Bently Nevada 200155-23-05 Low Frequency Trendmaster Pro Accelerometer

Product Introduction

When monitoring slow rotating shafts and fin-fan applications, the Bently Nevada 200155-23-05 Low Frequency Trendmaster Pro Accelerometer delivers reliable vibration data. This accelerometer uses a ceramic shear sensing element and a 316L stainless steel housing for durability in harsh environments. With multiple approvals including CSA, ATEX, and IECEx, it fits into global industrial safety frameworks. By choosing this sensor, you reduce the risk of unplanned downtime and avoid costly repairs from undetected bearing or structural issues.

Technical Specifications Breakdown

The 200155-23-05 offers a mounted resonant frequency greater than 20 kHz (>1200 kcpm), ensuring accurate high-frequency response. Its quiescent current is less than 800 µA, which minimizes power consumption in long-term monitoring setups. The sensitivity at 80 Hz is 10.2 mV/(m/s²) (100 mV/g) with a ±12% tolerance, providing consistent output for trend analysis. These specs directly impact your maintenance budget: lower current draw reduces energy costs, while high resonant frequency prevents false readings that could trigger unnecessary inspections.

Industry Applications

This accelerometer excels in fin-fan cooling systems and slow rotating machinery (e.g., agitators, kilns, and large fans). In a fin-fan application, the 200155-23-05 detects early bearing wear or imbalance, allowing you to schedule repairs during planned outages rather than emergency shutdowns. The cost benefit is clear: one avoided production stoppage can save tens of thousands of dollars. For slow rotating shafts (below 600 RPM), its low-frequency capability ensures you capture vibration data that standard accelerometers miss.

Installation & Setup Guidance

Mount the 200155-23-05 using the 3/8-24 female thread with a mounting torque of 2.7 to 6.8 N·m (2 to 5 ft·lbf). The stud option 23 provides a 3/8-24 to M16x2.0 1-3/8 inch hex plate stud for versatile attachment. Ensure the mounting surface is clean and flat to achieve the specified resonant frequency. Proper installation reduces signal noise and extends sensor life, lowering replacement costs over time.

Maintenance & Reliability

The hermetic sealing (5X10⁻⁸ atm·cc/s maximum leak rate) protects the internal electronics from moisture and contaminants, even in 100% condensing humidity. The temperature range of -40 °C to +105 °C (-40 °F to +221 °F) allows deployment in extreme environments without failure. Periodic calibration checks verify sensitivity remains within ±12% at 80 Hz. By following a simple annual inspection schedule, you maximize sensor lifespan and avoid the cost of premature replacements.

Selection Guide & Purchasing Advice

Before ordering the 200155-23-05, verify your ProTIM option supports the Low Frequency Acceleration-to-Velocity channel type (-05). Confirm the mounting thread matches your installation (3/8-24 female). For complete technical specifications and current lifecycle status, contact BluePLC Industrial. We stock this Bently Nevada accelerometer and can advise on replacement options if needed. Choosing a genuine Bently Nevada sensor ensures measurement accuracy and long-term reliability, protecting your vibration monitoring investment.