產(chǎn)品簡介
AR824數(shù)字噪音計:香港?,擲MART數(shù)字聲級計AR824,測量范圍:30~130dBA,35~130dBC 。
產(chǎn)品詳細信息
AR824數(shù)字噪音計|香港?,擲MART數(shù)字聲級計:SMARTSENSOR數(shù)字噪音計AR824 |
GENERAL FEATURES & SPECIFICATIONS | 一般功能和規(guī)格 | | | 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**度 | Frequency Range | 31.5HZ-8.5KHZ | 31.5HZ-8.5KHZ | 頻率響應 | Linearity Range | 50dB | 50dB | 動態(tài)范圍 | AC/DC Output | √ | √ | AC/DC 信號輸出 | Auto Power Shut Off | √ | √ | 自動關機功能 | 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 | 動態(tài)特性選擇 | Microphone | 1/2 Inch Electret Condenser Microphone | 麥克風 | 1/2 英寸電容式麥克風 |
| Frequency Weighting | A & C | A & C | 頻率加權特性 | 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 | 取樣頻率 |
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