical conditions being observed |
| Maintenance Layer | Machinery Maintenance System | Uses measurement information for inspection and service decisions |
Industrial Applications
| Application | Transducer Role |
|---|---|
| Steam Turbines | Monitors casing movement associated with thermal expansion |
| Gas Turbines | Supports observation of case movement during changing operating conditions |
| Compressors | Provides case movement information for rotating machinery monitoring |
| Generators | Supports monitoring of structural movement during thermal operating changes |
| Large Rotating Machinery | Measures case expansion within machinery condition-monitoring systems |
| Power Generation | Supports machinery monitoring during startup, operation, and shutdown |
| Industrial Process Equipment | Provides movement information for selected rotating equipment |
| Predictive Maintenance | Supplies case movement data for evaluation with other machine parameters |
Installation and Maintenance
- Confirm the complete 24765-01-01 model designation and verify that it matches the intended case expansion measurement arrangement.
- Review the machinery monitoring drawings, transducer installation documentation, and applicable machine inspection procedures before maintenance.
- Isolate the relevant rotating equipment and follow the approved lockout and maintenance procedures before accessing the transducer installation.
- Identify the transducer location, mechanical reference, signal wiring, and monitored machine surface before disconnecting the existing assembly.
- Inspect the transducer, mounting arrangement, connectors, and accessible surfaces for corrosion, contamination, mechanical damage, or abnormal wear.
- Remove the existing assembly carefully without disturbing the reference structure or damaging associated wiring.
- Inspect the mounting surface and reference arrangement to ensure that the replacement can be installed in the intended measurement position.
- Install the transducer assembly according to the applicable mechanical installation procedure and secure the mounting arrangement correctly.
- Reconnect the associated signal wiring and verify that cable routing does not introduce unnecessary mechanical stress.
- Check the transducer-to-reference relationship and verify that the installation corresponds to the approved machinery monitoring documentation.
- Perform a controlled monitoring check and confirm that the associated system receives an appropriate case expansion measurement signal.
- Record the transducer model, installation position, wiring condition, measurement check, and maintenance observations for future troubleshooting.
Related Components
| Component | Function in the System |
|---|---|
| Bently Nevada Machinery Monitoring System | Receives and evaluates rotating machinery measurement information |
| Case Expansion Transducer Cable | Transfers the transducer signal to monitoring electronics |
| Machinery Monitoring Module | Processes applicable transducer measurements |
| Machine Case / Reference Structure | Provides the mechanical movement being measured |
| Rotating Equipment | Generates the thermal and mechanical conditions being monitored |
| Machinery Protection System | Uses monitoring information for applicable protection functions |
| Monitoring Cabinet | Houses associated signal-processing and monitoring hardware |
| Machinery Condition Monitoring System | Collects and evaluates operating measurements |
Recommended Related Models
| Model | Product Type | Typical Relationship |
|---|---|---|
| Bently Nevada 24765 Series | Case Expansion Transducer Assembly | Same measurement hardware family |
| Bently Nevada Case Expansion Transducers | Case Expansion Measurement Hardware | Related sensing hardware |
| Bently Nevada Proximity Measurement Systems | Machinery Measurement Hardware | Related displacement-monitoring technology |
| Bently Nevada Machinery Monitoring Modules | Monitoring Hardware | Associated signal-processing equipment |
| Bently Nevada Machinery Protection Systems | Machinery Monitoring System | Higher-level monitoring and protection platform |
Key Advantages
- Provides a dedicated measurement arrangement for machine case expansion.
- Supports monitoring of casing movement during thermal and operating changes.
- Integrates with broader Bently Nevada machinery monitoring architectures.
- Provides measurement information for startup, operation, and shutdown analysis.
- Suitable for large rotating equipment condition-monitoring applications.
- Supports maintenance and replacement of established machinery monitoring installations.
Technical FAQs
What does the Bently Nevada 24765-01-01 measure?
The 24765-01-01 is a case expansion transducer assembly used to monitor mechanical movement associated with expansion or displacement of a machine case relative to its reference arrangement.
Why is case expansion important when monitoring rotating machinery?
Large rotating machines can undergo structural movement as temperatures and operating conditions change. Case expansion measurements provide additional information about the machine’s mechanical response during these operating transitions.
Does the 24765-01-01 perform machinery protection by itself?
No. It is a measurement component within a larger monitoring architecture. The connected monitoring electronics receive the transducer signal and evaluate it together with other available machinery measurements.
What should be checked when replacing the 24765-01-01?
The transducer model, mounting location, mechanical reference, signal wiring, monitoring-system input, and installation geometry should be verified. After installation, the measurement signal should be checked under controlled conditions before the equipment returns to normal operation.