Bently Nevada 200155-11-05 Low Frequency Trendmaster Pro Accelerometer

Product Overview

In the evolution of industrial machinery monitoring, low-frequency vibration analysis has become critical for detecting early faults in slow-rotating equipment. The Bently Nevada 200155-11-05 Low Frequency Trendmaster Pro Accelerometer addresses this need with precision and reliability. Designed for use with the ProTIM option low frequency acceleration-to-velocity channel type (-05), this accelerometer excels in applications such as fin-fan cooling towers and slow rotating shafts where traditional sensors fall short. Manufactured in the U.S.A., the 200155-11-05 combines robust construction with advanced sensing technology to deliver accurate data for predictive maintenance programs.

Technical Specifications

Key parameters of the Bently Nevada 200155-11-05 include a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz (±12%), and a measurement range of ±196 m/s² (±20 g). The frequency range extends from 1.5 to 10,000 Hz (90 to 600,000 cpm), referenced to 80 Hz (±10%). Mounted resonant frequency exceeds 20 kHz (>1200 kcpm), ensuring reliable performance across its operating band. 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 <800 µA and output bias voltage of +2.5 ± 0.23 Vdc. The accelerometer also offers a low-range measurement of 24.5 mm/s² (2.5 mg).

Industry Applications

The 200155-11-05 is specifically engineered for low-frequency vibration monitoring. In fin-fan applications, where air-moving equipment operates at slow speeds, this accelerometer detects bearing wear and imbalance before they lead to unplanned downtime. For slow rotating shafts in pumps, compressors, and mixers, the sensor provides reliable data for condition-based maintenance. Its rugged design and multiple approvals (CSA, ATEX, and IECEx) make it suitable for hazardous environments in oil and gas, petrochemical, and power generation industries.

Installation & Setup Guidance

Proper mounting is essential for accurate readings. The Bently Nevada 200155-11-05 features a 3/8-24 female mounting thread and a mounting stud option of 3/8-24 to 1-1/4 NPT with a 1-3/4 inch hex stud. Apply a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf) to ensure secure attachment. The sensor uses a ceramic shear sensing element and a 316L stainless steel housing and connector. Allow a cure time of 24 hours after installation for optimal performance. Ensure the polarity (SIG+ positive with respect to SIG-) is correctly observed.

Maintenance & Reliability

To maintain long-term reliability, inspect the accelerometer periodically for physical damage or corrosion, especially in harsh environments. The sensor is hermetically sealed to 5x10⁻⁸ atm•cc/s maximum, and operates in 100% relative humidity (condensing, non-submerged). With an axial shock limit of 49,050 m/s² pk (5,000 g pk), the 200155-11-05 withstands industrial shocks. Regular verification of output bias voltage and sensitivity ensures data integrity. For complete technical specifications, please contact BluePLC Industrial.

Selection Guide & Purchasing Advice

When selecting the Bently Nevada 200155-11-05, verify that your monitoring system supports the ProTIM low frequency acceleration-to-velocity channel type (-05). Confirm the mounting thread compatibility with your equipment. BluePLC Industrial offers this accelerometer with full traceability and support. Contact our team to confirm lifecycle status and availability before ordering.