Sound Calibrator | B&K Type 4231

Sound Calibrator | B&K Type 4231


Sound Calibrator by Brüel & Kjær delivers in-field, class 1 calibration of any microphone, sound level meter and other acoustic measuring equipment.

Contact :

A DIVISION OF SPECTRIS TECHNOLOGIES PVT. LTD.5th Floor, Arihant Nitco Park,

#90 Dr. Radhakrishnan Salai,

Chennai 600004

India Sales: +91 44 4214 16 / 73 / 72

Service: +91 44 42141674

Fax: +91 44 4208-7756Email: sales-india@hbkworld.com

Email: service-india@hbkworld.com

  • Conforms to EN/IEC 60942 (2017) Class 1, and ANSI S1.40- 2006
  • Robust, pocket-sized design with highly stable level and frequency
  • Calibration accuracy ±0.2 dB
  • 94 dB SPL or 114 dB SPL for calibration in noisy environments
  • Extremely small influence of static pressure and temperature
  • Sound pressure independent of microphone equivalent volume
  • 1 kHz calibration frequency for correct calibration level independent of weighting network
  • Fits Brüel & Kjær 1? microphones (1/2?, 1/4? and 1/8?? microphones with adaptor)
  • Switches off automatically when removed from the microphone

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