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The Output Offset Ref 1 menu has three controls affecting the instrument's
X1 channel and Y1 channel outputs and a key to access a further sub-menu which
has corresponding controls for the X2 channel and Y2 channel. Changes to the
setting of these controls can be made by using the adjacent
currently active selection being highlighted.
X1 OFFSET and Y1 OFFSET
These controls, which duplicate the Main Display X1 OFFSET and Y1 OFFSET
controls, allow manual adjustment of the X1 channel and Y1 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 X1 channel or Y1 channel output when the
X1 channel or Y1 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 1 function, which also switches
on both X1 channel and Y1 channel output offsets.
OFFSET STATUS
This control allows the X1 channel and Y1 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 X1 channel and Y1 channel output offsets are switched off.
X1
The X1 channel output offset is switched on.
Y1
The Y1 channel output offset is switched on.
X&Y1
Both X1 channel and Y1 channel output offsets are switched on.
AUTO OFFSET1
This control adjusts the X1 offset and Y1 offset values so that the X1 channel and
Y1 channel outputs are zero. Any small residual values can normally be removed by
calling Auto-Offset for a second time after a suitable delay to allow the outputs to
Chapter 5, FRONT PANEL OPERATION
Figure 5-55, Output Offset Ref 1 Menu
keys, with the
5-71
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