... . impact energy: 300J Max. Impact height: 2000±5mm Hammer weight: 0.5,0.8,1.0,1.25,1 ... .0,12.5,16.0kg,error is ± 0.5% Hammer model: d25d90 , error is ±1 Sample diameter: 10 ... work mode: manual and auto mode. Operate easily. Single chip control. It can pick the hammer and display at real ... test result will be accurate. Auto-protection and auto-tip can improve the test safety and reliability. The low space ...