AR-824數(shù)字噪音計的詳細(xì)介紹GENERALFEATURES SPECIFICATIONS一般功能和規(guī)格 AR-814AR-824MeasuringRange30～130dBA30～130dBA測量范圍35～130dBC35～130dBCAccuracy 1.5dB 1.5dB測量精確度FrequencyRange31.5HZ-8.5KHZ31.5HZ-8.5KHZ頻率響應(yīng)LinearityRange50dB50dB動態(tài)范圍AC/DCOutput AC/DC信號輸出AutoPowerShutOff 自動關(guān)機(jī)功能LowBatteryIndication 低電顯示功能OverRangeIndication 過載提示Digit Resolution5Digits 0.1dB5Digits 0.1dB數(shù)位及分辨率TimeWeightingSelectionFast/SlowFast/Slow動態(tài)特性選擇Microphone1/2InchElectretCondenserMicrophone麥克風(fēng)1/2英寸電容式麥克風(fēng) FrequencyWeightingA CA C頻率加權(quán)特性SoundMeasuringLevelSelection 測量檔位選擇MaxHoldFunction 最大值鎖定SamplingFrequency2times/sec2times/sec取樣頻率 GENERALCHARACTERISTICS一般特征Power9V（AlkalineorDCAdapter）6V（4*AAAlkalineorDCAdapter）供電9V堿性電池或者電源適配器4節(jié)1.5VAA堿性電池或6V電源適配器LCDsize30*50mm30*50mmLCD尺寸ProductColorIvoryIvory產(chǎn)品顏色象牙白象牙白ProductNetWeight178g300g（includebattery）產(chǎn)品凈重ProductSize207*70*29mm265*70*35mm產(chǎn)品尺寸 PACKINGINFORMATION包裝包裝方式1（中國）彩盒包裝彩盒包裝標(biāo)準(zhǔn)外箱容量2020標(biāo)準(zhǔn)外箱尺寸55.0*45.0*26.5cm57.0*51.7*23.8cm標(biāo)準(zhǔn)外箱毛重13.96kg10.5kg包裝方式2（OtherCountries）BlisterBlisterStandardQuantityPerCarton2020StandardCartonSize41.0*37.5*33.2cm41.0*37.5*33.2cmStandardCartonGrossWeight5.76kg6.2kg