久精品最新203无码观看国产日韩_日韩精品亚洲人成在线摄放_青草青草久热精品视频在线观看_女同性恋超碰在线_水果派134有贤妻如花似玉_日韩精品无码一级观看_欧洲美女高清一级毛片_国产中文字幕综合_无码高潮潮喷视频_日韩精品成人av

電壓矢量測量選件測試儀T Rex

GROUND THE INSTRUMENT: To minimize shock hazard, the instruments Ground Terminal must be connected to a properly grounded receptacle. In many cases, the quality of the safety ground provided by the power cord does not fulfil safety needs. Also the power cord supplied with the equipment must be connected an electrical receptacle with an electrical ground (safety earth ground). Non grounded instruments are dangerous and may cause instrument damage.

KEEP AWAY FROM LIVE CIRCUITS: Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be made by qualified service personnel. Do not replace components with power cable connected. To avoid injuries, always disconnect power, discharge circuits, and remove external voltage sources before touching components. 電壓矢量測量選件測試儀T Rex