200157-22-05 | Bently Nevada 100 mV/g Enveloping Trendmaster Pro Accelerometer

Introduction to the 200157-22-05 Enveloping Trendmaster Pro Accelerometer

When roller element bearing faults or cavitation effects threaten machinery uptime, the 200157-22-05 from Bently Nevada provides precise vibration data. This Enveloping Trendmaster Pro Accelerometer is engineered for continuous condition monitoring in demanding industrial environments. With a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, it captures early signs of mechanical wear. Its robust design helps reduce unplanned downtime and maintenance costs over the long term.

Key Features & Technical Specs of the 200157-22-05

• Sensitivity: 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, ±12%.
• Measurement Range: ±245 m/s² (±25 g) for acceleration.
• Frequency Range: 10 to 10,000 Hz (600 to 600,000 cpm).
• Mounted Resonant Frequency: >20 kHz (>1200 kcpm).
• Amplitude Linearity: ±2% (1 to 10 g pk).
• Transverse Sensitivity: ≤7%.
• Excitation Voltage: 4.7 to 5.5 Vdc.
• Output Bias Voltage: +2.5 ± 0.23 Vdc.
• Temperature Range: -40 ºC to +105 ºC (-40 ºF to +221 ºF).
• Sealing: Hermetic, 5×10⁻⁸ atm·cc/s max.
• Weight: 58 g (2.0 oz), typical.
• Approvals: Multiple (CSA, ATEX, and IECEx).

The 100 mV/g sensitivity is a standout spec—it provides high-resolution output for early fault detection, directly translating to lower repair costs and extended equipment life.

Applications & Use Cases for the 200157-22-05

This accelerometer is specifically designed for roller element bearing monitoring and certain cavitation effects in rotating machinery. By detecting vibration anomalies early, it helps avoid catastrophic failures in pumps, motors, compressors, and turbines. The cost-benefit is clear: one prevented bearing failure can save thousands in replacement and lost production.

Installation & Setup Guidance

Mount the 200157-22-05 using the 3/8-24 female thread with a mounting torque of 2.7 to 6.8 N·m (2 to 5 ft·lbf). The mounting stud option 22 provides a 3/8-24 to M8x1.25 1-3/8 inch hex plate stud. Ensure the mounting surface is clean and flat for optimal vibration transmission. Allow 24 hours cure time if adhesive is used.

Maintenance & Reliability Tips

Regularly inspect the accelerometer for physical damage or corrosion, especially in condensing humidity environments (100% relative humidity, non-submerged). The hermetically sealed 316L stainless steel housing ensures long-term reliability. Periodic verification of output bias voltage (+2.5 ± 0.23 Vdc) can indicate sensor health. This proactive approach minimizes replacement costs and maximizes uptime.

Compatibility & Integration

The 200157-22-05 is used with the ProTIM option for Standard Acceleration-to-Velocity with Acceleration Enveloping channel type (-06). It integrates seamlessly into Bently Nevada condition monitoring systems. For specific system compatibility, consult the official documentation or contact Petro Auto Tech.

FAQ about the 200157-22-05

What is the sensitivity of the 200157-22-05?

The sensitivity is 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, ±12%.

What is the measurement range of this accelerometer?

The measurement range is ±245 m/s² (±25 g) for acceleration.

What approvals does the 200157-22-05 hold?

It holds multiple approvals: CSA, ATEX, and IECEx.

What is the operating temperature range?

The temperature range is -40 ºC to +105 ºC (-40 ºF to +221 ºF).

What is the mounting thread size?

The mounting thread is 3/8-24 female.

Product Support & Availability

The 200157-22-05 is available from Petro Auto Tech, your trusted source for industrial automation parts. Contact our team for current stock status and lead times. We are ready to help you keep your operations running efficiently.