200157-17-05 | Bently Nevada 10.2 mV/(m/s²) Enveloping Trendmaster Pro Accelerometer

Introduction to the Bently Nevada 200157-17-05

When roller element bearing failures and cavitation effects threaten equipment uptime, the 200157-17-05 provides targeted vibration monitoring. This Enveloping Trendmaster Pro Accelerometer from Bently Nevada offers a sensitivity of 10.2 mV/(m/s²) at 80 Hz, enabling early fault detection. With its multiple approvals (CSA, ATEX, and IECEx), it suits hazardous environments. The cost of unplanned downtime often exceeds preventive monitoring investments, making this sensor a strategic choice for reliability programs.

Key Features and Performance Metrics

• Sensitivity at 80 Hz: 10.2 mV/(m/s²) (±12%) for consistent vibration readings.
• Measurement range: ±245 m/s² (±25 g) covers typical machinery vibration levels.
• Frequency range: 10 to 10,000 Hz (600 to 600,000 cpm) for broad fault detection.
• Mounted resonant frequency above 20 kHz ensures high-frequency response.
• Amplitude linearity within ±2% from 1 to 10 g peak maintains accuracy.
• Transverse sensitivity ≤7% minimizes cross-axis errors.
• Excitation voltage range: 4.7 to 5.5 Vdc, compatible with standard power supplies.
• Quiescent current under 800 µA reduces power consumption.
• Output bias voltage: +2.5 ± 0.23 Vdc for reliable signal baseline.
• Hermetic sealing (5×10⁻⁸ atm•cc/s max) protects against moisture ingress.

One distinctive spec is the settling time of ≤300 ms, which reduces wait time after power-up, directly improving measurement efficiency and lowering labor costs during installation.

Real-World Applications and Use Cases

The 200157-17-05 excels in roller element bearing monitoring and cavitation detection in pumps and compressors. For example, in a petrochemical plant, early bearing fault detection can prevent catastrophic failures and avoid production losses. The accelerometer's enveloping channel type (standard acceleration-to-velocity with acceleration enveloping) enhances its ability to identify incipient faults. Consequently, maintenance teams can schedule repairs during planned outages, reducing emergency repair costs.

Installation and Setup Guidance

Mount the accelerometer using the 3/8-24 female thread and apply a mounting torque between 2.7 and 6.8 N•m (2 to 5 ft•lbf). The mounting stud option (17 3/8-24 to 3/8-16 UNC 1-3/8 inch hex plate stud) provides flexibility for different machine interfaces. Ensure the sensor is securely fastened to avoid signal degradation. The compact size (17.5 mm hex x 45.7 mm height) and weight of 58 g (2.0 oz) simplify installation in tight spaces. After mounting, allow the recommended cure time of 24 hours for adhesive if used, though the sensor typically uses mechanical mounting.

Maintenance and Reliability Insights

Routine inspection of the accelerometer's cable and connector ensures long-term reliability. The 316L stainless steel housing and connector material resist corrosion in harsh environments. With a temperature range of -40 °C to +105 °C (-40 °F to +221 °F), the sensor operates reliably in extreme conditions. Regular verification of output bias voltage and sensitivity helps maintain measurement accuracy. By preventing unexpected failures, the 200157-17-05 reduces overall maintenance costs and extends equipment life.

Compatibility and Integration

The 200157-17-05 is designed for use with Bently Nevada ProTIM options that support standard acceleration-to-velocity with acceleration enveloping channel type (-06). It integrates seamlessly into existing vibration monitoring systems. For system-specific compatibility, consult the official Bently Nevada documentation or contact Petro Auto Tech.

Frequently Asked Questions about the 200157-17-05

Q: What is the sensitivity of the 200157-17-05?

A: The sensitivity at 80 Hz is 10.2 mV/(m/s²) (100 mV/g) with a tolerance of ±12%.

Q: What temperature range can this accelerometer withstand?

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

Q: What approvals does the 200157-17-05 have?

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

Q: What is the measurement range of the accelerometer?

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

Q: How long is the settling time after power-up?

A: The settling time is ≤300 ms.

Product Support and Availability

The Bently Nevada 200157-17-05 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead time. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.