Bently Nevada 200155-18-05 Low Frequency Trendmaster Pro Accelerometer

Product Introduction

When monitoring slow rotating shafts in fin-fan applications, the Bently Nevada 200155-18-05 Low Frequency Trendmaster Pro Accelerometer delivers reliable vibration data. This accelerometer is designed for low frequency measurements, making it ideal for machinery that operates at reduced speeds. Part of the Trendmaster Pro family, the 200155-18-05 is built with a ceramic shear sensing element and a 316L stainless steel housing for durability in harsh environments.

Technical Specifications Breakdown

The 200155-18-05 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), and the mounted resonant frequency exceeds 20 kHz (>1200 kcpm). The accelerometer operates with an excitation voltage of 4.7 to 5.5 Vdc and has a quiescent current of less than 800 µA. Output bias voltage is +2.5 ± 0.23 Vdc. These specifications ensure accurate low frequency vibration monitoring for critical assets.

Industry Applications

This accelerometer is specifically suited for fin-fan coolers and slow rotating shafts in industries such as oil and gas, petrochemical, and power generation. Its low frequency capability (down to 1.5 Hz) allows detection of early bearing wear and imbalance in fans, pumps, and compressors. The multiple approvals (CSA, ATEX, and IECEx) enable use in hazardous locations, providing flexibility for global installations.

Installation & Setup Guidance

The 200155-18-05 features a 3/8-24 female mounting thread and is supplied with a mounting stud option 18 (3/8-24 to M8x1 1-3/8 inch hex plate stud). Recommended mounting torque is 2.7 to 6.8 N•m (2 to 5 ft•lbf). Ensure the mounting surface is clean and flat for optimal coupling. The accelerometer is used with the ProTIM Option Low Frequency Acceleration-to-Velocity channel type (-05). Allow a settling time of up to 2000 ms after power-up for bias stabilization.

Maintenance & Reliability

Routine inspection of the accelerometer and its mounting integrity is recommended. The hermetically sealed design (5x10⁻⁸ atm•cc/s maximum leakage) protects against moisture and contaminants, ensuring long-term reliability. The 316L stainless steel housing resists corrosion in aggressive environments. Verify cable connections periodically to maintain signal integrity.

Selection Guide & Purchasing Advice

When selecting the 200155-18-05, confirm that your application requires low frequency monitoring (down to 1.5 Hz) and that the mounting thread (3/8-24 female) matches your installation. The multiple approvals (CSA, ATEX, IECEx) cover most hazardous area requirements. For complete technical specifications, please contact BluePLC Industrial. BluePLC Industrial is a trusted supplier of Bently Nevada components, ensuring genuine parts and reliable support.