Agilent Technologies 53151A ユーザーズマニュアル

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Chapter 2  Operating Your Frequency Counter
Using the Selection Keys
Operating Guide
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2
Using the Selection Keys
There are six Selection keys—four “arrow” keys, the Enter key, and the 
sign (+/–) key. The functions of the arrow keys depend on the Counter’s 
operating mode (i.e., sequencing through choices in the Menu, numeric 
entry, state change, etc.). This section describes how the Selection keys 
function in these different operating modes.
Sequencing Through the Menu
To access the Menu, press the Shift key, and then press the Menu 
(Reset/Local) key.
Press the up- or down-arrow key to go forward to the next menu 
function or back to the previous menu function. Pressing either of these 
keys repeatedly cycles through the list of menu functions.
Press the right-arrow key to select a function. When you do this, the 
flashing annunciator (   ) changes direction and the current setting 
flashes to indicate that you can now use the up- and down-arrow keys 
to cycle through the available settings.
Press the up- or down-arrow key to move through the list of available 
settings for a function. Pressing either of these keys repeatedly cycles 
through the list of settings.
Press the Sign (+/–) key to change the sign of numeric values.
Press the Enter key to accept the currently displayed setting and exit 
the Menu.
NOTE
In most cases, when you reach the top or bottom of a list of settings, or the 
left or right end of a numerical field, the focus rolls over to the opposite 
end of the list of settings, or wraps around to the opposite end of the 
numeric field. In some situations, however, this does not occur, because if 
it did, you could choose an illegal setting. For these settings, you have to 
use the opposite button to cycle back through the values or settings.
Reset/
Local
Menu
Shift
Enter
+/-