主要特征：■ 定电流、定电压、定电阻、定功率模式■ 40种存储呼叫记忆■ 定电流工作模式提供静态/动态测试功能■ 提供电池放电测试功能并可记录测试数据■ 测试过程中可改变测试参数■ 内建短路测试并量测短路电流■ 输入电压上、下限判别功能■ 四位半表显示电压、电流、电阻、功率型号与参数：ModelTR668/TR668RTR668A/TR668R CC/CR/CV/CPCC/CR/CV/CPRatings Voltage60V300VCurrent60A10APower300W300WMinOperatingStartVoltage1.5V1.5VConstantCuttentMode RangeHigh/low:0-60AHigh/low:1-10AAccuracy0.3%+3counts0.3%+3countsResolutionHigh/Low:1mAHigh/Low:1mAConstantResistanceMode RangeHigh/Low:0.05 -4k High/Low:0.5 -9.999k Accuracy1%1%ResolutionHigh/Low:1m High/Low:1m ConstantVltageMode Range0-60V0-300VAccuracy0.5%0.5%Resolution1mV1mVConstantPowerMode Range0-300W0-300WAccuracy0.5%0.5%Resolution1mW1mWDynamicOperation DynamicModeCCModeCCModeSettingTimeHigh/Low:20us-9999secHigh/Low:20us-9999secSlewRateHigh/Low:1mA-2.5A/usHigh/Low:1mA-9.999A/usAccuracy5%5%VoltageReadBack Accuracy0.1%+10mV0.1%+10mVResolutionHigh:0.01VLow:0.001VHigh:0.1VLow:0.01VCurrentReadBack Accuracy0.3%+20mA0.3%+20mAResolutionHigh:0.01ALow:0.001AHigh:0.01ALow:0.001ACurrentmonitor FullScaleOutputVoltage10V/60A10V/10AAccuracy2%+100mV2%+100mAFunctionBuilt-inwithshortcurrentindicate Memory40settestparameterstore,recallfunctionGeneral OperationEnvironmentTemeperature:0-40℃Humidity: 80%RHPowerConsumption100WmaxPowerRequirement100V/120V/220V/240VFrequency50/60HzWeightTR668R/TR668AR:29kgTR668/TR668A:7kgDimension(W H D)TR668R/TR668AR:430 177 440mmTR668/tr668A:177 110 440mm