Keysight V3500A User Manual page 32

2 Knowing your Instrument
Table 2-1 V3500A keypad functions (continued)
Key Description
Press MENU to enter the menu mode. The four arrow keypads are active in menu mode only. When
the V3500A is in normal mode, the four arrow keypads are inactive.
The up and down menu keypads select different menus. For example, these keypads can be used to
change from the "Averaging" menu to "Units" menu.
The left and right menu keypads allow users to adjust the settings in a given menu. For example, in
the "Averaging" menu, these keys are used to select the number of averages performed by
the V3500A.
Under normal mode, the V3500A power reading is updated continuously. In some cases, this may be
undesirable. For example, the V3500A might be connected to a signal source in a location that
makes it difficult to read the display. Press HOLD for the most recent reading to be frozen on the
display and is no longer updated. This allows the user to disconnect the V3500A from the source and
then read the display. Press HOLD again to disable the hold function and the display will once again
be updated continuously. When the hold function is enabled, the letter "H" is displayed on the upper
right-hand corner of the display.
Press MENU to access any functions that are not available to the user directly from the front panel
keypad. It also allows users to enter or exit the V3500A menus. Press MENU once causes the power
display to be replaced with the menu display. The menu can be navigated with the menu navigation
keypads. Press MENU again to exit the menu mode and the display will return to normal mode.
The V3500A display and keypads are backlit to allow visibility in dark environments.
Press BACKLIGHT to turn on and off the LCD backlight display and keypads. In order to conserve
battery power, the backlight will automatically be turned off after one minute delay (default setting).
You can change the delay setting using the V3500A menus.
12 V3500A User's Guide