特点:PREFIX = O

-  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