200150-18-05 | Bently Nevada 100 mV/g Accelerometer Trendmaster Pro

Introduction to the Bently Nevada 200150-18-05 Accelerometer

When machinery vibration threatens uptime, the 200150-18-05 from Bently Nevada provides precise, reliable data. This general-purpose accelerometer is part of the Trendmaster 2000 and Trendmaster Pro families, engineered for continuous vibration monitoring in industrial environments. With a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, it captures subtle changes in machine health.

The 200150-18-05 is built for harsh conditions. Its 316L stainless steel housing and hermetic sealing (5x10⁻⁸ atm•cc/s max) ensure durability in condensing humidity and temperature extremes from -40 °C to +105 °C. Multiple approvals (CSA, ATEX, and IECEx) make it suitable for hazardous locations.

Key Features and Technical Specifications of the 200150-18-05

• Sensitivity: 10.2 mV/(m/s²) (100 mV/g) ±12% at 80 Hz.
• Measurement Range: ±245 m/s² (±25 g) peak.
• Frequency Range: 10 to 1000 Hz (600 to 60,000 cpm) ±10% referenced to 80 Hz.
• Mounted Resonant Frequency: >20 kHz (>1200 kcpm).
• Amplitude Linearity: ±2% from 1 to 10 g peak.
• Transverse Sensitivity: ≤7%.
• Settling Time: ≤300 ms (within 5% of bias).
• 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).
• Temperature Range: -40 °C to +105 °C (-40 °F to +221 °F).
• Sealing: Hermetic, 5x10⁻⁸ atm•cc/s (3.1x10⁻⁹ atm•in³/s) max.
• Relative Humidity: 100% condensing, non-submerged.
• Size: 17.5 mm x 45.7 mm (11/16 in x 1.8 in).
• 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).
• Sensing Element: Ceramic, shear geometry.
• Housing Material: 316L stainless steel.

A distinctive feature is the 200150-18-05's low quiescent current (<800 µA), which minimizes power draw in loop-powered systems and extends the life of remote monitoring installations.

Applications and Use Cases for the 200150-18-05

Industries rely on the 200150-18-05 for general-purpose vibration monitoring on rotating machinery such as pumps, fans, compressors, and motors. Its wide frequency range (10 to 1000 Hz) covers common fault frequencies for imbalance, misalignment, and bearing wear. The accelerometer's multiple approvals simplify deployment in areas requiring CSA, ATEX, or IECEx certification. For example, in a petrochemical plant, the 200150-18-05 can be mounted on critical pumps to detect early signs of degradation, enabling predictive maintenance that reduces unplanned downtime.

Installation and Setup Guidance

Mount the 200150-18-05 using the 3/8-24 female thread. Apply a mounting torque between 2.7 and 6.8 N•m (2 to 5 ft•lbf) for optimal coupling. The stud option (18) provides a 3/8-24 to M8x1 1-3/8 inch hex plate stud for flexible attachment. Ensure the mounting surface is clean and flat to achieve the specified frequency response. Connect the accelerometer to a compatible Trendmaster Pro or Trendmaster 2000 monitor using the appropriate cable. Allow 24 hours cure time after installation before taking critical measurements.

Maintenance and Reliability Tips

Routine inspection of the 200150-18-05 should include checking cable integrity and connector tightness. The hermetically sealed design protects against moisture and contaminants, but verify the housing for physical damage after severe shock events. Periodically compare baseline vibration readings to detect sensor drift. For safety-rated installations, follow the manufacturer's manual for inspection intervals. The ceramic shear sensing element offers long-term stability, reducing the need for frequent recalibration.

Compatibility and Integration

The 200150-18-05 is designed for use with Bently Nevada Trendmaster 2000 and Trendmaster Pro systems. It interfaces via the standard acceleration-to-velocity channel type (-01). The accelerometer outputs a signal proportional to acceleration, which the monitor can integrate to velocity or displacement. For integration into existing condition monitoring networks, consult the system manual to ensure proper channel configuration and scaling.

Frequently Asked Questions about the 200150-18-05

Q: What is the sensitivity of the 200150-18-05 accelerometer?

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

Q: What is the measurement range of the 200150-18-05?

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

Q: What approvals does the 200150-18-05 carry?

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

Q: What is the operating temperature range for the 200150-18-05?

A: The temperature range is -40 °C to +105 °C (-40 °F to +221 °F).

Q: What is the mounting thread size for the 200150-18-05?

A: The mounting thread is 3/8-24 female.

Product Support and Availability

The 200150-18-05 is available from Petro Auto Tech. Please verify current lifecycle status and availability with Petro Auto Tech before ordering. In-stock units ship promptly to minimize downtime.