Six traces, EXPAND A, B (46), MEMORY C, D (47), and FUNCTION E, F
are controlled by the Display Control knobs and buttons (39)-(45).
one trace is controllable at a time. The identity of the controlled
trace is indicated by a rectangular frame around the waveform
descriptor in the Displayed Trace field (V).
Whenever more than one of the six traces listed above are currently
displayed, the frame may be moved to the next trace by pressing the
SELECT button (44).
Horizontal POSITION knob (39) - Horizontally positions an expanded
waveform and the intensified region along the source trace. This
control is activated only after the EXPAND A and/or B buttons (46) have
been pressed to display the expanded trace. The Horizontal POSITION
knob allows the user to scroll continuously through a displayed
waveform. However, if the source trace was recorded in sequence mode
(i.e. a number of sequentially acquired traces was stored in
partitioned memory blocks), the movement of the Horizontal POSITION
knob will be discrete allowing any single segment to be selected.
The Horizontal POSITION control affects only EXPAND A, B.
Vertical POSITION knob (40) - Vertically repositions the trace.
RESET button (41) - Serves to reset previously adjusted VERT GAIN,
Vertical and/or Horizontal POSITION to the following default values:
VERT GAIN
Vertical POSITION
Horizontal POSITION
-
Same as the original trace
-
Same as the original trace
- Center of the original trace
In the Common Expand mode (See Section 5.2.5.2), this button is used
synchronize the two intensified regions of EXPAND A and B.
VERT GAIN knob (42) - Turning the knob clockwise allows vertical
expansion by a factor of up to 2.5. Counterclockwise rotation allows
vertical contraction by a factor of up to 2.5. If the vernier knob is
not in the detent position it is possible to achieve vertical expansion
by a factor of up to 5.
Pressing RESET (41) returns gain control to a mid-range plateau
corresponding to a gain of I. If the 9400A is equipped with WP01, the
vertical gain is increased from 2.5 to I0 for averages, mathematics and
functions.
5-13
Manual Operation
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