Key
Main Function
1
2
3
4
5
6
7
8
9
0
.
Enter
33
Definition
Number key "1"
Number key "2"
Number key "3"
Number key "4"
Number key "5"
Number key "6"
Number key "7"
Number key "8"
Number key "9"
Number key "0"
Point key
This key confirms data entry
Chapter 2