HP ESG Series User Manual page 99

9. Numeric Keypad
10. Arrow Keys
11. Return Key
12. Display Contrast Decrease Key
13. Display Contrast Increase Key
14. Local Key
15. Preset Key
16. Standby LED
Front and Rear Panel
Front Panel Overview
The numeric keypad consists of the digit keys (0 through 9), a decimal point key,
and a backspace key,
backspacing and for changing the sign of a value to positive or negative. Use these
keys at any time when the active function requires a value input.
The up and down arrow keys increase or decrease a numeric value. You can also
use these keys to scroll through displayed lists to select items. The left and right
arrow keys choose the highlighted digit in the active function display, which is
modified by the up and down arrow keys. You can also use these keys in a list to
select items in a row.
The key moves you from your current softkey menu to the softkey menu
Return
that precedes it. It will back up through the menus of the current hardkey until you
reach the first menu of that key.
Pressing the decrease contrast key and holding it down causes the display
background to gradually darken in comparison to the text on the display.
Pressing the increase contrast key and holding it down causes the display
background to gradually brighten in comparison to the text on the display.
Press this key to return the signal generator to local (front panel) control from
remote operation.
Press this key to set the signal generator to a known state (either the
factory-defined state or a user-defined state).
This yellow LED lights when the instrument is in standby condition. In standby,
the power switch is off but the instrument is still connected to the mains circuit by
way of the power cord.
4-4
. The backspace key has dual functions for both