Section 2 — Instrument Fundamentals23Section 2 — Instrument FundamentalsThis section explains how to:• Switch your instrument on and off• Navigate around menus and select menu items• Enter and edit characters and punctuation• View hint labels for the buttons on your screen• Access more detailed help for a featureSwitch Instrument On or OffYou can press the power button to switch your instrument on oroff.NOTE: If your instrument is switched on and it has a battery stateabove 25%, it will enter Sleep mode when you press the powerbutton. If the battery has less than 25% charge remaining,your instrument will enter Complete Powerdown Mode when youswitch it off.When you switch your instrument on, the main menu displays thefollowing details:• The remaining battery charge amount• Today's date and time• The serial number and firmware version• Your user-defined description• The name of the currently selected folderTIP: You can press and hold either cancel button to return tothe main menu.