超声测厚仪欧标校准N15317-2013
电池电压过低警告Lowbattery warning
操作电压范围Operation voltage range
操作电流范围Operation current range
脉冲重复频率Pulse repetition frequency, PRF
发射脉冲电压上升反冲和持续时间Transmitter pulse shape，rise time and peak voltage
校准设置存储Calibration setting storage
显示和调用Display and recall
外观检查General mechanical state and external aspects