数字噪音器AR824
|
AR-814 |
AR-824 | |||||
| Measuring Range |
30～130dBA |
30～130dBA | ||||
| 测量范围 |
35～130dBC |
35～130dBC | ||||
| Accuracy |
±1.5dB |
±1.5dB | ||||
| 测量精确度 | ||||||
| Frequency Range |
31.5HZ-8.5KHZ |
31.5HZ-8.5KHZ | ||||
| 频率响应 | ||||||
| Linearity Range |
50dB |
50dB | ||||
| 动态范围 | ||||||
| AC/DC Output |
√ |
√ | ||||
| AC/DC 信号输出 | ||||||
| Auto Power Shut Off |
√ |
√ | ||||
| 自动关机功能 | ||||||
| Low Battery Indication |
√ |
√ | ||||
| 低电显示功能 | ||||||
| Over Range Indication |
√ |
√ | ||||
| 过载提示 | ||||||
| Digit & Resolution |
5Digits & 0.1dB |
5Digits & 0.1dB | ||||
| 数位及分辨率 | ||||||
| Time Weighting Selection |
Fast/Slow |
Fast/Slow | ||||
| 动态特性选择 | ||||||
| ||||||
| Frequency Weighting |
A & C |
A & C | ||||
| 频率加权特性 | ||||||
| Sound Measuring Level Selection |
√ |
√ | ||||
| 测量档位选择 | ||||||
| Max Hold Function |
√ |
√ | ||||
| 最大值锁定 | ||||||
| Sampling Frequency |
2 times/sec |
2 times/sec | ||||