Bently Nevada 200155-01-05 Low Frequency Trendmaster Pro Accelerometer

Technical Specifications Breakdown

The 200155-01-05 offers a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with a measurement range of ±196 m/s² (±20 g). The mounted resonant frequency exceeds 20 kHz, and amplitude linearity is within ±2% (1 to 10 g pk). Transverse sensitivity is ≤7%, and settling time is ≤2000 ms. Excitation voltage ranges from 4.7 to 5.5 Vdc, with a quiescent current under 800 µA and an output bias voltage of +2.5 ± 0.23 Vdc. These specs ensure precise, repeatable measurements in demanding environments.

Industry Applications

Fin-Fan Cooling Systems

Fin-fan units often operate at low rotational speeds, making them difficult to monitor with standard sensors. The 200155-01-05 captures low-frequency vibrations accurately, allowing early detection of bearing wear or imbalance. This prevents catastrophic failures and extends equipment life.

Slow Rotating Shafts

In applications like agitators, mixers, and conveyors, slow shaft speeds challenge conventional accelerometers. The Trendmaster Pro’s low-frequency capability ensures reliable data, enabling predictive maintenance strategies that reduce unplanned downtime.

Installation & Setup Guidance

Mount the 200155-01-05 using the provided 3/8-24 thread or adhesive mount frames. Apply a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf) to ensure proper coupling. For adhesive mounting, allow 24 hours cure time. The sensor’s 316L stainless steel housing and hermetic sealing (5x10⁻⁸ atm•cc/s max) protect against harsh environments. Connect to a ProTIM option with Low Frequency Acceleration-to-Velocity channel type (-05) for optimal performance.

Maintenance & Reliability

Routine inspection of the accelerometer’s mounting and cable connections ensures consistent performance. The sensor operates from -40 ºC to +105 ºC (-40 ºF to +221 ºF) and withstands axial shock up to 49,050 m/s² pk (5,000 g pk). Its ceramic shear sensing element and hermetic seal provide long-term reliability. Regular verification of output bias voltage and quiescent current helps detect early degradation.

Solving the Challenge of Low-Speed Vibration Monitoring

When monitoring slow rotating shafts in fin-fan applications, standard accelerometers often fail to capture critical low-frequency vibrations. The Bently Nevada 200155-01-05 Low Frequency Trendmaster Pro accelerometer directly addresses this challenge. Designed for fin-fan and slow rotating shaft applications, this sensor delivers reliable data where others fall short. Its low-frequency acceleration-to-velocity channel type ensures accurate readings even at minimal rotational speeds, preventing unexpected downtime and costly repairs.

Selection Guide & Purchasing Advice

Before purchasing the 200155-01-05, verify the mounting stud option (01 = 3/8-24 thread with adhesive mount frames) and approvals (05 = CSA, ATEX, and IECEx). Ensure compatibility with your ProTIM system. AutoDCSTech offers this accelerometer with fast shipping and expert support. Contact us to confirm availability and lifecycle status before ordering.