特点:

-  符合EN/IEC60942 （2003）和ANSI S1.40 – 1984 标准

-  校正精度±0.2 dB

-  94 dB SPL和114 dB SPL2种校正电平

-  1 kHz校正频率

-  适用Brüel &Kjær 1″和1/2 ″测量麦克风 （1/4"和 1/8″需要选配适配器）

FEATURES:

❍ Conforms to IEC942 （1988） Class 1 ａnd ANSIS1.40–1984 （R1997）

❍ 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

❍ 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

USES:

❍ Calibration of sound level meters ａnd other sound measurement equipment