Product Overview
When vibration monitoring demands reliable, accurate data from rotating machinery, the Bently Nevada 200150-18-05 General Purpose Trendmaster 2000 or Trendmaster Pro Accelerometer delivers. This accelerometer provides a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, ensuring precise readings for general application environments. Designed for use with ProTIM Option Standard Acceleration-to-Velocity channel type (-01), the 200150-18-05 supports continuous machine health assessment.
Key Technical Specifications
The 200150-18-05 offers a measurement range of ±245 m/s² (±25 g) and operates within a frequency range of 10 to 1000 Hz (600 to 60,000 cpm). Its mounted resonant frequency exceeds 20 kHz, enabling detection of high-frequency vibrations. Amplitude linearity is within ±2% (1 to 10 g pk), and transverse sensitivity is ≤7%. Settling time is ≤300 ms (within 5% of bias). Excitation voltage ranges from 4.7 to 5.5 Vdc, with quiescent current <800 µA and output bias voltage of +2.5 ± 0.23 Vdc. Polarity is SIG+ positive with respect to SIG- for acceleration from base to connector.
Environmental and Physical Characteristics
This accelerometer withstands axial shock up to 49,050 m/s² pk (5,000 g pk) and operates across a temperature range of -40 ºC to +105 ºC (-40 ºF to +221 ºF). Hermetic sealing ensures a maximum leak rate of 5X10⁻⁸ atm•cc/s, and it handles 100% relative humidity, condensing, non-submerged. The housing and connector are 316L stainless steel, with a ceramic shear sensing element. Physical dimensions are 17.5 mm x 45.7 mm (11/16 in x 1.8 in), weight 58 g (2.0 oz) typical. Mounting thread is 3/8-24 female, with recommended mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). The mounting stud option (18) is 3/8-24 to M8x1 1-3/8 inch hex plate stud.
Industry Applications
In general industrial applications, the 200150-18-05 monitors vibration on pumps, fans, compressors, and motors. Its wide frequency range and high shock tolerance make it suitable for heavy machinery in manufacturing, oil and gas, and power generation. The multiple approvals (CSA, ATEX, and IECEx) allow deployment in hazardous environments.
Installation and Setup Guidance
Mount the accelerometer using the 3/8-24 female thread with a torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). Ensure the mounting surface is clean and flat for optimal coupling. Connect the SIG+ and SIG- leads with correct polarity. Allow 24 hours cure time after installation before taking critical measurements. Verify the excitation voltage supply is between 4.7 and 5.5 Vdc.
Maintenance and Reliability
The hermetically sealed 316L stainless steel construction protects against moisture and contaminants. The ceramic shear sensing element provides long-term stability. Periodic inspection of the cable and connector integrity is recommended. The accelerometer operates reliably in condensing humidity and extreme temperatures.
Compatibility and Integration
The 200150-18-05 is designed for use with the Trendmaster 2000 or Trendmaster Pro systems and the ProTIM Option Standard Acceleration-to-Velocity channel type (-01). It integrates seamlessly into existing Bently Nevada vibration monitoring architectures.
Selection Guide and Purchasing Advice
Before purchasing, verify your system compatibility with the ProTIM option. Confirm the mounting stud option (18) matches your installation requirements. The multiple approvals (05) cover CSA, ATEX, and IECEx. For current availability and lifecycle status, contact SpareTechPLC. We stock genuine Bently Nevada parts and can assist with replacement or upgrade needs.
Comparison with Similar Product Categories
Compared to standard industrial accelerometers, the 200150-18-05 offers higher sensitivity (10.2 mV/(m/s²)) and a wider frequency range (10-1000 Hz). Its hermetic sealing and 316L stainless steel housing provide superior environmental protection versus plastic or aluminum units. The multiple approvals (CSA, ATEX, IECEx) make it suitable for hazardous areas where standard accelerometers cannot be used.
Troubleshooting and Common Issues
If output bias voltage deviates from +2.5 ± 0.23 Vdc, check the excitation supply and cable connections. High settling time (>300 ms) may indicate improper mounting torque or surface contamination. Transverse sensitivity >7% can occur if the sensor is not aligned correctly with the measurement axis. Always verify polarity (SIG+ positive) during installation.
Frequently Asked Questions
What is the sensitivity of the 200150-18-05?
The sensitivity is 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with a tolerance of ±12%.
What is the measurement range?
The measurement range is ±245 m/s² (±25 g).
What approvals does this model have?
It has multiple approvals: CSA, ATEX, and IECEx (option 05).
What is the operating temperature range?
The operating temperature range is -40 ºC to +105 ºC (-40 ºF to +221 ºF).
What mounting thread and torque are required?
The mounting thread is 3/8-24 female, and the recommended torque is 2.7 to 6.8 N•m (2 to 5 ft•lbf).
