型號BM3549測量范圍400k ~40G （M ）測試電壓500V/1000V/2500V（V） 數(shù)字絕緣測試儀+數(shù)字萬用表型號：BM3549 DigitalM Hitester Digitalmultimeter 面板校正PanelCalibrate,自動量程AutoRange 33/4位Digit,最大顯示MAXDisplay:3999 過載保護(hù)OverLoadProtection 帶背光Backlight,量綱及功能符號指示FunctioncharactersIndication 能直接測量絕緣電阻測試電壓CantestInsulationResistanceMeasuremeatVoltage 絕緣電阻InsulationResistance:400k ~40G 精度Accuracy:400k ~200M 3% 5,200M~4G 5% 5,4G~40G 10% 5 測試電壓MeasuemeatVoltage：500V/1000V/2500V 短路電流shortcircuitcurrent:不小于1.5mA 測試時(shí)間選擇Measuemeattime:1/2/10min(分) 萬用表功能： 直流電壓DCV:400m/4/40/400V 0.5% 5,1000V 0.8% 2 交流電壓ACV:4/40/400V 0.8% 5,700V 1% 5 直流電流DCA:40mA/400mA 0.8% 5 交流電流ACA:40mA/400mA 1% 5 電阻RESISTANCE:400/4k/40k/400k 0.8% 5,4M 1% 3,40M 3% 3