Bently Nevada 200155-06-05 Low Frequency Trendmaster Pro Accelerometer

Product Introduction

When monitoring slow rotating shafts in fin-fan applications, engineers often face the challenge of capturing low-frequency vibrations accurately. The Bently Nevada 200155-06-05 Low Frequency Trendmaster Pro Accelerometer directly addresses this need. Designed for use with the ProTIM Option Low Frequency Acceleration-to-Velocity channel type (-05), this accelerometer delivers reliable data for predictive maintenance. Manufactured in the U.S.A., this sensor is part of the trusted Trendmaster Pro series, known for its precision in industrial environments.

Technical Specifications Breakdown

The 200155-06-05 offers a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with a ±12% tolerance. Its measurement range spans ±196 m/s² (±20 g), making it suitable for monitoring moderate vibration levels. The frequency range extends from 1.5 to 10,000 Hz (90 to 600,000 cpm), referenced to 80 Hz with ±10% tolerance. With a mounted resonant frequency exceeding 20 kHz (>1200 kcpm), this sensor avoids resonance interference in typical applications. Amplitude linearity is within ±2% for 1 to 10 g peak, and transverse sensitivity is ≤7%. The accelerometer settles within 2000 ms (within 5% of bias) and requires an excitation voltage of 4.7 to 5.5 Vdc. Quiescent current is below 800 µA, and output bias voltage is +2.5 ± 0.23 Vdc. For low-frequency monitoring, the measurement range in mm/s² is 24.5 (2.5 mg).

Industry Applications

This accelerometer excels in fin-fan and slow rotating shaft applications, where traditional sensors may miss critical low-frequency signals. In petrochemical plants, cooling fans often operate below 600 RPM. The 200155-06-05 captures vibration data from these assets, enabling early detection of bearing wear or imbalance. Similarly, in paper mills, slow dryer rolls benefit from this sensor's ability to measure down to 1.5 Hz. By integrating with the Trendmaster Pro system, operators gain actionable insights to schedule maintenance and avoid unplanned downtime.

Installation & Setup Guidance

Mount the 200155-06-05 using the 3/8-24 female thread. The mounting stud option (06) provides a 3/8-24 to 1/4 NPT adapter with a 3/4 inch hex stud. Apply a mounting torque between 2.7 to 6.8 N·m (2 to 5 ft·lbf) to ensure proper coupling. The sensor housing is made of 316L stainless steel, offering corrosion resistance in harsh environments. Allow a 24-hour cure time for any adhesive used during installation. For best results, mount the accelerometer on a clean, flat surface to maximize frequency response.

Maintenance & Reliability

The 200155-06-05 features hermetic sealing with a maximum leak rate of 5×10⁻⁸ atm·cc/s (3.1×10⁻⁹ atm·in³/s), ensuring protection against moisture and contaminants. It operates reliably in 100% relative humidity (condensing, non-submerged) and withstands axial shock up to 49,050 m/s² pk (5,000 g pk). The temperature range spans -40°C to +105°C (-40°F to +221°F), with storage capability from -55°C to +121°C (-67°F to +250°F). Regular inspection of the mounting integrity and cable connections is recommended to maintain signal quality. The ceramic shear sensing element provides long-term stability, reducing the need for frequent recalibration.

Selection Guide & Purchasing Advice

When ordering the 200155-06-05, verify the mounting stud option (06) and approval code (05) match your requirements. The 05 approval indicates multiple certifications: CSA, ATEX, and IECEx, suitable for hazardous locations. This accelerometer weighs 58 g (2.0 oz) typical and has a hex size of 17.5 mm x 45.7 mm (11/16 in x 1.8 in). For complete technical specifications and current availability, please contact BluePLC Industrial. Our team can confirm lifecycle status and recommend compatible Trendmaster Pro components for your monitoring system.