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- Bently Nevada
- 200157-22-05
- Trendmaster Pro Enveloping Accelerometer
- USA
- 45.7 × 17.5 mm
- 0.058 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Bently Nevada 200157-22-05 Trendmaster Pro Enveloping Accelerometer is a vibration sensing device used in machinery condition monitoring applications. It is associated with the Trendmaster Pro monitoring platform and is intended for collecting vibration information from rotating equipment where early identification of mechanical deterioration is important.
Unlike a general-purpose vibration sensor used only for overall vibration measurement, an enveloping accelerometer is particularly useful for detecting repetitive high-frequency impact patterns associated with rolling-element bearing and other mechanical faults. The sensor captures the vibration response from the machine and supplies the measurement to the associated Trendmaster monitoring system for further analysis.
The 200157-22-05 can be applied to rotating machinery such as motors, pumps, fans, compressors, gearboxes, and other equipment containing bearings or rotating mechanical assemblies. Continuous condition data allows maintenance personnel to follow changes in machine behavior instead of relying only on periodic manual inspection.
Within a Trendmaster Pro installation, the accelerometer serves as a field-level sensing component. Its output becomes part of a broader condition monitoring channel that can be used for trending, fault detection, and maintenance planning.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 200157-22-05 |
| Product Series | Trendmaster Pro |
| Product Type | Enveloping Accelerometer |
| Measurement Type | Vibration / acceleration |
| Typical Application | Machinery condition monitoring and bearing fault detection |
| Dimensions | 45.7 × 17.5 mm |
| Weight | 0.058 kg |
Product Features
- Trendmaster Pro vibration sensing configuration.
- Intended for enveloping-based vibration monitoring.
- Suitable for detecting repetitive impact characteristics associated with mechanical faults.
- Compact sensing element for installation on rotating machinery.
- Suitable for continuous condition monitoring applications.
- Can support bearing and rotating-component condition assessment.
- Applicable to motors, pumps, fans, compressors, gearboxes, and similar equipment.
Working Principle
The 200157-22-05 detects mechanical vibration generated by operating machinery and converts the vibration into an electrical measurement signal.
When a bearing or rotating component develops a defect, the resulting mechanical interaction can produce short-duration impacts. These impacts may generate higher-frequency vibration components that are difficult to identify from overall vibration values alone.
An enveloping measurement approach focuses on this type of repetitive high-frequency vibration activity. The accelerometer captures the mechanical response from the machine housing, while the associated monitoring electronics process the sensor signal and extract condition-related information.
A typical measurement path is:
Machine Housing → Trendmaster Pro Enveloping Accelerometer → Signal Conditioning / Monitoring Network → Trendmaster Pro System → Condition Monitoring Interface
As the machine operates, the monitoring system can compare vibration behavior over time. A gradual increase in the enveloped vibration response may indicate developing bearing or mechanical problems and can prompt further inspection.
Role in a Trendmaster Pro Condition Monitoring Architecture
The 200157-22-05 operates at the field sensing level of the Trendmaster Pro architecture. It captures vibration directly from the monitored machine and supplies the measurement to the associated monitoring infrastructure.
Rotating Equipment → Accelerometer → Trendmaster Pro Monitoring Network → Monitoring System → Maintenance / Operations Interface
| System Element | Function |
|---|---|
| Rotating Equipment | Generates mechanical vibration during normal and abnormal operation |
| 200157-22-05 | Detects vibration associated with machine operating condition |
| Signal Conditioning / Interface | Processes and transfers the sensor measurement |
| Trendmaster Pro Network | Collects condition data from connected field sensors |
| Monitoring Software / System | Trends measurements and supports condition assessment |
| Maintenance Interface | Provides data for inspection, diagnosis, and maintenance planning |
The sensor is particularly useful when a plant monitors a large number of machines. Distributed vibration sensors can provide regular condition information without requiring technicians to manually measure every machine during each inspection round.
Industrial Applications
| Application | Use of the 200157-22-05 |
|---|---|
| Electric Motors | Monitoring bearing and mechanical vibration condition |
| Pumps | Detecting changes in bearing-related vibration behavior |
| Fans and Blowers | Tracking developing mechanical or bearing faults |
| Compressors | Supporting condition monitoring of rotating components |
| Gearboxes | Monitoring vibration patterns associated with gears and bearings |
| Process Machinery | Collecting distributed vibration data for maintenance programs |
| Plant-Wide Monitoring | Supporting centralized condition monitoring across multiple machines |
Installation and Maintenance
- Select the correct measurement point
Install the accelerometer at a location that provides a clear vibration path from the monitored bearing or rotating component to the sensor. - Prepare the mounting surface
The mounting surface should be clean, mechanically sound, and free from loose material that could reduce vibration transmission. - Maintain firm mechanical coupling
The sensor should be securely mounted so that its own movement does not introduce false vibration signals. - Check sensor orientation
Follow the intended measurement direction and installation arrangement for the monitored machine. - Avoid mounting near unnecessary vibration sources
Locations exposed to unrelated structural vibration can make the condition signal more difficult to interpret. - Protect the connection
Route associated wiring away from moving parts, high-temperature surfaces, and areas exposed to repeated mechanical stress. - Inspect the mounting periodically
Check for looseness, corrosion, mechanical damage, or other conditions that could affect vibration transmission. - Establish a baseline after installation
Record the initial vibration response when the machine is operating under a known normal condition. This baseline can be used for future trend comparisons. - Monitor changes rather than isolated values
A developing mechanical problem is often easier to identify from a sustained change in vibration behavior than from one isolated measurement. - Compare vibration with operating conditions
Review sensor trends together with machine speed, load, temperature, and process conditions when investigating abnormal measurements. - Inspect after machine maintenance
Bearing replacement, housing work, or other mechanical service can change the sensor mounting condition. Verify the accelerometer installation after such work. - Verify the complete monitoring channel
After replacing the sensor or associated monitoring equipment, confirm that the measurement is correctly received by the Trendmaster Pro system before returning the machine to normal monitoring.
Compatible System Components
| Component Type | Typical Role |
|---|---|
| Trendmaster Pro Monitoring System | Collects and manages vibration condition data |
| Trendmaster Pro Network Components | Transfers measurements from distributed sensors |
| Condition Monitoring Software | Trends vibration data and supports machine assessment |
| Signal Interface Components | Provides the required connection between field sensing and monitoring equipment |
| Machine Condition Monitoring Database | Stores historical vibration measurements for trend analysis |
| Maintenance Workstation | Provides access to condition data for inspection and maintenance planning |
Recommended Related Models
| Model | Product Type | Typical Application |
|---|---|---|
| Bently Nevada 200157 Series | Trendmaster Pro Accelerometer | Distributed machinery vibration monitoring |
| Bently Nevada Trendmaster Pro Sensors | Condition Monitoring Sensors | Plant-wide machine condition data collection |
| Bently Nevada 3300 XL 8 mm Proximity Probe | Proximity Probe | Shaft vibration and position measurement |
| Bently Nevada 3300 XL 11 mm Proximity Probe | Proximity Probe | Shaft displacement and vibration monitoring |
| Bently Nevada 3500 Series | Machinery Monitoring System | Continuous machinery monitoring and protection |
Key Advantages
- Enveloping vibration measurement for condition monitoring applications.
- Suitable for detecting vibration patterns associated with developing bearing faults.
- Compact sensor format for distributed machine monitoring.
- Supports Trendmaster Pro condition monitoring architectures.
- Useful for long-term vibration trending and maintenance planning.
- Applicable to a wide range of rotating industrial equipment.
Technical FAQs
What type of vibration information does the 200157-22-05 provide?
The 200157-22-05 is an enveloping accelerometer intended to capture vibration information that can help identify repetitive high-frequency impact characteristics from bearings and other rotating mechanical components.
Why is vibration enveloping useful for bearing monitoring?
Bearing defects can generate short-duration repetitive impacts that may be less obvious in an overall vibration measurement. Enveloping techniques emphasize these impact-related vibration components, making them useful for condition monitoring.
Where should the 200157-22-05 be mounted on a machine?
It should normally be installed on a structurally suitable location close to the bearing or rotating component being monitored. The mounting point should provide good mechanical transmission of the relevant vibration.
What should be done if the sensor trend increases unexpectedly?
First compare the trend with machine speed, load, temperature, and recent maintenance activity. Then inspect the sensor mounting, mechanical coupling, wiring, and monitoring channel. If the increase remains consistent with changing machine behavior, the associated bearing or rotating component should be investigated.