Bently Nevada 200155-03-05 Low Frequency Trendmaster Pro Accelerometer

Product Overview

When monitoring slow rotating shafts or fin-fan applications, the Bently Nevada 200155-03-05 Low Frequency Trendmaster Pro accelerometer provides reliable vibration data. This sensor is engineered for low-frequency measurements, making it ideal for machinery where standard accelerometers fall short. With a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, it captures subtle vibrations essential for predictive maintenance.

Technical Specifications

The 200155-03-05 offers a measurement range of ±196 m/s² (±20 g) and a frequency range of 1.5 to 10,000 Hz (90 to 600,000 cpm), referenced to 80 Hz. Its mounted resonant frequency exceeds 20 kHz (>1200 kcpm), ensuring accurate readings across the operating band. Amplitude linearity is within ±2% for 1 to 10 g pk, and transverse sensitivity is ≤7%. The accelerometer settles within 5% of bias in ≤2000 ms. Excitation voltage is 4.7 to 5.5 Vdc, with quiescent current <800 µA and output bias voltage of +2.5 ± 0.23 Vdc. The 200155-03-05 also includes a measurement range in mm/s² (mg) of 24.5 (2.5).

Industry Applications

The 200155-03-05 excels in monitoring fin-fan coolers and slow rotating shafts (e.g., large fans, pumps, and compressors) where low-frequency vibration analysis is critical. Its rugged design withstands harsh environments, including 100% condensing humidity and axial shock up to 49,050 m/s² pk (5,000 g pk). The accelerometer operates from -40 °C to +105 °C (-40 °F to +221 °F), making it suitable for outdoor and industrial settings.

Installation & Setup Guidance

Mount the 200155-03-05 using its 3/8-24 female thread. The mounting stud option 03 provides a 3/8-24 to 1/2-20 UNF 1-3/8 inch hex plate stud. Apply a mounting torque of 2.7 to 6.8 N·m (2 to 5 ft·lbf) to ensure proper coupling. Use the accelerometer with a ProTIM option Low Frequency Acceleration-to-Velocity channel type (-05) for optimal performance. Allow 24 hours cure time for adhesive mounting if applicable.

Maintenance & Reliability

The hermetically sealed 316L stainless steel housing protects the ceramic shear sensing element, ensuring long-term reliability. Inspect the mounting and cable connections periodically for signs of wear or corrosion. The accelerometer's robust design minimizes drift, reducing the need for frequent recalibration. For critical machinery, follow the manufacturer's guidelines for periodic verification.

Selection Guide & Purchasing Advice

Before purchasing the Bently Nevada 200155-03-05, verify compatibility with your monitoring system and confirm the mounting thread (3/8-24 female). The multiple approvals (CSA, ATEX, IECEx) make it suitable for hazardous locations. Contact BluePLC Industrial for current lifecycle status and availability. For complete technical specifications, please contact BluePLC Industrial.