Sound Calibrator - Type 4231

Sound Calibrator Type 4231 is a handy, portable sound source for calibration of sound level meters and other sound measurement equipment. The calibrator is very robust and stable, and conforms to EN/IEC 60942 Class LS and Class 1, and ANSI S1.40-1984.

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Används vid Calibration of sound level meters and other sound measurement equipment

Egenskaper Conforms to EN/IEC60942 (2003) Class LS and Class 1, and ANSI S1.40 – 1984 Robust pocket-size 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 networks Fits Brüel &Kjær 1″ and 1/2 ″microphones (1/4" and 1/8″microphones with adaptor) Switches off automatically when removed from the microphone

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