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    噪音计/声级计校准器NC-72(日本理音RION ) | 
     
   
 
 
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    理音(RION)噪音校准器NC-72主要产品参数:
| 适用标准  | 
IEC942-1988 class0L  |  
校准噪音计 麦克风种类 | 
1, 1/2 or 1/4 inch |  
| 校准信号  | 
114 dB ± 0.2 dB (at 1 atmospheric pressure) Tolerance: ±0.15 dB |  
| 精度  | 
±0.15dB  |  
| 频率范围  | 
250 Hz ± 1 %, Distorsion: < 3 %  |  
| 精度  | 
±20Hz  |  
| 电源  | 
IECLR06×2  |  
| 尺寸及重量  | 
Approx. 44 (L) X 62 (W) X 170 (D) mm Approx. 740 g   |  
| 附件  | 
盒子一个;电池二节;1/2inch适配器NC-74-0021个  |   
英文介绍: 
- Sound pressure level 114 dB at 250 Hz
 
- Standard sound source for laboratory studies
 
- High accuracy and stability
 
- Class 0L IEC 60942: 1988
  
Specification  
| Applicable standards | 
IEC942-1988 class0L |  
| Applicable microphone | 
1, 1/2 or 1/4 inch |  
| Nominal output sound pressure level | 
114 dB ± 0.2 dB (at 1 atmospheric pressure) Tolerance: ±0.15 dB |  
| Frequency | 
250 Hz ± 1 %, Distorsion: < 3 % |  
| Power requirement | 
IEC R6 battery X 6 Battery life: LR6 (alkaline) approx. 13 h |  
| Dimensions and weight | 
Approx. 44 (L) X 62 (W) X 170 (D) mm Approx. 740 g (incl. batteries)  |    | 
   
  
	| 上海君达代理销售噪音计/声级计校准器NC-72,提供噪音计/声级计校准器NC-72技术咨询以及噪音计/声级计校准器NC-72的售后服务,如对噪音计/声级计校准器NC-72感兴趣,请拨打电话021-64515630咨询! |   
 
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