The Bently Nevada 200150-22-CN, also cataloged as the 200150 Accelerometer, operates as a dedicated hardware component for casing vibration acceleration measurement within Bently Nevada Trendmaster monitoring systems.

Model Configuration Overview

The 200150-22-CN is a general purpose case-mounted seismic accelerometer configured for Trendmaster 2000 and Trendmaster Pro systems. The unit uses a 3/8-24 to M8 x 1.25 mounting stud with a 1-3/8 inch hexplate design and supports multiple hazardous area approvals.

Hardware Specifications

Vibration Signal and TSI Characteristics

The 200150 accelerometer generates an electrical output proportional to acceleration along the sensitive axis through a piezoelectric sensing element. The internal electronics convert the generated charge signal into a differential voltage output for connection with compatible monitoring modules.

Within Bently Nevada mechanical monitoring systems, the sensor provides acceleration measurement data used for casing vibration evaluation. Unlike eddy-current proximity probes that measure shaft displacement and require gap voltage validation with -10 VDC targets, this accelerometer measures structural vibration transmitted through the machine casing.

For rotor dynamics analysis, proper mounting directly affects vibration response accuracy. The 316L stainless steel sealed housing provides a mechanical structure suitable for continuous vibration measurement in industrial environments.

Ordering Information

• 1 x Bently Nevada 200150-22-CN Accelerometer
• 1 x 3/8-24 to M8 x 1.25 mounting stud assembly
• Accelerometer housing with 316L stainless steel construction
• Configuration with CSA, ATEX, and IECEx approvals

Field Installation Guidelines

• Install the accelerometer on a clean and properly prepared mounting surface.
• Use the specified mounting stud configuration to maintain mechanical coupling.
• Tighten the sensor according to manufacturer installation requirements.
• Avoid excessive torque that may damage the sensor housing.
• Route signal cables away from high-current electrical conductors.
• Verify grounding and shielding practices before connecting to monitoring modules.
• Confirm compatibility with Trendmaster Pro TIMs, Trendmaster 2000 interfaces, or supported vibration monitors.

Frequently Asked Questions

• What vibration parameter does the 200150-22-CN measure?

The accelerometer measures machine casing vibration acceleration through a piezoelectric sensing element.

• Which monitoring systems support this accelerometer?

The unit is designed for Trendmaster Pro and Trendmaster 2000 monitoring system applications.

• What type of sensing technology is used?

The sensor uses a piezoelectric element that generates charge proportional to applied vibration.

• Does this model measure shaft displacement?

No. It measures casing vibration acceleration and does not operate as an eddy-current displacement probe.

• What mounting connection is provided?

The configuration includes a 3/8-24 to M8 x 1.25 mounting stud with a 1-3/8 inch hexplate design.

• What approvals are included with the CN configuration?

The CN configuration includes multiple approvals including CSA, ATEX, and IECEx.

• What material is used for the sensor housing?

The accelerometer housing is manufactured from 316L stainless steel.

• What affects vibration measurement accuracy during installation?

Mechanical mounting condition, cable routing, grounding, and surface preparation influence measurement performance.