提供频率、周期与RPM量测 微电脑控制 在高频与低频，均具高解析度频率范围：0.01Hz ~ 2.7GHz高感度：10mVrms 1Hz档解析度：100nHz自我侦测诊断 可调式触发准位控制 显示锁定功能显示8位数with Hz, kHz, MHz, GHz, S, mS, µS, nS and overflowGate TimeContinuously vary from 10mS to 10S, or 1 period of input depending on whichever is greater准确度±(解析度±时基误差)频道A : 范围DC耦合0.01Hz～120MHz；AC耦合30Hz～120MHz感度10mVrms typical；50mVrms max耦合AC或DC, switchable滤波器Low pass, switchable in or out for channel A.阻抗1MΩ//40pF衰减器x 20dB触发准位调整-2.5 VDC to +2.5 VDC解析度The maximum resolution for frequency measurement is 100nHz for 1Hz and 0.1Hz for 100MHz input respectively, and for periPeriod8nS to 100S at least 7 digits displayedRangefor per second of gate timeRPM0.6 RPM～7200 x 106 RPM频道B : 范围50MHz to 2.7GHz感度≤50mVrms (10mVrms typical)耦合AC only时基: Aging Rate1 ppm, per Month温度5 ppm 23°C ±5°C电源变化±0.005 ppm for ±10%变化使用电源交流100V/120V/220V/240V ±10%, 50/60Hz