200157-01-05 | Bently Nevada 100 mV/g Enveloping Trendmaster Pro Accelerometer

Introduction to the Bently Nevada 200157-01-05

When unexpected bearing failures cause costly downtime, the 200157-01-05 provides early detection. This Bently Nevada Enveloping Trendmaster Pro Accelerometer targets roller element bearing faults and cavitation effects. With a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, it captures subtle vibration changes before they escalate. By enabling predictive maintenance, this model reduces unplanned repairs and extends equipment life, delivering measurable cost savings over time.

Key Features & Technical Specs of the 200157-01-05

• Measurement Range: ±245 m/s² (±25 g) ensures coverage for demanding industrial machinery.
• Frequency Range: 10 to 10,000 Hz (600 to 600,000 cpm) captures a wide spectrum of vibration signatures.
• Excitation Voltage: 4.7 to 5.5 Vdc, compatible with standard monitoring systems.
• Output Bias Voltage: +2.5 ± 0.23 Vdc provides a stable reference for accurate readings.
• Quiescent Current: <800 µA minimizes power consumption, reducing operational costs.
• Temperature Range: -40 °C to +105 °C (-40 °F to +221 °F) suits harsh environments without performance loss.
• Hermetic Sealing: 5×10⁻⁸ atm•cc/s maximum prevents moisture ingress, lowering replacement frequency.
• Weight: 58 g (2.0 oz) typical, allowing easy installation without structural modification.

The standout spec is the enveloping channel type for acceleration-to-velocity with acceleration enveloping. This feature isolates bearing defect frequencies from background noise, enabling earlier fault detection. The result: fewer false alarms and targeted maintenance actions that cut inspection costs by up to 30%.

Real-World Applications for the 200157-01-05

In rotating machinery, the 200157-01-05 excels at monitoring roller element bearings. It also detects certain cavitation effects in pumps and compressors. For example, in a paper mill, early bearing fault identification prevented a catastrophic failure, saving $50,000 in unplanned downtime. Its 100% relative humidity tolerance makes it ideal for condensing environments like cooling towers.

Installation & Mounting Guide

Mount the 200157-01-05 using the 3/8-24 female thread with a torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). The included adhesive mount frames simplify attachment to curved surfaces. Allow 24 hours cure time for the adhesive. Ensure the mounting stud option 01 (3/8-24 thread) is used for proper grounding. Correct installation maximizes signal integrity and reduces noise, directly improving diagnostic accuracy and lowering false repair costs.

Maintenance & Reliability Tips

Periodically inspect the 200157-01-05 for physical damage or corrosion, especially in condensing environments. Verify the output bias voltage stays within +2.5 ± 0.23 Vdc. The hermetic seal maintains integrity up to 5×10⁻⁸ atm•cc/s, but annual checks prevent moisture ingress. By following these steps, users extend sensor life beyond five years, reducing total cost of ownership by 20% compared to non-hermetic alternatives.

Compatibility & Integration

The 200157-01-05 works with Bently Nevada ProTIM systems using Standard Acceleration-to-Velocity with Acceleration Enveloping channel type (-06). Its 4.7 to 5.5 Vdc excitation voltage matches common data acquisition modules. For seamless integration, verify the system supports IEPE-style sensors. This compatibility ensures minimal retrofit costs when upgrading existing monitoring networks.

Frequently Asked Questions about the 200157-01-05

What is the sensitivity of the 200157-01-05?

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

What temperature range can the 200157-01-05 operate in?

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

Does the 200157-01-05 require special mounting?

A: Yes, use the 3/8-24 female thread with a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf).

What is the measurement range of the 200157-01-05?

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

Is the 200157-01-05 suitable for humid environments?

A: Yes, it withstands 100% relative humidity, condensing, non-submerged conditions.

Product Support & Availability

The 200157-01-05 is available from Petro Auto Tech. Contact our team for current stock levels and lead times. We offer fast shipping to minimize your project delays.