|
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 |
| Microphone |
1/2 Inch Electret Condenser Microphone |
| 麦克风 |
1/2 英寸电容式麦克风 |
|
| 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 |
Measuring Range 30～130dBA 30～130dBA
测量范围 35～130dBC 35～130dBC Accuracy ±1.5dB ±1.5dB