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

Product Introduction

When monitoring slow rotating shafts and fin-fan applications, the Bently Nevada 200155-01-05 Low Frequency Trendmaster Pro Accelerometer delivers reliable vibration data. This sensor is designed for low-frequency acceleration-to-velocity channel types, making it a critical component for predictive maintenance programs in industrial environments.

Technical Specifications Breakdown

The 200155-01-05 features a mounted resonant frequency greater than 20 kHz (>1200 kcpm), ensuring accurate response across its operating range. Its quiescent current is less than 800 µA, indicating low power consumption for continuous monitoring. The accelerometer includes multiple approvals (CSA, ATEX, and IECEx) for use in hazardous locations. The mounting stud option (01) provides a 3/8-24 thread and includes two adhesive mount frames with adhesive for flexible installation.

Industry Applications

This accelerometer excels in fin-fan cooling systems and slow rotating machinery where standard sensors may miss critical low-frequency vibrations. In petrochemical plants, the 200155-01-05 helps detect bearing wear and imbalance in large fans operating below 600 RPM. For paper mills, it monitors dryer rolls and calendar stacks, providing early warning of developing faults. The multiple approvals allow deployment in classified areas without additional certification costs.

Installation & Setup Guidance

Mount the 200155-01-05 using the supplied 3/8-24 threaded stud or adhesive mount frames. Ensure the mounting surface is clean and flat for optimal coupling. Apply the recommended mounting torque of 2.7 to 6.8 N·m (2 to 5 ft·lbf) for threaded installations. Allow adhesive mounts to cure for 24 hours before operation. Connect the sensor to a compatible ProTIM module configured for low-frequency acceleration-to-velocity channel type.

Maintenance & Reliability

Periodically inspect the accelerometer for physical damage, loose connections, or contamination. The hermetically sealed 316L stainless steel housing protects against harsh environments. Verify output bias voltage and sensitivity annually using a calibrated shaker. Replace the sensor if quiescent current exceeds 800 µA or if output deviates from specifications. Store spare units in a clean, dry environment within the temperature range of -55 °C to +121 °C.

Selection Guide & Purchasing Advice

Before ordering the 200155-01-05, confirm your system requires a low-frequency accelerometer with a sensitivity of 10.2 mV/(m/s²) (100 mV/g). Verify the mounting thread compatibility with your installation point. For complete technical specifications, please contact BluePLC Industrial. BluePLC Industrial offers genuine Bently Nevada products with fast shipping and expert support.

Comparison: Low Frequency vs. Standard Accelerometers

Feature

200155-01-05 Low Frequency

Standard Accelerometer

Frequency Range

1.5 to 10,000 Hz

Typically 10 Hz to 15 kHz

Resonant Frequency

>20 kHz

Typically 15-30 kHz

Low Frequency Response

Optimized for 1.5 Hz

Poor below 10 Hz

Applications

Fin-fan, slow shafts

General machinery