◆ 测量参数 Measure parameters：
     放大倍数β(0~99)
     开关时间 Switching time T (0.01μs~99.9μs)，包括上升时间，存储时间，下降时间 including Tr，Ts，Tf
     饱和压降 VCES (0~2V)，正向压降 VBE (0~2V)
     漏电流 Leakage current ICEO (0.1μA~3mA)
     耐压 Withstand voltage BVCEO (50V~650V)
◆ 对测试的开关时间、β进行分档，可显示批号；对VCES、VBE、ICEO、BVCEO 进行超限判断，不合格的发出声光报警，并用指示灯指明不合格项
     Pre-set grouping values for T & β, selector can display group number and alarm when measured values of  VCES, VBE, ICEO and BVCEO exceed t
     he limit, meanwhile indicating the unqualified item
◆ 测试条件可按要求自由调节或设定 Freely adjustment or set of testing conditions according to requirement
    A. β测试 Ib 注入电流有三档  Three different Ib currents for β test: 0.1mA, 1mA, 10mA
    B. 开关时间测试 Ic 电流有四档  Four different Ic currents for switching time test: 0.5A, 0.25A, 0.1A, 0.05A
                              对应 Ib电流为the corresponding currents Ib : 0.1A, 0.05A, 0.02A, 0.01A
    C. 漏电流 ICEO 测试电压 Test voltage for leakage current ICEO: 50~650V 连续可调 continuously adjustable
◆ 分档、超限判断可自由设定，掉电自动保存，仪器能同时保存20组数据，使用时只要调出其中一组即可 
    Grouping values and limit values freely set, with automatically saving function in case of power cut; the instrument can save 20 different settings,
    choose one setting when using
◆ 四窗口数字显示所测数据，读数直观 4 windows for displaying measured values, easy to read, and printable