特點GDM-8255:199999CountsDisplayGDM-8251:120000CountsDisplayVFDDualColorDisplayAuto/ManualRanging2/4WireResistanceMeasurementTemperatureMeasurementTrueRMS(AC,AC+DC)SelectableMeasurementRate16-ChannelScannerCard(Option)FrequencyMeasurementMax./Min.,REL,dBm,Compare,Math,Store,Recall,dB規(guī)格FULLSCALE 199999CountsSAMPLAERATE Slow:51/2digits,10readings/secondMedium:41/2digits,30readings/secondFast:31/2digits,60readings/secondDCVOLTAGERange100mV,1V,10V,100V,1000V5rangesAccuracy (0.012%rdg+5digits)InputImpedance10M ACVOLTAGETrueRMS(ACorAC+DCTrueRMS)Range100mV,1V,10V,100V,750V5rangesAccuracy20Hz~45Hz: (1%rdg+100digits)45Hz~10kHz: (0.2%rdg+100digits)10kHz~30kHz: (1%rdg+100digits)30kHz~100kHz: (3%rdg+200digits)InputImpedance10M DCCURRENTRange10mA,100mA,10A3rangesAccuracy10mA,100mA: (0.05%rdg+15digits)10Arange: (0.2%rdg+5digits)ACCURRENTTRUERMS(ACorAC+DCTRUERMS)Range10mA,100mA,10A3rangesAccuracy10mA,100mArange：20Hz~50Hz: (1.5%rdg+100digits)50Hz~10kHz: (0.5%rdg+100digits)10kHz~20kHz: (2%rdg+200digits)RESISTANCERange100 ,1k ,10k ,100k ,1M ,10M ,100M 7ranges2WAccuracy100 range: (0.1%rdg+8digits)(*);1k ~1M 4ranges: (0.08%rdg+5digits)10 Mrange: (0.3%rdg+5digits);100M range: (3%rdg+8digits)4WAccuracy100 range: (0.05%rdg+8digits)(*);1k ~1M 4ranges: (0.05%rdg+5digits)10 Mrange: (0.3%rdg+5digits);100M range: (3%rdg+8digits)DIODETESTOpenCircuitVoltage2.0V,TestCurrent0.5mAFREQUENCY20Hz~300kHzCONTINUITYBEEPER1~1000 TEMPERATURE0C ~300C :J,K,TTypeOTHERFUNCTIONSAutorange/Manual,Math:MX+B/%/1/X;Max,Min,dBm,dB,REL,Hold,Compare,Store,RecallDISPLAYVFD,TwoColorsDualDisplayINTERFACEStandard:RemoteI/O,USB,RS-232COption:ScannerCardPOWERSOURCEAC100V~240V 10%,50/60HzACCESSORIESUsermanualx1,Powercordx1,TestleadGTL-117x1,CalibrationkeyGDM-01x1(CompatiblewithFluke5720A/5725Acalibratorsonly)DIMENSIONS WEIGHT265(W)x107(H)x350(D)mm,Approx.2.6kg