200150-04-05 | Bently Nevada 100 mV/g General Purpose Accelerometer

Introduction to the 200150-04-05 Bently Nevada Accelerometer

When reliable vibration data is essential for predictive maintenance, the 200150-04-05 from Bently Nevada provides accurate measurements. This General Purpose Trendmaster 2000 or Trendmaster Pro accelerometer is designed for general application use with ProTIM option Standard Acceleration-to-Velocity channel type (-01). With a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, it captures critical machine health information.

Key Features and Technical Specifications

• Sensitivity: 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, ±12%
• Measurement range: ±245 m/s² (±25 g)
• Frequency range: 10 to 1000 Hz (600 to 60,000 cpm), referenced to 80 Hz
• Mounted resonant frequency: >20 kHz (>1200 kcpm)
• Amplitude linearity: ±2% (1 to 10 g pk)
• 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)
• Hermetic sealing: 5×10⁻⁸ atm·cc/s maximum
• 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

The 100 mV/g sensitivity offers a balance of resolution and range for most rotating machinery. Its ceramic shear design ensures stable performance over temperature and time.

Applications and Use Cases

In general industrial environments, the 200150-04-05 monitors fans, pumps, motors, and compressors. It operates reliably from -40 °C to +105 °C, making it suitable for both indoor and outdoor installations. The 100% condensing humidity rating allows use in washdown areas without submersion. With multiple approvals (CSA, ATEX, and IECEx), it meets global safety standards for hazardous locations.

Installation and Setup

Mount the accelerometer using the 3/8-24 female thread. Apply a mounting torque between 2.7 and 6.8 N·m (2 to 5 ft·lbf). The mounting stud option 04 provides a 3/8-24 to 1/4 NPT adapter with a 1-3/8 inch hex plate stud. Ensure the excitation voltage is between 4.7 and 5.5 Vdc. After installation, allow a cure time of 24 hours before taking critical measurements. The settling time of ≤300 ms ensures quick stabilization after power-up.

Maintenance and Reliability

Regularly inspect the cable and connector for damage. The hermetically sealed 316L stainless steel housing protects against moisture and corrosive atmospheres. Because the accelerometer has no moving parts, it requires minimal maintenance. Periodic verification of output bias voltage (should be +2.5 ± 0.23 Vdc) confirms proper operation. Following the manufacturer's guidelines extends service life and reduces unplanned downtime.

Compatibility and Integration

The 200150-04-05 works with Bently Nevada ProTIM systems using the Standard Acceleration-to-Velocity channel type (-01). It is part of the Trendmaster 2000 and Trendmaster Pro families. The accelerometer outputs a signal referenced to 80 Hz, compatible with most vibration monitoring equipment accepting IEPE-type sensors with 4.7 to 5.5 Vdc excitation.

Comparison with Similar Accelerometers

Compared to lower-sensitivity models (e.g., 10 mV/g), the 100 mV/g sensitivity of the 200150-04-05 provides better resolution for low-level vibrations. It offers a wider frequency range (10 to 1000 Hz) than many industrial accelerometers. The ceramic shear element and 316L stainless steel construction provide superior durability over polymer-based sensors. Its multiple hazardous location approvals (CSA, ATEX, IECEx) make it a versatile choice for global installations.

Troubleshooting and Common Issues

If the output bias voltage drifts outside +2.5 ± 0.23 Vdc, check the excitation voltage and cable integrity. A quiescent current above 800 µA may indicate internal damage. For noisy signals, verify the mounting torque and that the mounting surface is clean and flat. If the accelerometer fails to settle within 300 ms, allow the full 24-hour cure time after installation. Always consult the official Bently Nevada documentation for detailed diagnostics.

FAQ about the 200150-04-05

What is the sensitivity of the 200150-04-05?

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

What is the measurement range of this accelerometer?

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

What temperature range can the 200150-04-05 withstand?

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

What approvals does the 200150-04-05 have?

It carries multiple approvals: CSA, ATEX, and IECEx (option 05).

What is the mounting thread size?

The mounting thread is 3/8-24 female.

Product Support and Availability

The 200150-04-05 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead time. We specialize in industrial automation parts and can assist with compatibility questions.