Bently Nevada 200157-19-05 Enveloping Trendmaster Pro Accelerometer

Product Overview

When roller element bearing failures or cavitation effects threaten rotating machinery uptime, the Bently Nevada 200157-19-05 Enveloping Trendmaster Pro accelerometer delivers precise vibration data for predictive maintenance. This sensor, part of the trusted Trendmaster Pro family, is engineered for demanding industrial environments where early fault detection is critical.

Technical Specifications

The 200157-19-05 accelerometer provides 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 is within ±2% (1 to 10 g pk), and transverse sensitivity is ≤7%. Settling time is ≤300 ms. Excitation voltage ranges from 4.7 to 5.5 Vdc, with quiescent current <800 µA and output bias voltage +2.5 ± 0.23 Vdc. Environmental ratings include axial shock limit of 49,050 m/s² pk (5,000 g pk), temperature range -40 °C to +105 °C (-40 °F to +221 °F), hermetic sealing at 5×10⁻⁸ atm•cc/s maximum, and 100% relative humidity condensing. Physical dimensions are 17.5 mm x 45.7 mm (11/16 in x 1.8 in), weight 58 g (2.0 oz) typical, with 3/8-24 female mounting thread and mounting torque 2.7 to 6.8 N•m (2 to 5 ft•lbf). The sensing element is ceramic with shear geometry, and the housing is 316L stainless steel. Cure time is 24 hours.

Industry Applications

This accelerometer is specifically designed for roller element bearing monitoring and detection of cavitation effects in pumps, compressors, turbines, and other rotating equipment. Its enveloping capability, combined with the ProTIM option for standard acceleration-to-velocity with acceleration enveloping, makes it ideal for early-stage fault identification. The 19 Quick-Set XDCR adapter simplifies installation on existing machinery.

Installation & Setup Guidance

Mount the 200157-19-05 using the 19 Quick-Set XDCR adapter with a 1-inch hex stud. Apply the specified mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf) to ensure proper coupling. Verify the polarity: SIG+ positive with respect to SIG- for acceleration from base to connector. Allow 24 hours cure time after installation before taking critical measurements.

Maintenance & Reliability

Routine inspection of the accelerometer and its mounting is recommended to maintain measurement accuracy. The hermetically sealed 316L stainless steel construction ensures durability in harsh environments with condensing humidity. Periodic verification of output bias voltage and sensitivity can confirm sensor health. Follow manufacturer guidelines for any servicing.

Selection Guide & Purchasing Advice

When ordering the 200157-19-05, confirm the mounting stud option (19 Quick-Set XDCR adapter) and approval code (05 for CSA, ATEX, and IECEx). Verify compatibility with your monitoring system, particularly the ProTIM option. For current lifecycle status and availability, contact BluePLC Industrial, your trusted source for industrial automation parts.