GENERAL FEATURES & SPECIFICATIONS | 一般功能和规格 | | | 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 | 取样频率 |
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