200157-13-05 | Bently Nevada 10.2 mV/(m/s²) Enveloping Trendmaster Pro Accelerometer

Introduction to the 200157-13-05 Bently Nevada Accelerometer

When unexpected bearing failures cause unplanned downtime, the 200157-13-05 provides reliable early warning. This Bently Nevada Enveloping Trendmaster Pro Accelerometer is engineered for roller element bearing monitoring and certain cavitation effects. It offers a sensitivity of 10.2 mV/(m/s²) at 80 Hz, ensuring accurate vibration data capture.

Key Features and Technical Specifications

• Sensitivity at 80 Hz: 10.2 mV/(m/s²) ±12% (100 mV/g).
• 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%.
• Excitation voltage: 4.7 to 5.5 Vdc.
• Quiescent current: <800 µA.
• Output bias voltage: +2.5 ± 0.23 Vdc.
• Axial shock limit: 49,050 m/s² pk (5,000 g pk).

One distinctive spec is the enveloping channel type, which extracts acceleration-to-velocity with acceleration enveloping. This feature enhances detection of early-stage bearing defects, reducing false alarms and maintenance costs.

Applications and Use Cases

In industrial settings, the 200157-13-05 excels at monitoring roller element bearings in motors, pumps, and compressors. It also detects cavitation effects in fluid handling equipment. By providing continuous vibration data, it helps maintenance teams schedule repairs before catastrophic failures occur. Consequently, facilities achieve higher uptime and lower repair expenses.

Installation and Setup

Mounting the accelerometer requires a 3/8-24 female thread and a torque of 2.7 to 6.8 N·m (2 to 5 ft·lbf). The mounting stud option is 13 3/8-24 to 5/16-18 UNC with a 3/4 inch hex stud. Ensure the base-to-connector polarity is positive (SIG+ with respect to SIG-). Allow a settling time of ≤300 ms within 5% of bias before taking measurements.

Maintenance and Reliability

Routine inspection of the accelerometer and its cable connections helps maintain signal integrity. The hermetically sealed design (5x10⁻⁸ atm·cc/s maximum leakage) protects against moisture and contaminants. Operating within the temperature range of -40°C to +105°C ensures long-term reliability. Regular verification of output bias voltage (+2.5 ± 0.23 Vdc) confirms proper function.

Compatibility and Integration

The 200157-13-05 is used with the ProTIM option for standard acceleration-to-velocity with acceleration enveloping channel type (-06). It integrates seamlessly with Bently Nevada monitoring systems. For detailed compatibility, consult the official documentation or contact Petro Auto Tech.

Frequently Asked Questions

What is the sensitivity of the 200157-13-05?

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

What is the measurement range of this accelerometer?

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

What is the frequency range for the 200157-13-05?

The frequency range is 10 to 10,000 Hz (600 to 600,000 cpm).

What approvals does the 200157-13-05 have?

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

What is the mounting thread specification?

The mounting thread is 3/8-24 female, with a mounting torque of 2.7 to 6.8 N·m (2 to 5 ft·lbf).

Product Support and Availability

The 200157-13-05 is available from Petro Auto Tech. Please verify current lifecycle status and availability before ordering. In-stock units are ready to ship.