Bently Nevada 200155-11-05 Low Frequency Trendmaster Pro Accelerometer

Product Overview

The Bently Nevada 200155-11-05 is a Low Frequency Trendmaster Pro accelerometer designed for monitoring slow rotating shafts and fin-fan applications. This sensor provides reliable vibration data to help prevent costly downtime in critical industrial machinery. By detecting early signs of bearing wear or imbalance, it enables proactive maintenance that reduces repair expenses and extends equipment life.

Technical Specifications

Key parameters of the 200155-11-05 include a mounting stud option of 3/8-24 to 1-1/4 NPT with a 1-3/4 inch hex stud. It carries multiple approvals: CSA, ATEX, and IECEx. The mounted resonant frequency exceeds 20 kHz (>1200 kcpm), and the quiescent current is less than 800 µA. These specifications ensure accurate low-frequency measurement while minimizing power consumption, directly lowering operational costs over the sensor's lifetime.

Industry Applications

This accelerometer excels in fin-fan cooling towers and slow-speed rotating equipment such as large fans, centrifuges, and conveyors. In a fin-fan application, for instance, early detection of vibration anomalies can prevent catastrophic fan failure, avoiding production halts that cost thousands per hour. The 200155-11-05's low-frequency response makes it ideal for shafts rotating below 600 RPM, where standard accelerometers lose sensitivity.

Installation Guidance

Mount the 200155-11-05 using the provided 3/8-24 female thread with a mounting torque between 2.7 to 6.8 N·m (2 to 5 ft·lbf). Ensure the mounting surface is clean and flat to achieve optimal coupling. Use the 3/8-24 to 1-1/4 NPT stud adapter for pipe thread installations. Proper installation maximizes signal fidelity, reducing false alarms and unnecessary maintenance visits—both of which add to total cost of ownership.

Maintenance & Reliability

Routine inspection of the sensor cable and connector is recommended to maintain reliable operation. The hermetically sealed 316L stainless steel housing protects against harsh environments, extending service life and reducing replacement frequency. This durability translates directly into lower lifecycle costs, as fewer sensor replacements are needed over the equipment's lifespan.

Selection Guide & Purchasing Advice

When ordering the Bently Nevada 200155-11-05, verify that your system supports the Trendmaster Pro interface and that the mounting stud option matches your installation requirements. For complete technical specifications, please contact BluePLC Industrial. Our team can help you confirm compatibility and provide competitive pricing to maximize your return on investment.