Bently Nevada 200157-02-05 Enveloping Trendmaster Pro Accelerometer

Product Introduction

When roller element bearings begin to fail or cavitation effects threaten rotating machinery, the Bently Nevada 200157-02-05 provides early detection. This Enveloping Trendmaster Pro accelerometer is designed specifically for condition monitoring in industrial environments. Manufactured in the USA, it works with the ProTIM option for standard acceleration-to-velocity with acceleration enveloping channel type (-06). The 200157-02-05 carries multiple approvals including CSA, ATEX, and IECEx, making it suitable for hazardous area installations.

Technical Specifications Breakdown

The 200157-02-05 delivers a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with a measurement range of ±245 m/s² (±25 g). Its frequency range spans 10 to 10,000 Hz (600 to 600,000 cpm), referenced to 80 Hz. The mounted resonant frequency exceeds 20 kHz (>1200 kcpm), ensuring reliable high-frequency response. Amplitude linearity stays within ±2% from 1 to 10 g peak, and transverse sensitivity is ≤7%. The accelerometer settles within 300 ms (within 5% of bias) and requires an excitation voltage of 4.7 to 5.5 Vdc. Quiescent current is less than 800 µA, and output bias voltage is +2.5 ± 0.23 Vdc. These specs directly impact cost: consistent sensitivity reduces false alarms, saving maintenance labor and unplanned downtime.

Industry Applications

The 200157-02-05 excels in roller element bearing monitoring and detecting certain cavitation effects in pumps and compressors. In a typical paper mill, early bearing fault detection prevents catastrophic failure and extends equipment life. For a petrochemical plant, the accelerometer's ability to capture enveloped acceleration data helps schedule maintenance during planned outages, avoiding emergency shutdowns that cost thousands per hour. The cost-benefit is clear: one avoided bearing failure can pay for dozens of sensors.

Installation & Setup Guidance

Mount the 200157-02-05 using the 3/8-24 female thread. The mounting stud option 02 provides a 3/8-24 to 3/8-24 UNF 1-3/8 inch hex plate stud. Apply mounting torque between 2.7 to 6.8 N·m (2 to 5 ft·lbf) to ensure proper coupling without over-tightening. Use the 200155 316L stainless steel housing and connector material for corrosion resistance. Allow 24 hours cure time for any adhesive used. Proper installation maximizes signal fidelity, reducing costly rework.

Maintenance & Reliability

The hermetically sealed design (5×10⁻⁸ atm·cc/s maximum leakage) protects against moisture and contaminants. With a temperature range of -40 °C to +105 °C (-40 °F to +221 °F) and 100% relative humidity tolerance (condensing, non-submerged), this accelerometer withstands harsh industrial environments. The axial shock limit of 49,050 m/s² pk (5,000 g pk) ensures survival during occasional impacts. Regular inspection of the mounting and cable connections maintains measurement accuracy. The ceramic shear sensing element provides long-term stability, reducing replacement frequency and lifecycle costs.

Selection Guide & Purchasing Advice

Before ordering the 200157-02-05, verify that your monitoring system supports the ProTIM option with acceleration enveloping channel type. Confirm the mounting thread matches your installation (3/8-24 female). For complete technical specifications, please contact BluePLC Industrial. We stock genuine Bently Nevada products and can advise on compatibility with your existing Trendmaster Pro system. Buying from BluePLC Industrial ensures authentic parts and reliable supply chain support.