Auto Functions Menu - Ametek 7280 Instruction Manual

Wide bandwidth dsp lock-in amplifier
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X2 OFFSET and Y2 OFFSET
These controls, which duplicate the Main Display X2 OFFSET and Y2 OFFSET
controls, allow manual adjustment of the X2 channel and Y2 channel output offsets.
The offset level set by the controls, which can be any value between -300% and
+300% in 0.01% steps, is added to the X2 channel or Y2 channel output when the X2
channel or Y2 channel offset is switched on. Adjustment is faster using the Keypad
or Active Cursor controls - see section 4.1.04.
The values are set automatically by the Auto-Offset 2 function, which also switches
on both X2 channel and Y2 channel output offsets.
OFFSET 2 STATUS
This control allows the X2 channel and Y2 channel output offsets, set by the above
level controls, to be switched on to either or both outputs, or to be switched off. It
therefore has four settings, as follows:-
NONE
Both X2 channel and Y2 channel output offsets are switched off.
X
The X2 channel output offset is switched on.
Y
The Y2 channel output offset is switched on.
X&Y
Both X2 channel and Y2 channel output offsets are switched on.
Pressing the Previous Menu key returns control to the Output Offset Harm 1 Menu.

5.6.07 Auto Functions Menu

In dual harmonic mode, pressing a key adjacent to the Auto Functions item on Main
Menu 1 accesses the Auto Functions menu, shown in figure 5-54.
Chapter 5, FRONT PANEL OPERATION
5-85

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