Table 1. Model 4540 Keypad Functions
Store most recent data in the current project.
Display the most recent data.
Select or create a project file and view,
output, or erase project data file.
Displays gauge status information.
Displays the gauge Setup menu.
Enable, disable, or change an offset.
Select, enter, or disable a Proctor.
Manually toggle the LCD backlight on or off.
Respond yes to yes/no questions.
Respond no to yes/no questions.
Return the display to the Ready screen
without storing or updating the data.
Enter numbers and access menu options.
Moves cursor back one space.
Scroll through menu options or view screens.
Accept data entry or begin a measurement.