Product Overview

The Bently Nevada 200150-18-CN Trendmaster Pro Accelerometer is a vibration sensor used with the Trendmaster Pro machinery condition monitoring system. It captures mechanical vibration from rotating equipment and feeds that information into the monitoring architecture for machine-condition assessment and trend analysis.

In a plant environment, rotating assets rarely fail without some preceding change in their operating behavior. Vibration can increase or change as bearings wear, rotating components become unbalanced, couplings deteriorate, shafts develop mechanical problems, or other machine conditions change. An accelerometer provides the monitoring system with a direct measurement of this mechanical activity.

The 200150-18-CN can be applied to equipment such as motors, pumps, fans, compressors, gearboxes, and other rotating machinery. Its role is primarily at the sensing layer: it detects vibration at the machine and passes the resulting measurement into the Trendmaster Pro system, where the data can be trended and evaluated alongside operating information.

For predictive maintenance, the value of the sensor comes from repeated measurements. A baseline established under known operating conditions allows maintenance personnel to identify gradual changes rather than relying only on occasional manual vibration checks.

Technical Specifications

Product Features

• Provides vibration sensing for Trendmaster Pro condition monitoring.
• Captures mechanical vibration generated by operating machinery.
• Suitable for monitoring rotating equipment and mechanical assemblies.
• Supports machine-condition trending over extended operating periods.
• Can be used as part of predictive and condition-based maintenance programs.
• Helps maintenance personnel observe changes from an established vibration baseline.
• Integrates into a broader machinery monitoring chain rather than operating as a standalone diagnostic system.

Working Principle

The 200150-18-CN operates at the sensing layer of a vibration monitoring system. Mechanical vibration from the monitored machine is converted into an electrical measurement that can be acquired by the associated Trendmaster Pro monitoring hardware.

1. Machine vibration

Rotating equipment generates mechanical vibration during normal operation. The vibration pattern is influenced by machine speed, load, bearing condition, balance, alignment, and other mechanical factors.

2. Sensor response

The accelerometer responds to the machine’s mechanical acceleration. Changes in vibration behavior can therefore be captured at the selected measurement location.

3. Signal transmission

The sensor measurement is passed through the associated connection and monitoring hardware. Correct sensor installation and signal routing are important because poor mechanical coupling or wiring problems can affect the resulting measurement.

4. Trendmaster Pro acquisition

The Trendmaster Pro architecture collects the sensor information and makes it available for condition monitoring. Repeated measurements can be compared with historical operating behavior.

5. Condition assessment

Maintenance personnel can evaluate changes in vibration together with machine speed, load, temperature, lubrication condition, and other available process or machinery data. The accelerometer supplies measurement information; final fault diagnosis requires interpretation of the complete machine condition.

Role in a Trendmaster Pro Machine Condition Monitoring Architecture

The 200150-18-CN occupies the field sensing layer of the monitoring system. It provides the physical measurement from the machine, while the remaining Trendmaster Pro hardware and software handle acquisition, monitoring, and interpretation.

Industrial Applications

Installation and Maintenance

1. Select the monitoring point — Choose a measurement location that provides a representative mechanical path from the monitored machine to the accelerometer.
2. Prepare the mounting surface — Keep the mounting area clean and free from contamination that could affect mechanical coupling.
3. Secure the sensor correctly — Follow the approved installation method for the specific Trendmaster Pro sensor and machine arrangement.
4. Verify mechanical coupling — A secure connection helps the sensor accurately follow machine vibration.
5. Route the sensor wiring carefully — Protect associated wiring from excessive vibration, abrasion, heat, and accidental mechanical damage.
6. Confirm sensor identification — Match the installed sensor with the correct machine tag and monitoring point in the system documentation.
7. Establish a baseline — Record representative vibration measurements while the machine is operating under known normal conditions.
8. Monitor historical trends — Compare subsequent measurements with established operating behavior rather than relying on a single reading.
9. Record operating conditions — Consider machine speed, load, temperature, and process conditions when evaluating changes in vibration.
10. Inspect mounting if readings change unexpectedly — A loose or improperly coupled sensor can produce abnormal measurements that do not represent an actual machine fault.
11. Check the complete measurement path — Troubleshooting should cover the sensor, wiring, monitoring hardware, and system configuration.
12. Document condition-monitoring results — Maintain records of baseline values, significant trends, inspections, and maintenance actions for future comparison.

Related Components

Recommended Related Models

Key Advantages

• Provides direct vibration sensing for rotating machinery.
• Fits Trendmaster Pro condition-monitoring architectures.
• Supports continuous machine-condition trending.
• Useful for predictive and condition-based maintenance.
• Helps identify changes from an established vibration baseline.
• Can be combined with other machinery and process measurements for condition assessment.

Technical FAQs

What type of measurement does the 200150-18-CN provide?

The 200150-18-CN is an accelerometer used to detect mechanical vibration from rotating equipment. Its measurement can be acquired by the associated Trendmaster Pro monitoring architecture for machine-condition assessment.

Where is an accelerometer normally mounted?

It should be mounted at a mechanically representative location on the equipment being monitored, often near a bearing or other important rotating assembly. The exact measurement point should follow the machine’s condition-monitoring plan.

Why should vibration measurements be compared with a baseline?

Normal vibration varies with factors such as machine speed, load, and operating conditions. A baseline provides a reference for identifying meaningful changes over time and reduces the risk of treating normal operating variation as a developing fault.

What should be checked if the vibration trend suddenly changes?

First verify the machine’s operating conditions and inspect the sensor mounting and associated wiring. If the installation is correct, review the monitoring hardware and configuration, then compare the new measurement with historical data and other available machine-condition indicators.