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數(shù)字噪音計(jì)AR824
| GENERAL FEATURES & SPECIFICATIONS | 一般功能和規(guī)格 | |||||
| | ||||||
| | AR-814 | AR-824 | ||||
| Measuring Range | 30～130dBA | 30～130dBA | ||||
| 測(cè)量范圍 | 35～130dBC | 35～130dBC | ||||
| Accuracy | ±1.5dB | ±1.5dB | ||||
| 測(cè)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 | ||||||
| ||||||
| Frequency Weighting | A & C | A & C | ||||
| 頻率加權(quán)特性 | ||||||
| Sound Measuring Level Selection | √ | √ | ||||
| 測(cè)量檔位選擇 | ||||||
| Max Hold Function | √ | √ | ||||
| zui大值鎖定 | ||||||
| Sampling Frequency | 2 times/sec | 2 times/sec | ||||
| | ||||||