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FC-3000频率计特性：测量范围：1Hz-3.7GHz功能：周期、计数、转速、自检灵敏度：10mVrms9位LED显示闸门时间：0.01s 0.1s 1s10s性能参数A通道输入特性：频率范围:0.1Hz-100MHz(DC Coupled)30Hz-100MHz(AC Coupled)灵敏度:0.1Hz to 100Mhz: 30mV耦合:AC or DC selectable阻抗:1MΩ <40pF低通滤波器:-3dB at 100kHz switch selectable分辨率和显示位数:时基选择INTEXTINTEXTINTEXTINTEXT闸门时间0.01s0.1s1s10s显示位数56677889频率(输入A)分辨率0.1Hz-0.99Hz10µHz1µHz1µHz0.1µHz0.1µHz10nHz10nHz1nHz1Hz-9.9Hz0.1mHz10µHz10µHz1µHz1µHz0.1µHz0.1µHz10nHz10Hz-99Hz1mHz0.1mHz0.1mHz10µHz10µHz1µHz1µHz0.1µHz100Hz-999Hz10mHz1mHz1mHz0.1mHz0.1mHz10µHz10µHz1µHz1Khz-9.9Khz0.1Hz10mHz10mHz1mHz1mHz0.1mHz0.1mHz10µHz10Khz-99Khz1 Hz0.1Hz0.1Hz10mHz10mHz1mHz1mHz0.1mHz100Khz-999Khz10Hz1Hz1 Hz0.1Hz0.1Hz10mHz10mHz1mHz1Mhz-9.9Mhz100 Hz10Hz10Hz1Hz1 Hz0.1Hz0.1Hz10mHz10Mhz-99Mhz1kHz100Hz100 Hz10Hz10Hz1Hz1 Hz0.1Hz100Mhz10kHz1kHz1kHz100Hz100 Hz10Hz10Hz1Hz精度:±Time base error ± resolution周期范围:10ns to 10s显示:带小数点的n. u. m. sec计数频率范围:DC - 30Mhz计数范围:0-999 999 999溢出:‘OF’转速范围:6 to 600x107RPM输入电压:0-500Hz:250V(Peak AC+DC)500Hz-10MHz:100V(Peak AC+DC)10MHz-100MHz:25V(Peak AC+DC)C通道输入特性：频率范围:80MHz-3.7GHz灵敏度:80MHz-2.0GHz:10mV2.0GHz-3.0GHz:20mV3.0GHz-3.2GHz:35mV3.2GHz-3.5GHz:40mV3.5GHz-3.7GHz:70mV.耦合:AC only阻抗:50Ω <40pF输入电压:3Vrms(sine wave)分辨率和显示位数:时基选择INTEXTINTEXTINTEXTINTEXT闸门时间0.01s0.1s1s10s显示位数56677889时基特性：类型:TCO(温控晶振)频率:10.000000MHz稳定度:±1PPM(±1 count)线电压稳定度:less than±1PPM (within±10% line voltage variation)温度系数:±1PPMfrom 0℃to 50℃内部标准输出:10MHz(internal standard output)电平:1Vpp or more阻抗:约600Ω尺寸和重量：尺寸：260mm(W) X 395mm(H) X 100mm(D)重量：4kg