Bently Nevada 200155-19-05 Low Frequency Trendmaster Pro Accelerometer

Product Introduction

When monitoring slow rotating shafts in fin-fan applications, the Bently Nevada 200155-19-05 Low Frequency Trendmaster Pro Accelerometer delivers reliable vibration data. This sensor is designed for low-speed machinery where standard accelerometers fall short. With a sensitivity of 10.2 mV/(m/s²) at 80 Hz, it captures subtle vibrations that indicate bearing wear or imbalance. The 200155-19-05 is part of the Trendmaster Pro family, built for continuous condition monitoring in harsh industrial environments.

Technical Specifications Breakdown

The Bently Nevada 200155-19-05 offers a measurement range of ±196 m/s² (±20 g), suitable for low-amplitude vibration signals. Its frequency range spans 1.5 to 10,000 Hz (90 to 600,000 cpm), referenced to 80 Hz, making it ideal for slow-speed machinery. The mounted resonant frequency exceeds 20 kHz (>1200 kcpm), ensuring accurate readings without structural interference. Amplitude linearity is within ±2% from 1 to 10 g peak, and transverse sensitivity is ≤7%. Settling time is ≤2000 ms, allowing quick stabilization after power-up. Excitation voltage is 4.7 to 5.5 Vdc, with quiescent current under 800 µA and output bias voltage of +2.5 ± 0.23 Vdc. The accelerometer withstands axial shock up to 49,050 m/s² pk (5,000 g pk) and operates from -40 °C to +105 °C (-40 °F to +221 °F). Hermetic sealing ensures reliability in condensing humidity up to 100% relative, non-submerged.

Industry Applications

This accelerometer excels in fin-fan cooling systems and other slow rotating shaft applications. In petrochemical plants, it monitors cooling fan vibration to prevent unplanned downtime. For paper mills, it tracks dryer roll bearings operating below 300 RPM. The low frequency response captures early-stage faults that higher-frequency sensors miss. By integrating the 200155-19-05 into a condition monitoring program, maintenance teams can schedule repairs based on actual machine health rather than fixed intervals, reducing costs and extending equipment life.

Installation & Setup Guidance

Mount the Bently Nevada 200155-19-05 using the 3/8-24 female mounting thread. Apply mounting torque between 2.7 to 6.8 N•m (2 to 5 ft•lbf) for secure attachment. The Quick-Set XDCR adapter (option 19) simplifies installation on 1-inch hex studs. Ensure the sensor base contacts the machine surface directly for accurate vibration transmission. Use the ProTIM option Low Frequency Acceleration-to-Velocity channel type (-05) for optimal signal conditioning. Allow 24 hours cure time after mounting if adhesive is used. Verify output bias voltage after installation to confirm proper operation.

Maintenance & Reliability

The 200155-19-05 features a ceramic shear sensing element and 316L stainless steel housing for long-term durability. Its hermetic seal prevents moisture ingress, making it suitable for outdoor or washdown environments. No routine maintenance is required beyond periodic visual inspection and verification of output bias voltage. The accelerometer's robust design minimizes drift over time, ensuring consistent data for years. For critical machinery, consider annual calibration checks to maintain measurement accuracy.

Selection Guide & Purchasing Advice

Before ordering the 200155-19-05, verify that your application requires low frequency response (1.5 Hz to 10 kHz) and that the mounting stud option (Quick-Set XDCR adapter) matches your installation. This model carries multiple approvals (CSA, ATEX, and IECEx), suitable for hazardous area use. BluePLC Industrial stocks this accelerometer and can advise on compatible ProTIM modules and cabling. Contact our team to confirm lifecycle status and availability before placing your order.