Bently Nevada 200155-01-05 Low Frequency Trendmaster Pro Accelerometer

Product Introduction

As industrial machinery evolves, monitoring slow rotating shafts and fin-fan applications demands specialized vibration sensors. The Bently Nevada 200155-01-05 Low Frequency Trendmaster Pro Accelerometer addresses this need with precision engineering. Designed for low frequency acceleration-to-velocity channel types, this accelerometer excels in challenging environments where traditional sensors fall short. Its ceramic shear sensing element and 316L stainless steel housing ensure durability and accuracy in harsh conditions.

Technical Specifications

The 200155-01-05 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), and amplitude linearity stays within ±2% (1 to 10 g pk). Transverse sensitivity is ≤7%, and settling time is ≤2000 ms. 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. Environmental ratings include axial shock limit of 49,050 m/s² pk (5,000 g pk), temperature range of -40 °C to +105 °C (-40 °F to +221 °F), hermetic sealing at 5x10⁻⁸ atm•cc/s, and 100% relative humidity tolerance. Physical dimensions are 17.5 mm x 45.7 mm (11/16 in x 1.8 in), weight 58 g (2.0 oz), with 3/8-24 female mounting thread and mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf).

Industry Applications

This accelerometer is ideal for fin-fan cooling systems and slow rotating shafts, where low frequency vibration monitoring is critical. In petrochemical plants, it detects early bearing wear in large fans, preventing unplanned downtime. For power generation, it monitors turbine auxiliaries operating below 300 RPM, ensuring reliable performance. The multiple approvals (CSA, ATEX, and IECEx) make it suitable for hazardous environments.

Installation & Setup Guidance

Mount the 200155-01-05 using the 3/8-24 thread stud option (01) or adhesive mount frames included. Apply mounting torque between 2.7 to 6.8 N•m (2 to 5 ft•lbf) for secure attachment. Ensure the sensor is aligned with the measurement axis for accurate data. Use the ProTIM option for low frequency acceleration-to-velocity channel configuration. Allow 24 hours cure time for adhesive mounts.

Maintenance & Reliability

Regularly inspect the sensor for physical damage and verify cable integrity. The hermetic sealing protects against moisture ingress, but periodic checks in condensing environments are recommended. Replace adhesive mounts if degradation occurs. The ceramic shear element offers long-term stability, reducing calibration frequency.

Selection Guide & Purchasing Advice

Before ordering, verify the mounting stud option (01 = 3/8-24 thread with adhesive frames) and approvals (05 = multiple). Confirm compatibility with your monitoring system, especially the ProTIM channel type. For complete technical specifications, please contact BluePLC Industrial. We stock genuine Bently Nevada parts and can advise on replacement options.