The Rion NC-74 Sound calibrator generates a constant sound pressure of 94 dB at 1kHz.
The Rion NC-74 is designed to be a compact and lightweight unit which requires no atmospheric pressure compensation.
This is done by incorporating a sensor which detects the atmospheric pressure which is in turn detected by the CPU which controls the signal amplitude. This eliminates the need for any pressure compensation.
The Rion NC-74 Sound Calibrator is suitable for 1” and ½“ microphones
Rion NC-74 Sound Calibrator complies with the IEC 60942:2003(JIS C 1515:2004) Class LS/C
Features:
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Allows for calibration with accuracy of + 0.3 dB
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Usable in wide temperature and humidity range.
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Usable as a standard sound source in laboratories or as a calibration sound source for sound level meters on site.