Product Overview
When roller element bearings fail unexpectedly, the resulting downtime can halt production and inflate maintenance costs. The Bently Nevada 200157-13-05 Enveloping Trendmaster Pro accelerometer delivers precise vibration data to detect early signs of bearing wear and cavitation effects. This sensor is part of the Trendmaster Pro family and is designed for continuous monitoring in harsh industrial environments.
Technical Specifications
Key performance parameters of the 200157-13-05 include a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz with ±12% tolerance. The measurement range spans ±245 m/s² (±25 g), and the frequency range covers 10 to 10,000 Hz (600 to 600,000 cpm). Mounted resonant frequency exceeds 20 kHz (>1200 kcpm). Amplitude linearity is ±2% from 1 to 10 g peak, and transverse sensitivity is ≤7%. Settling time is ≤300 ms within 5% of bias. Excitation voltage ranges from 4.7 to 5.5 Vdc, with quiescent current under 800 µA and output bias voltage of +2.5 ± 0.23 Vdc.
Industry Applications
Engineers rely on the 200157-13-05 for roller element bearing condition monitoring and detecting certain cavitation effects in pumps and compressors. Its wide frequency response and enveloping capability make it ideal for identifying early-stage bearing defects before they lead to catastrophic failure. In paper mills and petrochemical plants, this accelerometer helps schedule maintenance proactively, reducing unplanned outages.
Installation & Setup Guidance
Mount the accelerometer using the 3/8-24 female thread with a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). The mounting stud option is 13 3/8-24 to 5/16-18 UNC, 3/4 inch hex stud. Ensure the mounting surface is clean and flat for optimal coupling. Allow 24 hours cure time if using adhesive mounting. The sensor operates over a temperature range of -40 ºC to +105 ºC (-40 ºF to +221 ºF) and withstands axial shock up to 49,050 m/s² pk (5,000 g pk).
Maintenance & Reliability
Routine inspection of the accelerometer and its cable connections helps maintain signal integrity. The hermetically sealed 316L stainless steel housing provides sealing of 5X10⁻⁸ atm•cc/s maximum, protecting against moisture and contaminants. With 100% relative humidity tolerance (condensing, non-submerged), the 200157-13-05 delivers reliable performance in wet environments. Periodic verification of output bias voltage ensures the sensor remains within specification.
Compatibility & Integration
The 200157-13-05 works with the ProTIM option for standard acceleration-to-velocity with acceleration enveloping channel type (-06). It is compatible with Bently Nevada monitoring systems that accept IEPE-type accelerometer inputs. The sensor outputs a positive signal (SIG+ positive with respect to SIG-) for acceleration from base to connector.
Selection Guide & Purchasing Advice
Before purchasing, verify that your monitoring system supports the 4.7 to 5.5 Vdc excitation voltage and can accept the 10.2 mV/(m/s²) sensitivity. The multiple approvals (CSA, ATEX, and IECEx) make this model suitable for hazardous area installations. SpareTechPLC stocks the Bently Nevada 200157-13-05 Enveloping Trendmaster Pro accelerometer and can provide current availability and lifecycle information.
Frequently Asked Questions
What is the frequency range of the 200157-13-05?
The frequency range is 10 to 10,000 Hz (600 to 600,000 cpm) referenced to 80 Hz with ±10% tolerance.
What is the mounting thread size?
The mounting thread is 3/8-24 female. The mounting stud option is 13 3/8-24 to 5/16-18 UNC, 3/4 inch hex stud.
What approvals does this accelerometer carry?
The 200157-13-05 has multiple approvals: CSA, ATEX, and IECEx (code 05).
What is the typical weight of the sensor?
The weight is 58 g (2.0 oz), typical.
Can this sensor be used in high-humidity environments?
Yes, it can withstand 100% relative humidity, condensing, non-submerged conditions.
