Quick Start EN 4.3 D-type impact device Fig. 2 D-type impact device 4.4 Profiled impact device Fig. 43 Profiled impact device Working principle Impact the sample surface with an impact body with specified mass at a certain speed HT360 series user manual Copyright©Qingdao Hantek Electronics Co.,LTD 10 1 Supporting ring 5 Conduit 2 Impact body 6 Loading set 3 Coil 7 Release button 4 Conductor