Menu Structure - Ametek 7124 Instruction Manual

Precision lock-in amplifier
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Chapter 5, FRONT PANEL OPERATION

5.2 Menu Structure

5-2
channel output from the first, allows the 7124 to make this measurement in a single
instrument.
Dual Harmonic
Dual harmonic mode allows the simultaneous measurement of two different
harmonics of the input signal.
The sections that follow describe the menus as they appear when the unit is being
used in single reference mode. The menus range from the Main Display, used most
of the time for instrument control and display of data, through to those menus
accessing controls which typically only need changing occasionally.
The menus for the other three operating modes are then described, since in some
cases these differ from those used in single reference mode to accommodate the
additional controls and displays that are needed.
Figure 5-1 shows the basic structure of the main instrument control menus which, it
will be seen, has a hierarchical, or "tree", structure.
In the diagram, although not in the rest of this manual, the following syntax is used:-
The menus are shown as boxes, with menu names in gothic typeface, e.g.
MAIN MENU, and arrows on the lines connecting the menus and the text adjacent to
them indicate the keys which need to be pressed to move between menus.
The following examples should make this clear.
To access Main Menu 1 from the Main Display, press the Menu key in the lower
right-hand corner of the screen.
To access the Signal Channel menu from the Main Display, press the Menu key
Figure 5-1, Main Menu Structure

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