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D9241A Sensor

D9241A Sensor
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D9241A Sensor

Product catalog summary
Description and Features
The D9241A is a high sensitivity acoustic emission sensor operating at a frequency of 30 kHz. It is designed with low resonance frequency and low noise, featuring a differential output for enhanced performance. The sensor is equipped with excellent EMI shielding, a rugged stainless steel cavity, and a ceramic face for ground isolation. It includes an integral cable with a differential BNC connector, ensuring high common noise rejection in electrically noisy environments.

Applications
This sensor is ideal for environments requiring excellent EMI shielding, low frequency, and high sensitivity. A typical application is monitoring large power transformers.

Operating Specifications
  • Dynamic: Peak Sensitivity is 82 dB, with an operating frequency range of 20 - 60 kHz and a resonant frequency of 30 kHz.
  • Environmental: Operates within a temperature range of -45 to 125ºC and can withstand shocks up to 500 g. The sensor is fully enclosed for RFI/EMI immunity.
  • Physical: Dimensions are 0.936” diameter x 0.788” height (23.77 x 20.01 mm), weighing 56 grams (82 grams with a 1-meter cable and connector). The case is made of stainless steel, with a ceramic face and epoxy seal. The connector is a side-located BNC differential.

Ordering Information and Accessories
The D9241A sensor comes with a NIST Calibration Certificate and Warranty. Accessories include a magnetic hold-down (MHD9241A), amplifier (AE2A), and preamplifiers (0/2/4, 2/4/6). Cables can be specified by length.

Additional Information
MISTRAS Group, Inc. reserves the right to amend specifications without notice. The company is ISO 9001 certified, ensuring quality management standards.
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Catalog excerpts

D9241A Sensor-1

Acoustic Emission Sensor Description and Features Operating Specifications The D9241A is a high sensitivity, low resonance frequency, low noise sensor with a differential output. It has very good Featuring a rugged stainless steel cavity, ceramic face for sensor ground isolation and integral cable with differential BNC connector, the D9241A provides high common noise rejection and low noise, even in electrically noisy environ- Completely enclosed crystal for RFI/EMI immunity Applications The sensor can be used in any place that requires sensor to have very good EMI shielding, low frequency and high sensitivity. One of typical application for the sensor is to monitor big power transformers. Sensor to Preamp Cable Due to continuing improvement, MISTRAS Group, Inc. reserves the right to amend specifications without notice. Copyright © 2010 MISTRAS Group Inc. All Rights Reserved. Email: [email protected] www.mistrasgroup.com Sensors include NIST Calibration Certificate & Warranty 195 Clarksville Road, Princeton Junction, NJ 08550 Products & Systems Division Frequency response of the D9241A. Calibration based on ASTM E1106; Calibration based on ASTM E976.

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