Horizontal Controls - Tektronix 222 Operator's Manual

What the Controls Do-222 DSO Operators
3.6 HORIZONTAL CONTROLS
Refer to Figure 3-7 for the location of the following items.
Figure 3-7. Horizontal controls.
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SECIDIV Switch (outer knob)-sets the horizontal time
scaling (seconds per division) of the acquisition and display in a
1-2-5 switching sequence. The scaling range is from 50
nanoseconds per division to 20 seconds per division (XI0 MAG
decreases the time per division scaling by a factor of 10). The
SECIDIV switch setting is displayed in the bottom line of
readout.
There are default acquisition and display modes that are
selected by the SECIDIV switch depending on the Trigger
MODE in effect. See the Supplementary Information in Sec-
tion 6, para. 6.5.
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Horizontal POSITION Control (inner knob)
-
used to move
the waveform displays horizontally. The traces may be
positioned to the left or right up to one half the trace length.
3-12 REV JUN 1989