Bently Nevada 200155-12-05 Low Frequency Trendmaster Pro Accelerometer

Product Overview

When monitoring slow rotating shafts in fin-fan applications, the Bently Nevada 200155-12-05 Low Frequency Trendmaster Pro accelerometer delivers reliable vibration data. This sensor is designed for low frequency measurements, making it ideal for assets where traditional accelerometers fall short. Manufactured in the U.S.A., the 200155-12-05 features a ceramic shear sensing element in a 316L stainless steel housing, ensuring durability in harsh environments.

Technical Specifications

The 200155-12-05 offers a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with a measurement range of ±196 m/s² (±20 g). Its frequency range spans 1.5 to 10,000 Hz (90 to 600,000 cpm), referenced to 80 Hz. The mounted resonant frequency exceeds 20 kHz (>1200 kcpm). Amplitude linearity is ±2% (1 to 10 g pk), and transverse sensitivity is ≤7%. Settling time is ≤2000 ms (within 5% of bias). Excitation voltage ranges from 4.7 to 5.5 Vdc, with quiescent current below 800 µA. Output bias voltage is +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 is 5×10⁻⁸ atm•cc/s maximum. Size is 17.5 mm x 45.7 mm (11/16 in x 1.8 in), weight 58 g (2.0 oz). Mounting thread is 3/8-24 female, with mounting torque 2.7 to 6.8 N•m (2 to 5 ft•lbf). The mounting stud option is 3/8-24 to 1/4-20 UNC, 3/4 inch hex stud. Approvals include CSA, ATEX, and IECEx.

Industry Applications

Engineers rely on the 200155-12-05 for fin-fan cooling systems and slow rotating shafts where low frequency vibration monitoring is critical. Its wide frequency range and high sensitivity capture subtle changes in machinery health. The accelerometer integrates with ProTIM option Low Frequency Acceleration-to-Velocity channel type (-05) for seamless data acquisition. In petrochemical plants, this sensor helps detect bearing wear and imbalance before they cause unplanned downtime.

Installation & Setup Guidance

Mount the 200155-12-05 using the provided 3/8-24 female thread and apply mounting torque between 2.7 to 6.8 N•m. Ensure the mounting surface is clean and flat for optimal coupling. The sensor uses a 4.7 to 5.5 Vdc excitation supply. Polarity is SIG+ positive with respect to SIG- for acceleration from base to connector. Allow 24 hours cure time after installation before taking critical measurements. Verify output bias voltage is within +2.5 ± 0.23 Vdc to confirm proper operation.

Maintenance & Reliability

Regularly inspect the 200155-12-05 for physical damage or contamination. The hermetic sealing ensures protection against moisture and corrosive atmospheres. With a temperature range of -40 °C to +105 °C, this accelerometer performs reliably in extreme conditions. Periodic calibration checks against a known reference maintain measurement accuracy. Follow manufacturer guidelines for cleaning; avoid solvents that could damage the ceramic element or housing.

Selection Guide & Purchasing Advice

Before ordering the Bently Nevada 200155-12-05, verify your system's excitation voltage and mounting thread requirements. This model includes multiple approvals (CSA, ATEX, IECEx) for hazardous area installations. BluePLC Industrial stocks the 200155-12-05 and can confirm current lifecycle status and availability. Contact us for competitive pricing and fast delivery on this low frequency accelerometer.