| |
AR-814
|
AR-824
|
| Measuring Range |
30～130dBA
|
30～130dBA
|
| 測量范圍 |
35～130dBC
|
35～130dBC
|
| Accuracy |
±1.5dB
|
±1.5dB
|
| 測量精確度 |
| Frequency Range |
31.5HZ-8.5KHZ
|
31.5HZ-8.5KHZ
|
| 頻率響應(yīng) |
| Linearity Range |
50dB
|
50dB
|
| 動(dòng)態(tài)范圍 |
| AC/DC Output |
√
|
√
|
| AC/DC 信號(hào)輸出 |
| Auto Power Shut Off |
√
|
√
|
| 自動(dòng)關(guān)機(jī)功能 |
| Low Battery Indication |
√
|
√
|
| 低電顯示功能 |
| Over Range Indication |
√
|
√
|
| 過載提示 |
| Digit & Resolution |
5Digits & 0.1dB
|
5Digits & 0.1dB
|
| 數(shù)位及分辨率 |
| Time Weighting Selection |
Fast/Slow
|
Fast/Slow
|
| 動(dòng)態(tài)特性選擇 |
| Microphone |
1/2 Inch Electret Condenser Microphone |
| 麥克風(fēng) |
1/2 英寸電容式麥克風(fēng) |
|
| Frequency Weighting |
A & C
|
A & C
|
| 頻率加權(quán)特性 |
| Sound Measuring Level Selection |
√
|
√
|
| 測量檔位選擇 |
| Max Hold Function |
√
|
√
|
| 大值鎖定 |
| Sampling Frequency |
2 times/sec
|
2 times/sec
|
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