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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) | |
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