10
2 Structure features and Testing principle
2.1 Structure features
2.1.1 Hardness Tester
1: Main unit
2: Impact device
2.1.2
Main unit
1:
Socket of impact device
2:
Paper compartment cover
3:
TFT display
4: Keypad 5:
Power jack
6:
Socket of USB
7
Battery switch 8 Product label
9 Serial Number 10.Battery compartment cover
2
1
7
6
5
4
3
1
2
10
9
8
