Bently Nevada 200157-06-05 Piezoelectric Transducer

Product Overview

The Bently Nevada 200157-06-05 is a specialized transducer optimized for the Trendmaster Pro diagnostic suite. It is specifically designed for "enveloping," a signal processing technique used to pinpoint the high-frequency impacts of failing bearings. A major technical advantage is the 58 g (2.0 oz) typical weight of the sensor; by minimizing mass, Bently Nevada ensures the 200157-06-05 has a superior mounted resonant frequency, allowing it to capture high-frequency stress waves without the signal distortion caused by mass loading. This model utilizes a 1/4 NPT 3/4-inch hex stud for a rigid, pressure-tight installation.

Advanced Frequency Response & Accuracy

Accurate trend analysis requires high-quality data input. The Bently Nevada 200157-06-05 offers a sensitivity of 10.2 mV/(m/s²) (100 mV/g) and a measurement range of ±25 g. Its frequency response is referenced to 80 Hz and remains linear (±10%) from 10 Hz up to 10,000 Hz. Despite its compact 58g size, the sensor boasts a mounted resonant frequency greater than 20 kHz, making it an ideal choice for the early detection of mechanical faults that manifest as high-frequency vibration spikes.

Technical Specifications

Environmental Protection & Reliability

Designed for long-term deployment in harsh industrial settings, the Bently Nevada 200157-06-05 is encased in a 316L stainless steel housing. It is hermetically sealed to a maximum leak rate of 5X10⁻⁸ atm·cc/s and is rated for 100% relative humidity (condensing). With an operating temperature range of -40 ºC to +105 ºC and an axial shock limit of 5,000 g peak, this 58g transducer is built to withstand the rigorous conditions of chemical plants, offshore rigs, and power stations.

Installation & Electrical Characteristics

The 200157-06-05 operates on an excitation voltage of 4.7 to 5.5 Vdc with a low quiescent current of less than 800 µA. For consistent performance, the sensor should be torqued to a range of 2.7 to 6.8 N•m. The shear-geometry ceramic sensing element is highly resistant to base strain and thermal transients, ensuring that the 58-gram accelerometer only reports true vibration data. The 1/4 NPT mounting stud (3/4-inch hex) ensures a secure mechanical bond to the asset, facilitating the transmission of high-frequency energy required for enveloping diagnostics.

Technical FAQs

Q1: Why is the 58g weight significant for the Bently Nevada 200157-06-05?
A1: A lower weight (58g) increases the sensor's usable frequency range by preventing mass-loading, which is essential for accurate high-frequency "enveloping" measurements in bearing analysis.

Q2: What is the difference between the "06" and other mounting options?
A2: Option 06 specifically provides a 1/4 NPT tapered thread with a 3/4-inch hex stud, which is a standard industrial fitting for many pumps and motors.

Q3: Can a Certificate of Origin be provided for this part?
A3: Yes, since the 200157-06-05 is manufactured in the U.S.A., an optional Certificate of Origin (COO) is available upon request for international shipping and compliance.