数字噪音器AR824产品详细说明
| |
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 |
√
|
√
|
| 值锁定 |
| Sampling Frequency |
2 times/sec
|
2 times/sec
|
|
