| 品牌 | 丹麦B K | 型号 | 4231 |
| 类型 | 数字式噪音计 |
销售专线：0760-88625886 88635552 88625833 
丹麥B&K聲校準器-4231产品特点及技术参数
原装进口,中山力高是丹麦B&4231型 聲級校準器代理商,质量保证、价格优惠。
4231型 聲級校準器，提供頻率1 kHz，聲壓級94 dB或114 dB的校準信號(±0.2 dB)，用於聲級計及其他聲測量設備校準
特点:
- 符合EN/IEC60942 (2003)和ANSI S1.40 – 1984 标准
- 校正±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 1ANSIS1.40–1984 (R1997)
? Robust pocket-size design with highly stable levelfrequency
? Calibration accuracy ?0.2 dB
? 94 dB SPL,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 metersother sound measurement equipment
