200157-09-05 | Bently Nevada 10.2 mV/(m/s²) Enveloping Trendmaster Pro Accelerometer

What Is the 200157-09-05 Bently Nevada Accelerometer?

When monitoring vibration in rotating machinery, the 200157-09-05 from Bently Nevada provides reliable data for predictive maintenance. This Enveloping Trendmaster Pro Accelerometer is designed for roller element bearings and certain cavitation effects. It features a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with a measurement range of ±245 m/s² (±25 g). The unit operates from 10 to 10,000 Hz (600 to 600,000 cpm) and includes multiple approvals (CSA, ATEX, and IECEx).

Key Features & Technical Specs

• Sensitivity: 10.2 mV/(m/s²) ±12% at 80 Hz.
• Measurement Range: ±245 m/s² (±25 g).
• 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%.
• Settling Time: ≤300 ms.
• Excitation Voltage: 4.7 to 5.5 Vdc.
• Quiescent Current: <800 µA.
• Output Bias Voltage: +2.5 ± 0.23 Vdc.
• Temperature Range: -40 °C to +105 °C (-40 °F to +221 °F).
• Sealing: Hermetic, 5×10⁻⁸ atm•cc/s max.
• Weight: 58 g (2.0 oz) typical.
• Mounting Thread: 3/8-24 female.
• Mounting Torque: 2.7 to 6.8 N•m (2 to 5 ft•lbf).

Industry Applications

The 200157-09-05 excels in monitoring roller element bearings and cavitation effects in pumps, compressors, and turbines. Its enveloping channel type (-06) provides acceleration-to-velocity conversion with acceleration enveloping, making it ideal for early fault detection. This accelerometer helps reduce unplanned downtime by catching bearing wear and cavitation before they cause failure.

Installation & Setup

Mount the 200157-09-05 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 stud option 09 provides a 3/8-24 to 3/4 NPT adapter with a 1-1/4 inch hex stud. Ensure the mounting surface is clean and flat for optimal coupling. Connect the sensor to a compatible data collector or monitoring system using the proper cable and connector.

Maintenance & Reliability

Periodically inspect the 200157-09-05 for physical damage or corrosion, especially in harsh environments. The hermetic sealing (5×10⁻⁸ atm•cc/s max) protects against moisture and contaminants. Verify the output bias voltage remains within +2.5 ± 0.23 Vdc during operation. Regular calibration checks help maintain measurement accuracy over time.

Compatibility & Integration

The 200157-09-05 works with Bently Nevada ProTIM modules and other compatible vibration monitoring systems. It uses standard acceleration-to-velocity with acceleration enveloping channel type (-06). The sensor outputs a positive signal (SIG+ with respect to SIG-) when acceleration is from base to connector. For best results, pair it with a data acquisition system that supports IEPE-type accelerometers with 4.7 to 5.5 Vdc excitation.

FAQ about 200157-09-05

What is the sensitivity of the 200157-09-05?

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

What temperature range can this accelerometer handle?

It operates from -40 °C to +105 °C (-40 °F to +221 °F).

Does the 200157-09-05 have safety certifications?

Yes, it has multiple approvals including CSA, ATEX, and IECEx.

What is the mounting thread size?

The mounting thread is 3/8-24 female, with a stud option for 3/8-24 to 3/4 NPT.

What is the typical weight of this accelerometer?

The weight is 58 g (2.0 oz), typical.

Product Support & Availability

The 200157-09-05 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead time. We provide fast delivery and expert support for your vibration monitoring needs.