The numeric keyboard consists of the following parts: 1. • The input mode is fixed at number input during parameter setting. During parameter setting, press this key to input the symbol (“-”) of the figure. When the key is pressed for the first time, the parameter symbol is “-”. • Press to switch among Chinese, English and number input during file or folder name editing. 2. Number/Letter • Multiplexing keys for numbers and letters. They are used to directly input the desired number or letter. • 0 is the multiplexing key for 0. Press this key to input 0 in number input. 3. • Press this key to input a decimal point at the current cursor position in number input. 4.
ENTER • When pressed during parameter editing process, the system will complete the input and insert a default unit for the parameter automatically. • While in the process of file name editing, this key is used to input the character currently selected by the cursor. 5. ESC CANCEL • During parameter editing process, press this key to clear the inputs in the active function area and exit parameter input. • While in the process of file name editing, press this key tol delete characters that have been entered. • Press this key to turn off the display of the active function area when the main measurement screen is displayed. • Press this key to exit the current test mode in keyboard test.
• Press this key to unlock the screen when it is locked. 6. BACK • During the process of parameter editing, press this key to delete the character on the left of the cursor. • While in the process of file name editing, press this key to delete the character on the left of the cursor.